SparseMultiply(_:_:_:)
Perform the multiply operation Y = Subfactor * X for complex double values, in place.
Declaration
func SparseMultiply(_ Subfactor: SparseOpaqueSubfactor_Complex_Double, _ XY: DenseMatrix_Complex_Double, _ workspace: UnsafeMutableRawPointer)Parameters
- Subfactor:
(Input) The subfactor to multiply by, as returned by
SparseCreateSubfactor(). - XY:
(Input/Output) On input, the matrix
X. On return it is overwritten with the matrixY. IfSubfactorism x n, thenXBmust have dimensionk x nrhs, wherek = max(m, n)andnrhsis the number of right-hand side vectors. Ifm != n, then only the firstmin(m,n)entries are used for input or output as approriate. - workspace:
(Scratch) A workspace of size
Subfactor.workspaceRequiredStatic + nrhs * Subfactor.workspaceRequiredPerRHS * 2. This memory must be 16-byte aligned (any allocation returned bymalloc()has this property).