NAME

BSctx_set_pre - The preconditioner to be used by the iterative solver.

INPUT PARAMETERS

context

- The context to change

pre

- The desired preconditioner
The preconditioner choices are:
PRE_DIAG - diagonal preconditioning
PRE_ICC - incomplete Cholesky
PRE_ILU - incomplete LU
PRE_SSOR - SSOR
PRE_BJACOBI - block Jacobi

RETURNS

void

NOTES

Must agree with the preconitioner that has been computed! If PRE_ICC is selected, BSset_mat_icc_storage() must be set to TRUE before BSmain_perm(). If PRE_ILU is selected, BSset_mat_icc_storage() must be set to FALSE.

SYNOPSIS

void BSctx_set_pre(BSprocinfo *context, int pre)

LOCATION

BlockSolve95/src/BScontext.c