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6dba41fbcb
Use the attribute mpi to provide a system wide default MPI
implementation. The default is openmpi (as before).
This now allows for overriding the MPI implentation by using
the overlay mechanism. Build all packages with mpich instead
of the default openmpi can now be achived like this:
self: super:
{
mpi = super.mpich;
}
All derivations that have been using "mpi ? null" to provide optional
building with MPI have been change in the following way to allow for
optional builds with MPI:
{ ...
, mpi
, useMpi ? false
}
36 lines
762 B
Nix
36 lines
762 B
Nix
{ lib, stdenv, fetchurl, mpi } :
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stdenv.mkDerivation rec {
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pname = "hpcg";
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version = "3.1";
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src = fetchurl {
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url = "http://www.hpcg-benchmark.org/downloads/${pname}-${version}.tar.gz";
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sha256 = "197lw2nwmzsmfsbvgvi8z7kj69n374kgfzzp8pkmk7mp2vkk991k";
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};
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dontConfigure = true;
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enableParallelBuilding = true;
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buildInputs = [ mpi ];
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makeFlags = [ "arch=Linux_MPI" ];
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installPhase = ''
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mkdir -p $out/bin $out/share/hpcg
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cp bin/xhpcg $out/bin
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cp bin/hpcg.dat $out/share/hpcg
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'';
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meta = with lib; {
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description = "HPC conjugate gradient benchmark";
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homepage = "https://www.hpcg-benchmark.org";
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platforms = platforms.linux;
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license = licenses.bsd3;
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maintainers = [ maintainers.markuskowa ];
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};
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}
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