Visible to Intel only — GUID: GUID-C08B3013-0604-4D06-87E5-A61E7673AB0A
Visible to Intel only — GUID: GUID-C08B3013-0604-4D06-87E5-A61E7673AB0A
dcgmrhs_check
Checks consistency and correctness of the user defined data.
Syntax
dcgmrhs_check(n, x, nrhs, b, RCI_request, ipar, dpar, tmp)
Include Files
- Fortran: mkl_rci.fi, mkl_rci.f90
Description
The routine dcgmrhs_check checks the consistency and correctness of the parameters to be passed to the solver routine dcgmrhs. While this operation reduces the chance of making a mistake in the parameters, it does not guarantee that the solver returns the correct result.
If you are sure that the correct data is specified in the solver parameters, you can skip this operation.
The lengths of all vectors must be defined in a previous call to the dcgmrhs_init routine.
If none of the stopping criteria (ipar(8)-ipar(10)) has been enabled, both ipar(8) and ipar(9) will be set to 1.
Input Parameters
- n
-
INTEGER. Sets the size of the problem.
- x
-
DOUBLE PRECISION. Array of size n*nrhs. Contains the initial approximation to the solution vectors. Normally it is equal to 0 or to b.
- nrhs
-
INTEGER. This parameter sets the number of right-hand sides.
- b
-
DOUBLE PRECISION. Array of size n*nrhs. Contains the right-hand side vectors.
Output Parameters
- RCI_request
-
INTEGER. Returns information about the results of the routine.
- ipar
-
INTEGER. Array of size (128+2*nrhs). Refer to the CG Common Parameters. Only ipar(8)-ipar(9) might be changed.
- dpar
-
DOUBLE PRECISION. Array of size (128+2*nrhs). Refer to the CG Common Parameters.
- tmp
-
DOUBLE PRECISION. Array of size (n, (3+nrhs)). Refer to the CG Common Parameters.
Return Values
- RCI_request= 0
-
Indicates that the task completed normally.
- RCI_request= -1100
-
Indicates that the task is interrupted and the errors occur.
- RCI_request= -1001
-
Indicates that there are some warning messages.
- RCI_request= -1010
-
Indicates that the routine changed some parameters to make them consistent or correct.
- RCI_request= -1011
-
Indicates that there are some warning messages and that the routine changed some parameters.