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57 lines
2 KiB
C
57 lines
2 KiB
C
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/*
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* BSD 2-Clause License
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*
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* Copyright (c) 2020, Alessandro Capotondi
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* @file exercise1.c
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* @author Alessandro Capotondi
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* @date 27 Mar 2020
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* @brief Exercise 1
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*
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* @see https://dolly.fim.unimore.it/2019/course/view.php?id=152
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*/
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#include <stdio.h>
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#include <omp.h>
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#include "utils.h"
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/**
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* @brief EX 1 - Spawn a parallel region from the "print" code
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*
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* a) Detect number of threads and thread ID (hint: omp_get_num_threads(), omp_get_thread_num())
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* b) Do it for 2, 4, 8, 16 threads
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*
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* @return void
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*/
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void exercise()
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{
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int tid = 0, nthreads = 0;
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#pragma omp parallel num_threads(NTHREADS)
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printf("Hello World! I am thread number %d out of %d!\n", omp_get_thread_num(), omp_get_num_threads());
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}
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