celeritas: new package (#31834)

ROOT also needs updating for downstream macOS packages

2 files changed, 91 insertions, 0 deletions

diff --git a/var/spack/repos/builtin/packages/celeritas/package.py b/var/spack/repos/builtin/packages/celeritas/package.py
new file mode 100644
index 0000000000..4b88702d53
--- /dev/null
+++ b/var/spack/repos/builtin/packages/celeritas/package.py
@@ -0,0 +1,88 @@
+# 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 Celeritas(CMakePackage, CudaPackage, ROCmPackage):
+    """Celeritas is a new Monte Carlo transport code designed for
+    high-performance (GPU-targeted) simulation of high-energy physics
+    detectors.
+    """
+
+    homepage = "https://github.com/celeritas-project/celeritas"
+    url = "https://github.com/celeritas-project/celeritas/archive/refs/tags/v0.1.0.tar.gz"
+
+    maintainers = ["sethrj"]
+
+    version("0.1.0", sha256="0f5f4f05c78f115bfaf45e41913a990a2a5bd3de86513ff51570c9c6652fcd1d")
+
+    _cxxstd_values = ("14", "17")
+
+    # Note: cuda and rocm variants are defined by mixin classes
+    variant(
+        "cxxstd",
+        default="17",
+        values=_cxxstd_values,
+        multi=False,
+        description="C++ standard version",
+    )
+    variant("debug", default=False, description="Enable runtime debug assertions")
+    variant("doc", default=False, description="Build and install documentation")
+    variant("geant4", default=True, description="Use Geant4 data")
+    variant("hepmc3", default=True, description="Use HepMC3 I/O interfaces")
+    variant("openmp", default=False, description="Use OpenMP multithreading")
+    variant("root", default=False, description="Use ROOT I/O")
+    variant("shared", default=True, description="Build shared libraries")
+    variant("swig", default=False, description="Generate SWIG Python bindings")
+    variant("vecgeom", default=True, description="Use VecGeom geometry")
+
+    depends_on("cmake@3.13:", type="build")
+    depends_on("cmake@3.18:", type="build", when="+cuda+vecgeom")
+    depends_on("cmake@3.22:", type="build", when="+rocm")
+
+    depends_on("nlohmann-json")
+    depends_on("geant4@10.6:", when="+geant4")
+    depends_on("hepmc3", when="+hepmc3")
+    depends_on("root", when="+root")
+    depends_on("swig", when="+swig")
+    depends_on("vecgeom", when="+vecgeom")
+
+    depends_on("python", type="build")
+    depends_on("doxygen", type="build", when="+doc")
+    depends_on("py-breathe", type="build", when="+doc")
+    depends_on("py-sphinx", type="build", when="+doc")
+
+    for _std in _cxxstd_values:
+        depends_on("geant4 cxxstd=" + _std, when="+geant4 cxxstd=" + _std)
+        depends_on("root cxxstd=" + _std, when="+root cxxstd=" + _std)
+        depends_on("vecgeom cxxstd=" + _std, when="+vecgeom cxxstd=" + _std)
+
+    depends_on("vecgeom +gdml@1.1.17:", when="+vecgeom")
+    depends_on("vecgeom +cuda", when="+vecgeom +cuda")
+
+    conflicts("+rocm", when="+cuda", msg="AMD and NVIDIA accelerators are incompatible")
+    conflicts("+rocm", when="+vecgeom", msg="HIP support is only available with ORANGE")
+    conflicts("^vecgeom+shared@1.2.0", when="+vecgeom +cuda")
+
+    def cmake_args(self):
+        define = self.define
+        from_variant = self.define_from_variant
+        args = [
+            from_variant("BUILD_SHARED_LIBS", "shared"),
+            from_variant("CELERITAS_DEBUG", "debug"),
+            from_variant("CELERITAS_BUILD_DOCS", "doc"),
+            define("CELERITAS_BUILD_DEMOS", False),
+            define("CELERITAS_BUILD_TESTS", False),
+            from_variant("Celeritas_USE_HIP", "rocm"),
+            define("CELERITAS_USE_MPI", False),
+            define("CELERITAS_USE_JSON", True),
+            define("CELERITAS_USE_Python", True),
+        ]
+
+        for pkg in ["CUDA", "Geant4", "HepMC3", "OpenMP", "ROOT", "SWIG", "VecGeom"]:
+            args.append(from_variant("CELERITAS_USE_" + pkg, pkg.lower()))
+
+        return args
diff --git a/var/spack/repos/builtin/packages/root/package.py b/var/spack/repos/builtin/packages/root/package.py
index 4959b884e4..2626f71f80 100644
--- a/var/spack/repos/builtin/packages/root/package.py
+++ b/var/spack/repos/builtin/packages/root/package.py
@@ -611,6 +611,9 @@ class Root(CMakePackage):
         env.prepend_path("ROOT_INCLUDE_PATH", dependent_spec.prefix.include)
         if "+rpath" not in self.spec:
             env.prepend_path("LD_LIBRARY_PATH", self.prefix.lib.root)
+        if "platform=darwin" in spec:
+            # Newer deployment targets cause fatal errors in rootcling
+            env.unset("MACOSX_DEPLOYMENT_TARGET")
 
     def setup_dependent_run_environment(self, env, dependent_spec):
         env.set("ROOTSYS", self.prefix)