Arguments

p	type(mld_xprec_type), intent(in).
	The preconditioner data structure. Note that x must be chosen according to the real/complex, single/double precision version of MLD2P4 under use.
info	integer, intent(out).
	Error code. If no error, 0 is returned. See Section 7 for details.
iout	integer, intent(in), optional.
	The id of the file where the preconditioner description will be printed; the default is the standard output.