Python PETScKrylovSolver.preconditioners Examples

Example #1

File: linalg.py Project: minasel/EQporoelasticity

def amg_method():
    """
    Determine which AMG preconditioner to use.
    If avaialable use ML, which is faster than the PETSc one.
    """
    S = PETScKrylovSolver()
    for pp in S.preconditioners():
        if pp[0] == 'ml_amg':
            return 'ml_amg'

    return 'petsc_amg'

Example #2

def amg_method(amg_type="ml_amg"):
    """
    Determine which AMG preconditioner to use.
    If available use the preconditioner suggested by the user (ML is default).
    If not available use  petsc_amg.
    """
    S = PETScKrylovSolver()
    for pp in S.preconditioners():
        if pp[0] == amg_type:
            return amg_type

    return 'petsc_amg'

Example #3

File: linalg.py Project: hippylib/hippylib

def amg_method(amg_type="ml_amg"):
    """
    Determine which AMG preconditioner to use.
    If available use the preconditioner suggested by the user (ML is default).
    If not available use  petsc_amg.
    """
    S = PETScKrylovSolver()
    for pp in S.preconditioners():
        if pp[0] == amg_type:
            return amg_type
        
    return 'petsc_amg'