hifir4py.ksp.FGMRES_WorkSpace

class FGMRES_WorkSpace(*args, **kw)

Workspace buffer for flexible GMRES (FGMRES)

Z

restart-n used in storing preconditioned Q

Type:ndarray

u, u2

size-n array

Type:ndarray

__init__(*args, **kw)

Constructor of workspace buffer for GMRES

Parameters:

• n (int) – Length of the RHS vector
• restart (int, optional) – Restart dimension of KSP, default is 30
• dtype (dtype) – Data type, default is double-precision real