Sparse BLAS Routines

Sparse Basic Linear Algebra Subprograms (BLAS) perform vector and matrix operations similar to BLAS Level 1, 2, and 3 routines. Sparse BLAS routines take advantage of vector and matrix sparsity: they allow you to store only non-zero elements of vectors and matrices. The Sparse BLAS package includes Fortran routines of three levels:

Level 1 (vector-vector operations)

Level 2 (matrix-vector operations)

Level 3 (matrix-matrix operations).