MC doesn't follow resource share |
Message boards : Number crunching : MC doesn't follow resource share
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Greetings. 11/19/2012 2:42:01 AM | | Processor: 4 AuthenticAMD AMD Phenom(tm) 9550 Quad-Core Processor [Family 16 Model 2 Stepping 3] | Processor: 512.00 KB cache Processor features: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 htt pni cx16 syscall nx lm svm sse4a osvw ibs page1gb rdtscp 3dnowext 3dnow OS: Microsoft Windows Vista: Home Premium x64 Edition, Service Pack 2, (06.00.6002.00) Memory: 5.75 GB physical, 11.62 GB virtual Disk: 583.02 GB total, 435.93 GB free It is a quad core. I have preferences set for three projects: 35% LHC 5% Malaria Control 60% World community grid BUT there are: TWO MC WUs One LHC WU Two WCG WUs MC consistently runs more WU than it should. Is this a BOINC problem - or an MC problem? Thank you!!!! Jay |
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ID: 20984 | Rating: 0 | rate: / | |
BOINC makes all of the work fetch and scheduling decisions Jay.
NVIDIA GeForce 9100 (256MB) driver: 30697
Over the long term BOINC 7 should be balancing host RACs according to the relative resource shares for the projects running on a computer. With MC having a 5% relative resource share it's likely that every time you download a task BOINC decides it has to be run at the earliest opportunity to meet its deadline (with 4 CPUs MC should be averaging 4 or 5 hours run time per day assuming the projects grant credit at a similar rate). One complication is any tasks which have to wait for validation; they could result in RAC fluctuation which is outside the control of BOINC's work fetch and scheduling. If you have a large number of MC tasks pending validation the project's RAC will be suppressed and you might get more tasks than expected. When those tasks are validated there will be a RAC boost and you might not get any MC tasks for a while. ____________ "The ultimate test of a moral society is the kind of world that it leaves to its children." - Dietrich Bonhoeffer |
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ID: 20986 | Rating: 0 | rate: / | |
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ID: 20987 | Rating: 0 | rate: / | |
As Thyme said Boinc is about the LONG TERM not the short term, so YES absolutely you will see your pc crunch tons of this or that project but over the next month or so you will see your percentage ratios even out. There is a project called Climate Prediction, it has workunits that can take as long as TWO YEARS to finish, can you imagine Boinc trying to keep it at a 5% ratio, or a 25% ratio, when ONE unit can take two years to finish! Boinc is like an operating system, lots of things happen under the surface and Boinc tries to manage them all, it does some things very well, others things it could use some work on. Personally I would like to be able to tell Boinc to use 1 cpu for this project, another for that project etc, etc. That may NEVER happen, or it could be done tomorrow. The Boinc programmers are based in Berkeley and led by a Dr. David Anderson of Seti. He created Boinc and got the first grant to run it, the rest as they say 'is history'. He is STILL the main programmer but now has a team of people helping him. There is a Boinc Mailing List that you can subscribe to, but be warned that if you criticize the software they will stop replying to you. It is best to read it for awhile before asking anything. |
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ID: 20992 | Rating: 0 | rate: / | |
Mikey, |
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ID: 21093 | Rating: 0 | rate: / | |
Mikey, I too have tried to run LHC but it does seem to run out of units fairly often! At first I thought it was just me, I have over 30 cpu's I can bring, but now I don't think so! |
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ID: 21096 | Rating: 0 | rate: / | |
Personally I would like to be able to tell Boinc to use 1 cpu for this project, another for that project etc, etc. That may NEVER happen, or it could be done tomorrow. Tomorrow it is then. ;-) http://boinc.berkeley.edu/trac/wiki/ClientAppConfig is something that will be coming in the next 7.0 client. ____________ Jord. BOINC FAQ Service |
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ID: 21111 | Rating: 0 | rate: / | |
Personally I would like to be able to tell Boinc to use 1 cpu for this project, another for that project etc, etc. That may NEVER happen, or it could be done tomorrow. Oh NOW THAT would be sooooo cool!!!! Thanks Jord!!!!!!!!!!!!!!!!!!!! |
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ID: 21113 | Rating: 0 | rate: / | |
Message boards : Number crunching : MC doesn't follow resource share