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Re: [Starpu-devel] StarPU code hangs when using a lot of GPU memory


Chronologique Discussions 
  • From: Mirko Myllykoski <mirkom@cs.umu.se>
  • To: samuel.thibault@inria.fr
  • Cc: Starpu Devel <starpu-devel@lists.gforge.inria.fr>
  • Subject: Re: [Starpu-devel] StarPU code hangs when using a lot of GPU memory
  • Date: Fri, 01 Mar 2019 18:16:27 +0100
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Hi again,

On 2019-03-01 18:11, Mirko Myllykoski wrote:

The output of the macro was not very informative:

(gdb) starpu-memusage


Node 0:
Total used: 14, 364MiB
WT: 0, 0MiB
home: 0, 0MiB
redux: 0, 0MiB
relax: 10, 307MiB
noref: 10, 307MiB
nosubdataref: 2, 28MiB
nodataref: 2, 28MiB

cached: 0, 0MiB


Node 1:
Total used: 5815, 4493MiB
WT: 0, 0MiB
home: 0, 0MiB
redux: 0, 0MiB
relax: 0, 0MiB
noref: 0, 0MiB
nosubdataref: 0, 0MiB
nodataref: 0, 0MiB

cached: 0, 0MiB

I forgot to mention that it took between 10-15 seconds to print out the statistics for the Node 1. I also noticed that all CPU cores seem to stay idle after I executed the continue command (all threads are paused somehow).

- Mirko




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