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# Copyright 2013-2019 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 llnl.util.tty as tty
import os
def detect_scheduler():
if (os.environ.get('CROSS') is None):
srunbin = which('srun')
if srunbin is None:
aprunbin = which('aprun')
if aprunbin is None:
tty.warn("CROSS has not been set, however "
"cannot detect scheduler.")
return 'none'
else:
tty.warn("CROSS has not been set, however "
"aprun has been found, assuming alps scheduler.")
return 'alps'
else:
tty.warn("CROSS has not been set, however "
"srun has been found, assuming slurm scheduler.")
return 'slurm'
else:
tty.warn("CROSS has been set to %s by the user."
% os.environ.get('CROSS'))
return 'user'
class Upcxx(Package):
"""UPC++ is a C++ library that supports Partitioned Global Address Space
(PGAS) programming, and is designed to interoperate smoothly and
efficiently with MPI, OpenMP, CUDA and AMTs. It leverages GASNet-EX to
deliver low-overhead, fine-grained communication, including Remote Memory
Access (RMA) and Remote Procedure Call (RPC)."""
homepage = "https://upcxx.lbl.gov"
version('2019.3.2', '844722cb0e8c0bc649017fce86469457')
variant('cuda', default=False,
description='Builds a CUDA-enabled version of UPC++')
variant('scheduler', values=('slurm', 'alps', 'user', 'none'),
default=detect_scheduler(),
description="Resource manager to use")
conflicts('scheduler=none', when='platform=cray',
msg='None is unacceptable on Cray.')
depends_on('cuda', when='+cuda')
def url_for_version(self, version):
if version > Version('2019.3.2'):
url = "https://bitbucket.org/berkeleylab/upcxx/downloads/upcxx-{0}.tar.gz"
else:
url = "https://bitbucket.org/berkeleylab/upcxx/downloads/upcxx-{0}-offline.tar.gz"
return url.format(version)
def setup_environment(self, spack_env, run_env):
if 'platform=cray' in self.spec:
spack_env.set('GASNET_CONFIGURE_ARGS', '--enable-mpi=probe')
if "scheduler=slurm" in self.spec:
tty.warn("CROSS has been automatically set to %s."
% 'cray-aries-slurm')
spack_env.set('CROSS', 'cray-aries-slurm')
elif "scheduler=alps" in self.spec:
tty.warn("CROSS has been automatically set to %s."
% 'cray-aries-alps')
spack_env.set('CROSS', 'cray-aries-alps')
if '+cuda' in self.spec:
spack_env.set('UPCXX_CUDA', '1')
spack_env.set('UPCXX_CUDA_NVCC', self.spec['cuda'].prefix.bin.nvcc)
def setup_dependent_package(self, module, dep_spec):
dep_spec.upcxx = self.prefix.bin.upcxx
def setup_dependent_environment(self, spack_env, run_env, dependent_spec):
spack_env.set('UPCXX_INSTALL', self.prefix)
spack_env.set('UPCXX', self.prefix.bin.upcxx)
if 'platform=cray' in self.spec:
spack_env.set('UPCXX_GASNET_CONDUIT', 'aries')
def install(self, spec, prefix):
installsh = Executable('./install')
installsh(prefix)
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