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World Community Grid Forums
Category: Active Research
Forum: Smash Childhood Cancer
Thread: SCC program used suboptimal? |
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Thread Status: Active Total posts in this thread: 18
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
 Why do these tasks use intelx86 version of wcgrid_scc1 but not x86_64 version? Is this an approach to a better compute performance, or this is just a flaw? |
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Falconet
Master Cruncher Portugal Joined: Mar 9, 2009 Post Count: 3295 Status: Offline Project Badges: 
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SCC has a 64-bit app.
----------------------------------------I'm running it just now. AMD Ryzen 5 1600AF 6C/12T 3.2 GHz - 85W AMD Ryzen 5 2500U 4C/8T 2.0 GHz - 28W AMD Ryzen 7 7730U 8C/16T 3.0 GHz |
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hchc
Veteran Cruncher USA Joined: Aug 15, 2006 Post Count: 748 Status: Offline Project Badges:
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I've noticed many of the Quorum 2/Replication 2 work units use the 32-bit application, and the Quorum 1/Replication 1 work units use the 64-bit.
----------------------------------------Once you have returned enough "Valid" work units to each project, such as SCC, your machine should get Quorum 1/Replication 1 64-bit work units.
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I've noticed many of the Quorum 2/Replication 2 work units use the 32-bit application, and the Quorum 1/Replication 1 work units use the 64-bit. Once you have returned enough "Valid" work units to each project, such as SCC, your machine should get Quorum 1/Replication 1 64-bit work units. Then it's just a problem of the computing power I gave out? |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
 Tried on linux(Debian 4.9.130-2 amd64), and got 4 assignment running on amd64 instantaneously...  Just make me more confusing |
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Falconet
Master Cruncher Portugal Joined: Mar 9, 2009 Post Count: 3295 Status: Offline Project Badges:
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I seem to recall that 32-bit vs 64-bit on Windows isn't that different when it comes to performance. And that in some computers, 64-bit actually runs slower (small decrease) and so WCG automatically sends 32-bit apps.
----------------------------------------On Linux, there is a massive performance increase using the 64-bit apps compared to Windows 64-bit or 32-bit, on the VINA sciences, such as Zika and SCC. AMD Ryzen 5 1600AF 6C/12T 3.2 GHz - 85W AMD Ryzen 5 2500U 4C/8T 2.0 GHz - 28W AMD Ryzen 7 7730U 8C/16T 3.0 GHz |
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KerSamson
Master Cruncher Switzerland Joined: Jan 29, 2007 Post Count: 1671 Status: Offline Project Badges: 
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In many cases, 64 bit applications remain a problem in Windows (starting with MS own applications) !!!
----------------------------------------Yves |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I seem to recall that 32-bit vs 64-bit on Windows isn't that different when it comes to performance. And that in some computers, 64-bit actually runs slower (small decrease) and so WCG automatically sends 32-bit apps. On Linux, there is a massive performance increase using the 64-bit apps compared to Windows 64-bit or 32-bit, on the VINA sciences, such as Zika and SCC. Well... In fact, wcg has sent these computation applications: FAHB: i386 only MCM: amd64 only MIP: i386 only SCC: gfx(both) vina(both) ZIKA: amd64 only So may I assume that, before starting the first computation, wcg had ran some benchmarks on my computer to compare the two programs, and determined which one is better in the same project? What a joke, it should have found out that I have no NVIDIA display adapters installed, thus should have removed the two wcgrid_scc1_gfx_7.08_windows_xxxxx programs from hard drive.(wwwwwwwww) |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
What a joke, it should have found out that I have no NVIDIA display adapters installed, thus should have removed the two wcgrid_scc1_gfx_7.08_windows_xxxxx programs from hard drive.(wwwwwwwww) You may know something I don't, but at the moment there are NO GPU-based science apps on WCG (and there haven't been for a long time), so I THINK that the programmes you're referring to are the ones that run when you hit "Show graphics" or you run the screensaver. |
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hchc
Veteran Cruncher USA Joined: Aug 15, 2006 Post Count: 748 Status: Offline Project Badges:
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Heuristic0667 said:
----------------------------------------I've noticed many of the Quorum 2/Replication 2 work units use the 32-bit application, and the Quorum 1/Replication 1 work units use the 64-bit. Once you have returned enough "Valid" work units to each project, such as SCC, your machine should get Quorum 1/Replication 1 64-bit work units. Then it's just a problem of the computing power I gave out? Sorry, I don't understand what you mean by "computing power." If you look at the work units in "Results Status," you can tell if it's Quorum 1/Replication 1 or Quorum 2/Replication 2. I've noticed that often times if you are a wingman in a Quorum 2/Replication 2 work unit, everyone will run the 32-bit application. I've also noticed that for Quorum 1/Replication 1 work units, the 64-bit application will be used.
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