p |
type(mld_ xprec_type), intent(inout) . |
|
The preconditioner data structure, containing the local part of .
Note that x must be chosen according
to the real/complex, single/double precision version of MLD2P4 under use. |
x |
type( kind_parameter), dimension(:), intent(in) . |
|
The local part of the vector . Note that type and
kind_parameter must be chosen according
to the real/complex, single/double precision version of MLD2P4 under use. |
y |
type( kind_parameter), dimension(:), intent(out) . |
|
The local part of the vector . Note that type and
kind_parameter must be chosen according
to the real/complex, single/double precision version of MLD2P4 under use. |
desc_a |
type(psb_desc_type), intent(in) . |
|
The communication descriptor associated to the matrix to be
preconditioned. |
info |
integer, intent(out) . |
|
Error code. If no error, 0 is returned. See Section for details. |
trans |
character(len=1), optional, intent(in). |
|
If trans = 'N','n' then
;
if trans = 'T','t' then
(transpose of ; if trans = 'C','c' then
(conjugate transpose of . |
work |
type( kind_parameter), dimension(:), optional, target . |
|
Workspace. Its size should be at
least 4 * psb_cd_get_local_cols(desc_a) (see the PSBLAS User's Guide).
Note that type and kind_parameter must be chosen according
to the real/complex, single/double precision version of MLD2P4 under use. |