azurehpc/apps/cadence_spectre

Cadence Spectre X

The Cadence® Spectre® X Simulator performs advanced SPICE-accurate simulation, enables you to solve large-scale verification simulation challenges for complex analog, RF, and mixed-signal blocks and subsystems. In addition, the Spectre X Simulator allows you to massively distribute simulation workloads, enabling greater speed and capacity.

Cadence Spectre Home Page

Prerequisites

Cluster is built with the desired configuration for networking, storage, compute etc. The simple_hpc_pbs template in the examples directory is a suitable choice.

After cluster is built, first copy the apps directory to the cluster. The azhpc-scp can be used to do this:

azhpc-scp -u hpcuser -r $azhpc_dir/apps hpcuser@headnode:.

Then connect to the headnode:

azhpc-connect -u hpcuser headnode

Installation

Change folder to:

cd /azurehpc/apps/cadence_spectre

Take a look at the 'build_spectre.sh' script, modify the installation directory if needed:

vim build_spectre.sh

Run the 'build_spectre.sh' script:

source build_spectre.sh

The script will do TWO things, first to install install necessary Spectre X packages, for example:

    10020:Legato (TM) Reliability Solution
    32501:Spectre(R) Model Interface Option
    33580:Spectre(R) RelXpert
    3500:Spectre Characterization Simulator Option
    38500:Spectre(R) Classic Simulator
    38510:Spectre Advanced Simulation Interface Option to Spectre Simulator - L
    38520:Spectre(R)-RF Option for 38500 and 91050
    38530:Interactive mode for Spectre(R) using Python/TCL Limited Access
    90003:Spectre Multi-mode Simulation with AP Simulator
    90004:Spectre(R) Multi-mode Simulation
    90005:Spectre(R) Multi-Mode Simulation with AMS
    90006:MMSIM with Spectre X simulator and Spectre X CPU Acceleration
    91010:Spectre(R) APS Verification
    91050:Spectre(R) Accelerated Parallel Simulator
    91051:Spectre Fault Analysis option to Virtuoso Accelerated Parallel Simulator (91050)
    91055:Spectre(R) X Simulator
    91400:Spectre(R) Power Option
    91500:Spectre(R) CPU Accelerator Option
    91600:Spectre Extensive Partitioned Simulator
    91700:Spectre Electromigration and IR Drop Simulator - 3 pack

Secondly to download ready-to-use examples under spectre_example directory.

[hpcadmin@headnode spectre_example]$ pwd
/data/spectrex/spectre_example
[hpcadmin@headnode spectre_example]$ ls -l
total 24
-rwxr-xr-x.  1 hpcadmin hpcadmin  581 May  5 02:21 CLEAN
drwxr-x---. 54 hpcadmin hpcadmin 4096 May  5 02:21 amsPLL
-rwxr-x---.  1 root     root      386 May  5 02:21 cds.lib
-rw-r--r--.  1 hpcadmin hpcadmin  711 May  5 02:21 cshrc_spectre
drwxr-xr-x. 49 hpcadmin hpcadmin 4096 May  5 02:20 gpdk090
drwxr-x---.  3 hpcadmin hpcadmin   21 May  5 02:21 models
drwxr-xr-x.  3 hpcadmin hpcadmin   21 May  5 02:20 models_gpdk045
drwxr-xr-x.  6 hpcadmin hpcadmin 4096 Aug 20 23:50 postlayout_dspf
drwxr-xr-x.  2 hpcadmin hpcadmin   74 May  5 02:20 postlayout_flat
drwxr-xr-x.  4 hpcadmin hpcadmin  120 May  5 02:20 prelayout
drwxr-xr-x.  2 hpcadmin hpcadmin   23 May  5 02:20 standalone

Configure License Server

Make necessary modification of the license file you received from Cadence or supplier. EX: modify the SERVER name:

...
########################### LICENSE KEYS START HERE ######################
SERVER Cadence_SERVER 000d3a5f9947 5280
DAEMON cdslmd ./cdslmd
# DO NOT REMOVE THE USE_SERVER LINE
USE_SERVER
...

Copy the license file to the VM (EX: headnode), and then execute:

[your installation directory]/bin/lmgrd -c License_46499_000d3a5f9947_7_2_2020.txt -l license.log

Run Spectre X

You can now run a Spectre X job on the cluster. Below is an example to run a post layout dspf simulation with 32 threads (-mt=32):

[hpcadmin@headnode postlayout_dspf]$ cat run.spectrex
#!/bin/bash

# TODO: Change to your installation directory
export MMSIMHOME="/data/spectrex/"

export PATH="$PATH:$MMSIMHOME/tools/bin:$MMSIMHOME/tools/spectre/bin:$MMSIMHOME/tools/ultrasim/bin:$MMSIMHOME/tools/relxpert/bin"

export LD_LIBRARY_PATH="/usr/lib/X11:/usr/X11R6/lib:/usr/lib:/usr/dt/lib/usr/openwin/lib:/usr/ucblib"

export LM_LICENSE_FILE="5280@headnode"
export CDS_LIC_FILE="$LM_LICENSE_FILE"

export CDS_AUTO_64BIT="ALL"

cd /data/spectrex/spectre_example/postlayout_dspf
sudo yum -y install ksh
spectre -64 +preset=cx +mt=32 input.scs -o SPECTREX_cx_32t +lqt 0 -f sst2

Sample result: