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# Copyright 2013-2021 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 *
import os
import json
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 test_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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