Chung-Kan Huang <[email protected]> writes: > Hi, > > Does PETSc provide means for conversion between AIJ & BAIJ.
Did you try MatConvert? > My matrix is created as AIJ because it makes life easy for most part of the > applications Why does the assembly code know what format it is assembling? All the same MatSetValues should work after MatSetType(A,MATBAIJ). > 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. Yes, it's idiomatic to set a prefix and call MatSetFromOptions, then use -yourprefix_mat_type baij at run-time.
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