README.md

Universal, customizable and multi-objective software and hardware autotuning

All CK components can be found at cKnowledge.io and in one GitHub repository!

This project is hosted by the cTuning foundation.

Linux & MacOS: Windows:

This is a CK repository for the universal, customizable, multi-dimensional and multi-objective SW/HW benchmarking, autotuning and co-design with a unified JSON API across Linux, Android, MacOS and Windows-based machines.

This repository included CK modules, actions and components for unified

• program compilation and execution (with multiple data sets)
• crowd-benchmarking
• statistical analysis of empirical results
• plugin-based autotuning
• automatic performance modeling
• static and dynamic features extraction
• learning to predict optimizations and run-time adaptation
• reproducibility of experimental results

Further info:

• Shared portable CK program workflows
• Open CK platform to publish and download stable CK components
• MLPerf crowd-benchmarking demo
• Documentation about portable CK workflows
• Related CK publications

Author

• Grigori Fursin

Contributors

• See the list of contributors

Shared CK modules with actions

• program
• program.output
• pipeline
• pipeline.cmd
• platform.gpgpu
• algorithm
• choice
• compiler
• dataset
• dataset.features
• program.behavior
• program.dynamic.features
• program.experiment.speedup
• program.species
• program.static.features

Installation

First install the CK framework as described here.

Then install this CK repository as follows:

 $ ck pull repo:ck-autotuning

You can now browse and reuse program workflows shared at the CK portal.

Please refer to the CK online guides including CK portable workflows and the autotuning example.

Troubleshooting

• Issues with GLIBCXX_3.4.20/3.4.21 when using LLVM installed via CK: These sometimes occur on earlier Ubuntu versions (14.04) on ARM/x86. This can be fixed by upgrading to later versions of Ubuntu, or can sometimes be fixed by:

 $ sudo add-apt-repository ppa:ubuntu-toolchain-r/test
 $ sudo apt-get update
 $ sudo apt-get upgrade
 $ sudo apt-get dist-upgrade

• Issues with libncursesw.so.6 (not found) on some older machines: It can be fixed by compiling and installing lib-ncurses with the support for wide characters. This can be done automatically via CK:

 $ ck install package:lib-ncurses-6.0-root

Questions and comments

Please feel free to get in touch with the CK community if you have any questions, suggestions and comments!