CTools:MilepostGCC

From cTuning.org

(Difference between revisions)

Revision as of 18:52, 28 April 2010

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

Navigation: cTuning.org > CTools

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.28 - Discussion page about GCC as a research compiler has been updated; Google Summer of Code'10 projects for GCC has been announced; project to modularize GCC has been proposed by Diego Novillo.

2010.April.14 - Long awaited GCC 4.5 has been released! It features new plugin framework with some parts of ICI to continue GCC modularization and parametrization, simplify pass manipulation and reordering, and enable better integration with cTuning/MILEPOST tools to automate optimization space exploration and prediction of profitable combinations of program transformations during multi-objective optimizations (balancing execution time, code size, compilation time, etc) for a given program/dataset/architecture.

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:

@@ Line 35: / Line 35: @@
 {{News|
+* '''2010.April.28''' - Discussion page about GCC as a research compiler [[Dissemination:Workshops:GROW10:GCC_as_a_research_compiler|has been updated]]; Google Summer of Code'10 projects for GCC has been [http://gcc.gnu.org/wiki/SummerOfCode announced]; project to [http://gcc.gnu.org/wiki/ModularGCC modularize GCC] has been proposed by Diego Novillo.
 * '''2010.April.14''' - Long awaited GCC 4.5 has been [http://gcc.gnu.org/gcc-4.5 released]! It features new plugin framework with some parts of [http://cTuning.org/ici ICI] to continue GCC modularization and parametrization, simplify pass manipulation and reordering, and enable better integration with [http://cTuning.org cTuning]/[http://cTuning.org/milepost-gcc MILEPOST] tools to automate optimization space exploration and prediction of profitable combinations of program transformations during multi-objective optimizations (balancing execution time, code size, compilation time, etc) for a given program/dataset/architecture.