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World Community Grid Forums
Category: Completed Research
Forum: Computing for Sustainable Water Forum
Thread: Computing for Sustainable Water Problems Thread |
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Thread Status: Active Total posts in this thread: 254
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9maMSSuNWXgttyKdZhMemeXmEx8
Senior Cruncher Puerto Rico Joined: Feb 20, 2008 Post Count: 191 Status: Offline Project Badges: 
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Interesting Facts:
----------------------------------------My Tablet, an Acer Iconia Tab W500 with a 1.00Ghz AMD C-50 processor performs workunits for 14 hours, with 13 hours being CPU time. My HP with an Single-Core Intel Pentium M at 1.86Ghz performs a workunit for 12-13 hours. Are AMD processors better for this project? I also have a compaq laptop with Pentium 4-M processor at 1.6Ghz, this one is the only linux laptop I have and it takes 21 hours (19 hours CPU time). The processor is also a one-core processor. Now, my main laptop, which is a Pavilion dv7-2273cl with an Intel T6600 2.20Ghz Dual Core right now is processing a workunit so far it goes 49% with a total of 7 hours at the moment and 5 hours CPU time. My conclusion: AMD is better  ?? Considering the C-50 is just 1Ghz and it finishes a workunit in just 14 hours and 13 hours CPU time...  |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Hello moisesmcardona,
All I know about the AMD C-50 (Ontario) dual-core chip is that it has 2 Bobcat cores and is a very recent chip, though not as new as the C-60 with Turbo-boost. It is an Out-Of-Order processor, which speeds up execution to slightly exceed the throughput of a 1.6 Ghz Intel Atom (according to AMD). So much for the reviews. I don't follow the low power mobile chips, so the microprocessor architectures are mysteries to me. I still remember a bit about the Pentium-M architecture from days gone by, but I would expect a 2011 chip to look more efficient than an older chip, by some measure (watts, Ghz, etc.). Lawrence |
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Dark Angel
Veteran Cruncher Australia Joined: Nov 11, 2005 Post Count: 721 Status: Offline Project Badges: 
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To say there are substantial performance differences between a Pentium4 class machine and a current mobile processor is something of an understatement. It's really not fair to compare makers using chips that are generations apart in technology.
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David Autumns
Ace Cruncher UK Joined: Nov 16, 2004 Post Count: 11062 Status: Offline Project Badges:
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Whoa this is one great Memory hog of a project
----------------------------------------First time I have seen the "waiting for memory" status in BOINC  Well over 200Meg/WU 16GB of reinforcements are in the post. Just waiting for the Cavalry  Dave Check your Memory Usage Options Use at most X % when computer in use/is idle. The defaults may be holding up your crunching  |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Whoa this is one great Memory hog of a project Yep, I got that confirmed. In my machines, if I suspend a WCG VINA-based project, the uptick in memory use (as shown by the taskManager in Windows or systemMonitor in Linux) is slight compared to a large swing up when I pause a CFSW WU.; |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I think I heard mention of this before, but I am not sure.
----------------------------------------My computer is way over-caching WU's. I have my cache set to half a day, but it usually collects around 4 days worth. Any suggestions? In case it matters: win64 xeon x5650 (6 core, hyperthreading on, 12 tasks at once) I run fairly close to 24x7 [Edit 1 times, last edit by Former Member at May 7, 2012 4:13:35 PM] |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
4 days cache Total or "per core"?
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
4 days cache Total or "per core"? --//-- per core. So I have it set to 0.5 in settings, but it takes me about 4 real calendar days to get through it. |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Assuming it's a 24/7 machine 100% CPU time machine, estimates occasionally go wonky, but BOINC adjusts for that over time, to request less work (no work actually), so it will get back to buffering 0.5 days per core as your comp crunches on.
--//-- |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Assuming it's a 24/7 machine 100% CPU time machine, estimates occasionally go wonky, but BOINC adjusts for that over time, to request less work (no work actually), so it will get back to buffering 0.5 days per core as your comp crunches on. --//-- Thanks for the replies. It has been this way for over a week. I'll see if it starts getting better soon. |
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