Manav, On Sun, 21 Sep 2008, Manav Bhatia wrote:
> Hi, > > I have an application in which I have multiple sparse matrices, > which together form one bigger matrix. For example: if S1, S2, S3, S4 > and S5 are my sparse matrices, I need to create a matrix B of the > following form > > B = 3 x 3 blocks > > row 1 of B = 0, S1, 0 > row 2 of B = S2, 0 , S3 > row 3 of B = S4, S5, 0 > > If I build the S1... S5 independently, is there a way for me to > directly embed these matrices into B without having to explicitly copy > the values from each matrix? No, we do not have this function. You can use MatSetValues() http://www-unix.mcs.anl.gov/petsc/petsc-as/snapshots/petsc-current/docs/manualpages/Mat/MatSetValues.html to insert a block of values. Hong > I would appreciate any help. Please also, let me know if there is an > example code somewhere about this. > > Regards, > Manav > > > >
