mirror of
https://github.com/Steffo99/unimore-hpc-assignments.git
synced 2024-11-23 00:24:23 +00:00
65 lines
2.1 KiB
C
65 lines
2.1 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 exercise6.c
|
||
|
|
* @author Alessandro Capotondi
|
||
|
|
* @brief Exercise 6
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <omp.h>
|
||
|
|
|
||
|
|
#include "utils.h"
|
||
|
|
|
||
|
|
#if !defined(W)
|
||
|
|
#define W (1 << 15)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief EX 6 - Task Parallelism w/tasks
|
||
|
|
*
|
||
|
|
* Distribute workload among 4 threads using task directive
|
||
|
|
* Same program as EX 5, but we had to manually unroll the loop to use sections
|
||
|
|
*
|
||
|
|
* a) Create a parallel region with 4 threads. Use SINGLE directive to allow
|
||
|
|
* only one thread to execute the loop. Use TASK directive to outline tasks.
|
||
|
|
* b) Parallelize using SECTION
|
||
|
|
*
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
void exercise()
|
||
|
|
{
|
||
|
|
for (int i = 0; i < 4; i++)
|
||
|
|
{
|
||
|
|
DEBUG_PRINT("%hu: I am executing iteration %hu!\n", omp_get_thread_num(), i);
|
||
|
|
work((i + 1) * W);
|
||
|
|
}
|
||
|
|
}
|