mirror of
https://github.com/NVIDIA/cuda-samples.git
synced 2024-11-24 23:39:14 +08:00
61 lines
2.7 KiB
C++
61 lines
2.7 KiB
C++
/* Copyright (c) 2022, 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.
|
|
*/
|
|
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// export C interface
|
|
extern "C"
|
|
void computeGold(float *, const float *, const float *, unsigned int, unsigned int, unsigned int);
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//! Compute reference data set
|
|
//! C = A * B
|
|
//! @param C reference data, computed but preallocated
|
|
//! @param A matrix A as provided to device
|
|
//! @param B matrix B as provided to device
|
|
//! @param hA height of matrix A
|
|
//! @param wB width of matrix B
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
void
|
|
computeGold(float *C, const float *A, const float *B, unsigned int hA, unsigned int wA, unsigned int wB)
|
|
{
|
|
for (unsigned int i = 0; i < hA; ++i)
|
|
for (unsigned int j = 0; j < wB; ++j)
|
|
{
|
|
double sum = 0;
|
|
|
|
for (unsigned int k = 0; k < wA; ++k)
|
|
{
|
|
double a = A[i * wA + k];
|
|
double b = B[k * wB + j];
|
|
sum += a * b;
|
|
}
|
|
|
|
C[i * wB + j] = (float)sum;
|
|
}
|
|
}
|