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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 *


@IntelOneApiPackage.update_description
class IntelOneapiMpi(IntelOneApiLibraryPackage):
    """Intel MPI Library is a multifabric message-passing library that
    implements the open-source MPICH specification. Use the library
    to create, maintain, and test advanced, complex applications
    that perform better on high-performance computing (HPC)
    clusters based on Intel processors.

    """

    maintainers = [
        "rscohn2",
    ]

    homepage = "https://software.intel.com/content/www/us/en/develop/tools/oneapi/components/mpi-library.html"

    version(
        "2021.8.0",
        url="https://registrationcenter-download.intel.com/akdlm/irc_nas/19131/l_mpi_oneapi_p_2021.8.0.25329_offline.sh",
        sha256="0fcb1171fc42fd4b2d863ae474c0b0f656b0fa1fdc1df435aa851ccd6d1eaaf7",
        expand=False,
    )
    version(
        "2021.7.1",
        url="https://registrationcenter-download.intel.com/akdlm/irc_nas/19010/l_mpi_oneapi_p_2021.7.1.16815_offline.sh",
        sha256="90e7804f2367d457cd4cbf7aa29f1c5676287aa9b34f93e7c9a19e4b8583fff7",
        expand=False,
    )
    version(
        "2021.7.0",
        url="https://registrationcenter-download.intel.com/akdlm/irc_nas/18926/l_mpi_oneapi_p_2021.7.0.8711_offline.sh",
        sha256="4eb1e1487b67b98857bc9b7b37bcac4998e0aa6d1b892b2c87b003bf84fb38e9",
        expand=False,
    )
    version(
        "2021.6.0",
        url="https://registrationcenter-download.intel.com/akdlm/irc_nas/18714/l_mpi_oneapi_p_2021.6.0.602_offline.sh",
        sha256="e85db63788c434d43c1378e5e2bf7927a75d11aee8e6b78ee0d933da920977a6",
        expand=False,
    )
    version(
        "2021.5.1",
        url="https://registrationcenter-download.intel.com/akdlm/irc_nas/18471/l_mpi_oneapi_p_2021.5.1.515_offline.sh",
        sha256="b992573959e39752e503e691564a0d876b099547c38b322d5775c5b06ec07a7f",
        expand=False,
    )
    version(
        "2021.5.0",
        url="https://registrationcenter-download.intel.com/akdlm/irc_nas/18370/l_mpi_oneapi_p_2021.5.0.495_offline.sh",
        sha256="3aae53fe77f7c6aac7a32b299c25d6ca9a00ba4e2d512a26edd90811e59e7471",
        expand=False,
    )
    version(
        "2021.4.0",
        url="https://registrationcenter-download.intel.com/akdlm/irc_nas/18186/l_mpi_oneapi_p_2021.4.0.441_offline.sh",
        sha256="cc4b7072c61d0bd02b1c431b22d2ea3b84b967b59d2e587e77a9e7b2c24f2a29",
        expand=False,
    )
    version(
        "2021.3.0",
        url="https://registrationcenter-download.intel.com/akdlm/irc_nas/17947/l_mpi_oneapi_p_2021.3.0.294_offline.sh",
        sha256="04c48f864ee4c723b1b4ca62f2bea8c04d5d7e3de19171fd62b17868bc79bc36",
        expand=False,
    )
    version(
        "2021.2.0",
        url="https://registrationcenter-download.intel.com/akdlm/irc_nas/17729/l_mpi_oneapi_p_2021.2.0.215_offline.sh",
        sha256="d0d4cdd11edaff2e7285e38f537defccff38e37a3067c02f4af43a3629ad4aa3",
        expand=False,
    )
    version(
        "2021.1.1",
        url="https://registrationcenter-download.intel.com/akdlm/irc_nas/17397/l_mpi_oneapi_p_2021.1.1.76_offline.sh",
        sha256="8b7693a156c6fc6269637bef586a8fd3ea6610cac2aae4e7f48c1fbb601625fe",
        expand=False,
    )

    variant("ilp64", default=False, description="Build with ILP64 support")
    variant(
        "generic-names",
        default=False,
        description="Use generic names, e.g mpicc instead of mpiicc",
    )
    variant(
        "external-libfabric", default=False, description="Enable external libfabric dependency"
    )
    depends_on("libfabric", when="+external-libfabric", type=("link", "run"))

    provides("mpi@:3.1")

    @property
    def component_dir(self):
        return "mpi"

    def setup_dependent_package(self, module, dep_spec):
        if "+generic-names" in self.spec:
            self.spec.mpicc = join_path(self.component_prefix.bin, "mpicc")
            self.spec.mpicxx = join_path(self.component_prefix.bin, "mpicxx")
            self.spec.mpif77 = join_path(self.component_prefix.bin, "mpif77")
            self.spec.mpifc = join_path(self.component_prefix.bin, "mpifc")
        else:
            self.spec.mpicc = join_path(self.component_prefix.bin, "mpiicc")
            self.spec.mpicxx = join_path(self.component_prefix.bin, "mpiicpc")
            self.spec.mpif77 = join_path(self.component_prefix.bin, "mpiifort")
            self.spec.mpifc = join_path(self.component_prefix.bin, "mpiifort")

    def setup_dependent_build_environment(self, env, dependent_spec):
        env.set("I_MPI_CC", spack_cc)
        env.set("I_MPI_CXX", spack_cxx)
        env.set("I_MPI_F77", spack_f77)
        env.set("I_MPI_F90", spack_fc)
        env.set("I_MPI_FC", spack_fc)

        # Set compiler wrappers for dependent build stage
        if "+generic-names" in self.spec:
            env.set("MPICC", join_path(self.component_prefix.bin, "mpicc"))
            env.set("MPICXX", join_path(self.component_prefix.bin, "mpicxx"))
            env.set("MPIF77", join_path(self.component_prefix.bin, "mpif77"))
            env.set("MPIF90", join_path(self.component_prefix.bin, "mpif90"))
            env.set("MPIFC", join_path(self.component_prefix.bin, "mpifc"))
        else:
            env.set("MPICC", join_path(self.component_prefix.bin, "mpiicc"))
            env.set("MPICXX", join_path(self.component_prefix.bin, "mpiicpc"))
            env.set("MPIF77", join_path(self.component_prefix.bin, "mpiifort"))
            env.set("MPIF90", join_path(self.component_prefix.bin, "mpiifort"))
            env.set("MPIFC", join_path(self.component_prefix.bin, "mpiifort"))

        env.set("I_MPI_ROOT", self.component_prefix)

    @property
    def headers(self):
        headers = find_headers("*", self.component_prefix.include)
        if "+ilp64" in self.spec:
            headers += find_headers("*", self.component_prefix.include.ilp64)
        return headers

    @property
    def libs(self):
        libs = []
        if "+ilp64" in self.spec:
            libs += find_libraries("libmpi_ilp64", self.component_prefix.lib.release)
        libs += find_libraries(["libmpicxx", "libmpifort"], self.component_prefix.lib)
        libs += find_libraries("libmpi", self.component_prefix.lib.release)
        libs += find_system_libraries(["libdl", "librt", "libpthread"])

        # Find libfabric for libmpi.so
        if "+external-libfabric" in self.spec:
            libs += self.spec["libfabric"].libs
        else:
            libs += find_libraries(["libfabric"], self.component_prefix.libfabric.lib)

        return libs

    @run_after("install")
    def fix_wrappers(self):
        # When spack builds from source
        # fix I_MPI_SUBSTITUTE_INSTALLDIR and
        #   __EXEC_PREFIX_TO_BE_FILLED_AT_INSTALL_TIME__
        for wrapper in ["mpif77", "mpif90", "mpigcc", "mpigxx", "mpiicc", "mpiicpc", "mpiifort"]:
            filter_file(
                r"I_MPI_SUBSTITUTE_INSTALLDIR|" r"__EXEC_PREFIX_TO_BE_FILLED_AT_INSTALL_TIME__",
                self.component_prefix,
                self.component_prefix.bin.join(wrapper),
                backup=False,
            )