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+# Copyright 2013-2018 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 *
+
+
+class Elpa(AutotoolsPackage):
+ """Eigenvalue solvers for Petaflop-Applications (ELPA)"""
+
+ homepage = 'http://elpa.mpcdf.mpg.de/'
+ url = 'http://elpa.mpcdf.mpg.de/elpa-2015.11.001.tar.gz'
+
+ version('2018.05.001.rc1', 'ccd77bd8036988ee624f43c04992bcdd')
+ version('2017.11.001', '4a437be40cc966efb07aaab84c20cd6e', preferred=True)
+ version('2017.05.003', '7c8e5e58cafab212badaf4216695700f')
+ version('2017.05.002', 'd0abc1ac1f493f93bf5e30ec8ab155dc')
+ version('2016.11.001.pre', '5656fd066cf0dcd071dbcaf20a639b37')
+ version('2016.05.004', 'c0dd3a53055536fc3a2a221e78d8b376')
+ version('2016.05.003', '88a9f3f3bfb63e16509dd1be089dcf2c')
+ version('2015.11.001', 'de0f35b7ee7c971fd0dca35c900b87e6')
+
+ variant('openmp', default=False, description='Activates OpenMP support')
+ variant('optflags', default=True, description='Build with optimization flags')
+
+ depends_on('mpi')
+ depends_on('blas')
+ depends_on('lapack')
+ depends_on('scalapack')
+
+ def url_for_version(self, version):
+ t = 'http://elpa.mpcdf.mpg.de/html/Releases/{0}/elpa-{0}.tar.gz'
+ if version < Version('2016.05.003'):
+ t = 'http://elpa.mpcdf.mpg.de/elpa-{0}.tar.gz'
+ return t.format(str(version))
+
+ @property
+ def libs(self):
+ libname = 'libelpa_openmp' if '+openmp' in self.spec else 'libelpa'
+ return find_libraries(
+ libname, root=self.prefix, shared=True, recursive=True
+ )
+
+ build_directory = 'spack-build'
+
+ def setup_environment(self, spack_env, run_env):
+ # TUTORIAL: set the following environment variables:
+ #
+ # CC=spec['mpi'].mpicc
+ # FC=spec['mpi'].mpifc
+ # CXX=spec['mpi'].mpicxx
+ # SCALAPACK_LDFLAGS=spec['scalapack'].libs.joined()
+ #
+ # and append the following flags:
+ #
+ # LDFLAGS -> spec['lapack'].libs.search_flags
+ # LIBS -> spec['lapack'].libs.link_flags
+ pass
+
+ def configure_args(self):
+ # TODO: set optimum flags for platform+compiler combo, see
+ # https://github.com/hfp/xconfigure/tree/master/elpa
+ # also see:
+ # https://src.fedoraproject.org/cgit/rpms/elpa.git/
+ # https://packages.qa.debian.org/e/elpa.html
+ options = []
+ # without -march=native there is configure error for 2017.05.02
+ # Could not compile test program, try with --disable-sse, or
+ # adjust the C compiler or CFLAGS
+ if '+optflags' in self.spec:
+ options.extend([
+ 'FCFLAGS=-O2 -march=native -ffree-line-length-none',
+ 'CFLAGS=-O2 -march=native'
+ ])
+ if '+openmp' in self.spec:
+ options.append('--enable-openmp')
+ return options