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getrow and setrow operation in Matrix class are extremely slow

 

Hi!

Just a quick question, has there been any changes in the Matrix /PETScMatrix classes which could cause that these functions have gotten extremely slow?? I just had a quick run of my code copying an assembled matrix into a bigger block matrix and now it takes really ages, although it run quickly through without any remarkable time consumption last time (maybe 1 or 2 month ago). It went up from at most 1 sec or so to 1150 sec!!!


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Andre