makefile cleaning: now it supports -j while the old version has bugs in dependencies

src/Makefile

@@ -1,32 +1,35 @@
-#
-# The following defines a variable named "NAME" with a value of "myprogram". By convention,
-# a lowercase prefix (in this case "program") and an uppercased suffix (in this case "NAME"), separated
-# by an underscore is used to name attributes for a common element. Think of this like
-# using program.NAME, program.C_SRCS, etc. There are no structs in Make, so we use this convention
-# to keep track of attributes that all belong to the same target or program.
-#
+# The makefile for caffe. Extremely hack.
 PROJECT := caffe
+TEST_GPUID := 1
+
+# The target static library and shared library name
 NAME := lib$(PROJECT).so
-TEST_NAME := test_$(PROJECT)
+STATIC_NAME := lib$(PROJECT).a
+# All source files
 CXX_SRCS := $(shell find caffe ! -name "test_*.cpp" -name "*.cpp")
 CU_SRCS := $(shell find caffe -name "*.cu")
 TEST_SRCS := $(shell find caffe -name "test_*.cpp")
 GTEST_SRC := gtest/gtest-all.cpp
 PROGRAM_SRCS := $(shell find programs -name "*.cpp")
 PROTO_SRCS := $(wildcard caffe/proto/*.proto)
+# The generated files for protocol buffers
 PROTO_GEN_HEADER := ${PROTO_SRCS:.proto=.pb.h}
 PROTO_GEN_CC := ${PROTO_SRCS:.proto=.pb.cc}
 PROTO_GEN_PY := ${PROTO_SRCS:.proto=_pb2.py}
+# The objects that are needed to generate the library
 CXX_OBJS := ${CXX_SRCS:.cpp=.o}
 CU_OBJS := ${CU_SRCS:.cu=.cuo}
-PROGRAM_OBJS := ${PROGRAM_SRCS:.cpp=.o}
-PROTO_OBJS := ${PROTO_SRCS:.proto=.pb.o}
+PROTO_OBJS := ${PROTO_GEN_CC:.cc=.o}
 OBJS := $(PROTO_OBJS) $(CXX_OBJS) $(CU_OBJS)
+# program and test objects
+PROGRAM_OBJS := ${PROGRAM_SRCS:.cpp=.o}
 TEST_OBJS := ${TEST_SRCS:.cpp=.o}
 GTEST_OBJ := ${GTEST_SRC:.cpp=.o}
-TEST_BINS := ${TEST_OBJS:.o=.testbin}
+# program and test bins
 PROGRAM_BINS :=${PROGRAM_OBJS:.o=.bin}
+TEST_BINS := ${TEST_OBJS:.o=.testbin}
 
+# define third-party library paths
 CUDA_DIR := /usr/local/cuda
 CUDA_ARCH := -arch=sm_20
 MKL_DIR := /opt/intel/mkl
@@ -36,42 +39,46 @@ CUDA_LIB_DIR := $(CUDA_DIR)/lib64
 MKL_INCLUDE_DIR := $(MKL_DIR)/include
 MKL_LIB_DIR := $(MKL_DIR)/lib $(MKL_DIR)/lib/intel64
 
+# define inclue and libaries
 INCLUDE_DIRS := . /usr/local/include $(CUDA_INCLUDE_DIR) $(MKL_INCLUDE_DIR)
 LIBRARY_DIRS := . /usr/lib /usr/local/lib $(CUDA_LIB_DIR) $(MKL_LIB_DIR)
 LIBRARIES := cuda cudart cublas protobuf glog mkl_rt mkl_intel_thread curand \
 		leveldb snappy opencv_core opencv_highgui pthread tcmalloc
 WARNINGS := -Wall
 
-CXXFLAGS += -pthread -fPIC -O2 $(foreach includedir,$(INCLUDE_DIRS),-I$(includedir))
-NVCCFLAGS := -Xcompiler -fPIC -O2 $(foreach includedir,$(INCLUDE_DIRS),-I$(includedir))
-LDFLAGS += $(foreach librarydir,$(LIBRARY_DIRS),-L$(librarydir))
-LDFLAGS += $(foreach library,$(LIBRARIES),-l$(library))
+COMMON_FLAGS := $(foreach includedir,$(INCLUDE_DIRS),-I$(includedir))
+CXXFLAGS += -pthread -fPIC -O2 $(COMMON_FLAGS)
+NVCCFLAGS := -Xcompiler -fPIC -O2 $(COMMON_FLAGS)
+LDFLAGS += $(foreach librarydir,$(LIBRARY_DIRS),-L$(librarydir)) \
+		$(foreach library,$(LIBRARIES),-l$(library))
 
-LINK = $(CXX) $(CXXFLAGS) $(CPPFLAGS) $(LDFLAGS) $(WARNINGS)
 NVCC = nvcc $(NVCCFLAGS) $(CPPFLAGS) $(CUDA_ARCH)
 
 .PHONY: all test clean distclean linecount program
 
-all: $(NAME)
+all: $(NAME) $(STATIC_NAME) test program
 
 linecount: clean
 	cloc --read-lang-def=caffe.cloc caffe/
 
-test: $(OBJS) $(GTEST_OBJ) $(TEST_BINS)
+test: $(TEST_BINS)
 
-program: $(OBJS) $(PROGRAM_BINS)
+program: $(PROGRAM_BINS)
+
+$(NAME): $(PROTO_OBJS) $(OBJS)
+	$(CXX) -shared $(OBJS) -o $(NAME) $(LDFLAGS) $(WARNINGS)
+
+$(STATIC_NAME): $(PROTO_OBJS) $(OBJS)
+	ar rcs $(STATIC_NAME) $(PROTO_OBJS) $(OBJS)
 
 runtest: test
-	for testbin in $(TEST_BINS); do $$testbin 1; done
+	for testbin in $(TEST_BINS); do $$testbin $(TEST_GPUID); done
 
-$(TEST_BINS): %.testbin : %.o
-	$(CXX) -pthread $< $(OBJS) $(GTEST_OBJ) -o $@ $(LDFLAGS) $(WARNINGS)
+$(TEST_BINS): %.testbin : %.o $(GTEST_OBJ) $(STATIC_NAME)
+	$(CXX) $< $(GTEST_OBJ) $(STATIC_NAME) -o $@ $(LDFLAGS) $(WARNINGS)
 
-$(PROGRAM_BINS): %.bin : %.o
-	$(CXX) -pthread $< $(OBJS) -o $@ $(LDFLAGS) $(WARNINGS)
-
-$(NAME): $(PROTO_GEN_CC) $(OBJS)
-	$(LINK) -shared $(OBJS) -o $(NAME)
+$(PROGRAM_BINS): %.bin : %.o $(STATIC_NAME)
+	$(CXX) $< $(STATIC_NAME) -o $@ $(LDFLAGS) $(WARNINGS)
 
 $(CU_OBJS): %.cuo: %.cu
 	$(NVCC) -c $< -o $@
@@ -80,7 +87,7 @@ $(PROTO_GEN_CC): $(PROTO_SRCS)
 	protoc $(PROTO_SRCS) --cpp_out=. --python_out=.
 
 clean:
-	@- $(RM) $(NAME) $(TEST_BINS) $(PROGRAM_BINS)
+	@- $(RM) $(NAME) $(STATIC_NAME) $(TEST_BINS) $(PROGRAM_BINS)
 	@- $(RM) $(OBJS) $(TEST_OBJS) $(PROGRAM_OBJS)
 	@- $(RM) $(PROTO_GEN_HEADER) $(PROTO_GEN_CC) $(PROTO_GEN_PY)
 

src/programs/train_net.cpp

@@ -1,8 +1,11 @@
 // Copyright 2013 Yangqing Jia
+//
+// This is a simple script that allows one to quickly train a network whose
+// parameters are specified by text format protocol buffers.
+// Usage:
+//    train_net net_proto_file solver_proto_file
 
 #include <cuda_runtime.h>
-#include <fcntl.h>
-#include <google/protobuf/text_format.h>
 
 #include <cstring>
 
@@ -22,8 +25,7 @@ int main(int argc, char** argv) {
   Caffe::set_phase(Caffe::TRAIN);
 
   NetParameter net_param;
-  ReadProtoFromTextFile(argv[1],
-      &net_param);
+  ReadProtoFromTextFile(argv[1], &net_param);
   vector<Blob<float>*> bottom_vec;
   Net<float> caffe_net(net_param, bottom_vec);