[petsc-users] chelosky vs multigrid
Fazlul Huq
huq2090 at gmail.com
Mon Dec 3 21:00:13 CST 2018
Hello PETSc Developers,
I am trying to solve a poisson equation using "-pc_type cholesky" and
"-pc_type hypre -pc_hypre_type boomeramg" and I got that cholesky
decomposition method takes
less time then multigrid method.
Is this expected? I thought that multigrid method solve faster than
cholesky decomposition method.
Thanks.
Sincerely,
Huq
--
Fazlul Huq
Graduate Research Assistant
Department of Nuclear, Plasma & Radiological Engineering (NPRE)
University of Illinois at Urbana-Champaign (UIUC)
E-mail: huq2090 at gmail.com
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