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# Copyright 2013-2023 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 *


class Eigenexa(AutotoolsPackage):
    """EigenExa is a high-performance eigenvalue solver."""

    homepage = "https://www.r-ccs.riken.jp/labs/lpnctrt/projects/eigenexa/"
    url = "https://www.r-ccs.riken.jp/labs/lpnctrt/projects/eigenexa/EigenExa-2.6.tgz"

    version("2.6", sha256="a1a4e571a8051443f28e7ea4889272993452a4babd036d2b4dd6b28154302f95")

    depends_on("autoconf", type="build")
    depends_on("automake", type="build")
    depends_on("libtool", type="build")
    depends_on("m4", type="build")
    depends_on("mpi")
    depends_on("lapack")
    depends_on("scalapack")

    patch("fj_compiler.patch", when="%fj")
    patch("gcc_compiler.patch", when="%gcc")

    parallel = False
    force_autoreconf = True

    def setup_build_environment(self, env):
        env.set("FC", self.spec["mpi"].mpifc, force=True)
        env.set("F77", self.spec["mpi"].mpif77, force=True)
        env.set("CC", self.spec["mpi"].mpicc, force=True)
        env.set(
            "LAPACK_LIBS",
            "{0} {1}".format(
                self.spec["lapack"].libs.ld_flags, self.spec["scalapack"].libs.ld_flags
            ),
        )
        env.set(
            "LAPACK_PATH",
            "{0}".format(
                ":".join(
                    self.spec["lapack"].libs.directories + self.spec["scalapack"].libs.directories
                )
            ),
        )

    @run_after("install")
    def cache_test_sources(self):
        """Save off benchmark files for stand-alone tests."""
        self.cache_extra_test_sources("benchmark")

    def test_benchmarks(self):
        """run benchmark checks"""
        # NOTE: This package would ideally build the test program using
        #   the installed software *each* time the tests are run since
        #   this package installs a library.

        test_cache_dir = join_path(self.test_suite.current_test_cache_dir, "benchmark")
        test_data_dir = self.test_suite.current_test_data_dir

        with working_dir(test_data_dir):
            opts = [
                "run-test.sh",
                self.spec["mpi"].prefix.bin.mpirun,
                "-n",
                "1",
                join_path(test_cache_dir, "eigenexa_benchmark"),
                "-f",
                join_path(test_cache_dir, "IN"),
            ]
            env["OMP_NUM_THREADS"] = "1"
            sh = which("sh")
            out = sh(*opts, output=str.split, error=str.split)
            assert "EigenExa Test Passed !" in out