New package: channelflow (#9111)

var/spack/repos/builtin/packages/channelflow/package.py

@@ -0,0 +1,104 @@
+##############################################################################
+# Copyright (c) 2013-2018, Lawrence Livermore National Security, LLC.
+# Produced at the Lawrence Livermore National Laboratory.
+#
+# This file is part of Spack.
+# Created by Todd Gamblin, tgamblin@llnl.gov, All rights reserved.
+# LLNL-CODE-647188
+#
+# For details, see https://github.com/spack/spack
+# Please also see the NOTICE and LICENSE files for our notice and the LGPL.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License (as
+# published by the Free Software Foundation) version 2.1, February 1999.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the IMPLIED WARRANTY OF
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the terms and
+# conditions of the GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+##############################################################################
+from spack import *
+
+
+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'
+    url = 'https://github.com/epfl-ecps/channelflow.git'
+
+    version(
+        'develop',
+        git='https://github.com/epfl-ecps/channelflow.git',
+        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', when='netcdf=serial')
+    depends_on('netcdf+mpi', when='netcdf=parallel')
+
+    # Python bindings
+    depends_on('boost+python', 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