I have a PC with two PCIe slots and a Nvidia GTX280 in each one. I have a two cores CPU, so I can crunch two WUs at at time in GPUGRID. The problem is that I'm not getting enough WU to be crunching continuosly. I can do 7 WUs a day in total, which is less than my 8 WUs a day limit. But I NEVER has any WU waiting to be crunched (in adition to those being crunched) and, STILL MORE, now I'm without any unit at all, with two GPUs doing NOTHING.

What can I do?

Is the project running short of units?

Other kind of BOINC projects that I'm running, have many WUs waiting to be processed.

Once we have a stable new BOINC release and all the other client changes, which are already in the pipeline, it is hopefully on the developers list to change this policy to something like "at least 2 concurrent WUs per CUDA device".

MrS

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Scanning for our furry friends since Jan 2002

For the time being I will increase the limit from 8 to 10.

gdf

I think he's running into the limit of 1 concurrent WU per CPU, not the overall quota (but increasing it to 10 is not a bad idea anyway). So with 2 cores and 2 GPUs he can't have a cache and gets idle time as soon as the WU-transfer and scheduler contact take some time.

MrS

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Scanning for our furry friends since Jan 2002

I think he's running into the limit of 1 concurrent WU per CPU, not the overall quota (but increasing it to 10 is not a bad idea anyway). So with 2 cores and 2 GPUs he can't have a cache and gets idle time as soon as the WU-transfer and scheduler contact take some time.

MrS

Yes, but the problem is that my PC remains more than two hours idle waiting for more WUs. Then I transfer it to FOLDING and try GPUGRID some more hours later.

Until "at least 2 concurrent WUs per CUDA device" get into scene, I have one GPU crunching for GPUGRID while the other one is crunching for FOLDING.

Seems like the best solution for you for now. Do you know how to teach BOINc to use only 1 of 2 GPUs?

MrS

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Scanning for our furry friends since Jan 2002

We are looking for solutions of this problem.

gdf

Similar prob over here: running two 9800 GX2 = 4 GPUs (and today was the first day they ran without errors)...and there are no WUs waiting...

Do you know how to teach BOINc to use only 1 of 2 GPUs?

MrS

No. I have put a 1 core limit to the client, which is automatically used by GPUGRID to run one GPU. The handicap is that I have the other core doing only FOLDING, which means 80% of it useless. I have intented to limit the cores to 1 using the GPUGRID web configuration, so the other one can be used by other BOINC projects, but it doesn't work (really it is default configuration).

I upgraded to version .14 and the problem with scheduling is worst now. I have been more than 24 hours crunching only one WU (one GPU crunching and one GPU doing nothing). Now my two GPUs are idle. It has spent more than 5 hours and there is no WU to crunch. Theoretically this PC can do more than 7 WUs a day if it would be fed constanly.

Why are you not getting new WUs? Your host sems to be this one, which has a daily quota of 10 (the maximum). Is BOINC not requesting new work or is the scheduler denying them?

MrS

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Scanning for our furry friends since Jan 2002

Why are you not getting new WUs? Your host sems to be this one, which has a daily quota of 10 (the maximum). Is BOINC not requesting new work or is the scheduler denying them?

MrS

Yes, the PC is that one. I'm getting WUs, but at a "slow pace". I have received in the meanwhile (since I wrote my last post) two more units after the computer has been almost 9 hours with both GPUs idle. Now it is crunching these both WUs, but dued to the "1 WU by CPU" limit, as I have a Intel 8500(two cores), I have not received more units and have no one "in reserve", so surely the problem will repeat when these WUs will be completed (I last 7 hours to process a WU). I don't understand those "9 hours" lag in download units.

When this happens to me, (hitting the 2 WU limit, which normaly only happens when the project is down) and my GPU goes idle I update the project once in the project tab. Then its immediatelly reporting the finished units and gets new ones...

What you could do is setting a task in the windows task planer (no idea how its really called), for the following command to be executed once each hour...

c:/path/to/your/boinc/boinccmd.exe --project http://www.ps3grid.net update

Its just a temporary solution until the projects hands out units based on the number of GPUs, not CPUs...

No, I tried it manually many times and the answer is "get 0 tasks". I only receive task when the scheduler wants...

Does BOINC ask for work if you click on the update button and you get the "got 0 tasks" answer from the server?

How does you resource share look like for PS3GRID and the other projects?
How have you set the options "connect to the internet every n days" and "maintain enough work for an additional n days"?

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No, I tried it manually many times and the answer is "get 0 tasks". I only receive task when the scheduler wants...

I've just had the same happen on my quad core.
I got around it by suspending the other active project (seti) and then PS3Grid immediately requested more work.

Does BOINC ask for work if you click on the update button and you get the "got 0 tasks" answer from the server?

How does you resource share look like for PS3GRID and the other projects?
How have you set the options "connect to the internet every n days" and "maintain enough work for an additional n days"?

a- Yes, as I said before, I get the "got 0 tasks"
b- 100% each project. I actually have 3x+1, but when the GPUs beguin to crunch, they stop (only two cores).
c- I left as default. Some time ago I set to 10 days the field in the field "maintain enough..." and the computer tried very many times to get WUs, but it always get this message from server (in two lines): "No work sent (reached per-cpu limit of 1 tasks)" and only get 2 Wus, no one appart from the ones being crunched.

No, I tried it manually many times and the answer is "get 0 tasks". I only receive task when the scheduler wants...

I've just had the same happen on my quad core.
I got around it by suspending the other active project (seti) and then PS3Grid immediately requested more work.

I'll try. I have 3x+1 project since the GPUs are so many time idle. If they are working, no other project can be executed, so it would be innecessary to have any other project besides GPUGRID.

I have just tried and YES, it has been to stop 3x`1 project and the client has tried to get WU inmediately, but it has get the "reached per-cpu limit...." (because I still have twuo units being processed). But at least it has tried to get WUs. So I'll leave stoped the other project and wait until I complete the running WUs... I'll report later.