CTools:MilepostGCC

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Revision as of 01:16, 17 April 2010

	MILEPOST GCC
	*machine-learning enabled self-tuning compiler*

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MILEPOST GCC is the first practical attept to build machine learning enabled open-source self-tuning production (and research) compiler that can adapt to any architecture using iterative feedback-directed compilation, machine learning and collective optimization. It is based on production quality GCC that supports more than 30 families of architectures and can compile real, large applications including Linux, and on Interactive Compilation Interface that provides plugin system to access internals of compilers. MILEPOST GCC attempts to correlate program features and program optimizations during empirical iterative compilation to predict good optimizations for unseen programs based on prior learning. MILEPOST and cTuning infrastructure automates code and architecture optimization to improve execution time, code size, compilation time and other characteristics at the same time. This technology is not GCC-dependent and can be used in any compiler using common Interactive Compilation Interface and compiler independent plugins. More information can be found in the following paper about MILEPOST GCC.

Background:

Downloads

Documentation

User suggestions and feedback

Bug reports

FAQs - Does MILEPOST GCC solve all optimization problems? How similar is it ACOVEA tool? etc...

Related:
- Online predictor of optimizations based on program features.
- Collective optimization repository to continuously collect profitable optimization cases from the community that improve program execution time, code size, compilation time, etc...
- CCC framework - Continuous Collective Compilation Framework to automate search of profitable optimization cases to improve program execution time, code size, compilation time, etc. It is used to train MILEPOST GCC and has some similarities with the useful ACOVEA tool but also allows automatic sharing of optimization knowledge with the community in the Collective Optimization Database and uses plugins to implement various search techniques besides genetic algorithms.
- Old website of the MILEPOST project (2006-2009).

News

2010.April.14 - Long awaited GCC 4.5 has been released!

2010.March.17 - We pre-released all tools including MILEPOST GCC, CCC framework, cBench and cDatabase. It's a major update of cTuning tools including support of transparent optimizations of programs and libraries, better multi-objective optimization (including balancing of execution time, code size and compilation time), bug fixes in averaging multiple optimization cases, C++ support in MILEPOST GCC, support of all version of GCC 4.4, new static features in MILEPOST GCC, extended documentation, etc. Feedback and comments are welcome here.

2010.March.01 - CGO'10 program is available on-line.

2010.February.22 - MILEPOST 1.5 GCC 4.4.0 pre-release is now available.

2010.February.18 - We are in the process of updating this website as well as MILEPOST GCC, CCC framework, web-services.).

News archive

MILEPOST GCC friends:

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 {{News|
+* '''2010.April.14''' - Long awaited GCC 4.5 has been [http://gcc.gnu.org/gcc-4.5 released]!
 * '''2010.March.17''' - We pre-released all tools including [[CTools:MilepostGCC|MILEPOST GCC]], [[CTools:CCC|CCC framework]], [[CTools:CBench|cBench]] and [[CDatabase|cDatabase]]. It's a major update of cTuning tools including support of transparent optimizations of programs and libraries, better multi-objective optimization (including balancing of execution time, code size and compilation time), bug fixes in averaging multiple optimization cases, C++ support in MILEPOST GCC, support of all version of GCC 4.4, new static features in MILEPOST GCC, extended documentation, etc. Feedback and comments are welcome [http://groups.google.com/group/ctuning-discussions/browse_thread/thread/c22a6109d57905f7 here].