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# Copyright 1999-2024 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
FORTRAN_NEEDED=fortran
inherit cuda flag-o-matic fortran-2 libtool
MY_P=${P/-mpi}
IUSE_OPENMPI_FABRICS="
openmpi_fabrics_ofed
openmpi_fabrics_knem"
IUSE_OPENMPI_RM="
openmpi_rm_pbs
openmpi_rm_slurm"
DESCRIPTION="A high-performance message passing library (MPI)"
HOMEPAGE="https://www.open-mpi.org"
SRC_URI="https://www.open-mpi.org/software/ompi/v$(ver_cut 1-2)/downloads/${MY_P}.tar.bz2"
S="${WORKDIR}/${MY_P}"
LICENSE="BSD"
SLOT="0"
KEYWORDS="~amd64 -arm -ppc -x86 ~amd64-linux"
IUSE="cma cuda fortran ipv6 peruse romio valgrind
${IUSE_OPENMPI_FABRICS} ${IUSE_OPENMPI_RM}"
REQUIRED_USE="
openmpi_rm_slurm? ( !openmpi_rm_pbs )
openmpi_rm_pbs? ( !openmpi_rm_slurm )
"
RDEPEND="
!sys-cluster/mpich
!sys-cluster/mpich2
!sys-cluster/nullmpi
!sys-cluster/prrte
>=dev-libs/libevent-2.0.22:=[threads(+)]
>=sys-apps/hwloc-2.0.2:=
sys-cluster/pmix:=
>=sys-libs/zlib-1.2.8-r1
cuda? ( >=dev-util/nvidia-cuda-toolkit-6.5.19-r1:= )
openmpi_fabrics_ofed? ( sys-cluster/rdma-core )
openmpi_fabrics_knem? ( sys-cluster/knem )
openmpi_rm_pbs? ( sys-cluster/torque )
openmpi_rm_slurm? ( sys-cluster/slurm )
"
DEPEND="${RDEPEND}
valgrind? ( dev-debug/valgrind )"
pkg_setup() {
fortran-2_pkg_setup
elog
elog "OpenMPI has an overwhelming count of configuration options."
elog "Don't forget the EXTRA_ECONF environment variable can let you"
elog "specify configure options if you find them necessary."
elog
}
src_prepare() {
default
elibtoolize
# Avoid test which ends up looking at system mounts
echo "int main() { return 0; }" > test/util/opal_path_nfs.c || die
# Necessary for scalibility, see
# http://www.open-mpi.org/community/lists/users/2008/09/6514.php
echo 'oob_tcp_listen_mode = listen_thread' \
>> opal/etc/openmpi-mca-params.conf || die
}
src_configure() {
# -Werror=lto-type-mismatch, -Werror=strict-aliasing
# The former even prevents successfully running ./configure, but both appear
# at `make` time as well.
# https://bugs.gentoo.org/913040
# https://github.com/open-mpi/ompi/issues/12674
# https://github.com/open-mpi/ompi/issues/12675
append-flags -fno-strict-aliasing
filter-lto
local myconf=(
--disable-mpi-java
# configure takes a looooong time, but upstream currently force
# constriants on caching:
# https://github.com/open-mpi/ompi/blob/9eec56222a5c98d13790c9ee74877f1562ac27e8/config/opal_config_subdir.m4#L118
# so no --cache-dir for now.
--enable-mpi-fortran=$(usex fortran all no)
--enable-prte-prefix-by-default
--enable-pretty-print-stacktrace
--sysconfdir="${EPREFIX}/etc/${PN}"
--with-hwloc=external
--with-libevent=external
# Oiriginally supposed to be re-enabled for 5.0!
# See https://github.com/open-mpi/ompi/issues/9697#issuecomment-1003746357
# and https://bugs.gentoo.org/828123#c14
#
# However as of 5.0.3 the docs still say:
#
# As such, supporting data heterogeneity is a feature that has fallen
# into disrepair and is currently known to be broken in this release
# of Open MPI.
--disable-heterogeneous
$(use_enable ipv6)
$(use_enable peruse)
$(use_enable romio io-romio)
$(use_with cma)
$(use_with cuda cuda "${EPREFIX}"/opt/cuda)
$(use_with valgrind)
$(use_with openmpi_fabrics_knem knem "${EPREFIX}"/usr)
$(use_with openmpi_rm_pbs tm)
$(use_with openmpi_rm_slurm slurm)
)
CONFIG_SHELL="${BROOT}"/bin/bash econf "${myconf[@]}"
}
src_compile() {
emake V=1
}
src_test() {
emake -C test check
}
src_install() {
default
# Remove la files, no static libs are installed and we have pkg-config
find "${ED}" -name '*.la' -delete || die
}
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