Re: [petsc-users] MUMPS Error 'INFOG(1)=-3 INFO(2)=3' (SPARSE MATRIX INVERSE)

MUMPS errors are documented in section 8 of https://mumps-solver.org/doc/userguide_5.6.1.pdf Thanks, Pierre > On 27 Jul 2023, at 3:50 PM, maitri ksh wrote: > > I am using 'MatMumpsGetInverse()' to get the inverse of a sparse matrix. I am > using parts of ex214.c >

[petsc-users] MUMPS Error 'INFOG(1)=-3 INFO(2)=3' (SPARSE MATRIX INVERSE)

I am using 'MatMumpsGetInverse()' to get the inverse of a sparse matrix. I am using parts of ex214.c code to get the inverse, but I get an error that seems to be coming from

Re: [petsc-users] [petsc-maint] Monolithic AMG with fieldsplit as smoother

I would not worry about the null space (if you have elasticity or the equivalent use hypre for now) and the strength of connections, is not very useful in my experience (it is confounded my high order and no one has bothered to deploy a fancy strength of connections method in a library that I know