[Trilinos-Users] [EXTERNAL] How to test scaling from a trilinos build
jhu at sandia.gov
Tue Mar 23 18:48:12 MST 2021
ML has a 2D Poisson driver in ml/examples/BasicExamples/ml_preconditioner.cpp. The cmake target should be either "ML_preconditioner" or "ML_preconditioner.exe". There's a really similar one in ml/examples/XML/ml_XML.cpp that you can drive with an XML deck. Is this what you're after?
On 3/23/21, 5:47 PM, "Trilinos-Users on behalf of John Cary" <trilinos-users-bounces at trilinos.org on behalf of cary at colorado.edu> wrote:
We are still using the old stack: ML, Epetra, ...
When we run a simple Poisson solve on our cluster (32 cores/node), we
see parallel efficiency drop to 4% on one node with 32 cores. So we
naturally believe we are doing something wrong.
Does trilinos come with a simple Poisson-solve executable that we could
use to test scaling (to get around the uncertainties of our use of
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