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World Community Grid Forums
Category: Completed Research
Forum: Uncovering Genome Mysteries
Thread: Hardware Specs for UGM (L2 Cache and SSE4.1) |
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Thread Status: Active Total posts in this thread: 5
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imakuni
Advanced Cruncher Joined: Jun 11, 2009 Post Count: 105 Status: Offline Project Badges: 
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Basically, my old Pentium failed me, and I found a replacement for rather cheap, so I'll be going for that.
----------------------------------------Thing is, I have 2 options. Either a Pentium Dual Core or a more expensive Core 2 Duo. While I can afford either without much problem, I don't really want to spend extra money without any reason. Both are clocked at the same speed, so the only difference is the extra L2 cache and the support for sse4.1 instruction set. I've heard that UGM runs better on "newer" CPUs, due to their instruction sets, though I don't seem to find where I read that, nor if it is actually true (and if it is, which is the actual instruction set that matters). So question is, does UGM, or any other current WCG poject, takes advantage of the extra L2 and/or SSE4.1?  Want to have an image of yourself like this on? Check this thread: https://secure.worldcommunitygrid.org/forums/wcg/viewthread_thread,29840 [Edit 2 times, last edit by imakuni at Jun 8, 2015 4:26:15 PM] |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Hear a lot, lots of 'made up as they go' included [links to who/where is making it up are welcome, but if you can't find where it's you maybe ;].
----------------------------------------SSE2 is the requirement, the science not coded to make use of anything beyond as the program has to be able to run on the widest variety of CPU/OS combinations and still consistently produce the exact same result **. Since the latest version of the science app adheres to the 'Write to disk at most nn seconds', it performs equally as the other sciences on the Windows platform, no extra benefit reported to run UGM1 under Linux. ** Absolute quorum 2 is a must for this research... no room at all to get the amino acid combo's wrong, or we'd end up with a garbage database. [Edit 2 times, last edit by Former Member at Jun 8, 2015 4:38:26 PM] |
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imakuni
Advanced Cruncher Joined: Jun 11, 2009 Post Count: 105 Status: Offline Project Badges:
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Hear a lot, lots of 'made up as they go' included [links to who/where is making it up are welcome, but if you can't find where it's you maybe ;]. SSE2 is the requirement, the science not coded to make use of anything beyond as the program has to be able to run on the widest variety of CPU/OS combinations and still consistently produce the exact same result **. Since the latest version of the science app adheres to the 'Write to disk at most nn seconds', it performs equally as the other sciences on the Windows platform, no extra benefit reported to run UGM1 under Linux. ** Absolute quorum 2 is a must for this research... no room at all to get the amino acid combo's wrong, or we'd end up with a garbage database. Right. It solves the question about the instruction set. But I still wonder if the 2 vs 6 mb of L2 cache is of any relevance to the current apps. Want to have an image of yourself like this on? Check this thread: https://secure.worldcommunitygrid.org/forums/wcg/viewthread_thread,29840 [Edit 1 times, last edit by imakuni at Jun 8, 2015 5:01:00 PM] |
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katoda
Senior Cruncher Poland Joined: Apr 28, 2007 Post Count: 172 Status: Offline Project Badges: 
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I would say yes, it will make a visible difference - the operating system will work much smoother, apps will start faster etc. etc., so there will be a difference in WCG output as well. Just to prove it - I changed some years ago a CPU in one of my friends' laptop, from Intel T2130 (1,86Ghz dual core, FSB 533MHz, 1 MB cache) to Intel T7200 (2Ghz dual core, FSB677 Mhz, 4 MB cache). Difference in speed - pretty small, difference in cache - 4x and my friend was really surprised how responsiveness of the system increased. So, if there is no big difference in price - go for Core 2 Duo.
---------------------------------------- [Edit 1 times, last edit by katoda at Jun 8, 2015 5:40:39 PM] |
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KLiK
Master Cruncher Croatia Joined: Nov 13, 2006 Post Count: 3108 Status: Offline Project Badges:
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Basically, my old Pentium failed me, and I found a replacement for rather cheap, so I'll be going for that. Thing is, I have 2 options. Either a Pentium Dual Core or a more expensive Core 2 Duo. While I can afford either without much problem, I don't really want to spend extra money without any reason. Both are clocked at the same speed, so the only difference is the extra L2 cache and the support for sse4.1 instruction set. I've heard that UGM runs better on "newer" CPUs, due to their instruction sets, though I don't seem to find where I read that, nor if it is actually true (and if it is, which is the actual instruction set that matters). So question is, does UGM, or any other current WCG poject, takes advantage of the extra L2 and/or SSE4.1? 1st, I would always choose a computer with the MBO that can be upgraded to higher CPU...probably that is the one with newer CPU... even if I suffer @ 1st leg...there is a more room for improvement! So later on u can upgrade to a better & faster CPU! 2nd, extra L2 cache will make a HUGE difference! I remembered those in the days of P2 vs Mendocino with 512KB vs 128KB...same thing was on a newer P3 512/256KB vs Coppermine 128KB...same thing on a P3T 512KB vs Tualatin 256KB...etc. 3rd, you can also check it ona s CPUboss: http://cpuboss.com/ as 4 UGM...SekeRob answered u!  |
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