Module « scipy.sparse.linalg »

Fonction use_solver - module scipy.sparse.linalg

Signature de la fonction use_solver

def use_solver(**kwargs) 

Description

use_solver.__doc__

    Select default sparse direct solver to be used.

    Parameters
    ----------
    useUmfpack : bool, optional
        Use UMFPACK over SuperLU. Has effect only if scikits.umfpack is
        installed. Default: True
    assumeSortedIndices : bool, optional
        Allow UMFPACK to skip the step of sorting indices for a CSR/CSC matrix.
        Has effect only if useUmfpack is True and scikits.umfpack is installed.
        Default: False

    Notes
    -----
    The default sparse solver is umfpack when available
    (scikits.umfpack is installed). This can be changed by passing
    useUmfpack = False, which then causes the always present SuperLU
    based solver to be used.

    Umfpack requires a CSR/CSC matrix to have sorted column/row indices. If
    sure that the matrix fulfills this, pass ``assumeSortedIndices=True``
    to gain some speed.