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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.2.2/] [libgomp/] [testsuite/] [libgomp.c/] [omp_hello.c] - Rev 527
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/****************************************************************************** * FILE: omp_hello.c * DESCRIPTION: * OpenMP Example - Hello World - C/C++ Version * In this simple example, the master thread forks a parallel region. * All threads in the team obtain their unique thread number and print it. * The master thread only prints the total number of threads. Two OpenMP * library routines are used to obtain the number of threads and each * thread's number. * AUTHOR: Blaise Barney 5/99 * LAST REVISED: 04/06/05 ******************************************************************************/ #include <omp.h> #include <stdio.h> #include <stdlib.h> int main (int argc, char *argv[]) { int nthreads, tid; /* Fork a team of threads giving them their own copies of variables */ #pragma omp parallel private(nthreads, tid) { /* Obtain thread number */ tid = omp_get_thread_num(); printf("Hello World from thread = %d\n", tid); /* Only master thread does this */ if (tid == 0) { nthreads = omp_get_num_threads(); printf("Number of threads = %d\n", nthreads); } } /* All threads join master thread and disband */ return 0; }
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