mirror of
https://github.com/Steffo99/unimore-hpc-assignments.git
synced 2024-11-23 00:24:23 +00:00
96 lines
2.6 KiB
C
96 lines
2.6 KiB
C
/*
|
|
* 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 exercise7.c
|
|
* @author Alessandro Capotondi
|
|
* @date 27 Mar 2020
|
|
* @brief Exercise 7
|
|
*
|
|
* @see https://dolly.fim.unimore.it/2019/course/view.php?id=152
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <omp.h>
|
|
|
|
#include "utils.h"
|
|
|
|
#if !defined(W)
|
|
#define W (1000)
|
|
#endif
|
|
|
|
#if !defined(T)
|
|
#define T (20)
|
|
#endif
|
|
|
|
/**
|
|
* @brief EX 7 - Task Parallelism w/tasks
|
|
*
|
|
* a) Parallelize with TASK directive.
|
|
* b) Parallelize with SINGLE NOWAIT directive.
|
|
* c) Compare Results with a for loop.
|
|
* @return void
|
|
*/
|
|
void exercise()
|
|
{
|
|
unsigned int i;
|
|
|
|
#if 1
|
|
#pragma omp parallel
|
|
#pragma omp single nowait
|
|
for (i = 0; i < 16384; i++)
|
|
{
|
|
#pragma omp task
|
|
{
|
|
DEBUG_PRINT("%hu: I am executing iteration %hu!\n", omp_get_thread_num(), i);
|
|
work(W);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#if 0
|
|
#pragma omp parallel
|
|
for (i = 0; i < 16384; i++)
|
|
{
|
|
#pragma omp single nowait
|
|
{
|
|
DEBUG_PRINT("%hu: I am executing iteration %hu!\n", omp_get_thread_num(), i);
|
|
work(W);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#if 0
|
|
#pragma omp parallel for
|
|
for (i = 0; i < 16384; i++)
|
|
{
|
|
DEBUG_PRINT("%hu: I am executing iteration %hu!\n", omp_get_thread_num(), i);
|
|
work(W);
|
|
}
|
|
#endif
|
|
}
|