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# Copyright 2013-2019 The Meson development team
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import functools
import typing as T
from .base import DependencyMethods, detect_compiler, SystemDependency
from .cmake import CMakeDependency
from .pkgconfig import PkgConfigDependency
from .factory import factory_methods
if T.TYPE_CHECKING:
from . factory import DependencyGenerator
from ..environment import Environment, MachineChoice
@factory_methods({DependencyMethods.PKGCONFIG, DependencyMethods.CMAKE, DependencyMethods.SYSTEM})
def coarray_factory(env: 'Environment',
for_machine: 'MachineChoice',
kwargs: T.Dict[str, T.Any],
methods: T.List[DependencyMethods]) -> T.List['DependencyGenerator']:
fcid = detect_compiler('coarray', env, for_machine, 'fortran').get_id()
candidates: T.List['DependencyGenerator'] = []
if fcid == 'gcc':
# OpenCoarrays is the most commonly used method for Fortran Coarray with GCC
if DependencyMethods.PKGCONFIG in methods:
for pkg in ['caf-openmpi', 'caf']:
candidates.append(functools.partial(
PkgConfigDependency, pkg, env, kwargs, language='fortran'))
if DependencyMethods.CMAKE in methods:
if 'modules' not in kwargs:
kwargs['modules'] = 'OpenCoarrays::caf_mpi'
candidates.append(functools.partial(
CMakeDependency, 'OpenCoarrays', env, kwargs, language='fortran'))
if DependencyMethods.SYSTEM in methods:
candidates.append(functools.partial(CoarrayDependency, env, kwargs))
return candidates
class CoarrayDependency(SystemDependency):
"""
Coarrays are a Fortran 2008 feature.
Coarrays are sometimes implemented via external library (GCC+OpenCoarrays),
while other compilers just build in support (Cray, IBM, Intel, NAG).
Coarrays may be thought of as a high-level language abstraction of
low-level MPI calls.
"""
def __init__(self, environment: 'Environment', kwargs: T.Dict[str, T.Any]) -> None:
super().__init__('coarray', environment, kwargs, language='fortran')
kwargs['required'] = False
kwargs['silent'] = True
cid = self.get_compiler().get_id()
if cid == 'gcc':
# Fallback to single image
self.compile_args = ['-fcoarray=single']
self.version = 'single image (fallback)'
self.is_found = True
elif cid == 'intel':
# Coarrays are built into Intel compilers, no external library needed
self.is_found = True
self.link_args = ['-coarray=shared']
self.compile_args = self.link_args
elif cid == 'intel-cl':
# Coarrays are built into Intel compilers, no external library needed
self.is_found = True
self.compile_args = ['/Qcoarray:shared']
elif cid == 'nagfor':
# NAG doesn't require any special arguments for Coarray
self.is_found = True
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