80 Zeilen
2.6 KiB
Plaintext
80 Zeilen
2.6 KiB
Plaintext
|
// MIT License
|
||
|
|
//
|
||
|
|
// Copyright (c) 2025 Advanced Micro Devices, Inc. All rights reserved.
|
||
|
|
//
|
||
|
|
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
||
|
|
// of this software and associated documentation files (the "Software"), to deal
|
||
|
|
// in the Software without restriction, including without limitation the rights
|
||
|
|
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||
|
|
// copies of the Software, and to permit persons to whom the Software is
|
||
|
|
// furnished to do so, subject to the following conditions:
|
||
|
|
//
|
||
|
|
// The above copyright notice and this permission notice shall be included in all
|
||
|
|
// copies or substantial portions of the Software.
|
||
|
|
//
|
||
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
|
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||
|
|
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||
|
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||
|
|
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||
|
|
// SOFTWARE.
|
||
|
|
|
||
|
|
// [sphinx-start]
|
||
|
|
#include <hip/hip_runtime.h>
|
||
|
|
|
||
|
|
#include <iostream>
|
||
|
|
|
||
|
|
#define HIP_CHECK(expression) \
|
||
|
|
{ \
|
||
|
|
const hipError_t err = expression; \
|
||
|
|
if(err != hipSuccess) \
|
||
|
|
{ \
|
||
|
|
std::cerr << "HIP error: " \
|
||
|
|
<< hipGetErrorString(err) \
|
||
|
|
<< " at " << __LINE__ << "\n"; \
|
||
|
|
} \
|
||
|
|
}
|
||
|
|
|
||
|
|
// Addition of two values.
|
||
|
|
__global__ void add(int *a, int *b, int *c)
|
||
|
|
{
|
||
|
|
*c = *a + *b;
|
||
|
|
}
|
||
|
|
|
||
|
|
int main()
|
||
|
|
{
|
||
|
|
int a, b, c;
|
||
|
|
int *d_a, *d_b, *d_c;
|
||
|
|
|
||
|
|
// Setup input values.
|
||
|
|
a = 1;
|
||
|
|
b = 2;
|
||
|
|
|
||
|
|
// Allocate device copies of a, b and c.
|
||
|
|
HIP_CHECK(hipMalloc(&d_a, sizeof(*d_a)));
|
||
|
|
HIP_CHECK(hipMalloc(&d_b, sizeof(*d_b)));
|
||
|
|
HIP_CHECK(hipMalloc(&d_c, sizeof(*d_c)));
|
||
|
|
|
||
|
|
// Copy input values to device.
|
||
|
|
HIP_CHECK(hipMemcpy(d_a, &a, sizeof(*d_a), hipMemcpyHostToDevice));
|
||
|
|
HIP_CHECK(hipMemcpy(d_b, &b, sizeof(*d_b), hipMemcpyHostToDevice));
|
||
|
|
|
||
|
|
// Launch add() kernel on GPU.
|
||
|
|
add<<<1, 1>>>(d_a, d_b, d_c);
|
||
|
|
|
||
|
|
// Copy the result back to the host.
|
||
|
|
HIP_CHECK(hipMemcpy(&c, d_c, sizeof(*d_c), hipMemcpyDeviceToHost));
|
||
|
|
|
||
|
|
// Cleanup allocated memory.
|
||
|
|
HIP_CHECK(hipFree(d_a));
|
||
|
|
HIP_CHECK(hipFree(d_b));
|
||
|
|
HIP_CHECK(hipFree(d_c));
|
||
|
|
|
||
|
|
// Prints the result.
|
||
|
|
std::cout << a << " + " << b << " = " << c << std::endl;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
// [sphinx-end]
|