Message boards :
Number crunching :
Weird one
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Author | Message |
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Send message Joined: 7 Nov 07 Posts: 25 Credit: 103,589,066 RAC: 9,759 |
This task took almost 10 hours to complete (GPU). Screwed up the completion time for all the rest of the tasks. ps_s222_opt_1_v01_623806_1265035969 Is there checkpointing in the GPU application? Work unit id - 40922146 Task ID - 43028238 Using BOINC Version 6.6.38 on Core i7, Windows 7, GTX 260 Core 216 (I know the version is old, but I'm running AQUA and there are still problems with the 'official' version of BOINC and AQUA.) |
Send message Joined: 12 Apr 08 Posts: 621 Credit: 161,934,067 RAC: 0 |
Double check the task, I just got one, well two actually, that were issued to the CPU even though my preferences are set to only use GPU ... and sure enough, took about 11 hours to complete... |
Send message Joined: 7 Nov 07 Posts: 25 Credit: 103,589,066 RAC: 9,759 |
Hi Paul, No, it ran on the GPU. Just saw the same thing happening again. The task suspended at about 71% complete, and another started. I suspended all remaining Milkway tasks to force the recently suspended task to run, and sure enough, it reset to 0% complete and started over again, except the elapsed time continued from where it left off. I haven't seen this happen before, but it sure will cut into the RAC if it continues :) |
Send message Joined: 7 Nov 07 Posts: 25 Credit: 103,589,066 RAC: 9,759 |
Verified. Tasks are not saving their state when being swapped. Always restart from 0 if not running to completion. |
Send message Joined: 12 Apr 08 Posts: 621 Credit: 161,934,067 RAC: 0 |
Ah ... :) Ok, no checkpointing? Well, with 1 to 10 minute run times on my systems (GPUs only), I had not seen this issue. You *MAY* be seeing the prioritization bug that Richard Haslegrove, me and others have been trying to get them to look at and fix. So far there have been two fixes tried with the first one being a complete failure and the second, well, the jury is still out on that one (version 6.10.32). |
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