1 files changed, 46 insertions, 0 deletions
diff --git a/var/spack/repos/builtin/packages/knem/package.py b/var/spack/repos/builtin/packages/knem/package.py
new file mode 100644
index 0000000000..473a178319
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+++ b/var/spack/repos/builtin/packages/knem/package.py
@@ -0,0 +1,46 @@
+# Copyright 2013-2020 Lawrence Livermore National Security, LLC and other
+# Spack Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+from spack import *
+
+
+class Knem(AutotoolsPackage):
+    """KNEM is a Linux kernel module enabling high-performance intra-node MPI
+    communication for large messages."""
+
+    homepage = "http://knem.gforge.inria.fr"
+    url = "http://gforge.inria.fr/frs/download.php/37186/knem-1.1.3.tar.gz"
+    list_url = "http://knem.gforge.inria.fr/download"
+
+    maintainers = ['skosukhin']
+
+    version('1.1.3', sha256='50d3c4a20c140108b8ce47aaafd0ade0927d6f507e1b5cc690dd6bddeef30f60')
+
+    variant('hwloc', default=True,
+            description='Enable hwloc in the user-space tools')
+
+    depends_on('hwloc', when='+hwloc')
+    depends_on('pkgconfig', type='build', when='+hwloc')
+
+    # The support for hwloc was added in 0.9.1:
+    conflicts('+hwloc', when='@:0.9.0')
+
+    # Ideally, we should list all non-Linux-based platforms here:
+    conflicts('platform=darwin')
+
+    # All compilers except for gcc are in conflict:
+    for __compiler in spack.compilers.supported_compilers():
+        if __compiler != 'gcc':
+            conflicts('%{0}'.format(__compiler),
+                      msg='Linux kernel module must be compiled with gcc')
+
+    @run_before('build')
+    def override_kernel_compiler(self):
+        # Override the compiler for kernel module source files. We need
+        # this additional argument for all installation phases.
+        make.add_default_arg('CC={0}'.format(spack_cc))
+
+    def configure_args(self):
+        return self.enable_or_disable('hwloc')