Dear Pasha, At first glance, it would appear that there is a further ConstraintMatrix::distribute_local_to_global <https://www.dealii.org/8.4.1/doxygen/deal.II/classConstraintMatrix.html#abb200737fa0b9b2803c8e46c93fb82f2> function designed with this in mind. It takes in the local_matrix but doesn't assemble it into a global_matrix, which is assumed to already be assembled.
Regards, Jean-Paul On Tuesday, January 17, 2017 at 9:30:35 AM UTC+1, dealii.gr...@gmail.com wrote: > > Dear all > > > I want to solve a linear system with two RHS, a same matrix and a same > constraints matrix. Since the code works in parallel, > *ConstraintMatrix::distribute_local_to_global* > <https://www.dealii.org/8.4.0/doxygen/deal.II/classConstraintMatrix.html#aa9f3612a8fc51eafa34252bb436e8ae4> > > is used to assemble the system matrix and RHS. > > Can I use *ConstraintMatrix::distribute_local_to_global* > <https://www.dealii.org/8.4.0/doxygen/deal.II/classConstraintMatrix.html#aa9f3612a8fc51eafa34252bb436e8ae4> > > to assemble the matrix and the first RHS; and then assembling the second > RHS separately and using the previous matrix created during the previous > assembly process to solve the system with second RHS? > > Is there a solver that can work with two RHS or I have to solve them > separately? > > > Best Regards, > > Pasha > -- 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. For more options, visit https://groups.google.com/d/optout.
