[GitHub] feevos commented on issue #2910: Helper function to get GPU device number?

[GitBox <gi...@apache.org>]

feevos commented on issue #2910: Helper function to get GPU device number?
URL: https://github.com/apache/incubator-mxnet/issues/2910#issuecomment-372536394
 
 
   @kenfehling  I get the same error when I run this command on my laptop (single GPU) but not on the HPC cluster. Somehow the key  ```'CUDA_VISIBLE_DEVICES'``` in the ```os.environ``` dictionary is missing from my laptop. 
   
   When I use (CSIRO - BRACEWELL HPC facility - 4 GPUs per Node) ```os.environ["CUDA_VISIBLE_DEVICES"]``` I get ```'0,1,2,3'```

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