Message boards :
Number crunching :
Is there a possibility of some user control of MT
Message board moderation
Author | Message |
---|---|
Stanley A Bourdon Project donor Send message Joined: 12 Mar 05 Posts: 21 Credit: 76,965 RAC: 0 |
Hi Just upgraded memory and got a WU :) The multi-threading is causing what i hope is an unintended consequence. The GPU is unable to do work. Apparently the GPU work needs some amount of CPU time and when BURP takes all, 8 in my case, the GPU can not work. Is there a way to have BURP or BOINC use 1 less than all available cores, on multi-core machines, for any one task. This would leave a core available to let the GPU keep working. thank you ID: 48923 Details | Tasks StanleyABourdon home 0.08 841 7.0.28 GenuineIntel Intel(R) Core(TM) i7 CPU Q 720 @ 1.60GHz [Family 6 Model 30 Stepping 5] (8 processors) CAL Redwood (1024MB) driver: 1.4.1741 Microsoft Windows 7 Home Premium x64 Edition, Service Pack 1, (06.01.7601.00) Stanley ![]() ![]() Boinc Wikipedia - the FAQ in active change |
![]() Project donor Send message Joined: 11 Apr 05 Posts: 403 Credit: 2,189,214 RAC: 7 |
Is there a way to have BURP or BOINC use 1 less than all available cores, on multi-core machines, for any one task. This would leave a core available to let the GPU keep working. Well, I don't know if this works for the GPU but you can try to lower the multicore-setting in your BOINC client configuration. I guess you are using a GPU-project that needs "a lot" of CPU-power like DistrRTGen or POEM, they need almost a complete core and therefore can't run, when BURP is rendering. I know that problem also. Another possibility: use a GPU project what doesn't need much CPU-power (Collatz, PrimeGrid etc.), they can run with BURP. Life is Science, and Science rules. To the universe and beyond Proud member of BOINC@Heidelberg My BOINC-Stats ![]() |
Stanley A Bourdon Project donor Send message Joined: 12 Mar 05 Posts: 21 Credit: 76,965 RAC: 0 |
Hi tried running Collatz and no joy. Collatz will run with all 8 cores working on single projects but not with BURP using all 8. yes there is a workaround playing with the configurations but as described it takes a lot of fiddling and seams prone to errors, problems in timing. and just to add to the frustration had a power problem and the unit went back to 0% after being over 80% thank you Stanley ![]() ![]() Boinc Wikipedia - the FAQ in active change |
![]() Project donor Send message Joined: 11 Apr 05 Posts: 403 Credit: 2,189,214 RAC: 7 |
Collatz will run with all 8 cores working on single projects but not with BURP using all 8. Does that mean 8 CPU-cores or 8 GPU-cores on Collatz? If you have an app_info.xml for Collatz to crunch more units at once for the GPU, I assume it sums up with CPU-usage, don't know, but Collatz is supposed to be one of the projects with the lowest CPU-consumption, it should work theoretically. Either way, I checked your comps and found out that you are using Intel-CPU and an ATI-card, correct? No idea if this constellation can run BURP and GPU-projects with less CPU-usage, I have no experience with Intel and ATI, sorry. I use two AMDs with NVidia GTX 560s and I have no problem with running BURP and GPU-projects with less CPU-usage. Life is Science, and Science rules. To the universe and beyond Proud member of BOINC@Heidelberg My BOINC-Stats ![]() |
Stanley A Bourdon Project donor Send message Joined: 12 Mar 05 Posts: 21 Credit: 76,965 RAC: 0 |
Hi 8 cpu cores, i7 4 cores hyper threaded for 8 functional cores. 1 ATI GPU currently a Collatz running with 8 single thread units and 2 non cpu intensives, freehal and wuprop. just got BURP to start and when it did Collatz stopped. thank you Sb |
![]() Volunteer moderator Project administrator ![]() Send message Joined: 16 Jun 04 Posts: 4574 Credit: 2,100,463 RAC: 8 |
Hm, that's odd - I seem to be able to run BURP on 8 cores along with 4 Einstein GPU WUs simultaneously. Maybe it has to do with the BOINC version? I'm still on version 6 |
Stanley A Bourdon Project donor Send message Joined: 12 Mar 05 Posts: 21 Credit: 76,965 RAC: 0 |
Hi 7.0.28 it may be a version problem . do not want to change anything as i lost this unit once to a power problem. this was suggested in a thread on the main boinc message board "It probably depends which version of BOINC you are using - you did remember to tell us that, didn't you? There was a bug, introduced around v7.0.22 (while fixing another bug) and corrected in v7.0.31. It had the sort of effect you are describing." is there a way to have the MT applications use one less than the max available in my case 7? thank you Stanley ![]() ![]() Boinc Wikipedia - the FAQ in active change |