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Message #21191
Re: [Question #685647]: Problem in CHOLMOD test with GPU acceleration
Question #685647 on Yade changed:
https://answers.launchpad.net/yade/+question/685647
Status: Open => Answered
Robert Caulk proposed the following answer:
Ok, I will point out to you that the Quadro P1000 is useless for
scientific calculations since the double precision processing power is
weaker than your CPU. You need to look for cards with high dp processing
power such as Tesla, new quadros, Titan V, etc. if you wish to gain
performance from this acceleration technique.
And for the problem at hand:
It appears CUDA recognizes the card and CHOLMOD is compiled with GPU options as well as linked to CUDA libraries.
The next step is to make sure you are executing cholmod_l_demo properly.
Execute it manually with
export CHOLMOD_USE_GPU=1
./cholmod_l_demo < nd6k.mtx
Where nd6k.mtx is the matrix.
Cheers,
Robert
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