[petsc-dev] no petsc on Edison

[Stefano Zampini]

Mark,

I saw your configuration has hypre. If you could run with master, you may try -matptap_via hypre.
It uses BoomerAMGBuildCoarseOperator directly with the AIJ matrices.

Stefano

> On Feb 2, 2017, at 7:28 PM, Mark Adams <mfadams at lbl.gov> wrote:
> 
> 
> 
> On Thu, Feb 2, 2017 at 11:13 AM, Hong <hzhang at mcs.anl.gov <mailto:hzhang at mcs.anl.gov>> wrote:
> Mark:
> Try '-matmatmult_via scalable' first. If this works, should we set it as default?
> 
> If it is robust I would say yes unless it is noticeably slower (say >20%) small scale problems. 
> 

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