[petsc-users] MatAssemblyEnd taking too long

[Manav Bhatia]

> On Aug 19, 2020, at 8:06 PM, Manav Bhatia <bhatiamanav at gmail.com> wrote:
> 
>> Can you try running with -matstash_legacy?
> 
> Will do and report results shortly. 
> 


-ksp_type gmres -pc_type gamg -mat_block_size 3 -mg_levels_ksp_max_it 4 -ksp_monitor -ksp_converged_reason -ksp_view -matstash_legacy

Running with this option results in hanging of the processes in MatAssemblyEnd. Attached is a screenshot. 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20200819/2db49918/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Screen Shot 2020-08-19 at 8.13.06 PM.png
Type: image/png
Size: 904834 bytes
Desc: not available
URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20200819/2db49918/attachment-0001.png>