MGCFD-OP2: add new package (#32529)

1 files changed, 84 insertions, 0 deletions

diff --git a/var/spack/repos/builtin/packages/mgcfd-op2/package.py b/var/spack/repos/builtin/packages/mgcfd-op2/package.py
new file mode 100644
index 0000000000..b44a02655f
--- /dev/null
+++ b/var/spack/repos/builtin/packages/mgcfd-op2/package.py
@@ -0,0 +1,84 @@
+# 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 MgcfdOp2(MakefilePackage):
+    """Package for the OP2 port of MGCFD: A 3D unstructured multigrid,
+    finite-volume computational fluid dynamics (CFD) mini-app for inviscid-flow."""
+
+    # NOTE: This package is new and has been tested on a limited set of use cases:
+    # Graviton 2, Graviton 3:
+    #       Compilers: GCC 12.1.0, Arm 22.0.1, NVHPC 22.3
+    # ThunderX2 (Cray):
+    #       Compilers: GCC 10.3.0, CCE 11.0.4
+
+    homepage = "https://github.com/warwick-hpsc/MG-CFD-app-OP2"
+    git = "https://github.com/warwick-hpsc/MG-CFD-app-OP2.git"
+
+    maintainers = ["tomdeakin", "gihanmudalige", "bozbez"]
+
+    version("v1.0.0-rc1")
+
+    variant("mpi", default=False, description="Enable MPI support")
+
+    depends_on("gmake@4.3:")
+    # KaHIP is a new MGCFD-OP2 dependency and
+    # NVHPC builds require the latest develop branch at time of writing (Sept 22)
+    depends_on("kahip@develop+metis", when="+mpi")
+    depends_on("op2-dsl+mpi", when="+mpi")
+    depends_on("op2-dsl~mpi", when="~mpi")
+
+    def setup_build_environment(self, env):
+        compiler_map = {
+            "gcc": "gnu",
+            "arm": "clang",
+            "cce": "cray",
+            "nvhpc": "pgi",
+        }
+        if self.spec.compiler.name in compiler_map:
+            env.set("COMPILER", compiler_map[self.spec.compiler.name])
+        else:
+            env.set("COMPILER", self.spec.compiler.name)
+
+        # Set Fortran compiler to GCC if using Arm.
+        if self.spec.compiler.name == "arm":
+            env.set("OP2_F_COMPILER", "gnu")
+
+        # This overrides a flag issue in downstream OP2.
+        if self.spec.compiler.name == "nvhpc":
+            env.set("CFLAGS", "-O3 -DOMPI_SKIP_MPICXX -DMPICH_IGNORE_CXX_SEEK -DMPIPP_H")
+
+    def edit(self, spec, prefix):
+        # Makefile tweaks to ensure the correct compiler commands are called.
+        makefile = FileFilter("Makefile")
+        if self.spec.compiler.name == "arm":
+            makefile.filter(r"CPP := clang", r"CPP := armclang")
+            makefile.filter(r"-cxx=clang.*", "")
+
+        # Cray systems require use of 'cc' and 'CC' to call correct mpi wrappers
+        if self.spec.platform == "cray":
+            makefile.filter("mpicc", "cc")
+            makefile.filter("mpicxx", "CC")
+
+        if self.spec.compiler.name == "nvhpc":
+            makefile.filter("pgc", "nvc")
+
+    @property
+    def build_targets(self):
+        if "+mpi" in self.spec:
+            builds = ["mpi", "mpi_vec", "mpi_openmp"]
+            if "+cuda" in self.spec and spec.variants["cuda_arch"].value[0] != "none":
+                builds.append("mpi_cuda")
+        else:
+            builds = ["seq", "openmp"]
+            if "+cuda" in self.spec and spec.variants["cuda_arch"].value[0] != "none":
+                builds.append("cuda")
+        return builds
+
+    def install(self, spec, prefix):
+        mkdir(prefix.bin)
+        install_tree("bin", prefix.bin)