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Re: [Question #685647]: Problem in CHOLMOD test with GPU acceleration

To: yade-users@xxxxxxxxxxxxxxxxxxx
From: Chu <question685647@xxxxxxxxxxxxxxxxxxxxx>
Date: Wed, 06 Nov 2019 15:43:02 -0000
Reply-to: question685647@xxxxxxxxxxxxxxxxxxxxx
Sender: bounces@xxxxxxxxxxxxx

Question #685647 on Yade changed:
https://answers.launchpad.net/yade/+question/685647

    Status: Answered => Open

Chu is still having a problem:
Dear Robert,

Yes, you are absolutely right. I think I should get an old Tesla.

I execute the

export CHOLMOD_USE_GPU=1
./cholmod_l_demo < nd6k.mtx

but it doesn't seems better. I got

CHOLMOD GPU/CPU statistics:
SYRK  CPU calls          799 time   4.1375e+00
      GPU calls            0 time   0.0000e+00
GEMM  CPU calls          628 time   2.1853e+00
      GPU calls            0 time   0.0000e+00
POTRF CPU calls          172 time   1.9633e+00
      GPU calls            0 time   0.0000e+00
TRSM  CPU calls          171 time   7.0233e-01
      GPU calls            0 time   0.0000e+00
time in the BLAS: CPU   8.9885e+00 GPU   0.0000e+00 total:   8.9885e+00
assembly time   0.0000e+00    0.0000e+00

Maybe it is useless that compile Yade with GPU acceleration now. But I'd
like to figure out the process.

Appreciate for your help.

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