The list archive has helped me puzzle the problem out of why Amber always thinks the instance ID of any GPU is 0. However it would be nice for users to know the actual instance ID so they can monitor utilization % while their programs are running.
That can be done by setting CUDA_VISIBLE_DEVICES inside the wrapper, and just before the program starts echo to STDOUT the actual instance ID. I have done that with Lava/Amber12 and it is document here:
https://dokuwiki.wesleyan.edu/doku.php?id=cluster:119
At the start of the STDOUT report users may now observe nodeName:gpuID
GPU allocation instance n36:2
-Henk
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Received on Thu Aug 15 2013 - 12:00:03 PDT
