Sparse Matrix Storage Formats for Sparse BLAS Routines

The current version of Intel® oneAPI Math Kernel Library Sparse BLAS Level 2 and Level 3 routines support the following point entry [Duff86] storage formats for sparse matrices:

• compressed sparse row format (CSR) and its variations;

• compressed sparse column format (CSC);

• coordinate format;

• diagonal format;

• skyline storage format;

and one block entry storage format:

• block sparse row format (BSR) and its variations.

For more information see "Sparse Matrix Storage Formats" in the Appendix"Linear Solvers Basics".

Intel® oneAPI Math Kernel Library provides auxiliary routines -matrix converters - that convert sparse matrix from one storage format to another.