Dear all, Would you mind giving us an update on your thoughts re: this question? We're very keen to be able to use such functionally and it would be good to know if you're looking into this / have any suggestions?
Best wishes, Rhodri --------------------------------------------------------------------------------------------------- Research Fellow Research School of Earth Sciences The Australian National University Canberra, ACT, 0200, Australia T: +61 (0)2 6125 3643 E: [email protected]<mailto:[email protected]> W: http://rses.anu.edu.au/people/dr-rhodri-davies --------------------------------------------------------------------------------------------------- Begin forwarded message: From: Stephan Kramer <[email protected]<mailto:[email protected]>> Subject: Fwd: [petsc-users] MatZeroRowsColumns for mpibaij Date: 31 October 2013 13:16:05 GMT+11:00 To: Rhodri Davies <[email protected]<mailto:[email protected]>> -------- Original Message -------- Subject: [petsc-users] MatZeroRowsColumns for mpibaij Date: Wed, 19 Jun 2013 13:22:31 +0100 From: Stephan Kramer <[email protected]<mailto:[email protected]>> To: PETSc users list <[email protected]<mailto:[email protected]>> Dear all, We have found the MatZeroRowsColumns() routine to be very useful for lifting boundary conditions. Unfortunately we also found that it isn't implemented for matrix type mpibaij and we're quite keen on keeping the baij structure as it seems to give us significant savings for DG problems (in particular the blocked sor). I had a quick look at the implementation of MatZeroRowsColums_MPIAIJ but couldn't really estimate how hard it would be to do something similar for mpibaij (an implementation for seqbaij exists already). Is this something that's likely to be looked at in the future? Stephan
