Check the following: http://www.mcs.anl.gov/petsc/petsc-as/snapshots/petsc-current/docs/manualpages/Mat/MatCreateSeqAIJWithArrays.html http://www.mcs.anl.gov/petsc/petsc-as/snapshots/petsc-current/docs/manualpages/Mat/MatCreateMPIAIJWithArrays.html
Satish On Mon, 22 Jun 2009, Megan Lewis wrote: > Hi, > I know PETSc stores their matrices in CRS format. I have the 3 arrays > required for CRS format as pointers (two int pointers and one double > pointer). Instead of allocating the memory and running through all of > the non-zero elements in the matrix, is there any way to create a > matrix in PETSc by passing in the 3 arrays? > > Thanks! >
