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# Copyright 2013-2024 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)
import json
import os
from spack.package import *
class Nekcem(Package):
"""Spectral-element solver for Maxwell's equations, drift-diffusion
equations, and more."""
# Links to homepage and git
homepage = "https://nekcem.mcs.anl.gov"
git = "https://github.com/NekCEM/NekCEM.git"
# Variants
variant("mpi", default=True, description="Build with MPI")
# We only have a development version
version("develop", branch="development")
# The following hash-versions are used by the 'ceed' package
version("c8db04b", commit="c8db04b96f9b9cb0434ee75da711502fe95891b5")
version("0b8bedd", commit="0b8beddfdcca646bfcc866dfda1c5f893338399b")
version("7332619", commit="7332619b73d03868a256614b61794dce2d95b360")
# dependencies
depends_on("mpi", when="+mpi")
depends_on("blas")
depends_on("lapack")
@run_before("install")
def fortran_check(self):
if not self.compiler.fc:
msg = "NekCEM can not be built without a Fortran compiler."
raise RuntimeError(msg)
@run_after("install")
def check_install(self):
nekcem_test = join_path(self.prefix.bin, "NekCEM", "tests", "2dboxpec")
with working_dir(nekcem_test):
makenek = Executable(join_path(self.prefix.bin, "makenek"))
makenek(os.path.basename(nekcem_test))
if not os.path.isfile("nekcem"):
msg = "Cannot build example: %s" % nekcem_test
raise RuntimeError(msg)
def install(self, spec, prefix):
bin_dir = "bin"
nek = "nek"
configurenek = "configurenek"
makenek = "makenek"
fc = self.compiler.f77
cc = self.compiler.cc
fflags = spec.compiler_flags["fflags"]
cflags = spec.compiler_flags["cflags"]
ldflags = spec.compiler_flags["ldflags"]
if "+mpi" in spec:
fc = spec["mpi"].mpif77
cc = spec["mpi"].mpicc
with working_dir(bin_dir):
fflags = ["-O3"] + fflags
cflags = ["-O3"] + cflags
fflags += ["-I."]
cflags += ["-I.", "-DGLOBAL_LONG_LONG"]
if self.compiler.name == "gcc" or self.compiler.name == "clang":
# assuming 'clang' uses 'gfortran'
fflags += ["-fdefault-real-8", "-fdefault-double-8"]
cflags += ["-DUNDERSCORE"]
elif self.compiler.name == "intel":
fflags += ["-r8"]
cflags += ["-DUNDERSCORE"]
elif self.compiler.name == "xl" or self.compiler.name == "xl_r":
fflags += ["-qrealsize=8"]
cflags += ["-DPREFIX=jl_", "-DIBM"]
elif self.compiler.name == "pgi":
fflags += ["-r8"]
cflags += ["-DUNDERSCORE"]
error = Executable(fc)("empty.f", output=str, error=str, fail_on_error=False)
if "gfortran" in error or "GNU" in error or "gfortran" in fc:
# Use '-std=legacy' to suppress an error that used to be a
# warning in previous versions of gfortran.
fflags += ["-std=legacy"]
if "+mpi" in spec:
fflags += ["-DMPI", "-DMPIIO"]
cflags += ["-DMPI", "-DMPIIO"]
blas_lapack = spec["lapack"].libs + spec["blas"].libs
pthread_lib = find_system_libraries("libpthread")
ldflags += (blas_lapack + pthread_lib).ld_flags.split()
all_arch = {
"spack-arch": {
"FC": fc,
"FFLAGS": fflags,
"CC": cc,
"CFLAGS": cflags,
"LD": fc,
"LDFLAGS": ldflags,
}
}
os.rename("arch.json", "arch.json.orig")
with open("arch.json", "w") as file:
file.write(json.dumps(all_arch))
filter_file(r"^ARCH=.*$", "ARCH=spack-arch", "makenek")
filter_file(r"^NEK=.*", 'NEK="%s"' % prefix.bin.NekCEM, "makenek")
# Install NekCEM in prefix/bin
install_tree(self.stage.source_path, prefix.bin.NekCEM)
# Create symlinks to makenek, nek and configurenek scripts
with working_dir(prefix.bin):
os.symlink(os.path.join("NekCEM", bin_dir, makenek), makenek)
os.symlink(os.path.join("NekCEM", bin_dir, configurenek), configurenek)
os.symlink(os.path.join("NekCEM", bin_dir, nek), nek)
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