54 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
			
		
		
	
	
			54 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
{ stdenv, fetchPypi, python, buildPythonPackage, mpi, openssh }:
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buildPythonPackage rec {
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  pname = "mpi4py";
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  version = "3.0.0";
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  name = "${pname}-${version}";
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  src = fetchPypi {
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    inherit pname version;
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    sha256 = "1mzgd26dfv4vwbci8gq77ss9f0x26i9aqzq9b9vs9ndxhlnv0mxl";
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  };
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  passthru = {
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    inherit mpi;
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  };
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  postPatch = ''
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    substituteInPlace test/test_spawn.py --replace \
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                      "unittest.skipMPI('openmpi(<3.0.0)')" \
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                      "unittest.skipMPI('openmpi')"
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  '';
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  configurePhase = "";
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  installPhase = ''
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    mkdir -p "$out/lib/${python.libPrefix}/site-packages"
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    export PYTHONPATH="$out/lib/${python.libPrefix}/site-packages:$PYTHONPATH"
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    ${python}/bin/${python.executable} setup.py install \
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      --install-lib=$out/lib/${python.libPrefix}/site-packages \
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      --prefix="$out"
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    # --install-lib:
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    # sometimes packages specify where files should be installed outside the usual
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    # python lib prefix, we override that back so all infrastructure (setup hooks)
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    # work as expected
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    # Needed to run the tests reliably. See:
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    # https://bitbucket.org/mpi4py/mpi4py/issues/87/multiple-test-errors-with-openmpi-30
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    export OMPI_MCA_rmaps_base_oversubscribe=yes
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  '';
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  setupPyBuildFlags = ["--mpicc=${mpi}/bin/mpicc"];
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  buildInputs = [ mpi openssh ];
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  meta = {
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    description =
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      "Python bindings for the Message Passing Interface standard";
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    homepage = http://code.google.com/p/mpi4py/;
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    license = stdenv.lib.licenses.bsd3;
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  };
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}
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