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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.
from ..mesonlib import listify
from .base import CMakeDependency, DependencyMethods, ExternalDependency, PkgConfigDependency
class CoarrayDependency(ExternalDependency):
"""
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, kwargs: dict):
super().__init__('coarray', environment, kwargs, language='fortran')
kwargs['required'] = False
kwargs['silent'] = True
self.is_found = False
methods = listify(self.methods)
cid = self.get_compiler().get_id()
if cid == 'gcc':
""" OpenCoarrays is the most commonly used method for Fortran Coarray with GCC """
if set([DependencyMethods.AUTO, DependencyMethods.PKGCONFIG]).intersection(methods):
for pkg in ['caf-openmpi', 'caf']:
pkgdep = PkgConfigDependency(pkg, environment, kwargs, language=self.language)
if pkgdep.found():
self.compile_args = pkgdep.get_compile_args()
self.link_args = pkgdep.get_link_args()
self.version = pkgdep.get_version()
self.is_found = True
self.pcdep = pkgdep
return
if set([DependencyMethods.AUTO, DependencyMethods.CMAKE]).intersection(methods):
if not kwargs.get('modules'):
kwargs['modules'] = 'OpenCoarrays::caf_mpi'
cmakedep = CMakeDependency('OpenCoarrays', environment, kwargs, language=self.language)
if cmakedep.found():
self.compile_args = cmakedep.get_compile_args()
self.link_args = cmakedep.get_link_args()
self.version = cmakedep.get_version()
self.is_found = True
return
if DependencyMethods.AUTO in methods:
# fallback to single image
self.compile_args = ['-fcoarray=single']
self.version = 'single image (fallback)'
self.is_found = True
return
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
@staticmethod
def get_methods():
return [DependencyMethods.AUTO, DependencyMethods.CMAKE, DependencyMethods.PKGCONFIG]
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