lalg_gemm with both the (Hermitian) transpose of A and B. More...

Detailed Description

lalg_gemm with both the (Hermitian) transpose of A and B.

Definition at line 252 of file lalg_basic.F90.

Private Member Functions
subroutine	gemm_cc_1_2 (m, n, k, alpha, a, b, beta, c)
	GEMM when both a and b are (Hermitian) transposes. More...

subroutine	gemm_cc_1_4 (m, n, k, alpha, a, b, beta, c)
	GEMM when both a and b are (Hermitian) transposes. More...

Member Function/Subroutine Documentation

subroutine lalg_basic_oct_m::lalg_gemm_cc::gemm_cc_1_2	(	integer, intent(in)	m,
		integer, intent(in)	n,
		integer, intent(in)	k,
		real(real64), intent(in)	alpha,
		real(real64), dimension(:,:), intent(in), contiguous	a,
		real(real64), dimension(:,:), intent(in), contiguous	b,
		real(real64), intent(in)	beta,
		real(real64), dimension(:,:), intent(inout), contiguous	c
	)

private

GEMM when both a and b are (Hermitian) transposes.

\[ \mathbf{C} = \mathbf{A}^\dagger \mathbf{B}^\dagger \]

Note that one can equivalently perform:

\[ \mathbf{C} = \left[\mathbf{B} \mathbf{A} \right]^\dagger \]

It might be more efficient to replace the implementation with the second operation defined above - requires testing.

Parameters

Definition at line 1063 of file lalg_basic.F90.

subroutine lalg_basic_oct_m::lalg_gemm_cc::gemm_cc_1_4	(	integer, intent(in)	m,
		integer, intent(in)	n,
		integer, intent(in)	k,
		complex(real64), intent(in)	alpha,
		complex(real64), dimension(:,:), intent(in), contiguous	a,
		complex(real64), dimension(:,:), intent(in), contiguous	b,
		complex(real64), intent(in)	beta,
		complex(real64), dimension(:,:), intent(inout), contiguous	c
	)