Linked by Thom Holwerda on Wed 15th Jun 2011 14:23 UTC, submitted by Valhalla
"PathScale announced today that the EKOPath 4 Compiler Suite is now available as an open source project and free download for Linux, FreeBSD and Solaris. This release includes documentation and the complete development stack, including compiler, debugger, assembler, runtimes and standard libraries. EKOPath is the product of years of ongoing development, representing one of the industries highest performance Intel 64 and AMD C, C++ and Fortran compilers." More here.
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RE[2]: How fast could i make my code:
by judgen on Wed 15th Jun 2011 15:15
in reply to "RE: How fast could i make my code:"
Member since:2006-07-12
RE[3]: How fast could i make my code:
by ciplogic on Wed 15th Jun 2011 16:06
in reply to "RE[2]: How fast could i make my code:"
Member since:2006-12-22
As most modern compilers, they know to optimize patterns, sometimes with a wider applicability or lesser one.
EkoPath is optimized for HPC workloads (similar with Intel Compiler to one level) and for Amd64 bit only, meaning that they had in some cases opportunities to make the best code.
So at the end: if you have tight scientific code there will be a visible at least 20% speedup over GCC. Also the runtime have more optimized runtime methods, so if the application will use them, can see more benefits, but who knows!?
At the end, will a distro recompile everything to EkoPath? I think that is unlikely: the binaries are a bit bigger as far as I've sow and the speed is not obtained most likely just from this. Will a browser vendor recompile their products to obtain a bit faster layouting? Maybe.
At the end I think you will simply win if you will have to render a thing for a week and worth the price to recompile the raytracer to finish if things will work smooth in 5 days, and one day of you will be free.
RE[3]: How fast could i make my code:
by CodeMonkey on Wed 15th Jun 2011 21:21
in reply to "RE[2]: How fast could i make my code:"
Member since:2005-09-22
Will the suite make for faster binaries? That i could not find a definite answer for on phoronix.
I've been maintaining the LAPACK build and test infrastructure for ~ 6mo now and we've seen great performance numbers out of the PathScale compilers. Typical runtimes for the LAPACK test suite running 4 tests in parallel for 98 tests (this is on a 2 year old quad core xeon):
GNU Fortran : 1.5 min.
Intel Fortran : 0.7 min.
PGI Fortran : 0.7 min.
PathScale Fortran : 0.4 min.
I was blown away by it myself and almost didn't beleive it. I've seen comparable results with other C++ code bases. There are many contributing factors to the performance of your code (often HPC code will depend heavily on an optimized math library) and everybody's codebase and workload is different, but speaking from experience, for math intensive code the PathScale compiler is really top notch.
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2005-10-10
Some of your questions are answered in the linked article.... I think all of them in the forums at Phoronix.