Re: [deal.II] ABOUT OPERATING PETScWrappers::MPI::SparseMatrix
Thank you very much. Best, Xiang On Sunday, August 30, 2020 at 2:40:14 PM UTC-7 Wolfgang Bangerth wrote: > On 8/30/20 12:20 AM, xs...@berkeley.edu wrote: > > Hi, I declared two same scale matrix A and B using > > PETScWrappers::MPI::SparseMatrix and assign values on these two > matrixes. I > > want to do some operation on them to get another matrix C which equals > h*A+B. > > How should I get the matrix C? Thank you very much. > > This should work: > > C = B; > C.add (h, A); > > Best > W. > > -- > > Wolfgang Bangerth email: bang...@colostate.edu > www: http://www.math.colostate.edu/~bangerth/ > > -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to dealii+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/dealii/3be5-c161-4429-a90c-07c182062ae5n%40googlegroups.com.
Re: [deal.II] ABOUT OPERATING PETScWrappers::MPI::SparseMatrix
On 8/30/20 12:20 AM, xs...@berkeley.edu wrote: Hi, I declared two same scale matrix A and B using PETScWrappers::MPI::SparseMatrix and assign values on these two matrixes. I want to do some operation on them to get another matrix C which equals h*A+B. How should I get the matrix C? Thank you very much. This should work: C = B; C.add (h, A); Best W. -- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.math.colostate.edu/~bangerth/ -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to dealii+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/dealii/b049bd31-33fa-416a-9fbf-0a2a85353788%40colostate.edu.
[deal.II] ABOUT OPERATING PETScWrappers::MPI::SparseMatrix
Hi, I declared two same scale matrix A and B using PETScWrappers::MPI::SparseMatrix and assign values on these two matrixes. I want to do some operation on them to get another matrix C which equals h*A+B. How should I get the matrix C? Thank you very much. Xiang -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to dealii+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/dealii/95590c06-e628-4361-ad59-7adbe62b99b3n%40googlegroups.com.
