Dear petsc-users When I try to solve a linear equation Ax=b with BicgStab preconditioner, I got an error "Matrix is missing diagonal number". That is because I have zeros on the diagonal of the matrix.
I am wondering if there is some simple method to avoid that? Best, Liang -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20070813/a4ed0be3/attachment.htm>
