[petsc-users] reuse Mumps factorization for multiple RHS

[Anthony Paul Haas]

Hello,

When using Mumps to solve a linear system of equations (see below), can I
reuse the factorization to solve for multiple RHS, ie, can I use
KSPSolve multiple
times while only building a different RHS in between the calls to KSPSolve?

Thanks,

Anthony

call KSPSetType(self%ksp,KSPPREONLY,self%ierr_ps)

call KSPGetPC(self%ksp,pc,self%ierr_ps)





call PCSetType(pc,PCLU,self%ierr_ps)





call PCFactorSetMatSolverPackage(pc,MATSOLVERMUMPS,self%ierr_ps)

call PCFactorSetUpMatSolverPackage(pc,self%ierr_ps)
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