New Package: ChaNGa (#17442)

* WIP: changa package

* changa cleanup

* flake8 format

* adds master branch to ChaNGa

* positional arguments

* use install instead of copy

1 files changed, 46 insertions, 0 deletions

diff --git a/var/spack/repos/builtin/packages/changa/package.py b/var/spack/repos/builtin/packages/changa/package.py
new file mode 100644
index 0000000000..a6adb48c38
--- /dev/null
+++ b/var/spack/repos/builtin/packages/changa/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 Changa(AutotoolsPackage):
+    """ChaNGa (Charm N-body GrAvity solver) is a code to perform collisionless
+    N-body simulations. It can perform cosmological simulations with periodic
+    boundary conditions in comoving coordinates or simulations of isolated
+    stellar systems. It also can include hydrodynamics using the Smooth
+    Particle Hydrodynamics (SPH) technique. It uses a Barnes-Hut tree to
+    calculate gravity, with hexadecapole expansion of nodes and
+    Ewald summation for periodic forces. Timestepping is done with a leapfrog
+    integrator with individual timesteps for each particle."""
+
+    homepage = "http://faculty.washington.edu/trq/hpcc/tools/changa.html"
+    url      = "https://github.com/N-BodyShop/changa/archive/v3.4.tar.gz"
+    git      = "https://github.com/N-BodyShop/changa.git"
+
+    version('master', branch='master')
+    version('3.4', sha256='c2bceb6ac00025dfd704bb6960bc17c6df7c746872185845d1e75f47e6ce2a94')
+    patch("fix_configure_path.patch")
+
+    resource(
+        name="utility",
+        url="https://github.com/N-BodyShop/utility/archive/v3.4.tar.gz",
+        sha256="19f9f09023ce9d642e848a36948788fb29cd7deb8e9346cdaac4c945f1416667",
+        placement="utility"
+    )
+
+    depends_on("charmpp build-target=ChaNGa")
+
+    def configure_args(self):
+        args = []
+        args.append("STRUCT_DIR={0}/utility/structures"
+                    .format(self.stage.source_path))
+        return args
+
+    def install(self, spec, prefix):
+        with working_dir(self.build_directory):
+            mkdirp(prefix.bin)
+            install('ChaNGa', prefix.bin)
+            install('charmrun', prefix.bin)