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/*
* ******************************************************************************
* *
* *
* * This program and the accompanying materials are made available under the
* * terms of the Apache License, Version 2.0 which is available at
* * https://www.apache.org/licenses/LICENSE-2.0.
* *
* * See the NOTICE file distributed with this work for additional
* * information regarding copyright ownership.
* * 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.
* *
* * SPDX-License-Identifier: Apache-2.0
* *****************************************************************************
*/
package org.nd4j.linalg.api.blas;
import org.nd4j.linalg.api.ndarray.INDArray;
public interface Level3 {
/**
* gemm performs a matrix-matrix operation
c := alpha*op(a)*op(b) + beta*c,
where c is an m-by-n matrix,
op(a) is an m-by-k matrix,
op(b) is a k-by-n matrix.
* @param Order
* @param TransA
* @param TransB
* @param alpha
* @param A
* @param B
* @param beta
* @param C
*/
void gemm(char Order, char TransA, char TransB, double alpha, INDArray A, INDArray B, double beta, INDArray C);
/** A convenience method for matrix-matrix operations with transposes.
* Implements C = alpha*op(A)*op(B) + beta*C
* Matrices A and B can be any order and offset (though will have copy overhead if elements are not contiguous in buffer)
* but matrix C MUST be f order, 0 offset and have length == data.length
*/
void gemm(INDArray A, INDArray B, INDArray C, boolean transposeA, boolean transposeB, double alpha, double beta);
/**
* her2k performs a rank-2k update of an n-by-n Hermitian matrix c, that is, one of the following operations:
c := alpha*a*conjg(b') + conjg(alpha)*b*conjg(a') + beta*c, for trans = 'N'or'n'
c := alpha*conjg(b')*a + conjg(alpha)*conjg(a')*b + beta*c, for trans = 'C'or'c'
where c is an n-by-n Hermitian matrix;
a and b are n-by-k matrices if trans = 'N'or'n',
a and b are k-by-n matrices if trans = 'C'or'c'.
* @param Order
* @param Side
* @param Uplo
* @param alpha
* @param A
* @param B
* @param beta
* @param C
*/
void symm(char Order, char Side, char Uplo, double alpha, INDArray A, INDArray B, double beta, INDArray C);
/**
* syrk performs a rank-n update of an n-by-n symmetric matrix c, that is, one of the following operations:
c := alpha*a*a' + beta*c for trans = 'N'or'n'
c := alpha*a'*a + beta*c for trans = 'T'or't','C'or'c',
where c is an n-by-n symmetric matrix;
a is an n-by-k matrix, if trans = 'N'or'n',
a is a k-by-n matrix, if trans = 'T'or't','C'or'c'.
* @param Order
* @param Uplo
* @param Trans
* @param alpha
* @param A
* @param beta
* @param C
*/
void syrk(char Order, char Uplo, char Trans, double alpha, INDArray A, double beta, INDArray C);
/**
* yr2k performs a rank-2k update of an n-by-n symmetric matrix c, that is, one of the following operations:
c := alpha*a*b' + alpha*b*a' + beta*c for trans = 'N'or'n'
c := alpha*a'*b + alpha*b'*a + beta*c for trans = 'T'or't',
where c is an n-by-n symmetric matrix;
a and b are n-by-k matrices, if trans = 'N'or'n',
a and b are k-by-n matrices, if trans = 'T'or't'.
* @param Order
* @param Uplo
* @param Trans
* @param alpha
* @param A
* @param B
* @param beta
* @param C
*/
void syr2k(char Order, char Uplo, char Trans, double alpha, INDArray A, INDArray B, double beta, INDArray C);
/**
* syr2k performs a rank-2k update of an n-by-n symmetric matrix c, that is, one of the following operations:
c := alpha*a*b' + alpha*b*a' + beta*c for trans = 'N'or'n'
c := alpha*a'*b + alpha*b'*a + beta*c for trans = 'T'or't',
where c is an n-by-n symmetric matrix;
a and b are n-by-k matrices, if trans = 'N'or'n',
a and b are k-by-n matrices, if trans = 'T'or't'.
* @param Order
* @param Side
* @param Uplo
* @param TransA
* @param Diag
* @param alpha
* @param A
* @param B
* @param C
*/
void trmm(char Order, char Side, char Uplo, char TransA, char Diag, double alpha, INDArray A, INDArray B,
INDArray C);
/**
* ?trsm solves one of the following matrix equations:
op(a)*x = alpha*b or x*op(a) = alpha*b,
where x and b are m-by-n general matrices, and a is triangular;
op(a) must be an m-by-m matrix, if side = 'L'or'l'
op(a) must be an n-by-n matrix, if side = 'R'or'r'.
For the definition of op(a), see Matrix Arguments.
The routine overwrites x on b.
* @param Order
* @param Side
* @param Uplo
* @param TransA
* @param Diag
* @param alpha
* @param A
* @param B
*/
void trsm(char Order, char Side, char Uplo, char TransA, char Diag, double alpha, INDArray A, INDArray B);
}
