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Re: [Question #681146]: GS did not converge in 20k iterations

To: yade-users@xxxxxxxxxxxxxxxxxxx
From: Robert Caulk <question681146@xxxxxxxxxxxxxxxxxxxxx>
Date: Mon, 03 Jun 2019 13:37:22 -0000
Reply-to: question681146@xxxxxxxxxxxxxxxxxxxxx
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Question #681146 on Yade changed:
https://answers.launchpad.net/yade/+question/681146

    Status: Open => Needs information

Robert Caulk requested more information:
Please copy and paste your CMAKE output here please, it seems you
compiled without LINSOLV, which means you probably did not install the
necessary LINSOLV dependencies (libmetis, libcholmod, libsuitesparse
etc).

useSolver=3 and use solver 4 both use the same direct method (cholesky)
within CHOLMOD. The difference is that useSolver=3 uses the eigen
interface to the suitesparse library while useSolver 4 uses suitesparse
directly. useSolver=4 seems to work with multithreaded CPU so it should
be faster.

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