subject:"\[petsc\-users\] Inverse of a Large Sparse Matrix"

Re: [petsc-users] Inverse of a Large Sparse Matrix

2023-07-26 Thread Matthew Knepley

On Wed, Jul 26, 2023 at 8:13 AM maitri ksh wrote: > I have a large sparse matrix (48x48) and I need to take its > inverse and use it to solve an eigenvalue problem. According to > petsc-archive > , > Bar

[petsc-users] Inverse of a Large Sparse Matrix

2023-07-26 Thread maitri ksh

I have a large sparse matrix (48x48) and I need to take its inverse and use it to solve an eigenvalue problem. According to petsc-archive , Barry suggested using superLU with MatMatSolve() (& not KSPsolve