Questions and Answers :
Windows :
only GPU calculates units, not multicore CPU
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Gregory Wahl Send message Joined: 31 May 99 Posts: 2 Credit: 11,144,485 RAC: 0 |
hi, I have seen similar threads, but no satisfying answer. This started happening a couple of months ago with no configuration changes made. For some reason, my i5 quad core will stop computing, but the Nvidia GPU always continues. I have checked many times the configuration, and everything is wide open, use 100% of every core 100% of the time. No memory or hd restrictions. Then for unknown reasons the i5 will start computing, often for several days before suddenly stopping for between several days to a week, before starting again. During the i5 inactive period there are dozens of 'ready to start' wu in my local que. Any idea as to what is causing this. Thanks. |
Gundolf Jahn Send message Joined: 19 Sep 00 Posts: 3184 Credit: 446,358 RAC: 0 |
During the i5 inactive period there are dozens of 'ready to start' wu in my local queue. Any idea as to what is causing this. Probably all those WUs are designed to run on the GPU. Lower your cache settings until only CPU tasks are requested because there already are enough GPU tasks downloaded. Gruß, Gundolf Computer sind nicht alles im Leben. (Kleiner Scherz) SETI@home classic workunits 3,758 SETI@home classic CPU time 66,520 hours |
rob smith Send message Joined: 7 Mar 03 Posts: 22160 Credit: 416,307,556 RAC: 380 |
BOINC will always load the most capable processor first. A point of clarification, all work-units are created equal, however not every processor is capable, or permitted, to receive particular types of work At the time of distribution the server checks to see if the requesting processor is allowed to process the work and if it is, then the work unit is sent; if it isn't then either another work unit of a different type is selected for dispatch, or if there are no suitable work units you get the "no work available" message. Bob Smith Member of Seti PIPPS (Pluto is a Planet Protest Society) Somewhere in the (un)known Universe? |
Gregory Wahl Send message Joined: 31 May 99 Posts: 2 Credit: 11,144,485 RAC: 0 |
thanks for both responses. When I expand the Application tab to show everything that was previously truncated, I now see where the WU for the GPU is defined as a cuda unit. I didn't know that there were 2 types of WUs. I modified my buffer and it seems to be more balanced now between both types of WU instead of mostly GPU WUs. Thanks again. |
rob smith Send message Joined: 7 Mar 03 Posts: 22160 Credit: 416,307,556 RAC: 380 |
You cannot modify your buffer in the way you have described - work is allocated by the servers preferentially to the GPU. Bob Smith Member of Seti PIPPS (Pluto is a Planet Protest Society) Somewhere in the (un)known Universe? |
John McLeod VII Send message Joined: 15 Jul 99 Posts: 24806 Credit: 790,712 RAC: 0 |
You cannot modify your buffer in the way you have described - work is allocated by the servers preferentially to the GPU. If you shrink your buffer, it may start giving you tasks for the under utilized processor. BOINC WIKI |
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