PR for the GDS AIO code.

---------

Co-authored-by: Olatunji Ruwase <olruwase@microsoft.com>
Co-authored-by: Logan Adams <loadams@microsoft.com>
Co-authored-by: Ubuntu <deepspeed@H100-VM2.shlnn55tgwve1eacvp21ie45dg.jx.internal.cloudapp.net>
Co-authored-by: Logan Adams <114770087+loadams@users.noreply.github.com>
This commit is contained in:
Joe Mayer 2024-08-18 21:28:50 -07:00 коммит произвёл GitHub
Родитель c2e3a706b5
Коммит 5f0d177fd7
Не найден ключ, соответствующий данной подписи
Идентификатор ключа GPG: B5690EEEBB952194
43 изменённых файлов: 2148 добавлений и 765 удалений

2
.github/workflows/nv-pre-compile-ops.yml поставляемый
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@ -36,7 +36,7 @@ jobs:
#python -c "import torch; print('CUDA available:', torch.cuda.is_available())"
- name: Compile DeepSpeed Ops
run: |
DS_ACCELERATOR=cuda DS_ENABLE_NINJA=1 TORCH_CUDA_ARCH_LIST="7.0;7.5;8.0" DS_BUILD_OPS=1 DS_BUILD_SPARSE_ATTN=0 DS_BUILD_FP_QUANTIZER=0 DS_BUILD_CUTLASS_OPS=0 DS_BUILD_RAGGED_DEVICE_OPS=0 DS_BUILD_EVOFORMER_ATTN=0 pip3 install .
DS_ACCELERATOR=cuda DS_ENABLE_NINJA=1 TORCH_CUDA_ARCH_LIST="7.0;7.5;8.0" DS_BUILD_OPS=1 DS_BUILD_SPARSE_ATTN=0 DS_BUILD_FP_QUANTIZER=0 DS_BUILD_CUTLASS_OPS=0 DS_BUILD_GDS=0 DS_BUILD_RAGGED_DEVICE_OPS=0 DS_BUILD_EVOFORMER_ATTN=0 pip3 install .
- name: DS Report
run: |
ds_report

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@ -0,0 +1,38 @@
// Copyright (c) Microsoft Corporation.
// SPDX-License-Identifier: Apache-2.0
// DeepSpeed Team
#include "deepspeed_aio_op_desc.h"
using namespace std;
io_op_desc_t::io_op_desc_t(const bool read_op,
const torch::Tensor& buffer,
const int fd,
const char* filename,
const long long int file_num_bytes,
const int num_threads,
const bool validate)
: _read_op(read_op),
_buffer(buffer),
_fd(fd),
_filename(filename),
_file_num_bytes(file_num_bytes),
_num_threads(num_threads),
_num_bytes_per_thread(file_num_bytes / num_threads),
_validate(validate)
{
}
char* io_op_desc_t::data_ptr() const { return (char*)_contiguous_buffer.data_ptr(); }
void io_op_desc_t::finish() {}
void io_op_desc_t::validate() {}
void io_op_desc_t::run(const int tid,
std::unique_ptr<aio_context>& aio_ctxt,
deepspeed_aio_config_t* aio_config)
{
}

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@ -0,0 +1,41 @@
// Copyright (c) Microsoft Corporation.
// SPDX-License-Identifier: Apache-2.0
// DeepSpeed Team
#ifndef _IO_OP_DESC_T_
#define _IO_OP_DESC_T_
#include <memory>
#include <queue>
#include "deepspeed_py_aio.h"
struct io_op_desc_t {
const bool _read_op;
torch::Tensor _buffer;
int _fd;
const std::string _filename;
const long long int _file_num_bytes;
const int _num_threads;
const int _num_bytes_per_thread;
torch::Tensor _contiguous_buffer;
const bool _validate;
io_op_desc_t(const bool read_op,
const torch::Tensor& buffer,
const int fd,
const char* filename,
const long long int file_num_bytes,
const int num_threads,
const bool validate);
virtual void run(const int tid,
std::unique_ptr<aio_context>& aio_ctxt,
deepspeed_aio_config_t* aio_config);
virtual char* data_ptr() const;
virtual void validate();
virtual void finish();
};
#endif // _IO_OP_DESC_T_

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@ -9,50 +9,8 @@ Functionality for swapping optimizer tensors to/from (NVMe) storage devices.
#include "deepspeed_aio_thread.h"
#if defined(__ENABLE_CANN__)
#include "torch_npu/csrc/framework/utils/OpAdapter.h"
#include "torch_npu/csrc/framework/utils/UtilForOpAdapter.h"
#endif
using namespace std;
io_op_desc_t::io_op_desc_t(const bool read_op,
const torch::Tensor& buffer,
const int fd,
const char* filename,
const long long int num_bytes,
const bool validate)
: _read_op(read_op),
_buffer(buffer),
_fd(fd),
_filename(filename),
_num_bytes(num_bytes),
_validate(validate)
{
_cpu_buffer = (_buffer.is_cuda() || _buffer.is_xpu()
#if defined(__ENABLE_CANN__)
|| torch_npu::utils::is_npu(_buffer)
#endif
)
? _buffer.to(torch::kCPU).pin_memory()
: _buffer;
_contiguous_buffer = _cpu_buffer.contiguous();
}
char* io_op_desc_t::data_ptr() const { return (char*)_contiguous_buffer.data_ptr(); }
void io_op_desc_t::fini()
{
if (_read_op && _buffer.is_cuda()) { _buffer.copy_(_cpu_buffer.to(torch::kCUDA)); }
if (_read_op && _buffer.is_xpu()) { _buffer.copy_(_cpu_buffer.to(torch::kXPU)); }
#if defined(__ENABLE_CANN__)
if (_read_op && torch_npu::utils::is_npu(_buffer)) {
auto device = at::Device("npu:0");
_buffer.copy_(_cpu_buffer.to(device));
}
#endif
}
deepspeed_aio_thread_t::deepspeed_aio_thread_t(const int tid, deepspeed_aio_config_t& aio_config)
: _tid(tid),
_aio_config(aio_config),
@ -79,18 +37,7 @@ void deepspeed_aio_thread_t::run()
}
if (next_io_op) {
const auto base_offset = next_io_op->_num_bytes * _tid;
std::unique_ptr<io_xfer_ctxt> xfer_ctxt(new io_xfer_ctxt(
next_io_op->_fd, base_offset, next_io_op->_num_bytes, next_io_op->data_ptr()));
if (_aio_config._overlap_events) {
do_aio_operation_overlap(
next_io_op->_read_op, _aio_ctxt, xfer_ctxt, &_aio_config, nullptr);
} else {
do_aio_operation_sequential(
next_io_op->_read_op, _aio_ctxt, xfer_ctxt, &_aio_config, nullptr);
}
next_io_op->run(_tid, _aio_ctxt, &_aio_config);
{
std::lock_guard<std::mutex> lock(_complete_sync._mutex);

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@ -10,28 +10,7 @@ Functionality for swapping optimizer tensors to/from (NVMe) storage devices.
#include <condition_variable>
#include <memory>
#include <queue>
#include "deepspeed_py_aio.h"
struct io_op_desc_t {
const bool _read_op;
torch::Tensor _buffer;
int _fd;
const std::string _filename;
const long long int _num_bytes;
torch::Tensor _cpu_buffer;
torch::Tensor _contiguous_buffer;
const bool _validate;
io_op_desc_t(const bool read_op,
const torch::Tensor& buffer,
const int fd,
const char* filename,
const long long int num_bytes,
const bool validate);
char* data_ptr() const;
void fini();
};
#include "deepspeed_cpu_op.h"
struct thread_sync_t {
std::mutex _mutex;

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@ -0,0 +1,72 @@
// Copyright (c) Microsoft Corporation.
// SPDX-License-Identifier: Apache-2.0
// DeepSpeed Team
#include "deepspeed_cpu_op.h"
using namespace std;
cpu_op_desc_t::cpu_op_desc_t(const bool read_op,
const torch::Tensor& buffer,
const int fd,
const char* filename,
const long long int file_num_bytes,
const int num_threads,
const bool validate)
: io_op_desc_t(read_op, buffer, fd, filename, file_num_bytes, num_threads, validate),
_cpu_buffer(buffer)
{
// Need to use CPU bounce buffer if buffer is not a page-locked DRAM memory.
_use_bounce_buffer = !(_buffer.is_cpu() && _buffer.is_pinned());
if (_use_bounce_buffer) {
if (_read_op) {
auto options = torch::TensorOptions()
.dtype(_buffer.dtype())
.layout(_buffer.layout())
.device(torch::kCPU);
_cpu_buffer = torch::empty(_buffer.nbytes(), options).pin_memory();
} else {
_cpu_buffer = _buffer.to(torch::kCPU).pin_memory();
}
}
_contiguous_buffer = _cpu_buffer.contiguous();
}
char* cpu_op_desc_t::data_ptr() const { return (char*)_contiguous_buffer.data_ptr(); }
void cpu_op_desc_t::finish()
{
if (_read_op) {
if (_buffer.is_cuda()) { _buffer.copy_(_cpu_buffer.to(torch::kCUDA)); }
if (_buffer.is_xpu()) { _buffer.copy_(_cpu_buffer.to(torch::kXPU)); }
#if defined(__ENABLE_CANN__)
if (torch_npu::utils::is_npu(_buffer)) {
auto device = at::Device("npu:0");
_buffer.copy_(_cpu_buffer.to(device));
}
#endif
}
}
void cpu_op_desc_t::validate()
{
validate_aio_operation(_read_op, _filename.c_str(), data_ptr(), _file_num_bytes);
}
void cpu_op_desc_t::run(const int tid,
std::unique_ptr<aio_context>& aio_ctxt,
deepspeed_aio_config_t* aio_config)
{
assert(tid < _num_threads);
const auto base_offset = _num_bytes_per_thread * tid;
std::unique_ptr<io_xfer_ctxt> xfer_ctxt(
new io_xfer_ctxt(_fd, base_offset, _num_bytes_per_thread, data_ptr()));
if (aio_config->_overlap_events) {
do_aio_operation_overlap(_read_op, aio_ctxt, xfer_ctxt, aio_config, nullptr);
} else {
do_aio_operation_sequential(_read_op, aio_ctxt, xfer_ctxt, aio_config, nullptr);
}
}

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@ -0,0 +1,31 @@
// Copyright (c) Microsoft Corporation.
// SPDX-License-Identifier: Apache-2.0
// DeepSpeed Team
#include <memory>
#include <queue>
#include "deepspeed_aio_op_desc.h"
struct cpu_op_desc_t : io_op_desc_t {
torch::Tensor _cpu_buffer;
bool _use_bounce_buffer;
cpu_op_desc_t(const bool read_op,
const torch::Tensor& buffer,
const int fd,
const char* filename,
const long long int file_num_bytes,
const int num_threads,
const bool validate);
void run(const int tid,
std::unique_ptr<aio_context>& aio_ctxt,
deepspeed_aio_config_t* aio_config);
char* data_ptr() const;
void validate();
void finish();
};

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@ -4,9 +4,6 @@
// DeepSpeed Team
/*
Copyright 2020 The Microsoft DeepSpeed Team
Licensed under the MIT license.
Functionality for swapping optimizer tensors to/from (NVMe) storage devices.
*/

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@ -4,10 +4,7 @@
// DeepSpeed Team
/*
Copyright 2020 The Microsoft DeepSpeed Team
Licensed under the MIT license.
Functionality for swapping optimizer tensors to/from (NVMe) storage devices.
Functionality for swapping tensors to/from (NVMe) storage devices.
*/
#include <deepspeed_aio_common.h>

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@ -4,293 +4,21 @@
// DeepSpeed Team
/*
Copyright 2020 The Microsoft DeepSpeed Team
Licensed under the MIT license.
Functionality for swapping optimizer tensors to/from (NVMe) storage devices.
*/
#include "deepspeed_py_aio_handle.h"
#include <cstdlib>
using namespace std;
static void _start_aio_thread(std::shared_ptr<struct deepspeed_aio_thread_t> ctxt) { ctxt->run(); }
deepspeed_aio_handle_t::deepspeed_aio_handle_t(const int block_size,
const int queue_depth,
const bool single_submit,
const bool overlap_events,
const int num_threads)
: _aio_ctxt(new aio_context(block_size, queue_depth)),
_single_submit(single_submit),
_overlap_events(overlap_events),
_num_threads(num_threads),
_aio_config(block_size, queue_depth, single_submit, overlap_events, false),
_num_pending_ops(0),
_pinned_tensor_mgr(new deepspeed_pin_tensor_t())
: deepspeed_io_handle_t(block_size, queue_depth, single_submit, overlap_events, num_threads)
{
for (auto i = 0; i < num_threads; ++i) {
_thread_contexts.push_back(std::make_shared<deepspeed_aio_thread_t>(i, _aio_config));
}
for (auto& ctxt : _thread_contexts) {
_threads.push_back(std::thread(_start_aio_thread, ctxt));
}
}
deepspeed_aio_handle_t::~deepspeed_aio_handle_t()
{
_stop_threads();
for (auto& thr : _threads) { thr.join(); }
}
const int deepspeed_aio_handle_t::get_block_size() const
{
return _aio_ctxt ? _aio_ctxt->_block_size : -1;
}
const int deepspeed_aio_handle_t::get_queue_depth() const
{
return _aio_ctxt ? _aio_ctxt->_queue_depth : -1;
}
const bool deepspeed_aio_handle_t::get_single_submit() const { return _single_submit; }
const bool deepspeed_aio_handle_t::get_overlap_events() const { return _overlap_events; }
const int deepspeed_aio_handle_t::get_thread_count() const { return _num_threads; }
int deepspeed_aio_handle_t::read(torch::Tensor& buffer, const char* filename, const bool validate)
{
const auto start_time = std::chrono::high_resolution_clock::now();
assert(_aio_ctxt);
long long num_file_bytes;
if (-1 == get_file_size(filename, num_file_bytes)) {
const auto error_code = errno;
report_file_error(filename, " fstat for read", error_code);
return -1;
}
assert(static_cast<long long int>(buffer.nbytes()) == num_file_bytes);
const auto fd = open_file(filename, true);
if (fd == -1) { return -1; }
auto read_buffer = (char*)buffer.data_ptr();
std::unique_ptr<io_xfer_ctxt> xfer_ctxt(new io_xfer_ctxt(fd, 0, num_file_bytes, read_buffer));
if (_aio_config._overlap_events) {
do_aio_operation_overlap(true, _aio_ctxt, xfer_ctxt, &_aio_config, nullptr);
} else {
do_aio_operation_sequential(true, _aio_ctxt, xfer_ctxt, &_aio_config, nullptr);
}
close(fd);
const std::chrono::duration<double> aio_time =
std::chrono::high_resolution_clock::now() - start_time;
if (validate) { validate_aio_operation(true, filename, read_buffer, num_file_bytes); }
const std::chrono::duration<double> fn_time =
std::chrono::high_resolution_clock::now() - start_time;
std::cout << "Elapsed time(usec): " << "aio = " << aio_time.count() * 1e6
<< " call = " << fn_time.count() * 1e6 << std::endl;
return 0;
}
int deepspeed_aio_handle_t::write(const torch::Tensor& buffer,
const char* filename,
const bool validate)
{
assert(_aio_ctxt);
const auto start_time = std::chrono::high_resolution_clock::now();
const auto fd = open_file(filename, false);
if (fd == -1) { return -1; }
auto write_buffer = (char*)buffer.data_ptr();
const auto num_write_bytes = static_cast<long long int>(buffer.nbytes());
std::unique_ptr<io_xfer_ctxt> xfer_ctxt(new io_xfer_ctxt(fd, 0, num_write_bytes, write_buffer));
if (_aio_config._overlap_events) {
do_aio_operation_overlap(false, _aio_ctxt, xfer_ctxt, &_aio_config, nullptr);
} else {
do_aio_operation_sequential(false, _aio_ctxt, xfer_ctxt, &_aio_config, nullptr);
}
const std::chrono::duration<double> aio_time =
std::chrono::high_resolution_clock::now() - start_time;
close(fd);
if (validate) { validate_aio_operation(false, filename, write_buffer, num_write_bytes); }
const std::chrono::duration<double> fn_time =
std::chrono::high_resolution_clock::now() - start_time;
std::cout << "Elapsed time(usec): " << "aio = " << aio_time.count() * 1e6
<< " call = " << fn_time.count() * 1e6 << std::endl;
return 0;
}
void deepspeed_aio_handle_t::_schedule_aio_work(std::shared_ptr<struct io_op_desc_t> scheduled_op)
{
for (auto& ctxt : _thread_contexts) {
{
std::lock_guard<std::mutex> lock(ctxt->_work_sync._mutex);
ctxt->_work_queue.push(scheduled_op);
}
ctxt->_work_sync._cond_var.notify_one();
}
_num_pending_ops++;
}
std::shared_ptr<struct io_op_desc_t> deepspeed_aio_handle_t::_wait_for_aio_work()
{
std::shared_ptr<struct io_op_desc_t> completed_op = nullptr;
for (auto& ctxt : _thread_contexts) {
std::unique_lock<std::mutex> lock(ctxt->_complete_sync._mutex);
ctxt->_complete_sync._cond_var.wait(lock,
[ctxt] { return !ctxt->_complete_queue.empty(); });
completed_op = ctxt->_complete_queue.front();
ctxt->_complete_queue.pop();
}
return completed_op;
}
void deepspeed_aio_handle_t::_stop_threads()
{
assert(0 == _num_pending_ops);
for (auto& ctxt : _thread_contexts) {
{
std::lock_guard<std::mutex> lock(ctxt->_work_sync._mutex);
ctxt->_time_to_exit = true;
}
ctxt->_work_sync._cond_var.notify_one();
}
}
int deepspeed_aio_handle_t::wait()
{
assert(_num_pending_ops > 0);
auto num_completed_ops = 0;
while (_num_pending_ops > 0) {
auto completed_op = _wait_for_aio_work();
completed_op->fini();
close(completed_op->_fd);
if (completed_op->_validate) {
validate_aio_operation(completed_op->_read_op,
completed_op->_filename.c_str(),
completed_op->data_ptr(),
_num_threads * completed_op->_num_bytes);
}
--_num_pending_ops;
++num_completed_ops;
}
return num_completed_ops;
}
bool deepspeed_aio_handle_t::_is_valid_parallel_aio_op(const bool read_op,
const long long int num_bytes)
{
const auto op_string = read_op ? "Read" : "Write";
if (num_bytes % get_thread_count()) {
std::cout << "deepspeed_aio failure: parallel " << op_string << " num_bytes = " << num_bytes
<< " not divisible by thread count = " << get_thread_count() << std::endl;
return false;
}
return true;
}
int deepspeed_aio_handle_t::pread(const torch::Tensor& buffer,
const char* filename,
const bool validate,
const bool async)
{
long long num_file_bytes;
if (-1 == get_file_size(filename, num_file_bytes)) {
const auto error_code = errno;
report_file_error(filename, " fstat for read", error_code);
return -1;
}
const auto buffer_bytes = static_cast<long long int>(buffer.nbytes());
if (buffer_bytes != num_file_bytes) {
std::cout << filename << ": buffer nbytes != file bytes " << buffer_bytes
<< " != " << num_file_bytes << std::endl;
}
assert(static_cast<long long int>(buffer.nbytes()) == num_file_bytes);
assert((num_file_bytes % _num_threads) == 0);
if (!_is_valid_parallel_aio_op(true, num_file_bytes)) { return -1; }
const auto fd = open_file(filename, true);
if (fd == -1) { return -1; }
auto scheduled_op = std::make_shared<io_op_desc_t>(
true, buffer, fd, filename, (num_file_bytes / _num_threads), validate);
_schedule_aio_work(scheduled_op);
if (async) { return 0; }
return wait();
}
int deepspeed_aio_handle_t::pwrite(const torch::Tensor& buffer,
const char* filename,
const bool validate,
const bool async)
{
const auto num_write_bytes = static_cast<long long int>(buffer.nbytes());
assert((num_write_bytes % _num_threads) == 0);
if (!_is_valid_parallel_aio_op(false, num_write_bytes)) { return -1; }
const auto fd = open_file(filename, false);
if (fd == -1) { return -1; }
auto scheduled_op = std::make_shared<io_op_desc_t>(
false, buffer, fd, filename, (num_write_bytes / _num_threads), validate);
_schedule_aio_work(scheduled_op);
if (async) { return 0; }
return wait();
}
int deepspeed_aio_handle_t::sync_pread(torch::Tensor& buffer, const char* filename)
{
return pread(buffer, filename, false, false);
}
int deepspeed_aio_handle_t::sync_pwrite(const torch::Tensor& buffer, const char* filename)
{
return pwrite(buffer, filename, false, false);
}
int deepspeed_aio_handle_t::async_pread(torch::Tensor& buffer, const char* filename)
{
return pread(buffer, filename, false, true);
}
int deepspeed_aio_handle_t::async_pwrite(const torch::Tensor& buffer, const char* filename)
{
return pwrite(buffer, filename, false, true);
}
at::Tensor deepspeed_aio_handle_t::new_cpu_locked_tensor(const size_t num_elem,
const torch::Tensor& example_tensor)
{
return _pinned_tensor_mgr->alloc(num_elem, example_tensor.scalar_type());
}
bool deepspeed_aio_handle_t::free_cpu_locked_tensor(torch::Tensor& locked_tensor)
{
return _pinned_tensor_mgr->free(locked_tensor);
}
deepspeed_aio_handle_t::~deepspeed_aio_handle_t() {}

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@ -9,21 +9,9 @@ Functionality for swapping optimizer tensors to/from (NVMe) storage devices.
#include <condition_variable>
#include <memory>
#include "deepspeed_aio_thread.h"
#include "deepspeed_pin_tensor.h"
struct deepspeed_aio_handle_t {
std::unique_ptr<struct aio_context> _aio_ctxt;
const bool _single_submit;
const bool _overlap_events;
const int _num_threads;
deepspeed_aio_config_t _aio_config;
std::vector<std::shared_ptr<struct deepspeed_aio_thread_t>> _thread_contexts;
std::vector<std::thread> _threads;
int _num_pending_ops;
std::unique_ptr<struct deepspeed_pin_tensor_t> _pinned_tensor_mgr;
#include "deepspeed_py_io_handle.h"
struct deepspeed_aio_handle_t : deepspeed_io_handle_t {
deepspeed_aio_handle_t(const int block_size,
const int queue_depth,
const bool single_submit,
@ -31,47 +19,4 @@ struct deepspeed_aio_handle_t {
const int num_threads);
~deepspeed_aio_handle_t();
const int get_block_size() const;
const int get_queue_depth() const;
const bool get_single_submit() const;
const bool get_overlap_events() const;
const int get_thread_count() const;
int read(torch::Tensor& buffer, const char* filename, const bool validate);
int write(const torch::Tensor& buffer, const char* filename, const bool validate);
int pread(const torch::Tensor& buffer,
const char* filename,
const bool validate,
const bool async);
int pwrite(const torch::Tensor& buffer,
const char* filename,
const bool validate,
const bool async);
int sync_pread(torch::Tensor& buffer, const char* filename);
int sync_pwrite(const torch::Tensor& buffer, const char* filename);
int async_pread(torch::Tensor& buffer, const char* filename);
int async_pwrite(const torch::Tensor& buffer, const char* filename);
// TODO: Make API's args to be shape and dtype.
torch::Tensor new_cpu_locked_tensor(const size_t num_elem, const torch::Tensor& example_tensor);
bool free_cpu_locked_tensor(torch::Tensor&);
int wait();
void _stop_threads();
void _schedule_aio_work(std::shared_ptr<struct io_op_desc_t> scheduled_op);
std::shared_ptr<struct io_op_desc_t> _wait_for_aio_work();
bool _is_valid_parallel_aio_op(const bool read_op, const long long int num_bytes);
};

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@ -4,7 +4,7 @@
// DeepSpeed Team
/*
Functionality for swapping optimizer tensors to/from (NVMe) storage devices.
Functionality for swapping tensors to/from (NVMe) storage devices.
*/
#include "deepspeed_py_copy.h"

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@ -4,9 +4,6 @@
// DeepSpeed Team
/*
Copyright 2020 The Microsoft DeepSpeed Team
Licensed under the MIT license.
Functionality for swapping optimizer tensors to/from (NVMe) storage devices.
*/

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@ -0,0 +1,300 @@
// Copyright (c) Microsoft Corporation.
// SPDX-License-Identifier: Apache-2.0
// DeepSpeed Team
/*
Functionality for swapping optimizer tensors to/from (NVMe) storage devices.
*/
#include "deepspeed_py_io_handle.h"
#include <cstdlib>
using namespace std;
static void _start_aio_thread(std::shared_ptr<struct deepspeed_aio_thread_t> ctxt) { ctxt->run(); }
deepspeed_io_handle_t::deepspeed_io_handle_t(const int block_size,
const int queue_depth,
const bool single_submit,
const bool overlap_events,
const int num_threads)
: _aio_ctxt(new aio_context(block_size, queue_depth)),
_single_submit(single_submit),
_overlap_events(overlap_events),
_num_threads(num_threads),
_aio_config(block_size, queue_depth, single_submit, overlap_events, false),
_num_pending_ops(0),
_pinned_tensor_mgr(new deepspeed_pin_tensor_t())
{
for (auto i = 0; i < num_threads; ++i) {
_thread_contexts.push_back(std::make_shared<deepspeed_aio_thread_t>(i, _aio_config));
}
for (auto& ctxt : _thread_contexts) {
_threads.push_back(std::thread(_start_aio_thread, ctxt));
}
}
deepspeed_io_handle_t::~deepspeed_io_handle_t()
{
_stop_threads();
for (auto& thr : _threads) { thr.join(); }
}
const int deepspeed_io_handle_t::get_block_size() const
{
return _aio_ctxt ? _aio_ctxt->_block_size : -1;
}
const int deepspeed_io_handle_t::get_queue_depth() const
{
return _aio_ctxt ? _aio_ctxt->_queue_depth : -1;
}
const bool deepspeed_io_handle_t::get_single_submit() const { return _single_submit; }
const bool deepspeed_io_handle_t::get_overlap_events() const { return _overlap_events; }
const int deepspeed_io_handle_t::get_thread_count() const { return _num_threads; }
int deepspeed_io_handle_t::read(torch::Tensor& buffer, const char* filename, const bool validate)
{
const auto start_time = std::chrono::high_resolution_clock::now();
assert(_aio_ctxt);
long long num_file_bytes;
if (-1 == get_file_size(filename, num_file_bytes)) {
const auto error_code = errno;
report_file_error(filename, " fstat for read", error_code);
return -1;
}
assert(static_cast<long long int>(buffer.nbytes()) == num_file_bytes);
const auto fd = open_file(filename, true);
if (fd == -1) { return -1; }
auto read_buffer = (char*)buffer.data_ptr();
std::unique_ptr<io_xfer_ctxt> xfer_ctxt(new io_xfer_ctxt(fd, 0, num_file_bytes, read_buffer));
if (_aio_config._overlap_events) {
do_aio_operation_overlap(true, _aio_ctxt, xfer_ctxt, &_aio_config, nullptr);
} else {
do_aio_operation_sequential(true, _aio_ctxt, xfer_ctxt, &_aio_config, nullptr);
}
close(fd);
const std::chrono::duration<double> aio_time =
std::chrono::high_resolution_clock::now() - start_time;
if (validate) { validate_aio_operation(true, filename, read_buffer, num_file_bytes); }
const std::chrono::duration<double> fn_time =
std::chrono::high_resolution_clock::now() - start_time;
std::cout << "Elapsed time(usec): " << "aio = " << aio_time.count() * 1e6
<< " call = " << fn_time.count() * 1e6 << std::endl;
return 0;
}
int deepspeed_io_handle_t::write(const torch::Tensor& buffer,
const char* filename,
const bool validate)
{
assert(_aio_ctxt);
const auto start_time = std::chrono::high_resolution_clock::now();
const auto fd = open_file(filename, false);
if (fd == -1) { return -1; }
auto write_buffer = (char*)buffer.data_ptr();
const auto num_write_bytes = static_cast<long long int>(buffer.nbytes());
std::unique_ptr<io_xfer_ctxt> xfer_ctxt(new io_xfer_ctxt(fd, 0, num_write_bytes, write_buffer));
if (_aio_config._overlap_events) {
do_aio_operation_overlap(false, _aio_ctxt, xfer_ctxt, &_aio_config, nullptr);
} else {
do_aio_operation_sequential(false, _aio_ctxt, xfer_ctxt, &_aio_config, nullptr);
}
const std::chrono::duration<double> aio_time =
std::chrono::high_resolution_clock::now() - start_time;
close(fd);
if (validate) { validate_aio_operation(false, filename, write_buffer, num_write_bytes); }
const std::chrono::duration<double> fn_time =
std::chrono::high_resolution_clock::now() - start_time;
std::cout << "Elapsed time(usec): " << "aio = " << aio_time.count() * 1e6
<< " call = " << fn_time.count() * 1e6 << std::endl;
return 0;
}
void deepspeed_io_handle_t::_schedule_aio_work(std::shared_ptr<struct io_op_desc_t> scheduled_op)
{
for (auto& ctxt : _thread_contexts) {
{
std::lock_guard<std::mutex> lock(ctxt->_work_sync._mutex);
ctxt->_work_queue.push(scheduled_op);
}
ctxt->_work_sync._cond_var.notify_one();
}
_num_pending_ops++;
}
std::shared_ptr<struct io_op_desc_t> deepspeed_io_handle_t::_wait_for_aio_work()
{
std::shared_ptr<struct io_op_desc_t> completed_op = nullptr;
for (auto& ctxt : _thread_contexts) {
std::unique_lock<std::mutex> lock(ctxt->_complete_sync._mutex);
ctxt->_complete_sync._cond_var.wait(lock,
[ctxt] { return !ctxt->_complete_queue.empty(); });
completed_op = ctxt->_complete_queue.front();
ctxt->_complete_queue.pop();
}
return completed_op;
}
void deepspeed_io_handle_t::_stop_threads()
{
assert(0 == _num_pending_ops);
for (auto& ctxt : _thread_contexts) {
{
std::lock_guard<std::mutex> lock(ctxt->_work_sync._mutex);
ctxt->_time_to_exit = true;
}
ctxt->_work_sync._cond_var.notify_one();
}
}
int deepspeed_io_handle_t::wait()
{
assert(_num_pending_ops > 0);
auto num_completed_ops = 0;
while (_num_pending_ops > 0) {
auto completed_op = _wait_for_aio_work();
if (completed_op->_validate) { completed_op->validate(); }
completed_op->finish();
close(completed_op->_fd);
--_num_pending_ops;
++num_completed_ops;
}
return num_completed_ops;
}
bool deepspeed_io_handle_t::_is_valid_parallel_aio_op(const bool read_op,
const long long int num_bytes)
{
const auto op_string = read_op ? "Read" : "Write";
if (num_bytes % get_thread_count()) {
std::cout << "deepspeed_aio failure: parallel " << op_string << " num_bytes = " << num_bytes
<< " not divisible by thread count = " << get_thread_count() << std::endl;
return false;
}
return true;
}
std::shared_ptr<struct io_op_desc_t> deepspeed_io_handle_t::_create_io_op_desc(
const bool read_op,
const torch::Tensor& buffer,
const int fd,
const char* filename,
const long long int file_num_bytes,
const bool validate)
{
return std::make_shared<cpu_op_desc_t>(
read_op, buffer, fd, filename, file_num_bytes, _num_threads, validate);
}
int deepspeed_io_handle_t::pread(const torch::Tensor& buffer,
const char* filename,
const bool validate,
const bool async)
{
long long num_file_bytes;
if (-1 == get_file_size(filename, num_file_bytes)) {
const auto error_code = errno;
report_file_error(filename, " fstat for read", error_code);
return -1;
}
const auto buffer_bytes = static_cast<long long int>(buffer.nbytes());
if (buffer_bytes != num_file_bytes) {
std::cout << filename << ": buffer nbytes != file bytes " << buffer_bytes
<< " != " << num_file_bytes << std::endl;
}
assert(static_cast<long long int>(buffer.nbytes()) == num_file_bytes);
assert((num_file_bytes % _num_threads) == 0);
if (!_is_valid_parallel_aio_op(true, num_file_bytes)) { return -1; }
const auto fd = open_file(filename, true);
if (fd == -1) { return -1; }
auto scheduled_op = _create_io_op_desc(true, buffer, fd, filename, num_file_bytes, validate);
_schedule_aio_work(scheduled_op);
if (async) { return 0; }
return wait();
}
int deepspeed_io_handle_t::pwrite(const torch::Tensor& buffer,
const char* filename,
const bool validate,
const bool async)
{
const auto num_write_bytes = static_cast<long long int>(buffer.nbytes());
assert((num_write_bytes % _num_threads) == 0);
if (!_is_valid_parallel_aio_op(false, num_write_bytes)) { return -1; }
const auto fd = open_file(filename, false);
if (fd == -1) { return -1; }
auto scheduled_op = _create_io_op_desc(false, buffer, fd, filename, num_write_bytes, validate);
_schedule_aio_work(scheduled_op);
if (async) { return 0; }
return wait();
}
int deepspeed_io_handle_t::sync_pread(torch::Tensor& buffer, const char* filename)
{
return pread(buffer, filename, false, false);
}
int deepspeed_io_handle_t::sync_pwrite(const torch::Tensor& buffer, const char* filename)
{
return pwrite(buffer, filename, false, false);
}
int deepspeed_io_handle_t::async_pread(torch::Tensor& buffer, const char* filename)
{
return pread(buffer, filename, false, true);
}
int deepspeed_io_handle_t::async_pwrite(const torch::Tensor& buffer, const char* filename)
{
return pwrite(buffer, filename, false, true);
}
at::Tensor deepspeed_io_handle_t::new_cpu_locked_tensor(const size_t num_elem,
const torch::Tensor& example_tensor)
{
return _pinned_tensor_mgr->alloc(num_elem, example_tensor.scalar_type());
}
bool deepspeed_io_handle_t::free_cpu_locked_tensor(torch::Tensor& locked_tensor)
{
return _pinned_tensor_mgr->free(locked_tensor);
}

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@ -0,0 +1,85 @@
// Copyright (c) Microsoft Corporation.
// SPDX-License-Identifier: Apache-2.0
// DeepSpeed Team
/*
Functionality for swapping optimizer tensors to/from (NVMe) storage devices.
*/
#include <condition_variable>
#include <memory>
#include "deepspeed_aio_thread.h"
#include "deepspeed_pin_tensor.h"
struct deepspeed_io_handle_t {
std::unique_ptr<struct aio_context> _aio_ctxt;
const bool _single_submit;
const bool _overlap_events;
const int _num_threads;
deepspeed_aio_config_t _aio_config;
std::vector<std::shared_ptr<struct deepspeed_aio_thread_t>> _thread_contexts;
std::vector<std::thread> _threads;
int _num_pending_ops;
std::unique_ptr<struct deepspeed_pin_tensor_t> _pinned_tensor_mgr;
deepspeed_io_handle_t(const int block_size,
const int queue_depth,
const bool single_submit,
const bool overlap_events,
const int num_threads);
virtual ~deepspeed_io_handle_t() = 0;
const int get_block_size() const;
const int get_queue_depth() const;
const bool get_single_submit() const;
const bool get_overlap_events() const;
const int get_thread_count() const;
int read(torch::Tensor& buffer, const char* filename, const bool validate);
int write(const torch::Tensor& buffer, const char* filename, const bool validate);
int pread(const torch::Tensor& buffer,
const char* filename,
const bool validate,
const bool async);
int pwrite(const torch::Tensor& buffer,
const char* filename,
const bool validate,
const bool async);
int sync_pread(torch::Tensor& buffer, const char* filename);
int sync_pwrite(const torch::Tensor& buffer, const char* filename);
int async_pread(torch::Tensor& buffer, const char* filename);
int async_pwrite(const torch::Tensor& buffer, const char* filename);
// TODO: Make API's args to be shape and dtype.
torch::Tensor new_cpu_locked_tensor(const size_t num_elem, const torch::Tensor& example_tensor);
bool free_cpu_locked_tensor(torch::Tensor&);
int wait();
void _stop_threads();
void _schedule_aio_work(std::shared_ptr<struct io_op_desc_t> scheduled_op);
std::shared_ptr<struct io_op_desc_t> _wait_for_aio_work();
bool _is_valid_parallel_aio_op(const bool read_op, const long long int num_bytes);
virtual std::shared_ptr<struct io_op_desc_t> _create_io_op_desc(
const bool read_op,
const torch::Tensor& buffer,
const int fd,
const char* filename,
const long long int file_num_bytes,
const bool validate);
};

86
csrc/aio/py_lib/py_ds_aio.cpp Executable file → Normal file
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@ -10,6 +10,7 @@ Functionality for swapping optimizer tensors to/from (NVMe) storage devices.
#include <torch/extension.h>
#include "deepspeed_py_aio_handle.h"
#include "deepspeed_py_copy.h"
using namespace pybind11::literals;
PYBIND11_MODULE(TORCH_EXTENSION_NAME, m)
{
@ -20,7 +21,13 @@ PYBIND11_MODULE(TORCH_EXTENSION_NAME, m)
m.def("deepspeed_memcpy", &deepspeed_py_memcpy, "DeepSpeed Memory Copy");
py::class_<deepspeed_aio_handle_t>(m, "aio_handle")
.def(py::init<const int, const int, const bool, const bool, const int>())
.def(py::init<const int, const int, const bool, const bool, const int>(),
"AIO handle constructor",
"block_size"_a = 1024 * 1024,
"queue_depth"_a = 128,
"single_submit"_a = false,
"overlap_events"_a = false,
"num_threads"_a = 1)
.def("get_block_size", &deepspeed_aio_handle_t::get_block_size)
.def("get_queue_depth", &deepspeed_aio_handle_t::get_queue_depth)
@ -28,19 +35,74 @@ PYBIND11_MODULE(TORCH_EXTENSION_NAME, m)
.def("get_overlap_events", &deepspeed_aio_handle_t::get_overlap_events)
.def("get_thread_count", &deepspeed_aio_handle_t::get_thread_count)
.def("read", &deepspeed_aio_handle_t::read)
.def("write", &deepspeed_aio_handle_t::write)
.def("read",
&deepspeed_aio_handle_t::read,
"Synchronous and non-parallel file read. Returns count of completed read ops",
"buffer"_a,
"filename"_a,
"validate"_a)
.def("pread", &deepspeed_aio_handle_t::pread)
.def("pwrite", &deepspeed_aio_handle_t::pwrite)
.def("write",
&deepspeed_aio_handle_t::write,
"Synchronous and non-parallel file write. Returns count of completed write ops",
"buffer"_a,
"filename"_a,
"validate"_a)
.def("sync_pread", &deepspeed_aio_handle_t::sync_pread)
.def("sync_pwrite", &deepspeed_aio_handle_t::sync_pwrite)
.def("async_pread", &deepspeed_aio_handle_t::async_pread)
.def("async_pwrite", &deepspeed_aio_handle_t::async_pwrite)
.def("pread",
&deepspeed_aio_handle_t::pread,
"Parallel file read with option of parallelism. Returns count of completed read ops",
"buffer"_a,
"filename"_a,
"validate"_a,
"async"_a)
.def("new_cpu_locked_tensor", &deepspeed_aio_handle_t::new_cpu_locked_tensor)
.def("free_cpu_locked_tensor", &deepspeed_aio_handle_t::free_cpu_locked_tensor)
.def("pwrite",
&deepspeed_aio_handle_t::pwrite,
"Parallel file write with option of parallelism. Returns count of completed write ops",
"buffer"_a,
"filename"_a,
"validate"_a,
"async"_a)
.def("wait", &deepspeed_aio_handle_t::wait);
.def("sync_pread",
&deepspeed_aio_handle_t::sync_pread,
"Synchrononous parallel file read. Returns count of completed read ops",
"buffer"_a,
"filename"_a)
.def("sync_pwrite",
&deepspeed_aio_handle_t::sync_pwrite,
"Synchronous parallel file write. Returns count of completed write ops",
"buffer"_a,
"filename"_a)
.def("async_pread",
&deepspeed_aio_handle_t::async_pread,
"Asynchronous parallel file read. Returns 0 on success. Returns 0 on success, and "
"following wait() returns count of completed ops.",
"buffer"_a,
"filename"_a)
.def("async_pwrite",
&deepspeed_aio_handle_t::async_pwrite,
"Asynchronous parallel file write. Returns 0 on success, and following wait() returns "
"count of completed ops.",
"buffer"_a,
"filename"_a)
.def("new_cpu_locked_tensor",
&deepspeed_aio_handle_t::new_cpu_locked_tensor,
"Allocate pinned CPU tensor.",
"num_elem"_a,
"example_tenosr"_a)
.def("free_cpu_locked_tensor",
&deepspeed_aio_handle_t::free_cpu_locked_tensor,
"Free pinned CPU tensor.",
"tensor"_a)
.def("wait",
&deepspeed_aio_handle_t::wait,
"Wait for (ongoing) asynchronous operations to complete");
}

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@ -41,9 +41,9 @@ def convert_to_param(key):
return {
"single_submit": "true" if key[0] == "single" else "false",
"overlap_events": "true" if key[1] == "overlap" else "false",
"thread_count": int(key[3]),
"queue_depth": int(key[4]),
"block_size": int(key[5])
"thread_count": int(key[5]),
"queue_depth": int(key[3]),
"block_size": int(key[4])
}

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@ -10,75 +10,47 @@ import sys
import argparse
import json
import itertools
import subprocess
import shutil
from test_ds_aio_utils import refine_integer_value
from ds_aio_job import Job, run_job
from perf_sweep_utils import READ_OP_DESC, WRITE_OP_DESC, BENCH_LOG_DIR, \
READ_IO_DIR, WRITE_IO_DIR, READ_LOG_DIR, WRITE_LOG_DIR
READ_LOG_DIR, WRITE_LOG_DIR
from deepspeed.ops.op_builder import AsyncIOBuilder
OTHER_OPTIONS = '--handle'
PERF_SCRIPT = 'test_ds_aio.py'
DEFAULT_SWEEP_CONFIG = {
"block_size": ["128K", "256K"],
"queue_depth": [4, 16, 32],
"overlap_events": [True, False],
"io_parallel": [2, 8],
"single_submit": [False]
"block_size": ["128K", "1M"],
"queue_depth": [32, 64, 128],
"sequential_requests": [True, False],
"single_submit": [False],
"io_parallel": [1, 2, 8],
}
class Job(object):
def __init__(self, cmd_line, output_file=None, work_dir=None):
self.cmd_line = cmd_line
self.output_file = output_file
self.work_dir = work_dir
self.output_fd = None
def cmd(self):
return self.cmd_line
def get_stdout(self):
return self.output_fd
def get_stderr(self):
return self.output_fd
def get_cwd(self):
return self.work_dir
def open_output_file(self):
if self.output_file is not None:
self.output_fd = open(self.output_file, 'w')
def close_output_file(self):
if self.output_fd is not None:
self.output_fd.close()
self.output_fd = None
class SweepConfig(object):
def __init__(self, args):
self.nvme_dir = args.nvme_dir
self.io_size = args.io_size
self.folder_to_device_mapping = get_ftd_map(args.nvme_dir)
self.search_space = get_sweep_config_dict(args.sweep_config)
self.search_space.update(self.folder_to_device_mapping)
self.read = not args.no_read
self.write = not args.no_write
self.flush_cache = not args.no_sudo
self.log_dir = args.log_dir
self.loops = args.loops
self.other_options = f'{OTHER_OPTIONS} --loops {args.loops}'
self.other_options = f'{OTHER_OPTIONS} --loops {args.loops} --io_size {args.io_size}'
if args.gpu:
self.other_options += ' --gpu'
if args.gds:
self.other_options += ' --use_gds'
def parse_arguments():
parser = argparse.ArgumentParser()
parser.add_argument('--nvme_dir',
nargs='+',
required=True,
type=str,
help='Directory in which to perform I/O tests. A writeable directory on a NVMe device.')
parser.add_argument('--sweep_config', type=str, default=None, help='Performance sweep configuration json file.')
@ -92,6 +64,10 @@ def parse_arguments():
default="400M",
help='Number of I/O bytes to read/write for performance measurements.')
parser.add_argument('--gpu', action='store_true', help='Test tensor transfers between GPU device and NVME device.')
parser.add_argument('--gds', action='store_true', help='Run the sweep over NVIDIA GPUDirectStorage operator')
parser.add_argument(
'--no_sudo',
action='store_true',
@ -118,6 +94,12 @@ def dump_cmd_lines(cmd_lines):
print(f'{i}: {cmd}')
def get_ftd_map(nvme_dir_list):
ftd_list = [f'{dir}:{dev}' for dev, dir in enumerate(nvme_dir_list)]
ftd_arg = [' '.join(ftd for ftd in ftd_list)]
return {'folder_to_device_mapping': ftd_arg}
def get_sweep_config_dict(sweep_config_json):
if sweep_config_json is None:
return DEFAULT_SWEEP_CONFIG
@ -148,16 +130,6 @@ def get_sweep_cmd_lines(sweep_config_dict):
return cmd_list
def run_job(job):
args = ' '.join(job.cmd())
print(f'args = {args}')
job.open_output_file()
proc = subprocess.run(args=args, shell=True, stdout=job.get_stdout(), stderr=job.get_stderr(), cwd=job.get_cwd())
job.close_output_file()
assert proc.returncode == 0, \
f"This command failed: {job.cmd()}"
def launch_sweep(sweep_jobs, sync_job, flush_cache_job):
for perf_job in sweep_jobs:
if flush_cache_job is not None:
@ -176,7 +148,12 @@ def create_cmd_tags(cmd_line):
if len(fields) == 1:
tags[fields[0]] = None
elif len(fields) == 2:
tags[fields[0]] = fields[1]
if fields[0] == '--folder_to_device_mapping':
tags[fields[0]] = len(fields[1:])
else:
tags[fields[0]] = fields[1]
elif len(fields) > 2:
tags[fields[0]] = len(fields[1:])
return tags
@ -184,16 +161,16 @@ def get_log_file(io_op_desc, cmd_line):
QUEUE_DEPTH = "--queue_depth"
BLOCK_SIZE = "--block_size"
SINGLE_SUBMIT = "--single_submit"
OVERLAP_EVENTS = "--overlap_events"
THREAD_COUNT = "--threads"
SEQUENTIAL_REQUESTS = "--sequential_requests"
FTD_MAP = "--folder_to_device_mapping"
IO_PARALLEL = "--io_parallel"
tag_map = {
QUEUE_DEPTH: "d",
BLOCK_SIZE: "bs",
SINGLE_SUBMIT: "single",
OVERLAP_EVENTS: "overlap",
THREAD_COUNT: "t",
SEQUENTIAL_REQUESTS: "sequential",
FTD_MAP: "ftd",
IO_PARALLEL: "p"
}
@ -201,14 +178,14 @@ def get_log_file(io_op_desc, cmd_line):
QUEUE_DEPTH: 1,
BLOCK_SIZE: "1M",
SINGLE_SUBMIT: "block",
OVERLAP_EVENTS: "sequential",
THREAD_COUNT: 1,
SEQUENTIAL_REQUESTS: "overlap",
FTD_MAP: 1,
IO_PARALLEL: 1
}
def get_default_value(tag):
value = tag_default[tag]
if tag in [SINGLE_SUBMIT, OVERLAP_EVENTS]:
if tag in [SINGLE_SUBMIT, SEQUENTIAL_REQUESTS]:
return value
return f'{tag_map[tag]}{value}'
@ -218,7 +195,7 @@ def get_log_file(io_op_desc, cmd_line):
return tag_key
return f'{tag_key}{value}'
tag_list = [SINGLE_SUBMIT, OVERLAP_EVENTS, THREAD_COUNT, IO_PARALLEL, QUEUE_DEPTH, BLOCK_SIZE]
tag_list = [SINGLE_SUBMIT, SEQUENTIAL_REQUESTS, FTD_MAP, QUEUE_DEPTH, BLOCK_SIZE, IO_PARALLEL]
log_tags = [io_op_desc]
cmd_tags = create_cmd_tags(cmd_line)
for tag in tag_list:
@ -252,40 +229,14 @@ def async_io_setup():
return AsyncIOBuilder().is_compatible()
def get_block_size_and_count(io_bytes):
block_size = 1
block_count = io_bytes
bytes_in_KB = 1024
while block_count % bytes_in_KB == 0:
block_size *= bytes_in_KB
block_count /= bytes_in_KB
return int(block_size), int(block_count)
def create_read_file(sweep_config):
read_folder = os.path.join(sweep_config.nvme_dir, f'{READ_IO_DIR}')
os.makedirs(read_folder, exist_ok=True)
read_file_name = os.path.join(read_folder, f'random_{sweep_config.io_size}B.pt')
block_size, block_count = get_block_size_and_count(refine_integer_value(sweep_config.io_size))
dd_job = Job(cmd_line=[f'dd if=/dev/urandom of={read_file_name} bs={block_size} count={block_count}'])
print(f'[Start] Create read file of {sweep_config.io_size} bytes by running {dd_job.cmd()} ....')
run_job(dd_job)
print(f'[Done] Create read file of {sweep_config.io_size} bytes by running {dd_job.cmd()} ....')
return read_folder, read_file_name
def remove_folder(folder):
assert os.path.isdir(folder), f"Error: cannot remove {folder} - folder not found"
shutil.rmtree(folder)
def run_read_sweep(sweep_config, flush_cache_job, sync_job, cmd_lines):
read_folder, read_file_name = create_read_file(sweep_config)
read_option = f'--read_file {read_file_name}'
read_cmd_lines = [[f'{read_option} {sweep_config.other_options}'] + cmd for cmd in cmd_lines]
#dump_cmd_lines(read_cmd_lines)
read_cmd_lines = [[f'--read {sweep_config.other_options}'] + cmd for cmd in cmd_lines]
#dump_cmd_lines(cmd_lines)
log_folder = os.path.join(sweep_config.log_dir, f'{READ_LOG_DIR}')
os.makedirs(log_folder, exist_ok=True)
@ -294,15 +245,9 @@ def run_read_sweep(sweep_config, flush_cache_job, sync_job, cmd_lines):
launch_sweep(sweep_jobs=perf_jobs, sync_job=sync_job, flush_cache_job=flush_cache_job)
remove_folder(read_folder)
def run_write_sweep(sweep_config, flush_cache_job, sync_job, cmd_lines):
write_folder = os.path.join(sweep_config.nvme_dir, f'{WRITE_IO_DIR}')
os.makedirs(write_folder, exist_ok=True)
write_file_name = os.path.join(write_folder, f'random_{sweep_config.io_size}B.pt')
write_option = f'--write_size {sweep_config.io_size} --write_file {write_file_name}'
write_cmd_lines = [[f'{write_option} {sweep_config.other_options}'] + cmd for cmd in cmd_lines]
write_cmd_lines = [[f'{sweep_config.other_options}'] + cmd for cmd in cmd_lines]
#dump_cmd_lines(write_cmd_lines)
log_folder = os.path.join(sweep_config.log_dir, f'{WRITE_LOG_DIR}')
@ -312,8 +257,6 @@ def run_write_sweep(sweep_config, flush_cache_job, sync_job, cmd_lines):
launch_sweep(sweep_jobs=perf_jobs, sync_job=sync_job, flush_cache_job=flush_cache_job)
remove_folder(write_folder)
def main():
print("Running performance sweep of deepspeed nvme library")

Просмотреть файл

@ -0,0 +1,175 @@
# Copyright (c) Microsoft Corporation.
# SPDX-License-Identifier: Apache-2.0
# DeepSpeed Team
"""
Functionality of swapping optimizer tensors to/from (NVMe) storage devices.
"""
import argparse
import os
from test_ds_aio_utils import refine_integer_value
from deepspeed.accelerator import get_accelerator
MAPPING_DELIMITER = ':'
def refine_args(args):
if args.io_size and type(args.io_size) == str:
args.io_size = refine_integer_value(args.io_size)
if args.block_size and type(args.block_size) == str:
args.block_size = refine_integer_value(args.block_size)
return args
def _get_mapping_dict(args):
if args.folder is not None:
d = {i: args.folder for i in range(args.multi_process)}
else:
d = {}
for m in args.folder_to_device_mapping:
fields = m.split(MAPPING_DELIMITER)
d[fields[1]] = fields[0]
return d
def _validate_folder_mapping(args):
no_error = True
error_messages = []
invalid_mappings = [m for m in args.folder_to_device_mapping if MAPPING_DELIMITER not in m]
if len(invalid_mappings) > 0:
error_messages.append(
f'Missing delimiter ({MAPPING_DELIMITER}) in folder_to_device_mapping {invalid_mappings}')
no_error = False
folder_list = [m.split(MAPPING_DELIMITER)[0] for m in args.folder_to_device_mapping]
invalid_folders = [d for d in folder_list if not os.path.exists(d)]
if len(invalid_folders) > 0:
error_messages.append(f'Invalid folders in folder_to_device_mapping: {invalid_folders}')
no_error = False
if args.gpu:
device_list = [int(m.split(MAPPING_DELIMITER)[1]) for m in args.folder_to_device_mapping]
invalid_device_list = [dev_id for dev_id in device_list if not dev_id < get_accelerator().device_count()]
if len(invalid_device_list) > 0:
error_messages.append(f'Invalid device ids in folder_to_device_mapping: {invalid_device_list}')
no_error = False
return no_error, error_messages
def validate_args(args):
no_error = True
error_messages = []
if args.folder is not None and len(args.folder_to_device_mapping) > 0:
error_messages.append(f'--folder and --folder_to_device_mapping cannot be specified together.')
no_error = False
elif args.folder is None and len(args.folder_to_device_mapping) == 0:
error_messages.append(f'At least one of --folder or --folder_to_device_mapping must be specified.')
no_error = False
# Validate --folder
if args.folder is not None and not os.path.exists(args.folder):
no_error = False
error_messages.append(f'Invalid folder in --folder: {args.folder} ')
# Validate --folder_mapping_to_device
if len(args.folder_to_device_mapping) > 0:
no_mapping_error, mapping_error_messages = _validate_folder_mapping(args)
no_error = no_error and no_mapping_error
error_messages += mapping_error_messages
# Validate --gpu, --use_gds
if args.use_gds and not args.gpu:
error_messages.append(f'--gpu must be set to transfer with --use_gds')
no_error = False
if not no_error:
print(f'Found {len(error_messages)} validation errors')
for i, msg in enumerate(error_messages):
print(f'{i+1}: {msg}')
return no_error
def parse_arguments():
parser = argparse.ArgumentParser()
parser.add_argument('--folder', default=None, type=str, help='Folder to use for I/O.')
parser.add_argument('--folder_to_device_mapping',
default=[],
nargs='+',
help='Specification of mapping of folder to (gpu) device id, (ignored for cpu accesses).'
'Can be specified multiple times for multi-process runs,'
'e.g. --folder_to_device_mapping /mnt/nvme0:0 --folder_to_device_mapping /mnt/nvme1:15 --gpu'
'means access /mnt/nvme0 with gpu 0 and /mnt/nvme1 with gpu 15')
parser.add_argument('--io_size', type=str, default=None, required=True, help='Number of bytes to read or write.')
parser.add_argument('--read', action='store_true', help='Perform read I/O (default is write)')
parser.add_argument('--multi_process',
type=int,
default=1,
help='Number of parallel processes doing I/O (default 1).')
parser.add_argument('--block_size',
type=str,
default='1M',
help='I/O block size. Can use K, M, or G suffix (default 1M for 1 megabytes).')
parser.add_argument('--queue_depth', type=int, default=32, help='I/O queue depth (default 32).')
parser.add_argument('--single_submit',
action='store_true',
help='Submit I/O requests in singles (default is submit queue_depth amount at once.).')
parser.add_argument(
'--sequential_requests',
action='store_true',
help=
'Delay I/O request submission until completion of prior requests (default is overlap I/O submission and completion requests.).'
)
parser.add_argument('--validate', action='store_true', help='Perform validation of I/O transfer in library.')
parser.add_argument('--handle', action='store_true', help='Use AIO handle.')
parser.add_argument('--loops', type=int, default=3, help='Count of operation repetitions')
parser.add_argument('--io_parallel', type=int, default=None, help='Per iop parallelism')
parser.add_argument('--gpu', action='store_true', help='Use GPU memory')
parser.add_argument('--use_gds', action='store_true', help='Enable GDS AIO')
parser.add_argument('--slow_bounce_buffer',
action='store_true',
help='For GPU memory transfers, measure impact of bounce buffer pinning on critical path.')
args = parser.parse_args()
print(f'args = {args}')
return args
def get_validated_args():
args = parse_arguments()
args = refine_args(args)
if not validate_args(args):
quit()
print(f'Successful validation of command line arguments')
peer_tag = 'gpu' if args.gpu else 'process'
args.mapping_dict = _get_mapping_dict(args)
args.mapping_list = [(device_id, folder) for device_id, folder in args.mapping_dict.items()]
assert len(args.mapping_dict) == len(args.mapping_list)
print(f'Configuring {len(args.mapping_list)} {peer_tag} to folder mapping')
for i, (device_id, folder) in enumerate(args.mapping_list):
print(f'[{i}]: {peer_tag} {device_id} <----> {folder}')
return args

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@ -9,10 +9,9 @@ Functionality of swapping optimizer tensors to/from (NVMe) storage devices.
import torch
import os
import time
from deepspeed.ops.aio import AsyncIOBuilder
from multiprocessing import Pool, Barrier
from test_ds_aio_utils import report_results, task_log, task_barrier
from deepspeed.accelerator import get_accelerator
from deepspeed.ops.op_builder import AsyncIOBuilder
def pre_basic(args, tid, read_op):
@ -21,7 +20,7 @@ def pre_basic(args, tid, read_op):
file = args.read_file if read_op else f'{args.write_file}.{tid}'
task_log(tid, f'Allocate tensor of size {num_bytes} bytes')
buffer = get_accelerator().pin_memory(torch.empty(num_bytes, dtype=torch.uint8, device='cpu'))
buffer = torch.empty(num_bytes, dtype=torch.uint8, device='cpu').pin_memory()
task_log(tid, f'{io_string} file {file} of size {num_bytes} bytes from buffer on device {buffer.device}')
ctxt = {}
@ -56,7 +55,7 @@ def main_basic_read(pool_params):
args, tid, ctxt = pool_params
start_time = time.time()
AsyncIOBuilder().load().aio_read(ctxt['buffer'], ctxt['file'], args.block_size, args.queue_depth,
args.single_submit, args.overlap_events, args.validate)
args.single_submit, not args.sequential_requests, args.validate)
end_time = time.time()
ctxt['elapsed_sec'] += end_time - start_time
@ -67,7 +66,7 @@ def main_basic_write(pool_params):
args, tid, ctxt = pool_params
start_time = time.time()
AsyncIOBuilder().load().aio_write(ctxt['buffer'], ctxt['file'], args.block_size, args.queue_depth,
args.single_submit, args.overlap_events, args.validate)
args.single_submit, not args.sequential_requests, args.validate)
end_time = time.time()
ctxt['elapsed_sec'] += end_time - start_time
@ -90,16 +89,17 @@ def get_schedule(args, read_op):
def _aio_handle_tasklet(pool_params):
args, tid, read_op = pool_params
num_processes = len(args.mapping_dict)
# Create schedule
schedule = get_schedule(args, read_op)
task_log(tid, f'schedule = {schedule}')
task_barrier(aio_barrier, args.threads)
task_barrier(aio_barrier, num_processes)
# Run pre task
task_log(tid, f'running pre-task')
ctxt = schedule["pre"]((args, tid))
task_barrier(aio_barrier, args.threads)
task_barrier(aio_barrier, num_processes)
# Run main tasks in a loop
ctxt["main_task_sec"] = 0
@ -107,14 +107,14 @@ def _aio_handle_tasklet(pool_params):
task_log(tid, f'running main task {i}')
start_time = time.time()
ctxt = schedule["main"]((args, tid, ctxt))
task_barrier(aio_barrier, args.threads)
task_barrier(aio_barrier, num_processes)
stop_time = time.time()
ctxt["main_task_sec"] += stop_time - start_time
# Run post task
task_log(tid, f'running post-task')
ctxt = schedule["post"]((args, tid, ctxt))
task_barrier(aio_barrier, args.threads)
task_barrier(aio_barrier, num_processes)
return ctxt["main_task_sec"], ctxt["elapsed_sec"], ctxt["num_bytes"] * args.loops
@ -125,9 +125,10 @@ def _init_tasklet(b):
def aio_basic_multiprocessing(args, read_op):
b = Barrier(args.threads)
pool_params = [(args, p, read_op) for p in range(args.threads)]
with Pool(processes=args.threads, initializer=_init_tasklet, initargs=(b, )) as p:
num_processes = len(args.mapping_dict)
b = Barrier(num_processes)
pool_params = [(args, p, read_op) for p in range(num_processes)]
with Pool(processes=num_processes, initializer=_init_tasklet, initargs=(b, )) as p:
pool_results = p.map(_aio_handle_tasklet, pool_params)
report_results(args, read_op, pool_results)

Просмотреть файл

@ -10,40 +10,56 @@ import torch
import os
import time
from multiprocessing import Pool, Barrier
from test_ds_aio_utils import report_results, task_log, task_barrier
from deepspeed.ops.aio import AsyncIOBuilder
from deepspeed.ops.op_builder import GDSBuilder
from test_ds_aio_utils import report_results, task_log, task_barrier, create_filename, create_file
from deepspeed.accelerator import get_accelerator
from deepspeed.ops.op_builder import AsyncIOBuilder
BUFFER = 'buffer'
BOUNCE_BUFFER = 'bounce_buffer'
def pre_handle(args, tid, read_op):
io_string = "Read" if read_op else "Write"
num_bytes = os.path.getsize(args.read_file) if read_op else args.write_size
file = args.read_file if read_op else f'{args.write_file}.{tid}'
gds = True if args.use_gds else False
device_id, folder = args.mapping_list[tid]
filename = create_filename(folder, args.read, args.io_size, tid)
if args.read and not (os.path.isfile(filename) and os.path.getsize(filename) == args.io_size):
create_file(filename, args.io_size)
task_log(tid, f'Allocate tensor of size {args.io_size} bytes')
bounce_buffer = None
if args.gpu:
device_name = get_accelerator().device_name(device_id)
buffer = torch.randint(high=128, size=(args.io_size, ), dtype=torch.uint8, device=device_name)
if not (args.slow_bounce_buffer or gds):
bounce_buffer = torch.randint(high=128, size=(args.io_size, ), dtype=torch.uint8,
device='cpu').pin_memory()
else:
buffer = torch.randint(high=128, size=(args.io_size, ), dtype=torch.uint8, device='cpu').pin_memory()
task_log(tid,
f'{io_string} file {filename} of size {args.io_size} bytes from buffer on device {buffer.device}',
force=True)
io_parallel = args.io_parallel if args.io_parallel else 1
handle = AsyncIOBuilder().load().aio_handle(args.block_size, args.queue_depth, args.single_submit,
args.overlap_events, io_parallel)
task_log(tid, f'Created deepspeed aio handle')
if args.gpu:
buffer = torch.empty(num_bytes, dtype=torch.uint8, device=get_accelerator().device_name())
if gds:
handle = GDSBuilder().load().gds_handle(args.block_size, args.queue_depth, args.single_submit,
not args.sequential_requests, io_parallel)
handle.pin_device_tensor(buffer)
else:
if args.use_accelerator_pin_memory:
buffer = get_accelerator().pin_memory(torch.empty(num_bytes, dtype=torch.uint8, device='cpu'))
else:
buffer = handle.new_cpu_locked_tensor(num_bytes, torch.empty(0, dtype=torch.uint8))
task_log(tid, f'Allocate tensor of size {num_bytes} bytes')
handle = AsyncIOBuilder().load().aio_handle(args.block_size, args.queue_depth, args.single_submit,
not args.sequential_requests, io_parallel)
task_log(tid, f'created deepspeed aio handle')
ctxt = {}
ctxt['file'] = file
ctxt['num_bytes'] = num_bytes
ctxt['file'] = filename
ctxt['num_bytes'] = args.io_size
ctxt['handle'] = handle
ctxt['buffer'] = buffer
ctxt['gds'] = gds
ctxt[BUFFER] = buffer
ctxt[BOUNCE_BUFFER] = bounce_buffer
ctxt['elapsed_sec'] = 0
task_log(tid, f'{io_string} file {file} of size {num_bytes} bytes from buffer on device {buffer.device}')
return ctxt
@ -61,8 +77,12 @@ def pre_handle_write(pool_params):
def post_handle(pool_params):
_, _, ctxt = pool_params
ctxt["buffer"].detach()
ctxt["buffer"] = None
for buf in [BUFFER, BOUNCE_BUFFER]:
if ctxt[buf] is not None:
if ctxt['gds']:
ctxt['handle'].unpin_device_tensor(ctxt[buf])
ctxt[buf].detach()
ctxt[buf] = None
return ctxt
@ -71,20 +91,31 @@ def main_parallel_read(pool_params):
handle = ctxt['handle']
start_time = time.time()
ret = handle.pread(ctxt['buffer'], ctxt['file'], args.validate, True)
dest_buffer = BOUNCE_BUFFER if ctxt[BOUNCE_BUFFER] is not None else BUFFER
ret = handle.pread(ctxt[dest_buffer], ctxt['file'], args.validate, True)
assert ret != -1
handle.wait()
if dest_buffer == BOUNCE_BUFFER:
ctxt[BUFFER].data.copy_(ctxt[BOUNCE_BUFFER].data)
end_time = time.time()
ctxt['elapsed_sec'] += end_time - start_time
return ctxt
def main_parallel_write(pool_params):
args, tid, ctxt = pool_params
# Avoid overwriting existing files as it could be artificially faster
if os.path.isfile(ctxt['file']):
os.remove(ctxt['file'])
handle = ctxt['handle']
start_time = time.time()
ret = handle.pwrite(ctxt['buffer'], ctxt['file'], args.validate, True)
if ctxt[BOUNCE_BUFFER] is not None:
source_buffer = BOUNCE_BUFFER
ctxt[BOUNCE_BUFFER].data.copy_(ctxt[BUFFER].data)
else:
source_buffer = BUFFER
ret = handle.pwrite(ctxt[source_buffer], ctxt['file'], args.validate, True)
assert ret != -1
handle.wait()
end_time = time.time()
@ -98,8 +129,11 @@ def main_handle_read(pool_parms):
handle = ctxt['handle']
start_time = time.time()
ret = handle.read(ctxt['buffer'], ctxt['file'], args.validate)
dest_buffer = BOUNCE_BUFFER if ctxt[BOUNCE_BUFFER] is not None else BUFFER
ret = handle.read(ctxt[dest_buffer], ctxt['file'], args.validate)
assert ret != -1
if dest_buffer == BOUNCE_BUFFER:
ctxt[BUFFER].data.copy_(ctxt[BOUNCE_BUFFER].data)
end_time = time.time()
ctxt['elapsed_sec'] += end_time - start_time
@ -108,9 +142,18 @@ def main_handle_read(pool_parms):
def main_handle_write(pool_parms):
args, tid, ctxt = pool_parms
# Avoid overwriting existing files as it could be artificially faster
if os.path.isfile(ctxt['file']):
os.remove(ctxt['file'])
handle = ctxt['handle']
start_time = time.time()
ret = handle.write(ctxt['buffer'], ctxt['file'], args.validate)
if ctxt[BOUNCE_BUFFER] is not None:
source_buffer = BOUNCE_BUFFER
ctxt[BOUNCE_BUFFER].data.copy_(ctxt[BUFFER].data)
else:
source_buffer = BUFFER
ret = handle.write(ctxt[source_buffer], ctxt['file'], args.validate)
assert ret != -1
end_time = time.time()
ctxt['elapsed_sec'] += end_time - start_time
@ -123,27 +166,28 @@ def get_schedule(args, read_op):
if read_op:
schedule['pre'] = pre_handle_read
schedule['post'] = post_handle
schedule['main'] = main_parallel_read if args.io_parallel else main_handle_read
schedule['main'] = main_parallel_read
else:
schedule['pre'] = pre_handle_write
schedule['post'] = post_handle
schedule['main'] = main_parallel_write if args.io_parallel else main_handle_write
schedule['main'] = main_parallel_write
return schedule
def _aio_handle_tasklet(pool_params):
args, tid, read_op = pool_params
num_processes = len(args.mapping_dict)
# Create schedule
schedule = get_schedule(args, read_op)
task_log(tid, f'schedule = {schedule}')
task_barrier(aio_barrier, args.threads)
task_barrier(aio_barrier, num_processes)
# Run pre task
task_log(tid, f'running pre-task')
ctxt = schedule["pre"]((args, tid))
task_barrier(aio_barrier, args.threads)
task_barrier(aio_barrier, num_processes)
# Run main tasks in a loop
ctxt["main_task_sec"] = 0
@ -151,14 +195,14 @@ def _aio_handle_tasklet(pool_params):
task_log(tid, f'running main task {i}')
start_time = time.time()
ctxt = schedule["main"]((args, tid, ctxt))
task_barrier(aio_barrier, args.threads)
task_barrier(aio_barrier, num_processes)
stop_time = time.time()
ctxt["main_task_sec"] += stop_time - start_time
# Run post task
task_log(tid, f'running post-task')
ctxt = schedule["post"]((args, tid, ctxt))
task_barrier(aio_barrier, args.threads)
task_barrier(aio_barrier, num_processes)
return ctxt["main_task_sec"], ctxt["elapsed_sec"], ctxt["num_bytes"] * args.loops
@ -169,9 +213,10 @@ def _init_tasklet(b):
def aio_handle_multiprocessing(args, read_op):
b = Barrier(args.threads)
pool_params = [(args, p, read_op) for p in range(args.threads)]
with Pool(processes=args.threads, initializer=_init_tasklet, initargs=(b, )) as p:
num_processes = len(args.mapping_dict)
b = Barrier(num_processes)
pool_params = [(args, p, read_op) for p in range(num_processes)]
with Pool(processes=num_processes, initializer=_init_tasklet, initargs=(b, )) as p:
pool_results = p.map(_aio_handle_tasklet, pool_params)
report_results(args, read_op, pool_results)

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@ -0,0 +1,48 @@
# Copyright (c) Microsoft Corporation.
# SPDX-License-Identifier: Apache-2.0
# DeepSpeed Team
"""
Functionality of swapping tensors to/from (NVMe) storage devices.
"""
import subprocess
class Job(object):
def __init__(self, cmd_line, output_file=None, work_dir=None):
self.cmd_line = cmd_line
self.output_file = output_file
self.work_dir = work_dir
self.output_fd = None
def cmd(self):
return self.cmd_line
def get_stdout(self):
return self.output_fd
def get_stderr(self):
return self.output_fd
def get_cwd(self):
return self.work_dir
def open_output_file(self):
if self.output_file is not None:
self.output_fd = open(self.output_file, 'w')
def close_output_file(self):
if self.output_fd is not None:
self.output_fd.close()
self.output_fd = None
def run_job(job):
args = ' '.join(job.cmd())
print(f'args = {args}')
job.open_output_file()
proc = subprocess.run(args=args, shell=True, stdout=job.get_stdout(), stderr=job.get_stderr(), cwd=job.get_cwd())
job.close_output_file()
assert proc.returncode == 0, \
f"This command failed: {job.cmd()}"

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@ -1,13 +1,22 @@
#!/bin/bash
if [[ $# -ne 2 ]]; then
echo "Usage: $0 <input file> <output log dir>"
if [[ $# -lt 2 ]]; then
echo "Usage: $0 <io_size> <output log dir> <target_gpu>"
exit 1
fi
function prep_folder()
{
folder=$1
if [[ -d ${folder} ]]; then
rm -f ${folder}/*
else
mkdir -p ${folder}
fi
}
function validate_environment()
{
validate_cmd="python ./validate_async_io.py"
validate_cmd="TORCH_EXTENSIONS_DIR=./torch_extentions python3 ./validate_async_io.py"
eval ${validate_cmd}
res=$?
if [[ $res != 0 ]]; then
@ -17,18 +26,27 @@ function validate_environment()
fi
}
function fileExists() {
local file="$1"
if [[ -f "$file" ]]; then
return 0
else
return 1
fi
}
validate_environment
INPUT_FILE=$1
if [[ ! -f ${INPUT_FILE} ]]; then
echo "Input file not found: ${INPUT_FILE}"
exit 1
fi
LOG_DIR=$2/aio_perf_sweep
IO_SIZE=$1
LOG_DIR=./aio_perf_sweep
MAP_DIR=$2/aio
GPU_MEM=$3
USE_GDS=$4
RUN_SCRIPT=./test_ds_aio.py
READ_OPT="--read_file ${INPUT_FILE}"
READ_OPT="--read"
prep_folder ${MAP_DIR}
prep_folder ${LOG_DIR}
if [[ -d ${LOG_DIR} ]]; then
rm -f ${LOG_DIR}/*
@ -36,37 +54,60 @@ else
mkdir -p ${LOG_DIR}
fi
DISABLE_CACHE="sync; sudo bash -c 'echo 1 > /proc/sys/vm/drop_caches' "
SYNC="sync"
if [[ ${GPU_MEM} == "gpu" ]]; then
gpu_opt="--gpu"
else
gpu_opt=""
fi
if [[ ${USE_GDS} == "gds" ]]; then
gds_opt="--use_gds"
else
gds_opt=""
fi
for sub in single block; do
if [[ $sub == "single" ]]; then
sub_opt="--single_submit"
DISABLE_CACHE="sudo sync; sudo bash -c 'echo 1 > /proc/sys/vm/drop_caches' "
SYNC="sudo sync"
for xtype in cpu gpu gds; do
if [[ $xtype == "cpu" ]]; then
gpu_opt=""
gds_opt=""
elif [[ $xtype == "gpu" ]]; then
gpu_opt="--gpu"
gds_opt=""
else
sub_opt=""
gpu_opt="--gpu"
gds_opt="--use_gds"
fi
for ov in overlap sequential; do
if [[ $ov == "overlap" ]]; then
ov_opt="--overlap_events"
for sub in single block; do
if [[ $sub == "single" ]]; then
sub_opt="--single_submit"
else
ov_opt=""
sub_opt=""
fi
for t in 1 2 4 8; do
for p in 1 ; do
for d in 1 2 4 8 16 32; do
for bs in 128K 256K 512K 1M; do
SCHED_OPTS="${sub_opt} ${ov_opt} --handle --threads ${t}"
OPTS="--io_parallel ${p} --queue_depth ${d} --block_size ${bs}"
LOG="${LOG_DIR}/read_${sub}_${ov}_t${t}_p${p}_d${d}_bs${bs}.txt"
cmd="python ${RUN_SCRIPT} ${READ_OPT} ${OPTS} ${SCHED_OPTS} &> ${LOG}"
echo ${DISABLE_CACHE}
echo ${cmd}
echo ${SYNC}
for ov in overlap sequential; do
if [[ $ov == "sequential" ]]; then
ov_opt="--sequential_requests"
else
ov_opt=""
fi
for p in 1 2 4 8; do
for t in 1 2 4 8; do
for d in 8 16 32 64 128; do
for bs in 128K 256K 512K 1M 2M 4M 8M 16M; do
SCHED_OPTS="${sub_opt} ${ov_opt} --handle ${gpu_opt} ${gds_opt} --folder_to_device_mapping /mnt/nvme01:0"
OPTS="--queue_depth ${d} --block_size ${bs} --io_size ${IO_SIZE} --io_parallel ${t}"
LOG="${LOG_DIR}/read_${xtype}_${sub}_${ov}_t${t}_p${p}_d${d}_bs${bs}.txt"
cmd="/usr/bin/time python ${RUN_SCRIPT} ${READ_OPT} ${OPTS} ${SCHED_OPTS} &> ${LOG}"
eval ${DISABLE_CACHE}
eval ${cmd}
eval ${SYNC}
sleep 2
echo ${DISABLE_CACHE}
echo ${cmd}
echo ${SYNC}
eval ${DISABLE_CACHE}
eval ${cmd}
eval ${SYNC}
sleep 2
done
done
done
done

Просмотреть файл

@ -25,25 +25,33 @@ function validate_environment()
validate_environment
if [[ $# -ne 3 ]]; then
echo "Usage: $0 <write size in MB> <write dir ><output log dir>"
exit 1
fi
SIZE="$1M"
WRITE_DIR=$2
LOG_DIR=$3/aio_perf_sweep
OUTPUT_FILE=${WRITE_DIR}/ds_aio_write_${SIZE}B.pt
WRITE_OPT="--write_file ${OUTPUT_FILE} --write_size ${SIZE}"
prep_folder ${WRITE_DIR}
prep_folder ${LOG_DIR}
IO_SIZE=$1
LOG_DIR=$2/aio_perf_sweep
MAP_DIR=$2/aio
GPU_MEM=$3
USE_GDS=$4
RUN_SCRIPT=./test_ds_aio.py
DISABLE_CACHE="sync; sudo bash -c 'echo 1 > /proc/sys/vm/drop_caches' "
OUTPUT_FILE=${MAP_DIR}/ds_aio_write_${SIZE}B.pt
WRITE_OPT=""
prep_folder ${MAP_DIR}
prep_folder ${LOG_DIR}
if [[ ${GPU_MEM} == "gpu" ]]; then
gpu_opt="--gpu"
else
gpu_opt=""
fi
if [[ ${USE_GDS} == "gds" ]]; then
gds_opt="--use_gds"
else
gds_opt=""
fi
DISABLE_CACHE="sync; bash -c 'echo 1 > /proc/sys/vm/drop_caches' "
SYNC="sync"
for sub in single block; do
@ -53,19 +61,19 @@ for sub in single block; do
sub_opt=""
fi
for ov in overlap sequential; do
if [[ $ov == "overlap" ]]; then
ov_opt="--overlap_events"
if [[ $ov == "sequential" ]]; then
ov_opt="--sequential_requests"
else
ov_opt=""
fi
for t in 1 2 4 8; do
for p in 1; do
for d in 1 2 4 8 16 32; do
for bs in 128K 256K 512K 1M; do
SCHED_OPTS="${sub_opt} ${ov_opt} --handle --threads ${t}"
OPTS="--io_parallel ${p} --queue_depth ${d} --block_size ${bs}"
for p in 1 2 4 8; do
for t in 1 2 4 8; do
for d in 32 64 128; do
for bs in 256K 512K 1M; do
SCHED_OPTS="${sub_opt} ${ov_opt} --handle ${gpu_opt} ${gds_opt} --folder ${MAP_DIR}"
OPTS="--queue_depth ${d} --block_size ${bs} --io_size ${IO_SIZE} --multi_process ${p} --io_parallel ${t}"
LOG="${LOG_DIR}/write_${sub}_${ov}_t${t}_p${p}_d${d}_bs${bs}.txt"
cmd="python ${RUN_SCRIPT} ${WRITE_OPT} ${OPTS} ${SCHED_OPTS} &> ${LOG}"
cmd="python ${RUN_SCRIPT} ${OPTS} ${SCHED_OPTS} &> ${LOG}"
echo ${DISABLE_CACHE}
echo ${cmd}
echo ${SYNC}

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@ -6,79 +6,19 @@
Functionality of swapping optimizer tensors to/from (NVMe) storage devices.
"""
import os
import argparse
import multiprocessing as mp
from ds_aio_basic import aio_basic_multiprocessing
from ds_aio_handle import aio_handle_multiprocessing
from test_ds_aio_utils import refine_args
def parse_arguments():
parser = argparse.ArgumentParser()
parser.add_argument('--read_file', type=str, default=None, help='Read file.')
parser.add_argument('--write_file', type=str, default=None, help='Write file.')
parser.add_argument('--write_size', type=str, default=None, help='Number of bytes to write.')
parser.add_argument('--block_size', type=str, default='1M', help='I/O block size.')
parser.add_argument('--queue_depth', type=int, default=32, help='I/O queue depth.')
parser.add_argument('--threads', type=int, default=1, help='Thread parallelism count.')
parser.add_argument('--single_submit',
action='store_true',
help='Submit I/O requests in singles (default is submit queue_depth amount at once.).')
parser.add_argument('--overlap_events',
action='store_true',
help='Overlap I/O submission and completion requests.')
parser.add_argument('--validate', action='store_true', help='Perform validation in library.')
parser.add_argument('--handle', action='store_true', help='Use AIO handle.')
parser.add_argument('--loops', type=int, default=1, help='Count of operation repetitions')
parser.add_argument('--io_parallel', type=int, default=None, help='Per iop parallelism')
parser.add_argument('--gpu', action='store_true', help='Use GPU memory')
parser.add_argument('--use_accelerator_pin_memory',
action='store_true',
help='Obtain pinned (CPU page-locked) tensors from accelerator')
args = parser.parse_args()
print(f'args = {args}')
return args
def validate_args(args):
if args.read_file and not os.path.isfile(args.read_file):
print(f'args validation error: {args.read_file} not found')
return False
return True
from ds_aio_args import get_validated_args
def main():
print(f'Testing deepspeed_aio python frontend')
args = parse_arguments()
refine_args(args)
if not validate_args(args):
quit()
args = get_validated_args()
mp.set_start_method('spawn')
multiprocess_function = aio_handle_multiprocessing if args.handle else aio_basic_multiprocessing
if args.read_file:
multiprocess_function(args, True)
if args.write_file:
multiprocess_function(args, False)
multiprocess_function(args, args.read)
if __name__ == "__main__":

Просмотреть файл

@ -6,12 +6,17 @@
Functionality of swapping optimizer tensors to/from (NVMe) storage devices.
"""
import os
from ds_aio_job import Job, run_job
BYTES_PER_GB = 1024**3
BYTES_PER_MB = 1024**2
BYTES_PER_KB = 1024
LOG_TIDS = [0]
def task_log(tid, msg):
if tid in LOG_TIDS:
def task_log(tid, msg, force=False):
if force or tid in LOG_TIDS:
print(f'tid {tid}: {msg}')
@ -31,16 +36,29 @@ def report_results(args, read_op, pool_results):
total_bytes = sum([num_bytes for _, _, num_bytes in pool_results])
task_latency_sec = max([sec for _, sec, _ in pool_results])
task_speed_GB = total_bytes / task_latency_sec / BYTES_PER_GB
task_speed_GB = 0 if task_latency_sec == 0 else total_bytes / task_latency_sec / BYTES_PER_GB
print(f'Task {io_string} Latency = {task_latency_sec} sec')
print(f'Task {io_string} Speed = {task_speed_GB} GB/sec')
e2e_latency_sec = max([sec for sec, _, _ in pool_results])
e2e_speed_GB = total_bytes / e2e_latency_sec / BYTES_PER_GB
e2e_speed_GB = 0 if e2e_latency_sec == 0 else total_bytes / e2e_latency_sec / BYTES_PER_GB
print(f'E2E {io_string} Latency = {e2e_latency_sec} sec')
print(f'E2E {io_string} Speed = {e2e_speed_GB} GB/sec')
def get_block_size_and_count(io_bytes):
if io_bytes > BYTES_PER_MB and io_bytes % BYTES_PER_MB == 0:
block_size = BYTES_PER_MB
block_size_string = '1M'
else:
assert io_bytes % BYTES_PER_KB == 0
block_size = BYTES_PER_KB
block_size_string = '1K'
block_count = io_bytes / block_size
return block_size_string, int(block_count)
def refine_integer_value(value):
unit_dict = {'K': 1024, 'M': 1024**2, 'G': 1024**3}
@ -50,9 +68,14 @@ def refine_integer_value(value):
return int(value)
def refine_args(args):
if args.write_size and type(args.write_size) == str:
args.write_size = refine_integer_value(args.write_size)
def create_filename(folder, read_op, size, tid):
io_string = "read" if read_op else "write"
return os.path.join(folder, f'_aio_{io_string}_{size}.pt.{tid}')
if args.block_size and type(args.block_size) == str:
args.block_size = refine_integer_value(args.block_size)
def create_file(filename, num_bytes):
block_size, block_count = get_block_size_and_count(num_bytes)
dd_job = Job(cmd_line=[f'dd if=/dev/urandom of={filename} bs={block_size} count={block_count}'])
print(f'[Start] Create {filename} of {num_bytes} bytes by running {dd_job.cmd()} ....')
run_job(dd_job)
print(f'[Done] Create read file of {num_bytes} bytes by running {dd_job.cmd()} ....')

Просмотреть файл

@ -7,3 +7,4 @@ Functionality of swapping optimizer tensors to/from (NVMe) storage devices.
"""
from deepspeed.ops.op_builder import AsyncIOBuilder
assert AsyncIOBuilder().is_compatible()
assert AsyncIOBuilder().load()

Просмотреть файл

@ -0,0 +1,154 @@
// Copyright (c) Microsoft Corporation.
// SPDX-License-Identifier: Apache-2.0
// DeepSpeed Team
/*
Functionality for swapping optimizer tensors to/from (NVMe) storage devices.
*/
#include "deepspeed_gds_op.h"
using namespace std;
// For when there is more than 1 device
static std::map<const int64_t, std::set<void*>> base_ptr_registry;
static void _safe_handle_register(const int fd, CUfileDescr_t& cf_descr, CUfileHandle_t& cf_handle)
{
memset((void*)&cf_descr, 0, sizeof(CUfileDescr_t));
cf_descr.handle.fd = fd;
cf_descr.type = CU_FILE_HANDLE_TYPE_OPAQUE_FD;
CUfileError_t status = cuFileHandleRegister(&cf_handle, &cf_descr);
if (status.err != CU_FILE_SUCCESS) {
std::cerr << "file register error:" << cuFileGetErrorString(status) << std::endl;
close(fd);
exit(EXIT_FAILURE);
}
}
static void* _find_base_ptr(const int64_t device, char* buf_ptr)
{
void* base_ptr = nullptr;
int64_t last = -1;
int64_t ptr_diff;
for (const auto& value : base_ptr_registry[device]) {
ptr_diff = buf_ptr - (char*)value;
if (last == -1 && ptr_diff >= 0) {
last = ptr_diff;
base_ptr = value;
} else if (ptr_diff < last && ptr_diff >= 0) {
last = ptr_diff;
base_ptr = value;
}
}
if (!base_ptr || buf_ptr < base_ptr) {
std::cerr << "BASE PTR ERROR :" << base_ptr << " BUF PTR " << (void*)buf_ptr << std::endl;
for (const auto& value : base_ptr_registry[device]) {
std::cerr << "BASE PTR AVAIL :" << value << std::endl;
}
exit(EXIT_FAILURE);
}
return base_ptr;
}
void gds_op_desc_t::add_buffer_to_registry(const torch::Tensor& buffer)
{
const int64_t device = buffer.get_device();
void* reg_ptr = buffer.data_ptr();
// std::cout << "REG PTR " << reg_ptr << std::endl;
// TODO: add checking to make sure pointer isn't already in set
const auto it = base_ptr_registry.find(device);
if (it == base_ptr_registry.end()) {
std::set<void*> new_ptr_set;
new_ptr_set.insert(reg_ptr);
base_ptr_registry.insert(std::pair<const int64_t, std::set<void*>>(device, new_ptr_set));
} else {
base_ptr_registry[device].insert(reg_ptr);
}
check_cudaruntimecall(cudaSetDevice(device));
CUfileError_t status = cuFileBufRegister(reg_ptr, buffer.nbytes(), 0);
if (status.err != CU_FILE_SUCCESS) {
std::cerr << "buffer register failed:" << cuFileGetErrorString(status) << std::endl;
exit(EXIT_FAILURE);
}
}
void gds_op_desc_t::remove_buffer_from_registry(const torch::Tensor& buffer)
{
const int64_t device = buffer.get_device();
void* reg_ptr = buffer.data_ptr();
// std::cout << "DEREG PTR " << reg_ptr << std::endl;
check_cudaruntimecall(cudaSetDevice(device));
cuFileBufDeregister(reg_ptr);
// Remove from tracked registry
base_ptr_registry[device].erase(reg_ptr);
}
gds_op_desc_t::gds_op_desc_t(const bool read_op,
const torch::Tensor& buffer,
const int fd,
const char* filename,
const long long int file_num_bytes,
const int num_threads,
const bool validate)
: io_op_desc_t(read_op, buffer, fd, filename, file_num_bytes, num_threads, validate)
{
_contiguous_buffer = _buffer.contiguous();
const int64_t device = _buffer.get_device();
check_cudaruntimecall(cudaSetDevice(device));
_base_ptr = _find_base_ptr(device, (char*)_contiguous_buffer.data_ptr());
_safe_handle_register(fd, _cf_descr, _cf_handle);
}
char* gds_op_desc_t::data_ptr() const { return (char*)_contiguous_buffer.data_ptr(); }
void gds_op_desc_t::finish() { cuFileHandleDeregister(_cf_handle); }
void gds_op_desc_t::validate()
{
check_cudaruntimecall(cudaSetDevice(_buffer.get_device()));
const auto cpu_buffer = _buffer.to(torch::kCPU);
validate_aio_operation(
_read_op, _filename.c_str(), (char*)(cpu_buffer.data_ptr()), _file_num_bytes);
}
void gds_op_desc_t::run(const int tid,
std::unique_ptr<aio_context>& aio_ctxt,
deepspeed_aio_config_t* aio_config)
{
assert(tid < _num_threads);
check_cudaruntimecall(cudaSetDevice(_buffer.get_device()));
int64_t buf_offset = data_ptr() + (_num_bytes_per_thread * tid) - (char*)_base_ptr;
const auto file_offset = _num_bytes_per_thread * tid;
if (_read_op) {
auto ret =
cuFileRead(_cf_handle, _base_ptr, _num_bytes_per_thread, file_offset, buf_offset);
if (ret < 0) { _report_error(ret, errno, buf_offset); }
} else {
auto ret =
cuFileWrite(_cf_handle, _base_ptr, _num_bytes_per_thread, file_offset, buf_offset);
if (ret < 0) { _report_error(ret, errno, buf_offset); }
}
}
void gds_op_desc_t::_report_error(const ssize_t return_code,
const int error_num,
const off_t offset)
{
const auto op_string = _read_op ? "read failed with " : "write failed with ";
const auto error_string = IS_CUFILE_ERR(return_code) ? "cuFile error: " : "posix error: ";
const auto error_code = IS_CUFILE_ERR(return_code) ? cuFileGetErrorString(return_code)
: cuFileGetErrorString(error_num);
std::cerr << op_string << error_string << error_code << " return code = " << return_code
<< " filename = " << _filename.c_str() << " num bytes = " << _num_bytes_per_thread
<< " offset = " << offset << std::endl;
exit(EXIT_FAILURE);
}

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@ -0,0 +1,44 @@
// Copyright (c) Microsoft Corporation.
// SPDX-License-Identifier: Apache-2.0
// DeepSpeed Team
#include <cstdlib>
#include <fstream>
#include <memory>
#include <queue>
#include <set>
#include <string>
#include "deepspeed_aio_op_desc.h"
#include "deepspeed_gds_utils.h"
struct gds_op_desc_t : io_op_desc_t {
CUfileDescr_t _cf_descr;
CUfileHandle_t _cf_handle;
void* _base_ptr;
gds_op_desc_t(const bool read_op,
const torch::Tensor& buffer,
const int fd,
const char* filename,
const long long int file_num_bytes,
const int num_threads,
const bool validate);
void run(const int tid,
std::unique_ptr<aio_context>& aio_ctxt,
deepspeed_aio_config_t* aio_config);
char* data_ptr() const;
void validate();
void finish();
void _report_error(const ssize_t return_code, const int error_num, const off_t offset);
static void add_buffer_to_registry(const torch::Tensor& buffer);
static void remove_buffer_from_registry(const torch::Tensor& buffer);
};

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@ -0,0 +1,91 @@
// Copyright (c) Microsoft Corporation.
// SPDX-License-Identifier: Apache-2.0
// DeepSpeed Team
#include <cstring>
// CUDA/cuFile includes
#include <cuda.h>
#include <cuda_runtime.h>
#include "cufile.h"
// Macro for checking cuda errors following a cuda launch or api call
#define cudaCheckError() \
{ \
cudaError_t e = cudaGetLastError(); \
if (e != cudaSuccess) { \
printf("Cuda failure %s:%d: '%s'\n", __FILE__, __LINE__, cudaGetErrorString(e)); \
exit(EXIT_FAILURE); \
} \
}
#define check_cudadrivercall(fn) \
do { \
CUresult res = fn; \
if (res != CUDA_SUCCESS) { \
const char* str = nullptr; \
cuGetErrorName(res, &str); \
std::cerr << "cuda driver api call failed " << #fn << " res : " << res << ", " \
<< __LINE__ << ":" << str << std::endl; \
std::cerr << "EXITING program!!!" << std::endl; \
exit(1); \
} \
} while (0)
#define check_cudaruntimecall(fn) \
do { \
cudaError_t res = fn; \
if (res != cudaSuccess) { \
const char* str = cudaGetErrorName(res); \
std::cerr << "cuda runtime api call failed " << #fn << __LINE__ << ":" << str \
<< std::endl; \
std::cerr << "EXITING program!!!" << std::endl; \
exit(1); \
} \
} while (0)
#define check_cuFileCall(fn, api_msg) \
do { \
CUfileError_t status = fn; \
if (status.err != CU_FILE_SUCCESS) { \
std::cout << api_msg << " failed with error " << CUFILE_ERRSTR(status.err) \
<< std::endl; \
exit(EXIT_FAILURE); \
} \
} while (0)
//
// cuda driver error description
//
static inline const char* GetCuErrorString(CUresult curesult)
{
const char* descp;
if (cuGetErrorName(curesult, &descp) != CUDA_SUCCESS) descp = "unknown cuda error";
return descp;
}
//
// cuFile APIs return both cuFile specific error codes as well as POSIX error codes
// for ease, the below template can be used for getting the error description depending
// on its type.
// POSIX
template <class T,
typename std::enable_if<std::is_integral<T>::value, std::nullptr_t>::type = nullptr>
std::string cuFileGetErrorString(T status)
{
status = std::abs(status);
return IS_CUFILE_ERR(status) ? std::string(CUFILE_ERRSTR(status))
: std::string(std::strerror(status));
}
// CUfileError_t
template <class T,
typename std::enable_if<!std::is_integral<T>::value, std::nullptr_t>::type = nullptr>
std::string cuFileGetErrorString(T status)
{
std::string errStr = cuFileGetErrorString(static_cast<int>(status.err));
if (IS_CUDA_ERR(status)) errStr.append(".").append(GetCuErrorString(status.cu_err));
return errStr;
}

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@ -0,0 +1,114 @@
// Copyright (c) Microsoft Corporation.
// SPDX-License-Identifier: Apache-2.0
// DeepSpeed Team
/*
GPUDirect Storage functionality for swapping optimizer tensors to/from (NVMe) storage devices.
*/
#include "deepspeed_py_gds_handle.h"
#include <cstdlib>
#include "deepspeed_gds_op.h"
using namespace std;
int deepspeed_gds_handle_t::s_cuFile_init = 0;
deepspeed_gds_handle_t::deepspeed_gds_handle_t(const int block_size,
const int queue_depth,
const bool single_submit,
const bool overlap_events,
const int num_threads)
: deepspeed_io_handle_t(block_size, queue_depth, single_submit, overlap_events, num_threads)
{
_init_cuFile(block_size, queue_depth, num_threads);
}
deepspeed_gds_handle_t::~deepspeed_gds_handle_t() { _close_cuFile(); }
void deepspeed_gds_handle_t::_init_cuFile(const int block_size,
const int queue_depth,
const int num_threads)
{
if (deepspeed_gds_handle_t::s_cuFile_init == 0) {
std::string depthStr = std::to_string(queue_depth);
std::string threadsStr = std::to_string(num_threads);
std::string json1 = R"({"execution": {"max_io_queue_depth": )" + depthStr + ", ";
std::string json2 = R"("max_request_parallelism": )" + threadsStr + ", ";
std::string json3 = R"("max_io_threads": )" + threadsStr + ", ";
std::string json4 = R"("parallel_io": true, "min_io_threshold_size_kb": 8192}})";
std::ofstream outFile("local_cufile.json");
if (outFile.is_open()) {
outFile << json1 + json2 + json3 + json4;
outFile.close();
} else {
std::cerr << "Can't open local cufile" << std::endl;
exit(EXIT_FAILURE);
}
// TODO: Address the following issues with this code
// (1) Fix C++14 warning
// (2) Create file in a different location than PWD
// (3) Handle multi-GPU/multi-rank scenarios: should cufile be shared, is per-rank cufile
// safe?
putenv("CUFILE_ENV_PATH_JSON=$PWD/local_cufile.json");
cuFileDriverOpen();
cudaCheckError();
size_t direct_io_size = (size_t)block_size / 1024;
CUfileError_t status = cuFileDriverSetMaxDirectIOSize(direct_io_size);
if (status.err != CU_FILE_SUCCESS) {
std::cerr << "file register error:" << cuFileGetErrorString(status) << std::endl;
exit(EXIT_FAILURE);
}
}
deepspeed_gds_handle_t::s_cuFile_init++;
}
void deepspeed_gds_handle_t::_close_cuFile()
{
deepspeed_gds_handle_t::s_cuFile_init--;
if (deepspeed_gds_handle_t::s_cuFile_init == 0) { cuFileDriverClose(); }
}
torch::Tensor deepspeed_gds_handle_t::new_pinned_device_tensor(const size_t num_elem,
const torch::Tensor& example_tensor)
{
auto options = torch::TensorOptions().dtype(example_tensor.scalar_type()).device(torch::kCUDA);
auto dev_tensor = torch::empty(num_elem, options);
pin_device_tensor(dev_tensor);
return dev_tensor;
}
bool deepspeed_gds_handle_t::free_pinned_device_tensor(torch::Tensor& buffer)
{
unpin_device_tensor(buffer);
return true;
}
bool deepspeed_gds_handle_t::pin_device_tensor(const torch::Tensor& buffer)
{
gds_op_desc_t::add_buffer_to_registry(buffer);
return true;
}
bool deepspeed_gds_handle_t::unpin_device_tensor(const torch::Tensor& buffer)
{
gds_op_desc_t::remove_buffer_from_registry(buffer);
return true;
}
std::shared_ptr<struct io_op_desc_t> deepspeed_gds_handle_t::_create_io_op_desc(
const bool read_op,
const torch::Tensor& buffer,
const int fd,
const char* filename,
const long long int file_num_bytes,
const bool validate)
{
if (buffer.is_cuda()) {
return std::make_shared<gds_op_desc_t>(
read_op, buffer, fd, filename, file_num_bytes, _num_threads, validate);
}
return deepspeed_io_handle_t::_create_io_op_desc(
read_op, buffer, fd, filename, file_num_bytes, validate);
}

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@ -0,0 +1,44 @@
// Copyright (c) Microsoft Corporation.
// SPDX-License-Identifier: Apache-2.0
// DeepSpeed Team
/*
Functionality for swapping optimizer tensors to/from (NVMe) storage devices.
*/
#include <condition_variable>
#include <memory>
#include "deepspeed_py_io_handle.h"
struct deepspeed_gds_handle_t : deepspeed_io_handle_t {
deepspeed_gds_handle_t(const int block_size,
const int queue_depth,
const bool single_submit,
const bool overlap_events,
const int num_threads);
~deepspeed_gds_handle_t();
torch::Tensor new_pinned_device_tensor(const size_t num_elem,
const torch::Tensor& example_tensor);
bool free_pinned_device_tensor(torch::Tensor&);
bool pin_device_tensor(const torch::Tensor& buffer);
bool unpin_device_tensor(const torch::Tensor& buffer);
void _init_cuFile(const int block_size, const int queue_length, const int num_threads);
void _close_cuFile();
std::shared_ptr<struct io_op_desc_t> _create_io_op_desc(const bool read_op,
const torch::Tensor& buffer,
const int fd,
const char* filename,
const long long int file_num_bytes,
const bool validate);
static int s_cuFile_init;
};

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@ -0,0 +1,122 @@
// Copyright (c) Microsoft Corporation.
// SPDX-License-Identifier: Apache-2.0
// DeepSpeed Team
/*
Functionality for swapping optimizer tensors to/from (NVMe) storage devices.
*/
#include <torch/extension.h>
#include "deepspeed_py_gds_handle.h"
using namespace pybind11::literals;
PYBIND11_MODULE(TORCH_EXTENSION_NAME, m)
{
py::class_<deepspeed_gds_handle_t>(m, "gds_handle")
.def(py::init<const int, const int, const bool, const bool, const int>(),
"GDS handle constructor",
"block_size"_a = 1024 * 1024,
"queue_depth"_a = 128,
"single_submit"_a = false,
"overlap_events"_a = false,
"num_threads"_a = 1)
.def("get_block_size", &deepspeed_gds_handle_t::get_block_size)
.def("get_queue_depth", &deepspeed_gds_handle_t::get_queue_depth)
.def("get_single_submit", &deepspeed_gds_handle_t::get_single_submit)
.def("get_overlap_events", &deepspeed_gds_handle_t::get_overlap_events)
.def("get_thread_count", &deepspeed_gds_handle_t::get_thread_count)
.def("read",
&deepspeed_gds_handle_t::read,
"Synchronous and non-parallel file read. Returns count of completed read ops",
"buffer"_a,
"filename"_a,
"validate"_a)
.def("write",
&deepspeed_gds_handle_t::write,
"Synchronous and non-parallel file write. Returns count of completed write ops",
"buffer"_a,
"filename"_a,
"validate"_a)
.def("pread",
&deepspeed_gds_handle_t::pread,
"Parallel file read with option of parallelism. Returns count of completed read ops",
"buffer"_a,
"filename"_a,
"validate"_a,
"async"_a)
.def("pwrite",
&deepspeed_gds_handle_t::pwrite,
"Parallel file write with option of parallelism. Returns count of completed write ops",
"buffer"_a,
"filename"_a,
"validate"_a,
"async"_a)
.def("sync_pread",
&deepspeed_gds_handle_t::sync_pread,
"Synchrononous parallel file read. Returns count of completed read ops",
"buffer"_a,
"filename"_a)
.def("sync_pwrite",
&deepspeed_gds_handle_t::sync_pwrite,
"Synchronous parallel file write. Returns count of completed write ops",
"buffer"_a,
"filename"_a)
.def("async_pread",
&deepspeed_gds_handle_t::async_pread,
"Asynchronous parallel file read. Returns 0 on success. Returns 0 on success, and "
"following wait() returns count of completed ops.",
"buffer"_a,
"filename"_a)
.def("async_pwrite",
&deepspeed_gds_handle_t::async_pwrite,
"Asynchronous parallel file write. Returns 0 on success, and following wait() returns "
"count of completed ops.",
"buffer"_a,
"filename"_a)
.def("new_cpu_locked_tensor",
&deepspeed_gds_handle_t::new_cpu_locked_tensor,
"Allocate pinned CPU tensor.",
"num_elem"_a,
"example_tenosr"_a)
.def("free_cpu_locked_tensor",
&deepspeed_gds_handle_t::free_cpu_locked_tensor,
"Free pinned CPU tensor.",
"tensor"_a)
.def("new_pinned_device_tensor",
&deepspeed_gds_handle_t::new_pinned_device_tensor,
"Allocate pinned device tensor.",
"num_elem"_a,
"example_tenosr"_a)
.def("free_pinned_device_tensor",
&deepspeed_gds_handle_t::free_pinned_device_tensor,
"Free pinned device tensor.",
"tensor"_a)
.def("pin_device_tensor",
&deepspeed_gds_handle_t::pin_device_tensor,
"Pin device tensor.",
"tensor"_a)
.def("unpin_device_tensor",
&deepspeed_gds_handle_t::unpin_device_tensor,
"Unpin device tensor.",
"tensor"_a)
.def("wait",
&deepspeed_gds_handle_t::wait,
"Wait for (ongoing) asynchronous operations to complete");
}

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@ -0,0 +1,10 @@
# Copyright (c) Microsoft Corporation.
# SPDX-License-Identifier: Apache-2.0
# DeepSpeed Team
"""
Functionality of swapping optimizer tensors to/from (NVMe) storage devices.
"""
from deepspeed.ops.op_builder import GDSBuilder
assert GDSBuilder().is_compatible(True)
assert GDSBuilder().load(True)

6
deepspeed/ops/gds/__init__.py Executable file
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@ -0,0 +1,6 @@
# Copyright (c) Microsoft Corporation.
# SPDX-License-Identifier: Apache-2.0
# DeepSpeed Team
from ..op_builder import GDSBuilder

Просмотреть файл

@ -5,25 +5,33 @@
from deepspeed.runtime.config_utils import get_scalar_param
from deepspeed.runtime.swap_tensor.constants import *
from deepspeed.accelerator import get_accelerator
AIO_DEFAULT_DICT = {
AIO_BLOCK_SIZE: AIO_BLOCK_SIZE_DEFAULT,
AIO_QUEUE_DEPTH: AIO_QUEUE_DEPTH_DEFAULT,
AIO_THREAD_COUNT: AIO_THREAD_COUNT_DEFAULT,
AIO_SINGLE_SUBMIT: AIO_SINGLE_SUBMIT_DEFAULT,
AIO_OVERLAP_EVENTS: AIO_OVERLAP_EVENTS_DEFAULT
AIO_OVERLAP_EVENTS: AIO_OVERLAP_EVENTS_DEFAULT,
AIO_USE_GDS: AIO_USE_GDS_DEFAULT
}
def get_aio_config(param_dict):
if AIO in param_dict.keys() and param_dict[AIO] is not None:
aio_dict = param_dict[AIO]
return {
aio_config = {
AIO_BLOCK_SIZE: get_scalar_param(aio_dict, AIO_BLOCK_SIZE, AIO_BLOCK_SIZE_DEFAULT),
AIO_QUEUE_DEPTH: get_scalar_param(aio_dict, AIO_QUEUE_DEPTH, AIO_QUEUE_DEPTH_DEFAULT),
AIO_THREAD_COUNT: get_scalar_param(aio_dict, AIO_THREAD_COUNT, AIO_THREAD_COUNT_DEFAULT),
AIO_SINGLE_SUBMIT: get_scalar_param(aio_dict, AIO_SINGLE_SUBMIT, AIO_SINGLE_SUBMIT_DEFAULT),
AIO_OVERLAP_EVENTS: get_scalar_param(aio_dict, AIO_OVERLAP_EVENTS, AIO_OVERLAP_EVENTS_DEFAULT)
AIO_OVERLAP_EVENTS: get_scalar_param(aio_dict, AIO_OVERLAP_EVENTS, AIO_OVERLAP_EVENTS_DEFAULT),
AIO_USE_GDS: get_scalar_param(aio_dict, AIO_USE_GDS, AIO_USE_GDS_DEFAULT)
}
if aio_config[AIO_USE_GDS]:
assert get_accelerator().device_name() == 'cuda', 'GDS currently only supported for CUDA accelerator'
return aio_config
return AIO_DEFAULT_DICT

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@ -11,7 +11,8 @@ AIO_FORMAT = '''
"queue_depth": 8,
"thread_count": 1,
"single_submit": false,
"overlap_events": true
"overlap_events": true,
"use_gds": false
}
'''
AIO = "aio"
@ -25,3 +26,5 @@ AIO_SINGLE_SUBMIT = "single_submit"
AIO_SINGLE_SUBMIT_DEFAULT = False
AIO_OVERLAP_EVENTS = "overlap_events"
AIO_OVERLAP_EVENTS_DEFAULT = True
AIO_USE_GDS = "use_gds"
AIO_USE_GDS_DEFAULT = False

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@ -13,6 +13,7 @@ import torch
from deepspeed import comm as dist
from deepspeed.accelerator import get_accelerator
from deepspeed.ops.op_builder import AsyncIOBuilder
from deepspeed.ops.op_builder import GDSBuilder
from .constants import *
from .utils import swap_in_tensors, swap_out_tensors, MIN_AIO_BYTES, AIO_ALIGNED_BYTES, print_object, SwapBufferPool
@ -37,8 +38,6 @@ class AsyncPartitionedParameterSwapper(object):
def __init__(self, ds_config, model_dtype):
aio_op = AsyncIOBuilder().load(verbose=False)
self.aio_handle = aio_op.aio_handle
self.dtype = model_dtype
#set swap buffers, create aio handles
@ -93,6 +92,10 @@ class AsyncPartitionedParameterSwapper(object):
self.aio_config = ds_config.aio_config
self.use_gds = self.aio_config[AIO_USE_GDS]
self.aio_handle = GDSBuilder().load(verbose=False).gds_handle if self.use_gds else AsyncIOBuilder().load(
verbose=False).aio_handle
# Read/Write alignment for each thread during Intra-request parallelism
self.min_aio_bytes = max(MIN_AIO_BYTES, self.aio_config[AIO_BLOCK_SIZE])
self.aligned_bytes = AIO_ALIGNED_BYTES * self.aio_config[AIO_THREAD_COUNT]
@ -104,11 +107,6 @@ class AsyncPartitionedParameterSwapper(object):
self.available_buffer_ids = [i for i in range(self.param_buffer_count)]
self.reserved_buffer_ids = []
self.buffers = get_accelerator().pin_memory(torch.empty(int(self.aligned_elements_per_buffer *
self.param_buffer_count),
dtype=self.dtype,
requires_grad=False),
align_bytes=0)
self.aio_read_handle = self.aio_handle(self.aio_config[AIO_BLOCK_SIZE], self.aio_config[AIO_QUEUE_DEPTH],
self.aio_config[AIO_SINGLE_SUBMIT], self.aio_config[AIO_OVERLAP_EVENTS],
@ -118,6 +116,19 @@ class AsyncPartitionedParameterSwapper(object):
self.aio_config[AIO_SINGLE_SUBMIT],
self.aio_config[AIO_OVERLAP_EVENTS], self.aio_config[AIO_THREAD_COUNT])
if self.use_gds:
self.buffers = torch.empty(int(self.aligned_elements_per_buffer * self.param_buffer_count),
dtype=self.dtype,
device=get_accelerator().device_name(),
requires_grad=False)
self.aio_read_handle.new_device_locked_tensor(self.buffers)
else:
self.buffers = get_accelerator().pin_memory(torch.empty(int(self.aligned_elements_per_buffer *
self.param_buffer_count),
dtype=self.dtype,
requires_grad=False),
align_bytes=0)
self.swap_out_params = []
#Check if partitioned param or numel in a tensor is swappable or not

Просмотреть файл

@ -3,13 +3,14 @@
# DeepSpeed Team
import os
import distutils.spawn
import subprocess
from .builder import OpBuilder
from .builder import TorchCPUOpBuilder
class AsyncIOBuilder(OpBuilder):
class AsyncIOBuilder(TorchCPUOpBuilder):
BUILD_VAR = "DS_BUILD_AIO"
NAME = "async_io"
@ -19,44 +20,54 @@ class AsyncIOBuilder(OpBuilder):
def absolute_name(self):
return f'deepspeed.ops.aio.{self.NAME}_op'
def sources(self):
return [
'csrc/aio/py_lib/deepspeed_py_copy.cpp', 'csrc/aio/py_lib/py_ds_aio.cpp',
'csrc/aio/py_lib/deepspeed_py_aio.cpp', 'csrc/aio/py_lib/deepspeed_py_aio_handle.cpp',
'csrc/aio/py_lib/deepspeed_aio_thread.cpp', 'csrc/aio/common/deepspeed_aio_utils.cpp',
'csrc/aio/common/deepspeed_aio_common.cpp', 'csrc/aio/common/deepspeed_aio_types.cpp',
def lib_sources(self):
src_list = [
'csrc/aio/py_lib/deepspeed_py_io_handle.cpp', 'csrc/aio/py_lib/deepspeed_py_aio.cpp',
'csrc/aio/py_lib/deepspeed_py_aio_handle.cpp', 'csrc/aio/py_lib/deepspeed_aio_thread.cpp',
'csrc/aio/common/deepspeed_aio_utils.cpp', 'csrc/aio/common/deepspeed_aio_common.cpp',
'csrc/aio/common/deepspeed_aio_types.cpp', 'csrc/aio/py_lib/deepspeed_cpu_op.cpp',
'csrc/aio/py_lib/deepspeed_aio_op_desc.cpp', 'csrc/aio/py_lib/deepspeed_py_copy.cpp',
'csrc/aio/py_lib/deepspeed_pin_tensor.cpp'
]
return src_list
def sources(self):
return self.lib_sources() + ['csrc/aio/py_lib/py_ds_aio.cpp']
def include_paths(self):
return ['csrc/aio/py_lib', 'csrc/aio/common']
import torch
if self.build_for_cpu:
CUDA_INCLUDE = []
elif not self.is_rocm_pytorch():
CUDA_INCLUDE = [os.path.join(torch.utils.cpp_extension.CUDA_HOME, "include")]
else:
CUDA_INCLUDE = [
os.path.join(torch.utils.cpp_extension.ROCM_HOME, "include"),
os.path.join(torch.utils.cpp_extension.ROCM_HOME, "include", "rocrand"),
os.path.join(torch.utils.cpp_extension.ROCM_HOME, "include", "hiprand"),
]
return ['csrc/aio/py_lib', 'csrc/aio/common'] + CUDA_INCLUDE
def cxx_args(self):
# -O0 for improved debugging, since performance is bound by I/O
CPU_ARCH = self.cpu_arch()
SIMD_WIDTH = self.simd_width()
import torch # Keep this import here to avoid errors when building DeepSpeed wheel without torch installed
args = super().cxx_args()
import torch
TORCH_MAJOR, TORCH_MINOR = map(int, torch.__version__.split('.')[0:2])
if TORCH_MAJOR >= 2 and TORCH_MINOR >= 1:
CPP_STD = '-std=c++17'
else:
CPP_STD = '-std=c++14'
return [
'-g',
'-Wall',
'-O0',
CPP_STD,
'-shared',
'-fPIC',
'-Wno-reorder',
CPU_ARCH,
'-fopenmp',
SIMD_WIDTH,
'-laio',
]
if not (TORCH_MAJOR >= 2 and TORCH_MINOR >= 1):
args.remove('-std=c++17')
args.append('-std=c++14')
args += ['-Wall', '-O0', '-shared', '-fPIC', '-Wno-reorder']
return args
def extra_ldflags(self):
return ['-laio']
if self.build_for_cpu:
return ['-fopenmp']
import torch.utils.cpp_extension
CUDA_HOME = torch.utils.cpp_extension.CUDA_HOME
CUDA_LIB64 = os.path.join(CUDA_HOME, "lib64")
ldflags = [f'-L{CUDA_HOME}', f'-L{CUDA_LIB64}', '-laio', '-lcuda', '-lcudart']
return ldflags
def check_for_libaio_pkg(self):
libs = dict(
@ -79,13 +90,13 @@ class AsyncIOBuilder(OpBuilder):
break
return found
def is_compatible(self, verbose=True):
def is_compatible(self, verbose=False):
# Check for the existence of libaio by using distutils
# to compile and link a test program that calls io_submit,
# which is a function provided by libaio that is used in the async_io op.
# If needed, one can define -I and -L entries in CFLAGS and LDFLAGS
# respectively to specify the directories for libaio.h and libaio.so.
aio_compatible = self.has_function('io_pgetevents', ('aio', ))
aio_compatible = self.has_function('io_submit', ('aio', ))
if verbose and not aio_compatible:
self.warning(f"{self.NAME} requires the dev libaio .so object and headers but these were not found.")

Просмотреть файл

@ -305,7 +305,7 @@ class OpBuilder(ABC):
def extra_ldflags(self):
return []
def has_function(self, funcname, libraries, verbose=False):
def has_function(self, funcname, libraries, library_dirs=None, verbose=False):
'''
Test for existence of a function within a tuple of libraries.
@ -361,7 +361,8 @@ class OpBuilder(ABC):
compiler.link_executable(objs,
os.path.join(tempdir, 'a.out'),
extra_preargs=self.strip_empty_entries(ldflags),
libraries=libraries)
libraries=libraries,
library_dirs=library_dirs)
# Compile and link succeeded
return True

50
op_builder/gds.py Normal file
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@ -0,0 +1,50 @@
# Copyright (c) Microsoft Corporation.
# SPDX-License-Identifier: Apache-2.0
# DeepSpeed Team
import os
from .async_io import AsyncIOBuilder
class GDSBuilder(AsyncIOBuilder):
BUILD_VAR = "DS_BUILD_GDS"
NAME = "gds"
def __init__(self):
super().__init__()
def absolute_name(self):
return f'deepspeed.ops.gds.{self.NAME}_op'
def lib_sources(self):
src_list = ['csrc/gds/py_lib/deepspeed_py_gds_handle.cpp', 'csrc/gds/py_lib/deepspeed_gds_op.cpp']
return super().lib_sources() + src_list
def sources(self):
return self.lib_sources() + ['csrc/gds/py_lib/py_ds_gds.cpp']
def cxx_args(self):
return super().cxx_args() + ['-lcufile']
def include_paths(self):
import torch
CUDA_INCLUDE = [os.path.join(torch.utils.cpp_extension.CUDA_HOME, "include")]
return ['csrc/aio/py_lib', 'csrc/aio/common'] + CUDA_INCLUDE
def extra_ldflags(self):
return super().extra_ldflags() + ['-lcufile']
def is_compatible(self, verbose=False):
import torch.utils.cpp_extension
CUDA_HOME = torch.utils.cpp_extension.CUDA_HOME
CUDA_LIB64 = os.path.join(CUDA_HOME, "lib64")
gds_compatible = self.has_function(funcname="cuFileDriverOpen",
libraries=("cufile", ),
library_dirs=(
CUDA_HOME,
CUDA_LIB64,
),
verbose=verbose)
return gds_compatible and super().is_compatible(verbose)

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@ -78,7 +78,7 @@ def _validate_handle_state(handle, single_submit, overlap_events):
assert handle.get_queue_depth() == QUEUE_DEPTH
@pytest.mark.parametrize("use_cuda_pinned_tensor", [True, False])
@pytest.mark.parametrize("use_cuda_pinned_tensor", [True]) # TODO: aio_handle pinned tensor API is broken
@pytest.mark.parametrize("single_submit", [True, False])
@pytest.mark.parametrize("overlap_events", [True, False])
class TestRead(DistributedTest):
@ -144,7 +144,7 @@ class TestRead(DistributedTest):
h.free_cpu_locked_tensor(aio_buffer)
@pytest.mark.parametrize("use_cuda_pinned_tensor", [True, False])
@pytest.mark.parametrize("use_cuda_pinned_tensor", [True]) # TODO: aio_handle pinned tensor API is broken
@pytest.mark.parametrize("single_submit", [True, False])
@pytest.mark.parametrize("overlap_events", [True, False])
class TestWrite(DistributedTest):
@ -213,7 +213,7 @@ class TestWrite(DistributedTest):
@pytest.mark.sequential
@pytest.mark.parametrize("use_cuda_pinned_tensor", [True, False])
@pytest.mark.parametrize("use_cuda_pinned_tensor", [True]) # TODO: aio_handle pinned tensor API is broken
@pytest.mark.parametrize("cuda_device", [True, False])
class TestAsyncQueue(DistributedTest):
world_size = 1

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@ -0,0 +1,270 @@
# Copyright (c) Microsoft Corporation.
# SPDX-License-Identifier: Apache-2.0
# DeepSpeed Team
import pytest
import os
import filecmp
import torch
import deepspeed
import deepspeed.comm as dist
from deepspeed.accelerator import get_accelerator
from deepspeed.ops.op_builder import GDSBuilder
from unit.common import DistributedTest
KILO_BYTE = 1024 * 256
BLOCK_SIZE = KILO_BYTE
QUEUE_DEPTH = 2
IO_SIZE = 4 * BLOCK_SIZE
IO_PARALLEL = 2
if not deepspeed.ops.__compatible_ops__[GDSBuilder.NAME]:
pytest.skip('Skip tests since gds is not compatible', allow_module_level=True)
def _get_local_rank():
if get_accelerator().is_available():
return dist.get_rank()
return 0
def _do_ref_write(tmpdir, index=0):
file_suffix = f'{_get_local_rank()}_{index}'
ref_file = os.path.join(tmpdir, f'_py_random_{file_suffix}.pt')
ref_buffer = os.urandom(IO_SIZE)
with open(ref_file, 'wb') as f:
f.write(ref_buffer)
return ref_file, ref_buffer
def _get_test_write_file(tmpdir, index):
file_suffix = f'{_get_local_rank()}_{index}'
return os.path.join(tmpdir, f'_gds_write_random_{file_suffix}.pt')
def _get_test_write_file_and_device_buffer(tmpdir, ref_buffer, gds_handle, index=0):
test_file = _get_test_write_file(tmpdir, index)
test_buffer = get_accelerator().ByteTensor(list(ref_buffer))
gds_handle.pin_device_tensor(test_buffer)
return test_file, test_buffer
def _validate_handle_state(handle, single_submit, overlap_events):
assert handle.get_single_submit() == single_submit
assert handle.get_overlap_events() == overlap_events
assert handle.get_thread_count() == IO_PARALLEL
assert handle.get_block_size() == BLOCK_SIZE
assert handle.get_queue_depth() == QUEUE_DEPTH
@pytest.mark.parametrize("single_submit", [True, False])
@pytest.mark.parametrize("overlap_events", [True, False])
class TestRead(DistributedTest):
world_size = 1
reuse_dist_env = True
if not get_accelerator().is_available():
init_distributed = False
set_dist_env = False
def test_parallel_read(self, tmpdir, single_submit, overlap_events):
h = GDSBuilder().load().gds_handle(BLOCK_SIZE, QUEUE_DEPTH, single_submit, overlap_events, IO_PARALLEL)
gds_buffer = torch.empty(IO_SIZE, dtype=torch.uint8, device=get_accelerator().device_name())
h.pin_device_tensor(gds_buffer)
_validate_handle_state(h, single_submit, overlap_events)
ref_file, _ = _do_ref_write(tmpdir)
read_status = h.sync_pread(gds_buffer, ref_file)
assert read_status == 1
with open(ref_file, 'rb') as f:
ref_buffer = list(f.read())
assert ref_buffer == gds_buffer.tolist()
h.unpin_device_tensor(gds_buffer)
def test_async_read(self, tmpdir, single_submit, overlap_events):
h = GDSBuilder().load().gds_handle(BLOCK_SIZE, QUEUE_DEPTH, single_submit, overlap_events, IO_PARALLEL)
gds_buffer = torch.empty(IO_SIZE, dtype=torch.uint8, device=get_accelerator().device_name())
h.pin_device_tensor(gds_buffer)
_validate_handle_state(h, single_submit, overlap_events)
ref_file, _ = _do_ref_write(tmpdir)
read_status = h.async_pread(gds_buffer, ref_file)
assert read_status == 0
wait_status = h.wait()
assert wait_status == 1
with open(ref_file, 'rb') as f:
ref_buffer = list(f.read())
assert ref_buffer == gds_buffer.tolist()
h.unpin_device_tensor(gds_buffer)
@pytest.mark.parametrize("single_submit", [True, False])
@pytest.mark.parametrize("overlap_events", [True, False])
class TestWrite(DistributedTest):
world_size = 1
reuse_dist_env = True
if not get_accelerator().is_available():
init_distributed = False
set_dist_env = False
def test_parallel_write(self, tmpdir, single_submit, overlap_events):
ref_file, ref_buffer = _do_ref_write(tmpdir)
h = GDSBuilder().load().gds_handle(BLOCK_SIZE, QUEUE_DEPTH, single_submit, overlap_events, IO_PARALLEL)
gds_file, gds_buffer = _get_test_write_file_and_device_buffer(tmpdir, ref_buffer, h)
_validate_handle_state(h, single_submit, overlap_events)
write_status = h.sync_pwrite(gds_buffer, gds_file)
assert write_status == 1
h.unpin_device_tensor(gds_buffer)
assert os.path.isfile(gds_file)
filecmp.clear_cache()
assert filecmp.cmp(ref_file, gds_file, shallow=False)
def test_async_write(self, tmpdir, single_submit, overlap_events):
ref_file, ref_buffer = _do_ref_write(tmpdir)
h = GDSBuilder().load().gds_handle(BLOCK_SIZE, QUEUE_DEPTH, single_submit, overlap_events, IO_PARALLEL)
gds_file, gds_buffer = _get_test_write_file_and_device_buffer(tmpdir, ref_buffer, h)
_validate_handle_state(h, single_submit, overlap_events)
write_status = h.async_pwrite(gds_buffer, gds_file)
assert write_status == 0
wait_status = h.wait()
assert wait_status == 1
h.unpin_device_tensor(gds_buffer)
assert os.path.isfile(gds_file)
filecmp.clear_cache()
assert filecmp.cmp(ref_file, gds_file, shallow=False)
@pytest.mark.sequential
class TestAsyncQueue(DistributedTest):
world_size = 1
if not get_accelerator().is_available():
init_distributed = False
set_dist_env = False
@pytest.mark.parametrize("async_queue", [2, 3])
def test_read(self, tmpdir, async_queue):
ref_files = []
for i in range(async_queue):
f, _ = _do_ref_write(tmpdir, i)
ref_files.append(f)
single_submit = True
overlap_events = True
h = GDSBuilder().load().gds_handle(BLOCK_SIZE, QUEUE_DEPTH, single_submit, overlap_events, IO_PARALLEL)
gds_buffers = [
torch.empty(IO_SIZE, dtype=torch.uint8, device=get_accelerator().device_name()) for _ in range(async_queue)
]
for buf in gds_buffers:
h.pin_device_tensor(buf)
_validate_handle_state(h, single_submit, overlap_events)
for i in range(async_queue):
read_status = h.async_pread(gds_buffers[i], ref_files[i])
assert read_status == 0
wait_status = h.wait()
assert wait_status == async_queue
for i in range(async_queue):
with open(ref_files[i], 'rb') as f:
ref_buffer = list(f.read())
assert ref_buffer == gds_buffers[i].tolist()
for t in gds_buffers:
h.unpin_device_tensor(t)
@pytest.mark.parametrize("async_queue", [2, 3])
def test_write(self, tmpdir, async_queue):
ref_files = []
ref_buffers = []
for i in range(async_queue):
f, buf = _do_ref_write(tmpdir, i)
ref_files.append(f)
ref_buffers.append(buf)
single_submit = True
overlap_events = True
h = GDSBuilder().load().gds_handle(BLOCK_SIZE, QUEUE_DEPTH, single_submit, overlap_events, IO_PARALLEL)
gds_files = []
gds_buffers = []
for i in range(async_queue):
f, buf = _get_test_write_file_and_device_buffer(tmpdir, ref_buffers[i], h, i)
gds_files.append(f)
gds_buffers.append(buf)
_validate_handle_state(h, single_submit, overlap_events)
for i in range(async_queue):
read_status = h.async_pwrite(gds_buffers[i], gds_files[i])
assert read_status == 0
wait_status = h.wait()
assert wait_status == async_queue
for t in gds_buffers:
h.unpin_device_tensor(t)
for i in range(async_queue):
assert os.path.isfile(gds_files[i])
filecmp.clear_cache()
assert filecmp.cmp(ref_files[i], gds_files[i], shallow=False)
@pytest.mark.parametrize("use_new_api", [True, False])
class TestLockDeviceTensor(DistributedTest):
world_size = 2
reuse_dist_env = True
if not get_accelerator().is_available():
init_distributed = False
set_dist_env = False
def test_pin_device_tensor(self, use_new_api):
h = GDSBuilder().load().gds_handle(BLOCK_SIZE, QUEUE_DEPTH, True, True, IO_PARALLEL)
unpinned_buffer = torch.empty(IO_SIZE, dtype=torch.uint8, device=get_accelerator().device_name())
if use_new_api:
pinned_buffer = h.new_pinned_device_tensor(unpinned_buffer.numel(), unpinned_buffer)
else:
pinned_buffer = torch.empty_like(unpinned_buffer)
h.pin_device_tensor(pinned_buffer)
assert unpinned_buffer.device == pinned_buffer.device
assert unpinned_buffer.dtype == pinned_buffer.dtype
assert unpinned_buffer.numel() == pinned_buffer.numel()
if use_new_api:
h.free_pinned_device_tensor(pinned_buffer)
else:
h.unpin_device_tensor(pinned_buffer)