Getting new 2 NVIDIA system to take two jobs simultaneously

mhhall21207
mhhall21207
Joined: 27 Jun 10
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Topic 197631

It seems that when my new Win 8 laptop with two NVIDIA GPUs works on Einstein tasks, it only will run one job involving a GPU. Is there a setting required to allow the system to use both GPU (therefore run two GPU type jobs), or is system now using both GPU under cuda6.0 software (which I haven't seen other projects try to utilize).

Logforme
Logforme
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Getting new 2 NVIDIA system to take two jobs simultaneously

Have you reserved CPU cores for the GPU jobs?
GPU jobs need 0.5 - 1 CPU in order to run. If you want to run 2 GPU jobs you need 1 - 2 cores reserved. Try setting "On multiprocessor systems use at most ..." to 80% (or even less) in your computing preferences.

Alex
Alex
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RE: It seems that when my

Quote:
It seems that when my new Win 8 laptop with two NVIDIA GPUs works on Einstein tasks, it only will run one job involving a GPU. Is there a setting required to allow the system to use both GPU (therefore run two GPU type jobs), or is system now using both GPU under cuda6.0 software (which I haven't seen other projects try to utilize).

First of all: which laptop has two gpu's on board? A quite unusual configuration, but a big step forward for crunchers !

Second: Some (if not all) versions of BM use by default only the first logical gpu. Others may need a cc_config.xlm with the argument use_all_gpu's set to 1.

If this is your problem, you can easily find the complete instructions when you use the search function.

mhhall21207
mhhall21207
Joined: 27 Jun 10
Posts: 3
Credit: 9699493
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System is Lenovo Y510. When

System is Lenovo Y510. When I originally tried to order, it had a second GPU (Nvidia 755M) available as an option, and seems to replace the slot that would
be DVD writer. Also seems to work as a great hand warmer (output from second
GPU is on right side of unit where you'd put a mouse (to right of keyboard). :-)

mhhall21207
mhhall21207
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Posts: 3
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OK, retried after checking

OK, retried after checking settings here, and suspended the "other project" that I've been letting use the CPU resources. Until I stopped the process using CPU, I'm guessing that BOINC didn't say .... I have an idle GPU, ... it really ought to get priority to have a CPU. Seems to be working on both GPU now.

mikey
mikey
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RE: OK, retried after

Quote:
OK, retried after checking settings here, and suspended the "other project" that I've been letting use the CPU resources. Until I stopped the process using CPU, I'm guessing that BOINC didn't say .... I have an idle GPU, ... it really ought to get priority to have a CPU. Seems to be working on both GPU now.

One of the things the Boinc Programmers are working on is defining each crunching thing as it's own device, currently things are 'grouped' into clusters, so if you have two gpu's the Server knows you have two, but the Boinc software says 'oh you have a gpu that can crunch', NOT 'oh you have two gpu's that can crunch'. It is an evolution of the Boinc software as we crunchers push the envelope.

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