[petsc-users] reuse coarsening setup in hypre

[Smith, Barry F.]

> On Jun 13, 2018, at 3:29 PM, Xiangdong <epscodes at gmail.com> wrote:
> 
> Hello everyone,
> 
> If I solve a few matrices with same sparsity pattern by using hypre_boomeramg pc, can I reuse the coarsening setup information?

   I don't think so. The coarsening process etc depends not just on the nonzero pattern but also depends on the numerical values so changing the numerical values can change the coarsening process.

   Barry

> 
> Thank you.
> 
> Best,
> Xiangdong