You can do a MatConvert() (requires another copy of the matrix) for the parts that benefit from BAIJ.
Barry > On Jan 20, 2015, at 4:33 PM, Chung-Kan Huang <[email protected]> wrote: > > Hi, > > Does PETSc provide means for conversion between AIJ & BAIJ. > > My matrix is created as AIJ because it makes life easy for most part of the > applications but some part of applications actually get some benefits with > BAIJ. So I wonder if a matrix can exist as two idenfities and I can use > either format depend on which one is more convenient at run time. > > So in my case the block size is fixed and identical for all blocks. > > > Thanks, > > > Kan
