I guess it's resuming at the last checkpoint.

There's another setting for this: "leave apps in memory while suspended". Activating this in your BOINC prefs should eleminate this loss. And set your tiem to resume after suspending to a few minutes. Restarting/resuming too often may crash the driver (I had this happen running PrimeGrid, not sure about GPU-Grid).

MrS

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Scanning for our furry friends since Jan 2002

I guess it's resuming at the last checkpoint.

There's another setting for this: "leave apps in memory while suspended". Activating this in your BOINC prefs should eleminate this loss. And set your tiem to resume after suspending to a few minutes. Restarting/resuming too often may crash the driver (I had this happen running PrimeGrid, not sure about GPU-Grid).

MrS

"Leave applications in memory" has (deliberately and by design) no effect for GPU applications. Most consumer GPU cards (perhaps you might come to a different answer for the newer high-power cards people choose here) don't have enough VRAM to be able to hold a whole set of tasks in memory, and to keep them there while a whole different project is switched in for processing. And there's no operating system support for a pagefile or virtual memory, such as has been used to support the over-commitment of main system RAM for many decades.

Thanks Richard, I didn't know this. Makes perfect sense now!

MrS

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Scanning for our furry friends since Jan 2002

I give you freely my GPU time, and the cost of the electricity to run it, because I believe in GPUGRID. What do you do in return? Send me WUs that make my PC unusable.

Unusable? How about 10 seconds to react to a click on the Start button? How about 18 seconds to open Task Manager? How about 11 seconds to go from one browser tab to another?

I have eight CPU processors, Windows 7 and six Megs of RAM, more than enough to give instantaneous response to any of these actions, under normal circumstances.

Problem? NATHAN WUs. My log of all WUs downloaded these past 30 days shows, for non-benHP NATHANs:

 69 received, of which:
 17 ran with no problems,
 5 ran but with performance problems,
 7 gave ‘error while computing’ and
 40 were aborted by me because they were killing my PC.

I can tell you the WU names of all the 69 received, by category.

A 25% success rate should be a concern for you. It certainly is for me! I have to nurse PC-crippling WUs. In the last hour I’ve aborted six. I signed up for hands-off background processing. That is not what’s happening!

I do hope you will work with me to get to the bottom on this misery…

Tom

Tom,

I think I have posted this before to you.

You cannot run a Nathan unit on a GTX460 and use your computer at the same time.

I have the same card and always uncheck the "Use GPU while computer in use" box for Nathan units, All other units can run fine with computer is in use.

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Now when I wiggle the mouse in BOINC / Tasks, the GPUGRID WU immediately gives "Waiting to run". Perfect!

Not quite perfect... When a WU resumes it backs-off a few percentage points of processing so it's repeating what it's already done.

I guess it's resuming at the last checkpoint. I've looked and looked for the parameter that lets me specify the checkpoint period but I can't find it!

Any ideas?

Tom

I've seen this many times before. I consider it normal behavior.

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