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World Community Grid Forums
Category: Retired Forums
Forum: UD Windows Agent Support [Read Only]
Thread: some questions about MP machines?! |
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Thread Status: Active Total posts in this thread: 14
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KLiK
Master Cruncher Croatia Joined: Nov 13, 2006 Post Count: 3108 Status: Offline Project Badges: 
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hy,
----------------------------------------I'm one of the refugees from teh UD grid.org...so now i have all my compuetrs set on WCG! all of my computers are using UD version of the WCG software...so here are my questions: 1. on job i have 11 machines hooked on the the WCG, all of which is UD agent...3-4 of those are P4 with HT technology...do you suggest me to de-install UD agent and put BOINC version of the software there? 2. at home i have 3-4 machines...1-2 of those are dual-CPU: one old BP6 board, one newer GA7! do you suggest me to switch to BOINC software also? 3. UD has been loud on the bells about beta versions of the new software, that should work fine of Vista, on x64, on dual-cores (quad-cores) & on dual-CPU...how is the progress going? now that the machines are running, it would be stupid to upgrade, if the new software is "behind a corner"... also, at home i use UDmonitor...is it OK to do so? |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Yes, use BOINC on dual CPU/core machines. You can use it with HT too, but you will only see a very tiny advantage.
United Devices were going to trial the Grid MP 5 software over at grid.org, and WCG would base their decision on how that worked out. Now that United Devices have terminated grid.org, all bets are off. WCG may take the risk of testing the software themselves, but the question we're all asking is: why did grid.org not do it? Anyway, whatever happens, it will take some time. BOINC is available now. :-) |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Didactylos is unusually timorous about pushing BOINC today.
 I suggest not running more than one thread on a hyper-threading Pentium IV because you may run into memory constraints unexpectedly while running multiple giant programs. Why court trouble for only a tiny gain in throughput? You can tell each BOINC client how many work units it may run simultaneously (choose 1 for P4s). But do experiment with BOINC on your duals. The instructions are here: http://www.wcgwiki.org/en/boinc/migration.cfm If you like BOINC, you are a prime candidate for BOINCview, a third party utility that lets you conveniently monitor all your machines from one point. Plus, you can start spreading your wings and look over other projects: http://boinc.berkeley.edu/projects.php Lawrence |
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retsof
Former Community Advisor USA Joined: Jul 31, 2005 Post Count: 6824 Status: Offline Project Badges: 
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Yes, I'd stay with one BOINC thread on an HT machine. There are two virtual cores, but only ONE floating point register. That means a lot of thrashing around if you run two workunits simultaneously.
----------------------------------------HT works best with two dissimilar progams, one crunching, and one word processor, or whatever. In the meantime, two workunits can run successfully on a true multicore machine .... if it's BOINC. The UD.EXE version will only use one core.
SUPPORT ADVISOR
----------------------------------------Work+GPU i7 8700 12threads School i7 4770 8threads Default+GPU Ryzen 7 3700X 16threads Ryzen 7 3800X 16 threads Ryzen 9 3900X 24threads Home i7 3540M 4threads50% [Edit 1 times, last edit by retsof at May 2, 2007 7:06:18 PM] |
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KLiK
Master Cruncher Croatia Joined: Nov 13, 2006 Post Count: 3108 Status: Offline Project Badges:
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so the BOINC is off for the P4 HT machines...
----------------------------------------and about that UD...i know that some people have been beta testing the UD, but why did they shut down - beats me?! so we might see soon the implementation of the new UD...but on my dual CPU i'll switch to BOINC! and about that single core with UD...that is not exactly correct! UD agent uses the WinXP MP 1.4 for multiprocessing...so the one proc would do a calculations (30-40%), the other will sort the data (10-15%)...that also works on P4 HT machines the same way! |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
My understanding is that the beta test over at grid.org never actually started. They talked a lot, and recruited beta testers - but absolutely nothing happened. Can any grid.org beta testers confirm this?
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Hi KLiK,
and about that single core with UD...that is not exactly correct! That is very interesting. It still means just running 1 application process (if I am understanding you correctly), but if it can divide up the work into separate threads, that does potentially allow hyperthreading to speed up the processing without impacting memory.Lawrence |
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Sekerob
Ace Cruncher Joined: Jul 24, 2005 Post Count: 20043 Status: Offline |
The agent was ´hobbled´ is I think the expression. Found one time a variable that allowed it to start a second process. Actually, it would start the same WU so you could crunch it twice and corrupt it royally and still collect the points.
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WCG
Please help to make the Forums an enjoyable experience for All! |
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KLiK
Master Cruncher Croatia Joined: Nov 13, 2006 Post Count: 3108 Status: Offline Project Badges:
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The agent was ´hobbled´ is I think the expression. Found one time a variable that allowed it to start a second process. Actually, it would start the same WU so you could crunch it twice and corrupt it royally and still collect the points. well that is why that program for 2UD agents on dual CPU is ilegal, by grid.org! but anyway...the P4 HT, they work only at 50% with UD agent...even though the throttle is set on 75% or 60%... |
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Sekerob
Ace Cruncher Joined: Jul 24, 2005 Post Count: 20043 Status: Offline |
.... but anyway...the P4 HT, they work only at 50% with UD agent...even though the throttle is set on 75% or 60%... strange.... my P4HT does 100% when i tell it to run 100%.... the Taskmanager gives miss-information.... 100% of 1 virtual core appears as 50%. If it says 100% in the Graphics screen at bottom, it is.
WCG
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