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Re: [Question #678152]: how can i use gpu in the part of contact detection

To: yade-users@xxxxxxxxxxxxxxxxxxx
From: Robert Caulk <question678152@xxxxxxxxxxxxxxxxxxxxx>
Date: Mon, 28 Jan 2019 10:49:57 -0000
Reply-to: question678152@xxxxxxxxxxxxxxxxxxxxx
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Question #678152 on Yade changed:
https://answers.launchpad.net/yade/+question/678152

    Status: Open => Answered

Robert Caulk proposed the following answer:
Hello,

>> is there any way apply GPU in that part?

Currently there is no implementation of GPU in contact detection. You
are welcome to add it, but it will be time consuming and challenging. If
for some reason you really want to devote time to improving the DEM
performance, your effort will be much better spent by joining the yade-
mpi branch [1].

>> the docmentation yade provided said that GPU can only use in PFV(pore
finite volume), then what does PFV mean, why can PFV use GPU?

Pore Finite Volume is the scheme that Yade's FlowEngine uses to simulate
fluid flow and associated poroelasticity. It uses the GPU to assist with
the solution of Ax=b. There will someday be a paper available on this.

Cheers,

Robert

[1]https://github.com/bchareyre/yade-mpi

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