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call psb_precaply(prec,x,y,desc_a,info,trans,work)
call psb_precaply(prec,x,desc_a,info,trans)
- Type:
- Synchronous.
- On Entry
-
- prec
- the preconditioner.
Scope: local
Type: required
Intent: in.
Specified as: a preconditioner data structure precdatapsb_prec_type.
- x
- the source vector.
Scope: local
Type: required
Intent: inout.
Specified as: a double precision array.
- desc_a
- the problem communication descriptor.
Scope: local
Type: required
Intent: in.
Specified as: a communication data structure descdatapsb_desc_type.
- trans
- Scope:
Type: optional
Intent: in.
Specified as: a character.
- work
- an optional work space
Scope: local
Type: optional
Intent: inout.
Specified as: a double precision array.
- On Return
-
- y
- the destination vector.
Scope: local
Type: required
Intent: inout.
Specified as: a double precision array.
- info
- Error code.
Scope: local
Type: required
Intent: out.
An integer value; 0 means no error has been detected.