On 07/01/14 19:40, Jonathan Thornburg wrote:
Has anyone gotten OpenMP to work on 5.5-{release,stable}/amd64?'man gcc' and /usr/local/info/gcc.info both describe gcc support for OpenMP (the -fopenmp compiler flag), but I'm getting fatal errors (either missing compiler spec file or missing "omp.h" header file) trying to compile even the simplest "hello, world" OpenMP programs with gcc (either base /usr/bin/gcc or ports /usr/local/bin/gcc). 'locate omp.h' fails to find the header file anywhere, and 'man clang' doesn't mention OpenMP support at all. I want to develop OpenMP programs on OpenBSD. Do I need to build my own gcc to do so? Script started on Tue Jul 1 10:21:34 2014 % uname -a OpenBSD copper.astro.indiana.edu 5.5 GENERIC.MP#0 amd64 % cat hello.c #include <stdio.h> int main(void) { #pragma omp parallel printf("Hello, world.\n"); return 0; } % cat mt-hello.c #include <stdio.h> #include "omp.h" int main(void) { #pragma omp parallel { int id = omp_get_thread_num(); printf("hello(%d)\n", id); printf("world(%d)\n", id); } return 0; } % % % /usr/bin/gcc --version gcc (GCC) 4.2.1 20070719 Copyright (C) 2007 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. % /usr/bin/gcc -fopenmp -o hello hello.c gcc: libgomp.spec: No such file or directory % /usr/bin/gcc -fopenmp -o mt-hello mt-hello.c mt-hello.c:2:17: error: omp.h: No such file or directory % % % /usr/local/bin/gcc --version gcc (GCC) 4.8.2 Copyright (C) 2013 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. % /usr/local/bin/gcc -fopenmp -o hello hello.c gcc: error: libgomp.spec: No such file or directory % /usr/local/bin/gcc -fopenmp -o mt-hello mt-hello.c mt-hello.c:2:17: fatal error: omp.h: No such file or directory #include "omp.h" ^ compilation terminated. % % % /usr/local/bin/clang --version clang version 3.3 (tags/RELEASE_33/final) Target: amd64-unknown-openbsd5.5 Thread model: posix % /usr/local/bin/clang -fopenmp -o hello hello.c clang-3.3: warning: argument unused during compilation: '-fopenmp' % ./hello Hello, world. % /usr/local/bin/clang -fopenmp -o mt-hello mt-hello.c clang-3.3: warning: argument unused during compilation: '-fopenmp' mt-hello.c:2:10: fatal error: 'omp.h' file not found #include "omp.h" ^ 1 error generated. % exit Script done on Tue Jul 1 10:23:46 2014 ciao,
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