Applies a block reflector or its transpose/conjugate-transpose as returned by p?tzrzf to a general matrix.
Generates all or part of the orthogonal/unitary matrix Q from an LQ factorization determined by p?gelqf (unblocked algorithm).
Sends multiple shifts through a small (single node) matrix to maximize the number of bulges that can be sent through.
Returns statistics about various phases of the solving process.
Makes the FGMRES iterations.
The input parameters for Extended Eigensolver routines are contained in an integer array named fpm. To call the Extended Eigensolver interfaces, this array should be initialized using the routine feastinit.
VML interfaces include the function names and argument lists. The following sections describe the Fortran and C interfaces for the VML functions. Note that some of the functions have multiple input and output arguments
Some VML functions may also take scalar arguments as input. See the function description for the naming conventions of such arguments.
Performs element by element multiplication of vector a element and conjugated vector b element.
Computes a square root of sum of two squared elements.
Computes four-quadrant inverse tangent of elements of two vectors.