[Trilinos-Users] Updating values in a Tpetra CRS matrix

Eric Marttila eric.marttila at thermoanalytics.com
Thu Aug 25 11:56:42 EDT 2016

I currently use an Epetra crs matrix in a newton-like solve where I am 
repeatedly changing matrix values (but not the structure) and 
performing linear solves.

I'm interested in switching to Tpetra for it's multithreading (OpenMP) 
support, but I see that the Tpetra documentation says that a CRS 
matrix can't be changed after fillComplete() without making a 
resumeFill() call and then another fillComplete() after changing 

Given that fillComplete() is expensive, is it feasible for me to use 
Tpetra in my use case?


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