neve: add new package (#34596)

Co-authored-by: WladIMirG <WladIMirG@users.noreply.github.com>

var/spack/repos/builtin/packages/neve/package.py

@@ -0,0 +1,43 @@
+# Copyright 2013-2022 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.package import *
+
+
+class Neve(MakefilePackage):
+    """Benchmark to study communication and memory-access performance of graphs."""
+
+    homepage = "https://github.com/ECP-ExaGraph"
+    git = "https://github.com/ECP-ExaGraph/neve.git"
+
+    version("master", branch="master")
+
+    variant("openmp", default=True, description="Build with OpenMP support")
+    variant("opt", default=True, description="Optimization flags")
+
+    depends_on("mpi")
+
+    @property
+    def build_targets(self):
+        targets = []
+        cxxflags = ["-std=c++11 -g"]
+        ldflags = []
+
+        if "+openmp" in self.spec:
+            cxxflags.append(self.compiler.openmp_flag)
+            ldflags.append(self.compiler.openmp_flag)
+        if "+opt" in self.spec:
+            cxxflags.append(" -O3 ")
+
+        targets.append("CXXFLAGS={0}".format(" ".join(cxxflags)))
+        targets.append("OPTFLAGS={0}".format(" ".join(ldflags)))
+        targets.append("CXX={0}".format(self.spec["mpi"].mpicxx))
+
+        return targets
+
+    def install(self, spec, prefix):
+        mkdirp(prefix.bin)
+        install("neve", prefix.bin)