Aleix Roca Nonell
c4d5135fde
The openmp derivation provides both libomp and libompv. To avoid accidentally linking with the wrong library and to avoid the nosv dependency on libomp, this patch separates each version in a different derivation. Also, it adapts the clang wrappers and stdenvs to provide an stdenv per openmp library where each openmp will be used by default when the compiler flag "-fopenmp" is used. This eases linking ompv with nixpkgs libraries, such as blis, that expect openmp to be provided with stdenv. Reviewed-by: Rodrigo Arias Mallo <rodrigo.arias@bsc.es> Tested-by: Rodrigo Arias Mallo <rodrigo.arias@bsc.es>
61 lines
1.0 KiB
Nix
61 lines
1.0 KiB
Nix
{
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stdenv
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, nosv
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, writeText
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}:
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let
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hello_c = writeText "hello.c" ''
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#include <nosv.h>
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#include <stdlib.h>
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#include <stdio.h>
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int main(int argc, char *argv[])
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{
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int test = 1;
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#pragma omp parallel
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#pragma omp single
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#pragma omp task
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{
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if (nosv_self() == NULL) {
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printf("nosv_self() returned NULL\n");
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exit(1);
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} else {
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printf("nosv_self() INSIDE TASK OK\n");
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}
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test = 0;
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}
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return test;
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}
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'';
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in stdenv.mkDerivation {
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pname = "openmp-test-nosv";
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version = "1.0.0";
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dontUnpack = true;
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dontConfigure = true;
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# nOS-V requires access to /sys/devices to request NUMA information. It will
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# fail to run otherwise, so we disable the sandbox for this test.
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__noChroot = true;
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buildInputs = [ nosv ];
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buildPhase = ''
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set -x
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cp ${hello_c} hello.c
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clang -fopenmp=libompv ./hello.c -lnosv -o hello
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./hello | grep "INSIDE TASK OK"
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set +x
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'';
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installPhase = ''
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touch $out
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'';
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}
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