Stencil TEMPlate Engineering Library
This tool allows automatic generation of loop kernels for several kind of stencil patterns. Stempel provides a framework to generate, perform static analysis of the code (exploiting kerncraft), generate a full C code and parallelize it via openMP and blocking.
For a detailed documentation see in docs/.
Remember to setup properly your envirnment in advance. For example, using conda Python:
conda create -n stempel python=3.4
source activate stempel
Clone this repository and run:
python ./setup.py install
If you are unfamiliar with python, here is a tutorial on how to install python packages: https://packaging.python.org/installing/ . The use of virtual enviornments is usually a good choice.
- Additional requirements are:
- kerncraft (used to generate performance models)
- Intel Achitecture Code Analyzer (IACA), with (working)
iaca.shin PATH environment variable (used by ECM, ECMCPU and RooflineIACA models) - likwid (used in Benchmark model)
- PROVA!, in case you want to run a full analysis
- Run stempel C code generator
stempel gen -D 2 -r 1 -i
or
stempel gen -D 2 -r 2 -k box -C variable -p
- Run stempel benchmark generator
stempel bench code.c -m machine_file.yaml -b
- Run a full analysis (a stencil is generated, analysed through kerncraft applying ECM/Data, Roofline and Layer Condition models; a project is set up in PROVA! and an experiment is executed. The outputs are stored to the STEMPEL workspace):
analysis -w ~/Desktop/stempelwork -p ~/PROVA ~/Desktop/provastempel -k star -m BroadwellEP_E5-2697_CoD.yml -r 2 -d 2 -e 5 -t 2 4 8 10 --method_type OpenMP-4.0-GCC-4.9.3-2.25 -C constant -c isotropic -l /apps/likwid/system/include/ /apps/likwid/system/lib/ --iaca
Implementation: Danilo Guerrera
kerncraft : Julian Hammer
ECM Model (theory): Georg Hager, Holger Stengel, Jan Treibig
AGPLv3