MATSEQBAIJ#

MATSEQBAIJ = “seqbaij” - A matrix type to be used for sequential block sparse matrices, based on block sparse compressed row format.

Options Database Keys#

  • -mat_type seqbaij - sets the matrix type to MATSEQBAIJ during a call to MatSetFromOptions()

  • -mat_baij_mult_version version - indicate the version of the matrix-vector product to use (0 often indicates using BLAS)

Notes#

MatSetOptions(,MAT_STRUCTURE_ONLY,PETSC_TRUE) may be called for this matrix type. In this no space is allocated for the nonzero entries and any entries passed with MatSetValues() are ignored

Run with -info to see what version of the matrix-vector product is being used

See Also#

Matrices, Mat, MatCreateSeqBAIJ()

Level#

beginner

Location#

src/mat/impls/baij/seq/baij.c

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