mirror of
https://github.com/Steffo99/unimore-hpc-assignments.git
synced 2024-11-22 16:14:24 +00:00
76 lines
2.3 KiB
Text
76 lines
2.3 KiB
Text
/*
|
||
* BSD 2-Clause License
|
||
*
|
||
* Copyright (c) 2020, Alessandro Capotondi
|
||
* 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.
|
||
*
|
||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 HOLDER 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.
|
||
*/
|
||
|
||
/**
|
||
* @file exercise1.cu
|
||
* @author Alessandro Capotondi
|
||
* @date 27 Mar 2020
|
||
* @brief Exercise 1
|
||
*
|
||
* @see https://dolly.fim.unimore.it/2019/course/view.php?id=152
|
||
*/
|
||
|
||
#include <stdlib.h>
|
||
#include <stdio.h>
|
||
#include <string.h>
|
||
#include <math.h>
|
||
|
||
#include <cuda_runtime.h>
|
||
|
||
#ifndef N
|
||
#define N 32
|
||
#endif
|
||
|
||
#ifndef BLOCK_SIZE
|
||
#define BLOCK_SIZE 4
|
||
#endif
|
||
|
||
/**
|
||
* @brief EX 1 - Launch CUDA kernel to "print" helloworld
|
||
*
|
||
* a) Detect global thread id. (tip: use threadIdx.x, blockDim.x, and blockIdx.x)
|
||
* b) Explore thread execution and schedule changing: N={32} and M={4,8,16,32,64}
|
||
* c) Add corner case management
|
||
*
|
||
* @return void
|
||
*/
|
||
|
||
__global__ void helloworld(void)
|
||
{
|
||
int gid;
|
||
printf("Hello world, I am global thread %d (threadIdx=%d, blockIdx=%d, blockDim=%d)\n", gid, ...);
|
||
}
|
||
|
||
int main(int argc, const char **argv)
|
||
{
|
||
helloworld<<<N / BLOCK_SIZE, BLOCK_SIZE>>>();
|
||
|
||
// CUDA exit -- needed to flush printf write buffer
|
||
cudaDeviceReset();
|
||
return 0;
|
||
}
|