Message boards :
Number crunching :
Separate work for GPU and CPU?
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S@NL - eFMer - efmer.com/boinc Send message Joined: 7 Jun 99 Posts: 512 Credit: 148,746,305 RAC: 0 |
I've notices the CPU is not getting any work at all. I know the GPU gets work first. But I set a Buffer for 5 days, no CPU work, but the buffer is filled to 5 days. Next I dropped the buffer to 2 days. BOINC is requesting CPU work. Stayed there for a couple of days. The buffer fills to 2 days and stays there. Now I set the buffer back to 3 days and I immediately get new work. And a lot of it, of course all GPU. This happens with 7.0.28 and 7.0.31. At 2 days 64836 SETI@home 17-10-2012 09:03 Scheduler request completed: got 0 new tasks 64835 SETI@home 17-10-2012 09:03 Reporting 5 completed tasks, requesting new tasks for CPU 64834 SETI@home 17-10-2012 09:03 Sending scheduler request: Requested by user. 64874 SETI@home 17-10-2012 09:13 Scheduler request completed: got 42 new tasks 64873 SETI@home 17-10-2012 09:13 Requesting new tasks for CPU and NVIDIA 64872 SETI@home 17-10-2012 09:13 Sending scheduler request: Requested by user. 64977 SETI@home 17-10-2012 09:18 Scheduler request completed: got 72 new tasks 64972 SETI@home 17-10-2012 09:18 Reporting 3 completed tasks, requesting new tasks for CPU and NVIDIA 64971 SETI@home 17-10-2012 09:18 Sending scheduler request: To fetch work. TThrottle Control your temperatures. BoincTasks The best way to view BOINC. Anza Borrego Desert hiking. |
Raistmer Send message Joined: 16 Jun 01 Posts: 6325 Credit: 106,370,077 RAC: 121 |
And what do you see in message log? Does BOINC client asks for CPU work and doesn't get it or it doesn't ask for CPU work [What number of request in seconds]? SETI apps news We're not gonna fight them. We're gonna transcend them. |
S@NL - eFMer - efmer.com/boinc Send message Joined: 7 Jun 99 Posts: 512 Credit: 148,746,305 RAC: 0 |
And what do you see in message log? Does BOINC client asks for CPU work and doesn't get it or it doesn't ask for CPU work? As you can see, it asks for CPU work only. I was building an additional in BoincTasks. If GPU work > 2 day and CPU work < 0.5 day set buffer to 2 days. That's when I noticed the buffer staying on 2 days for a couple of days and no CPU work except for some AP work. TThrottle Control your temperatures. BoincTasks The best way to view BOINC. Anza Borrego Desert hiking. |
S@NL - eFMer - efmer.com/boinc Send message Joined: 7 Jun 99 Posts: 512 Credit: 148,746,305 RAC: 0 |
But I think I see what's going wrong. Maybe that is.... V7 reused Connect every Additional work buffer -> Minimum work buffer. Additional work buffer. So I set the Additional work buffer as in V6, but I probably have to use: Minimum work buffer in V7. TThrottle Control your temperatures. BoincTasks The best way to view BOINC. Anza Borrego Desert hiking. |
S@NL - eFMer - efmer.com/boinc Send message Joined: 7 Jun 99 Posts: 512 Credit: 148,746,305 RAC: 0 |
After correction that problem in BoincTasks, the results are still the same. No GPU work. After changing the buffer from 2 -> 3 I got way over 1000 WU in a singe hour. All GPU of course. Now at 3 days. 67320 SETI@home 17-10-2012 10:56 Scheduler request completed: got 0 new tasks 67319 SETI@home 17-10-2012 10:56 Reporting 1 completed tasks, requesting new tasks for CPU 67318 SETI@home 17-10-2012 10:56 Sending scheduler request: Requested by user. It is getting no CPU work. The 6.12.33 has plenty of CPU work and gets is regularly. TThrottle Control your temperatures. BoincTasks The best way to view BOINC. Anza Borrego Desert hiking. |
Slavac Send message Joined: 27 Apr 11 Posts: 1932 Credit: 17,952,639 RAC: 0 |
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Richard Haselgrove Send message Joined: 4 Jul 99 Posts: 14649 Credit: 200,643,578 RAC: 874 |
And set at least the <sched_op_debug> logging flag in cc_config.xml so that you can see exactly what's going on when work is requested/received. |
S@NL - eFMer - efmer.com/boinc Send message Joined: 7 Jun 99 Posts: 512 Credit: 148,746,305 RAC: 0 |
And set at least the <sched_op_debug> logging flag in cc_config.xml so that you can see exactly what's going on when work is requested/received. Done: 68079 SETI@home 17-10-2012 12:19 [sched_op] estimated total NVIDIA task duration: 7555 seconds 68078 SETI@home 17-10-2012 12:19 [sched_op] estimated total CPU task duration: 0 seconds 68077 SETI@home 17-10-2012 12:19 Project requested delay of 303 seconds 68076 SETI@home 17-10-2012 12:19 [sched_op] Server version 701 68075 SETI@home 17-10-2012 12:19 Scheduler request completed: got 22 new tasks 68074 SETI@home 17-10-2012 12:18 [sched_op] NVIDIA work request: 6868.66 seconds; 0.00 devices 68073 SETI@home 17-10-2012 12:18 [sched_op] CPU work request: 2080512.00 seconds; 8.00 devices BOINC request work and gets GPU work just above the value needed. Gets 7555 needed 6868. But there I expect it goes wrong. 687 is 76 for GPU to handle. So it gets just about the GPU it needs and hoovers just below the threshold. Is should get at least number of GPU * scheduler interval. + something extra. 9 * 6 * 60 = 3240 it gets 687. I see this line: 68074 SETI@home 17-10-2012 12:18 [sched_op] NVIDIA work request: 6868.66 seconds; 0.00 devices Does it know how many GPU tasks are running ????? TThrottle Control your temperatures. BoincTasks The best way to view BOINC. Anza Borrego Desert hiking. |
Fred E. Send message Joined: 22 Jul 99 Posts: 768 Credit: 24,140,697 RAC: 0 |
I've noticed that 7.0.28 will keep asking for GPU work until it gets to about 1.25 days more than my min + additional setting, and even at that level it will ask for a few thousand seconds of GPU work. I use local preferences of 6 and .01. I don't get much CPU work until it gets to 7.25 days of GPU work per BOINCTasks' sum of estimated times. You can intervene and temporarily turn off GPU fetch in the SETI@Home project preferences (website). I have do this about once a week to rebalance the cache. Of course, that would affect all of your hosts unless you are using venues (home, school, etc). Does it know how many GPU tasks are running ?????It seems to respond when I change my count setting. Another Fred Support SETI@home when you search the Web with GoodSearch or shop online with GoodShop. |
S@NL - eFMer - efmer.com/boinc Send message Joined: 7 Jun 99 Posts: 512 Credit: 148,746,305 RAC: 0 |
I've noticed that 7.0.28 will keep asking for GPU work until it gets to about 1.25 days more than my min + additional setting, and even at that level it will ask for a few thousand seconds of GPU work. I use local preferences of 6 and .01. I don't get much CPU work until it gets to 7.25 days of GPU work per BOINCTasks' sum of estimated times. You can intervene and temporarily turn off GPU fetch in the SETI@Home project preferences (website). I have do this about once a week to rebalance the cache. Of course, that would affect all of your hosts unless you are using venues (home, school, etc). That's what I've been trying to automate. That's when you don't get any work at all. No CPU that way. But I expect you get no problems if you have one GPU. TThrottle Control your temperatures. BoincTasks The best way to view BOINC. Anza Borrego Desert hiking. |
Fred E. Send message Joined: 22 Jul 99 Posts: 768 Credit: 24,140,697 RAC: 0 |
I've noticed that 7.0.28 will keep asking for GPU work until it gets to about 1.25 days more than my min + additional setting, and even at that level it will ask for a few thousand seconds of GPU work. I use local preferences of 6 and .01. I don't get much CPU work until it gets to 7.25 days of GPU work per BOINCTasks' sum of estimated times. You can intervene and temporarily turn off GPU fetch in the SETI@Home project preferences (website). I have do this about once a week to rebalance the cache. Of course, that would affect all of your hosts unless you are using venues (home, school, etc). Agree my situation is simple with one host and one gpu. The project preference "use NVIDIA (or ATIa) gpu" only tells BOINC to not ask for gpu work. Turning it off will cause BOINC to only ask for cpu work. Definately not an automated approach - hope you find a better way. Another Fred Support SETI@home when you search the Web with GoodSearch or shop online with GoodShop. |
S@NL - eFMer - efmer.com/boinc Send message Joined: 7 Jun 99 Posts: 512 Credit: 148,746,305 RAC: 0 |
Agree my situation is simple with one host and one gpu. The project preference "use NVIDIA (or ATIa) gpu" only tells BOINC to not ask for gpu work. Turning it off will cause BOINC to only ask for cpu work. Definately not an automated approach - hope you find a better way. I tried to automate something like that. But even though the computer asks for CPU work it gets noting. Another computer that request in the same period, gets work ever single time. But just enough to keep the GPU buffer filled..... Probably there is something wrong with the BOINC scheduler. At least for computers with more GPU's TThrottle Control your temperatures. BoincTasks The best way to view BOINC. Anza Borrego Desert hiking. |
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