Message boards : Number crunching : Rosetta CPU optimization - how ?
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Piotr Skrodzewicz Send message Joined: 21 Oct 06 Posts: 19 Credit: 278,430 RAC: 0 |
Hey, there are free and academic (much lower cost) licenses: http://www.intel.com/cd/software/products/asmo-na/eng/219771.htm http://www.intel.com/cd/software/products/asmo-na/eng/219603.htm#academic This compiler IS THE fastest one. I really can't understand why most of/all boinc projects don't use ICC - benefits are clear - more processing power, more satisfaction of users (faster credits, more units computed etc.). EDIT: Guys, I found a person who will compile Rosetta with SSE, SSE2, SSE3, SSSE3. Now I must "only" obtain source code ;) Non-commercial version of ICC will be used. |
DJStarfox Send message Joined: 19 Jul 07 Posts: 145 Credit: 1,250,162 RAC: 0 |
I agree. If someone could start a fund raising campaign for a new compiler, I bet you could raise the money in a couple of weeks. You'd probably need to get the department admins involved so all donations go to this special university "project". |
FluffyChicken Send message Joined: 1 Nov 05 Posts: 1260 Credit: 369,635 RAC: 0 |
Piotr, you may want to post in David Baker Journal feedback or contact them directly. As for fund-raising, money is not normally the problem (and I'm sure Washington university have the compilers or can afford them already, certainly the Gates Foundation funding would be enough as well. That and they're from Who?'s post up there, in talks with Intel... Team mauisun.org |
(_KoDAk_) Send message Joined: 18 Jul 06 Posts: 109 Credit: 1,859,263 RAC: 0 |
That officials think of this all ???? What motives at them not to realise optimisation favourable by it. |
FluffyChicken Send message Joined: 1 Nov 05 Posts: 1260 Credit: 369,635 RAC: 0 |
That officials think of this all ???? We would have to wait for the project Admin to comment (maybe a mod could ask them the question and the status of other platforms... But time and resources are probably a major factor since comments from both Who? (An Intel Senior Performance Analyst) and Mats Petersson (AMD programmer ?) say converting to x64 or utilising SIMD instructions for this project would inclide a major re-write of the code to see any major benefit. Though Who? still stalks the halls, Mats seems to have stopped crunching now. Team mauisun.org |
Gen_X_Accord Send message Joined: 5 Jun 06 Posts: 154 Credit: 279,018 RAC: 0 |
Is the deal between Rosetta and Intel going to put AMD machines at a disadvantage, or maybe even phase out AMD machines in the future? |
Piotr Skrodzewicz Send message Joined: 21 Oct 06 Posts: 19 Credit: 278,430 RAC: 0 |
Is the deal between Rosetta and Intel going to put AMD machines at a disadvantage, or maybe even phase out AMD machines in the future? Hmm, using ICC10 should speed up computations on both Intel and AMG CPUs. Althrough ICC is known to have some anti-amd rountines (causes program to run not at full speed on AMD). But 1. Maybe in version 10 this problem does not occur 2. There are patches that cause programs to run on full speed on AMD CPUs. Anyway ICC is worth trying ! Peter |
Klimax Send message Joined: 27 Apr 07 Posts: 44 Credit: 2,800,788 RAC: 406 |
Is the deal between Rosetta and Intel going to put AMD machines at a disadvantage, or maybe even phase out AMD machines in the future? Part of those "anti-AMD" routines is caused by mistake in detection-code,where it tries to detect old version of Athlon,which had broken support for SSE,but it did inversly and used slower path for CPUs with correct support.This has been lengthly discussed at Einstein.So far nobody to my best knowledge made tests to show,that Intel is slowing AMD chips. |
(_KoDAk_) Send message Joined: 18 Jul 06 Posts: 109 Credit: 1,859,263 RAC: 0 |
SSE4.1 is comming !!!!!!!!! BUT Rosetta still use SSE1 OMG!!!! |
Piotr Skrodzewicz Send message Joined: 21 Oct 06 Posts: 19 Credit: 278,430 RAC: 0 |
SSE4.1 is comming !!!!!!!!! IIRC Rosetta does not use even SSE ! |
Natronomonas Send message Joined: 11 Jan 06 Posts: 38 Credit: 536,978 RAC: 0 |
Somehow it looks like the whole SSE4/SSE5 "competition"/implementation, on Intel/AMD respectively, isn't going to matter much to Rosetta! : ) Crunching Rosetta as a member of the Whirlpool BOINC Teams |
Michael G.R. Send message Joined: 11 Nov 05 Posts: 264 Credit: 11,247,510 RAC: 0 |
I know everybody's busy and these things take a long time to code, but if the science that Rosetta does is so important, wouldn't speeding things up from now on by x% be very important? I'm sure this has been considered and that the Rosetta team has looked at the opportunity cost, but maybe there's a third way; maybe it's possible to make a public call for optimizations experts or whatever and try to get this done without taking time away from the people who work on the science code. I'm sure there's a coder out there who would love to add this challenge to his/her portfolio. I guess it depends on whether what is needed is just a good programmer or someone who also understand the protein science too... In any case, I certainly would love to see more of the potential of modern CPUs being used by this awesome project. Making better predictions and finding cures faster seems like it's worth the effort. |
Jmarks Send message Joined: 16 Jul 07 Posts: 132 Credit: 98,025 RAC: 0 |
I know everybody's busy and these things take a long time to code, but if the science that Rosetta does is so important, wouldn't speeding things up from now on by x% be very important? The beta I'm on has doubled the output by using the sse instructions. I know that the intels cpus are benifiting the most by this beta so far. I think the higher fsb and cache of the newer intels is a larger facter too. Jmarks |
dcdc Send message Joined: 3 Nov 05 Posts: 1832 Credit: 119,688,048 RAC: 10,544 |
The beta I'm on has doubled the output by using the sse instructions. what beta is that? |
Jmarks Send message Joined: 16 Jul 07 Posts: 132 Credit: 98,025 RAC: 0 |
The beta I'm on has doubled the output by using the sse instructions. Folding at Home SMB Windows beta. Jmarks |
Message boards :
Number crunching :
Rosetta CPU optimization - how ?
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