Sparse BLAS Level 2 and Level 3 Routines
The Sparse BLAS Level 2 and Level 3 routines are deprecated. Use the corresponding routine from the Inspector-executor Sparse BLAS interface as indicated in the description for each routine.
Intel® oneAPI Math Kernel Library
Intel® oneAPI Math Kernel Library
This section describes Sparse BLAS Level 2 and Level 3 routines included in the . Sparse BLAS Level 2 is a group of routines and functions that perform operations between a sparse matrix and dense vectors. Sparse BLAS Level 3 is a group of routines and functions that perform operations between a sparse matrix and dense matrices.
Intel® oneAPI Math Kernel Library (oneMKL)
The terms and concepts required to understand the use of the Sparse BLAS Level 2 and Level 3 routines are discussed in theLinear Solvers Basics appendix.
Intel® oneAPI Math Kernel Library
The Sparse BLAS routines can be useful to implement iterative methods for solving large sparse systems of equations or eigenvalue problems. For example, these routines can be considered as building blocks for
Iterative Sparse Solvers based on Reverse Communication Interface (RCI ISS).
Intel® oneAPI Math Kernel Library
Some software packages and libraries (the
PARDISO* Solverused in , provides an additional set of Sparse BLAS Level 2 routines with similar simplified interfaces. Each of these routines operates only on a matrix of the fixed type.
Intel® oneAPI Math Kernel Library
Sparskit 2
[Saad94], the Compaq* Extended Math Library (CXML)[CXML01]) use different (early) variation of the compressed sparse row (CSR) format and support only Level 2 operations with simplified interfaces. Intel® oneAPI Math Kernel Library
The routines described in this section support both one-based indexing and zero-based indexing of the input data (see details in the section
One-based and Zero-based Indexing).