Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 63x 63x 63x 63x 63x 63x 63x 63x 4x 4x 63x 4x 4x 63x 4x 4x 63x 3x 3x 63x 3x 3x 63x 3x 3x 42x 42x 42x 63x 20x 63x 31x 63x 11x 11x 42x 63x 20x 63x 31x 63x 11x 11x 63x 6x 6x 63x 7x 7x 63x 18x 63x 11x 11x 63x 7x 7x 22x 22x 63x 2x 2x 2x 2x 2x | /**
* @license Apache-2.0
*
* Copyright (c) 2026 The Stdlib Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
'use strict';
// MODULES //
var isLayout = require( '@stdlib/blas/base/assert/is-layout' );
var isMatrixTranspose = require( '@stdlib/blas/base/assert/is-transpose-operation' );
var isRowMajor = require( '@stdlib/ndarray/base/assert/is-row-major-string' );
var isColumnMajor = require( '@stdlib/ndarray/base/assert/is-column-major-string' );
var max = require( '@stdlib/math/base/special/fast/max' );
var resolveOrder = require( '@stdlib/blas/base/layout-resolve-enum' );
var resolveTrans = require( '@stdlib/blas/base/transpose-operation-resolve-enum' );
var format = require( '@stdlib/string/format' );
var addon = require( './../src/addon.node' );
// MAIN //
/**
* Performs the matrix-matrix operation `C = α*op(A)*op(B) + β*C` where `op(X)` is either `op(X) = X` or `op(X) = X^T`, `α` and `β` are scalars, `A`, `B`, and `C` are matrices, with `op(A)` an `M` by `K` matrix, `op(B)` a `K` by `N` matrix, and `C` an `M` by `N` matrix.
*
* @param {string} order - storage layout
* @param {string} transA - specifies whether `A` should be transposed, conjugate-transposed, or not transposed
* @param {string} transB - specifies whether `B` should be transposed, conjugate-transposed, or not transposed
* @param {NonNegativeInteger} M - number of rows in the matrix `op(A)` and in the matrix `C`
* @param {NonNegativeInteger} N - number of columns in the matrix `op(B)` and in the matrix `C`
* @param {NonNegativeInteger} K - number of columns in the matrix `op(A)` and number of rows in the matrix `op(B)`
* @param {number} alpha - scalar constant
* @param {Float64Array} A - first matrix
* @param {PositiveInteger} LDA - stride of the first dimension of `A` (a.k.a., leading dimension of the matrix `A`)
* @param {Float64Array} B - second matrix
* @param {PositiveInteger} LDB - stride of the first dimension of `B` (a.k.a., leading dimension of the matrix `B`)
* @param {number} beta - scalar constant
* @param {Float64Array} C - third matrix
* @param {PositiveInteger} LDC - stride of the first dimension of `C` (a.k.a., leading dimension of the matrix `C`)
* @throws {TypeError} first argument must be a valid order
* @throws {TypeError} second argument must be a valid transpose operation
* @throws {TypeError} third argument must be a valid transpose operation
* @throws {RangeError} fourth argument must be a nonnegative integer
* @throws {RangeError} fifth argument must be a nonnegative integer
* @throws {RangeError} sixth argument must be a nonnegative integer
* @throws {RangeError} ninth argument must be greater than or equal to max(1,M) when `A` is not transposed and max(1,K) otherwise
* @throws {RangeError} eleventh argument must be greater than or equal to max(1,K) when `B` is not transposed and max(1,N) otherwise
* @throws {RangeError} fourteenth argument must be greater than or equal to max(1,M)
* @returns {Float64Array} `C`
*
* @example
* var Float64Array = require( '@stdlib/array/float64' );
*
* var A = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
* var B = new Float64Array( [ 1.0, 1.0, 0.0, 1.0 ] );
* var C = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
*
* dgemm( 'row-major', 'no-transpose', 'no-transpose', 2, 2, 2, 1.0, A, 2, B, 2, 1.0, C, 2 );
* // C => <Float64Array>[ 2.0, 5.0, 6.0, 11.0 ]
*/
function dgemm( order, transA, transB, M, N, K, alpha, A, LDA, B, LDB, beta, C, LDC ) { // eslint-disable-line max-params
var nrowsa;
var nrowsb;
var valc;
var isrm;
var iscm;
if (!isLayout( order ) ) {
throw new TypeError( format( 'invalid argument, first argument must be a valid order. Value: `%s`.', order ) );
}
if ( !isMatrixTranspose( transA ) ) {
throw new TypeError( format( 'invalid argument, second argument must be a valid transpose operation. Value: `%s`.', transA ) );
}
if ( !isMatrixTranspose( transB ) ) {
throw new TypeError( format( 'invalid argument, third argument must be a valid transpose operation. Value: `%s`.', transB ) );
}
if ( M < 0 ) {
throw new RangeError( format( 'invalid argument. Fourth argument must be a nonnegative integer. Value: `%d`.', M ) );
}
if ( N < 0 ) {
throw new RangeError( format( 'invalid argument. Fifth argument must be a nonnegative integer. Value: `%d`.', N ) );
}
if ( K < 0 ) {
throw new RangeError( format( 'invalid argument. Sixth argument must be a nonnegative integer. Value: `%d`.', K ) );
}
isrm = isRowMajor( order );
iscm = isColumnMajor( order );
if (
( isrm && transA === 'no-transpose' ) ||
(iscm && transA !== 'no-transpose' )
) {
nrowsa = K;
} else {
nrowsa = M;
}
if (
( isrm && transB === 'no-transpose' ) ||
( iscm && transB !== 'no-transpose' )
) {
nrowsb = N;
} else {
nrowsb = K;
}
if ( LDA < max( 1, nrowsa ) ) {
throw new RangeError( format( 'invalid argument. Ninth argument must be greater than or equal to max(1,%d) when `A` is not transposed and max(1,%d) otherwise. Value: `%d`.', M, K, LDA ) );
}
if ( LDB < max( 1, nrowsb ) ) {
throw new RangeError( format( 'invalid argument. Eleventh argument must be greater than or equal to max(1,%d ) when `B` is not transposed and max(1,%d) otherwise. Value: `%d`.', K, N, LDB ) );
}
if ( isrm ) {
valc = N;
} else {
valc = M;
}
if ( LDC < max( 1, valc ) ) {
throw new RangeError( format( 'invalid argument. Fourteenth argument must be greater than or equal to max(1,%d). Value: `%d`.', valc, LDC ) );
}
addon( resolveOrder( order ), resolveTrans( transA ), resolveTrans( transB ), M, N, K, alpha, A, LDA, B, LDB, beta, C, LDC ); // eslint-disable-line max-len
return C;
}
// EXPORTS //
module.exports = dgemm;
|