hotspot
Performance report generator for OpenMP programs in GNU/Linux.
Installation
The reports are generated using Latex. System performance is measured using HPCC. Program performance is measured using gprof and perf. A toolchain is used to build the program for optimization or profiling.
Ubuntu 14.04.2 LTS
$ sudo apt-get install texlive texlive-lang-spanish openmpi-bin hpcc gcc gfortran build-essential git python-pip libpng3 libfreetype6 python-matplotlib python-numpy python-dateutil python-scipy ispell htop emacs ipython sysstat texlive-latex-extra linux-tools-generic python graphviz firefox mupdf dwarves linux-tools-3.13.0-32 -y
$ sudo pip install hotspot
Note: perf needs a kernel specific package named linux-tools-* Note: if PDF viewer SIGFAULTS, use mupdf as alternative.
Configuration
A configuration file is used to configure how to build and run the program. An annotated sample configuration file can be used as starting point.
$ vim hotspot.cfg
Usage
A command line utility is used to run a set of program executions under different conditions to extrapolate performance information.
$ hotspot --help
usage: hotspot [-h] [-v] [--config CONFIG] [--debug]
Generate performance report for OpenMP programs.
optional arguments:
-h, --help show this help message and exit
-v, --version show program's version number and exit
--config CONFIG, -c CONFIG
path to configuration
--debug, -d enable verbose logging
Check https://github.com/moreandres/hotspot for details.
$ hotspot
Examples
Built-in samples are available with well-known compute kernels.
$ hotspot matrix
$ hotspot heat2d
$ hotspot mandel
Configuration File
# hotspot configuration file
[hotspot]
# python format method is used to pass parameters
# range is a seq-like definition for problem size
range=1024,2048,256
# cflags are the compiler flags to use when building
cflags=-O3 -Wall -Wextra
# build is the command used to build the program
build=CFLAGS='{0}' make
# clean is the cleanup command to execute
clean=make clean
# run is the program execution command
run=OMP_NUM_THREADS={0} N={1} ./{2}
# count is the number of runs to check workload stabilization
count=16
