Wrapper for the BLAS ( part of LAPACK) *gemm routines that perform matrix-matrix multiplication. These subroutines compute the operation: C = alpha * op(A) * op(B) + beta * C where op(A) and op(B) can be the transpose or the original matrices A and B. It validates the dimensions of the input matrices and provides default values for the scaling factors alpha and beta, as well as the transformation indicators transa and transb, if they are not supplied. More...

Public Member Functions
subroutine	ezsgemm (transa, transb, alpha, a, b, beta, c)
	Verifies that the dimensions of the matrices are correct, and calls sgemm with the appropriate arguments based on transa and transb.

subroutine	ezdgemm (transa, transb, alpha, a, b, beta, c)
	Verifies that the dimensions of the matrices are correct, and calls dgemm with the appropriate arguments based on transa and transb.

subroutine	ezcgemm (transa, transb, alpha, a, b, beta, c)
	Verifies that the dimensions of the matrices are correct, and calls cgemm with the appropriate arguments based on transa and transb.

subroutine	ezzgemm (transa, transb, alpha, a, b, beta, c)
	Verifies that the dimensions of the matrices are correct, and calls zgemm with the appropriate arguments based on transa and transb.

subroutine	ezsgemm_trans_alpha_beta (a, b, c)
	Calls the ezsgemm routines with default values for transa, transb, alpha, and beta ('N', 'N', 1e0 and 0e0, respectively).

subroutine	ezdgemm_trans_alpha_beta (a, b, c)
	Calls the ezdgemm routines with default values for transa, transb, alpha, and beta ('N', 'N', 1d0 and 0d0, respectively).

subroutine	ezcgemm_trans_alpha_beta (a, b, c)
	Calls the ezcgemm routines with default values for transa, transb, alpha, and beta ('N', 'N', (1e0,0e0) and (0e0,0e0), respectively).

subroutine	ezzgemm_trans_alpha_beta (a, b, c)
	Calls the ezzgemm routines with default values for transa, transb, alpha, and beta ('N', 'N', (1d0,0d0) and (0d0,0d0), respectively).

subroutine	ezsgemm_alpha_beta (transa, transb, a, b, c)
	Calls the ezsgemm routines with default values for alpha and beta (1e0 and 0e0, respectively).

subroutine	ezdgemm_alpha_beta (transa, transb, a, b, c)
	Calls the ezdgemm routines with default values for alpha and beta (1d0 and 0d0, respectively).

subroutine	ezcgemm_alpha_beta (transa, transb, a, b, c)
	Calls the ezcgemm routines with default values for alpha and beta ((1e0,0e0) and (0e0,0e0), respectively).

subroutine	ezzgemm_alpha_beta (transa, transb, a, b, c)
	Calls the ezzgemm routines with default values for alpha and beta ((1d0,0d0) and (0d0,0d0), respectively).

subroutine	ezsgemm_trans_beta (alpha, a, b, c)
	Calls the ezsgemm routines with default values for transa, transb, and beta ('N', 'N' and 0e0, respectively).

subroutine	ezdgemm_trans_beta (alpha, a, b, c)
	Calls the ezdgemm routines with default values for transa, transb, and beta ('N', 'N' and 0d0, respectively).

subroutine	ezcgemm_trans_beta (alpha, a, b, c)
	Calls the ezcgemm routines with default values for transa, transb, and beta ('N', 'N' and (0e0,0e0), respectively).

subroutine	ezzgemm_trans_beta (alpha, a, b, c)
	Calls the ezzgemm routines with default values for transa, transb, and beta ('N', 'N' and (0d0,0d0), respectively).

subroutine	ezsgemm_trans_alpha (a, b, beta, c)
	Calls the ezsgemm routines with default values for transa, transb, and alpha ('N', 'N' and 1e0, respectively).

subroutine	ezdgemm_trans_alpha (a, b, beta, c)
	Calls the ezdgemm routines with default values for transa, transb, and alpha ('N', 'N' and 1d0, respectively).

subroutine	ezcgemm_trans_alpha (a, b, beta, c)
	Calls the ezcgemm routines with default values for transa, transb, and alpha ('N', 'N' and (1e0,0e0), respectively).

subroutine	ezzgemm_trans_alpha (a, b, beta, c)
	Calls the ezzgemm routines with default values for transa, transb, and alpha ('N', 'N' and (1d0,0d0), respectively).

subroutine	ezsgemm_alpha (transa, transb, a, b, beta, c)
	Calls the ezsgemm routines with default values for alpha (1e0).

subroutine	ezdgemm_alpha (transa, transb, a, b, beta, c)
	Calls the ezdgemm routines with default values for alpha (1d0).

subroutine	ezcgemm_alpha (transa, transb, a, b, beta, c)
	Calls the ezcgemm routines with default values for alpha ((1e0,0e0)).

subroutine	ezzgemm_alpha (transa, transb, a, b, beta, c)
	Calls the ezzgemm routines with default values for alpha ((1d0,0d0)).

subroutine	ezsgemm_beta (transa, transb, alpha, a, b, c)
	Calls the ezsgemm routines with default values for beta (0e0).

subroutine	ezdgemm_beta (transa, transb, alpha, a, b, c)
	Calls the ezdgemm routines with default values for beta (0d0).

subroutine	ezcgemm_beta (transa, transb, alpha, a, b, c)
	Calls the ezcgemm routines with default values for beta ((0e0,0e0)).

subroutine	ezzgemm_beta (transa, transb, alpha, a, b, c)
	Calls the ezzgemm routines with default values for beta ((0d0,0d0)).

subroutine	ezsgemm_trans (alpha, a, b, beta, c)
	Calls the ezsgemm routines with default values for transa and transb ('N' and 'N', respectively).

subroutine	ezdgemm_trans (alpha, a, b, beta, c)
	Calls the ezdgemm routines with default values for transa and transb ('N' and 'N', respectively).

subroutine	ezcgemm_trans (alpha, a, b, beta, c)
	Calls the ezcgemm routines with default values for transa and transb ('N' and 'N', respectively).

subroutine	ezzgemm_trans (alpha, a, b, beta, c)
	Calls the ezzgemm routines with default values for transa and transb ('N' and 'N', respectively).

Detailed Description

Wrapper for the BLAS ( part of LAPACK) *gemm routines that perform matrix-matrix multiplication. These subroutines compute the operation: C = alpha * op(A) * op(B) + beta * C where op(A) and op(B) can be the transpose or the original matrices A and B. It validates the dimensions of the input matrices and provides default values for the scaling factors alpha and beta, as well as the transformation indicators transa and transb, if they are not supplied.

Parameters

[in]	transa	(Optional, default = 'N') Specifies the operation applied to matrix A: 'N': No transpose 'T': Transpose 'C': Conjugate transpose
[in]	transb	(Optional, default = 'N') Specifies the operation applied to matrix B: 'N': No transpose 'T': Transpose 'C': Conjugate transpose
[in]	alpha	(Optional, default = 1) Scalar multiplier for `op(A) * op(B)`.
[in]	beta	(Optional, default = 0) Scalar multiplier for `C`.
[in]	A	Input matrix A with dimensions matching the specified operation.
[in]	B	Input matrix B with dimensions matching the specified operation.
[in,out]	C	Matrix C. On input, the initial values of C. On output, the result of the matrix multiplication.

Note: If matrix dimensions are incompatible, an error message is printed, and the computation is skipped.

The documentation for this interface was generated from the following file:

module/module_ezmatmul.f90

Public Member Functions

Detailed Description