[petsc-users] SuperLU_dist issue in 3.7.4

[Hong]

Anton,
I pushed a fix
https://bitbucket.org/petsc/petsc/commits/28865de08051eb99557d70672c208e14da23c8b1
in branch hzhang/fix-superlu_dist-reuse-factornumeric.
Can you give it a try to see if it works?
I do not have an example which produces your problem.

In your email, you asked "Setting Options.Fact = DOFACT for all
factorizations is currently impossible via PETSc interface.
The user is expected to choose some kind of reuse model.
If you could add it, I (and other users probably too) would really
appreciate that."

We do not allow user set superlu' Options.Fact = DOFACT. If user changes
matrix structure, then user must call
KSPSetOperators() -> call symbolic matrix factorization again, in which we
set Options.Fact = DOFACT.

Hong
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