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World Community Grid Forums
Category: Support
Forum: BOINC Agent Support
Thread: Multiprocessor but one project |
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Thread Status: Active Total posts in this thread: 8
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Hi all,
I've set up an 8-core CPU dedicated to WCG project work. This server is cloud-based and I am paying a subscription to run the server. However rather than running several projects simultaneously I would like to dedicate one project, just done x8 faster by splitting the workload across the cores. Can this be done? Can I get one 8 hr project completed in one hour? Can I therefore not waste processing time if my subscription at the end of the month runs out of credit and the server closes? Please let me know if this is possible, if so how to set this up. Best regards, Matthew Bennett Director - MBIT Training Ltd |
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ryan222h
Senior Cruncher Joined: Sep 4, 2006 Post Count: 425 Status: Offline |
"Project" refers to an entire project like FAAH or MCM.
----------------------------------------Work unit refers to a single chunk of work. You can set the CPU to run just one project but you can't have a multi-core cpu split a work unit unfortunately.  |
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Falconet
Master Cruncher Portugal Joined: Mar 9, 2009 Post Count: 3295 Status: Offline Project Badges: 
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Sorry, but at the moment, WCG has no multithreaded applications.
----------------------------------------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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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
But you can run 8 tasks on an 8 core machine, all at the same time!
Boinc will run on all available cores unless you have restricted it. Check your settings and post some detail if it doesn't run 8 tasks/work units at a time |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Boinc will run on all available cores unless you have restricted it. Check your settings and post some detail if it doesn't run 8 tasks/work units at a time That is not his problem. He wants to split one WU over the 8 cores so that it completes in one eighth of the time.....and he has been told he cannot do that  |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Boinc will run on all available cores unless you have restricted it. Check your settings and post some detail if it doesn't run 8 tasks/work units at a time That is not his problem. He wants to split one WU over the 8 cores so that it completes in one eighth of the time.....and he has been told he cannot do that Yep, but running 1 wu on 8 cores = 1/8th time, running 1 x 8 = the same result... 1 wu = 8 hours on 1 core or 1 hour on 8 cores, running for 8 hours would complete 8 wu's 8 wu's on 8 cores = 8 hours to complete 8 wu's End result the same. Many ways to skin a cat! |
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ryan222h
Senior Cruncher Joined: Sep 4, 2006 Post Count: 425 Status: Offline |
1 wu = 8 hours on 1 core or 1 hour on 8 cores, running for 8 hours would complete 8 wu's 8 wu's on 8 cores = 8 hours to complete 8 wu's End result the same. Many ways to skin a cat! Not exactly, what if you have only 7 hours of CPU time to work with? That leaves 8 workunits 90% finished (theoretically), which will be a total loss of a rented machine for that time period. He was attempting to minimize the "lost" compute time. |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
You have a point there Ryan...
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