petsc-3.14.5 2021-03-03
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# MATMPIBAIJ

MATMPIBAIJ = "mpibaij" - A matrix type to be used for distributed block sparse matrices.

### Options Database Keys

| -mat_type mpibaij | - sets the matrix type to "mpibaij" during a call to MatSetFromOptions()
| -mat_block_size <bs> | - set the blocksize used to store the matrix
| -mat_use_hash_table <fact>

### 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

### See Also

MatCreateBAIJ

### Level

beginner

### Location

src/mat/impls/baij/mpi/mpibaij.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages