f11bf
is the AD Library version of the primal routine
f11bff.
Based (in the C++ interface) on overload resolution,
f11bf can be used for primal, tangent and adjoint
evaluation. It supports tangents and adjoints of first order.
Note: this function can be used with AD tools other than dco/c++. For details, please contact
NAG.
f11bf
is the AD Library version of the primal routine
f11bff.
f11bff is the third in a suite of three routines for the iterative solution of a real general (nonsymmetric) system of simultaneous linear equations (see
Golub and Van Loan (1996)).
f11bff returns information about the computations during an iteration and/or after this has been completed. The first routine of the suite,
f11bdf, is a setup routine; the second routine,
f11bef, is the iterative solver itself.
These three routines are suitable for the solution of large sparse general (nonsymmetric) systems of equations.
For further information see
Section 3 in the documentation for
f11bff.
A brief summary of the AD specific arguments is given below. For the remainder, links are provided to the corresponding argument from the primal routine.
A tooltip popup for all arguments can be found by hovering over the argument name in
Section 2 and in this section.
f11bf preserves all error codes from
f11bff and in addition can return:
- ${\mathbf{ifail}}=-89$
An unexpected AD error has been triggered by this routine. Please
contact
NAG.
See
Section 4.8.2 in the NAG AD Library Introduction for further information.
- ${\mathbf{ifail}}=-199$
The routine was called using a mode that has not yet been implemented.
- ${\mathbf{ifail}}=-443$
On entry: ad_handle is nullptr.
This check is only made if the overloaded C++ interface is used with arguments not of type double.
- ${\mathbf{ifail}}=-444$
A C++ exception was thrown.
The error message will show the details of the C++ exception text.
- ${\mathbf{ifail}}=-899$
Dynamic memory allocation failed for AD.
See
Section 4.8.1 in the NAG AD Library Introduction for further information.
Not applicable.
None.
The following examples are variants of the example for
f11bff,
modified to demonstrate calling the NAG AD Library.