[Trilinos-Users] How to change the row map of EpetraCrs matrix to achieve load balance ?

[Williams, Alan B]

You would need to set up an importer and import your initial matrix into a matrix with the desired row-map.
See the doxygen documentation for information about the Epetra_Import class.
Alan


From: trilinos-users-bounces at software.sandia.gov [mailto:trilinos-users-bounces at software.sandia.gov] On Behalf Of Davood Ansari
Sent: Sunday, April 03, 2011 1:13 AM
To: trilinos-users at software.sandia.gov
Subject: [Trilinos-Users] How to change the row map of EpetraCrs matrix to achieve load balance ?

Dear all

I have the following problem and I wonder if there is an easy solution to it.
I would really appreciate your comments  and advice.

I assemble a Epetra crs matrix in parallel. The assembly is based on some FEM sun-domains
and since they have very different sizes the resulting matrix is load imbalanced.
Is there an easy way to change the row map of the matrix to balance the load after I am finished
with the assembly ?

Thankfully
Davood
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