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sample_cublasLt_LtSgemmSimpleAutoTuning.h
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sample_cublasLt_LtSgemmSimpleAutoTuning.h
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/*
* Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of NVIDIA CORPORATION nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <cublasLt.h>
/// Sample wrapper executing single precision gemm algorithm auto tuning by querying cublasLt heuristics for best algorithms,
/// iterate over the results and pick the algorithm that have the best performance for the given problem
///
/// pointer mode is always host, to change it configure the appropriate matmul descriptor attribute
/// matmul is not using cublas handle's configuration of math mode, here tensor ops are implicitly allowed; to change
/// this configure appropriate attribute in the preference handle
void LtSgemmSimpleAutoTuning(cublasLtHandle_t ltHandle,
cublasOperation_t transa,
cublasOperation_t transb,
int m,
int n,
int k,
const float *alpha, /* host pointer */
const float *A,
int lda,
const float *B,
int ldb,
const float *beta, /* host pointer */
float *C,
int ldc,
void *workspace,
size_t workspaceSize,
cublasLtMatmulAlgo_t& algo);