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# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=7
FORTRAN_NEEDED=fortran
inherit autotools cuda flag-o-matic fortran-2 toolchain-funcs
MY_P=${P/-mpi}
S="${WORKDIR}"/${MY_P}
IUSE_OPENMPI_FABRICS="
openmpi_fabrics_ofed
openmpi_fabrics_knem
openmpi_fabrics_psm"
IUSE_OPENMPI_RM="
openmpi_rm_pbs
openmpi_rm_slurm"
IUSE_OPENMPI_OFED_FEATURES="
openmpi_ofed_features_control-hdr-padding
openmpi_ofed_features_connectx-xrc
openmpi_ofed_features_rdmacm
openmpi_ofed_features_dynamic-sl
openmpi_ofed_features_failover"
DESCRIPTION="A high-performance message passing library (MPI)"
HOMEPAGE="https://www.open-mpi.org"
SRC_URI="https://www.open-mpi.org/software/ompi/v$(ver_cut 1-2)/downloads/${MY_P}.tar.bz2"
LICENSE="BSD"
SLOT="0"
KEYWORDS="~alpha ~amd64 ~ia64 ~ppc ~ppc64 ~sparc ~x86 ~amd64-linux"
IUSE="cma cuda +cxx fortran heterogeneous ipv6 mpi-threads romio threads vt
${IUSE_OPENMPI_FABRICS} ${IUSE_OPENMPI_RM} ${IUSE_OPENMPI_OFED_FEATURES}"
REQUIRED_USE="openmpi_rm_slurm? ( !openmpi_rm_pbs )
openmpi_rm_pbs? ( !openmpi_rm_slurm )
openmpi_fabrics_psm? ( openmpi_fabrics_ofed )
openmpi_ofed_features_control-hdr-padding? ( openmpi_fabrics_ofed )
openmpi_ofed_features_connectx-xrc? ( openmpi_fabrics_ofed )
openmpi_ofed_features_rdmacm? ( openmpi_fabrics_ofed )
openmpi_ofed_features_dynamic-sl? ( openmpi_fabrics_ofed )
openmpi_ofed_features_failover? ( openmpi_fabrics_ofed )"
MPI_UNCLASSED_DEP_STR="
vt? (
!dev-libs/libotf
!app-text/lcdf-typetools
)"
RDEPEND="
!sys-cluster/mpich
!sys-cluster/mpich2
!sys-cluster/pmix
dev-libs/libevent:=
dev-libs/libltdl:0
<sys-apps/hwloc-2:=
cuda? ( dev-util/nvidia-cuda-toolkit )
openmpi_fabrics_ofed? ( sys-fabric/ofed )
openmpi_fabrics_knem? ( sys-cluster/knem )
openmpi_fabrics_psm? ( sys-fabric/infinipath-psm )
openmpi_rm_pbs? ( sys-cluster/torque )
openmpi_rm_slurm? ( sys-cluster/slurm )
openmpi_ofed_features_rdmacm? ( sys-fabric/librdmacm )
"
DEPEND="${RDEPEND}"
pkg_setup() {
fortran-2_pkg_setup
if use mpi-threads; then
echo
ewarn "WARNING: use of MPI_THREAD_MULTIPLE is still disabled by"
ewarn "default and officially unsupported by upstream."
ewarn "You may stop now and set USE=-mpi-threads"
echo
fi
echo
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."
echo
}
src_prepare() {
default
# Necessary for scalibility, see
# http://www.open-mpi.org/community/lists/users/2008/09/6514.php
if use threads; then
echo 'oob_tcp_listen_mode = listen_thread' \
>> opal/etc/openmpi-mca-params.conf
fi
# https://github.com/open-mpi/ompi/issues/163
eapply "${FILESDIR}"/openmpi-ltdl.patch
AT_M4DIR=config eautoreconf
}
src_configure() {
local myconf=(
--sysconfdir="${EPREFIX}/etc/${PN}"
--enable-pretty-print-stacktrace
--enable-orterun-prefix-by-default
--with-hwloc="${EPREFIX}/usr"
--with-libltdl=external
)
if use mpi-threads; then
myconf+=(--enable-mpi-threads
--enable-opal-multi-threads)
fi
if use fortran; then
if [[ $(tc-getFC) =~ g77 ]]; then
myconf+=(--disable-mpi-f90)
elif [[ $(tc-getFC) =~ if ]]; then
# Enabled here as gfortran compile times are huge with this enabled.
myconf+=(--with-mpi-f90-size=medium)
fi
else
myconf+=(--disable-mpi-f90 --disable-mpi-f77)
fi
! use vt && myconf+=(--enable-contrib-no-build=vt)
econf "${myconf[@]}" \
$(use_enable cxx mpi-cxx) \
$(use_with cma) \
$(use_with cuda cuda "${EPREFIX}"/opt/cuda) \
$(use_enable romio io-romio) \
$(use_enable heterogeneous) \
$(use_enable ipv6) \
$(use_with openmpi_fabrics_ofed verbs "${EPREFIX}"/usr) \
$(use_with openmpi_fabrics_knem knem "${EPREFIX}"/usr) \
$(use_with openmpi_fabrics_psm psm "${EPREFIX}"/usr) \
$(use_enable openmpi_ofed_features_control-hdr-padding openib-control-hdr-padding) \
$(use_enable openmpi_ofed_features_connectx-xrc openib-connectx-xrc) \
$(use_enable openmpi_ofed_features_rdmacm openib-rdmacm) \
$(use_enable openmpi_ofed_features_dynamic-sl openib-dynamic-sl) \
$(use_enable openmpi_ofed_features_failover btl-openib-failover) \
$(use_with openmpi_rm_pbs tm) \
$(use_with openmpi_rm_slurm slurm)
}
src_install() {
default
# From USE=vt see #359917
rm "${ED}"/usr/share/libtool || die
# Avoid collisions with libevent
rm -rf "${ED}"/usr/include/event2 || die
dodoc README AUTHORS NEWS VERSION
}
src_test() {
# Doesn't work with the default src_test as the dry run (-n) fails.
# Do not override malloc during build. Works around #462602
emake -j1 check
}
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