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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)
from spack.package import *
from spack.pkg.builtin.boost import Boost
class Channelflow(CMakePackage):
"""Channelflow is a software system for numerical analysis of the
incompressible fluid flow in channel geometries, written in C++.
"""
homepage = "https://github.com/epfl-ecps/channelflow"
git = "https://github.com/epfl-ecps/channelflow.git"
license("GPL-2.0-only")
version("master", branch="master")
variant("shared", default=True, description="Build shared libs")
variant("mpi", default=True, description="Enable MPI parallelism")
variant("hdf5", default=True, description="Enable support for HDF5 I/O")
variant(
"netcdf",
default="serial",
values=("none", "serial", "parallel"),
multi=False,
description="Level of support for NetCDF I/O",
)
variant("python", default=False, description="Build python bindings")
depends_on("eigen")
depends_on("fftw")
# MPI related constraints
depends_on("mpi", when="+mpi")
depends_on("fftw+mpi", when="+mpi")
# Support for different I/O formats
depends_on("hdf5+cxx", when="+hdf5")
depends_on("netcdf-c", when="netcdf=serial")
depends_on("netcdf-c+mpi", when="netcdf=parallel")
# Python bindings
depends_on("boost+python", when="+python")
# TODO: replace this with an explicit list of components of Boost,
# for instance depends_on('boost +filesystem')
# See https://github.com/spack/spack/pull/22303 for reference
depends_on(Boost.with_default_variants, when="+python")
conflicts("~mpi", when="netcdf=parallel", msg="Parallel NetCDF requires MPI")
conflicts(
"+mpi", when="+python", msg="Building python bindings is possible only for the serial code"
)
conflicts("~mpi", when="^mpi", msg="There should be no MPI in the DAG when ~mpi is active")
def cmake_args(self):
spec = self.spec
on_or_off = lambda predicate: "ON" if predicate else "OFF"
args = [
"-DBUILD_SHARED_LIBS:BOOL={0}".format(on_or_off("+shared" in spec)),
"-DUSE_MPI:BOOL={0}".format(on_or_off("+mpi" in spec)),
"-DWITH_HDF5CXX:BOOL={0}".format(on_or_off("+hdf5" in spec)),
"-DWITH_PYTHON:BOOL={0}".format(on_or_off("+python" in spec)),
]
netcdf_str = {"none": "OFF", "serial": "Serial", "parallel": "Parallel"}
args.append("-DWITH_NETCDF:STRING={0}".format(netcdf_str[spec.variants["netcdf"].value]))
# Set an MPI compiler for parallel builds
if "+mpi" in spec:
args.append("-DCMAKE_CXX_COMPILER:PATH={0}".format(spec["mpi"].mpicxx))
return args
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