Developer Reference for Intel® oneAPI Math Kernel Library - C
Solving Systems of Linear Equations: ScaLAPACK
This section describes the ScaLAPACK routines for
solving systems of linear equations. Before calling most of these routines, you
need to factorize the matrix of your system of equations (see
Routines for Matrix
Factorization in this chapter). However, the factorization is not
necessary if your system of equations has a triangular matrix.