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# Copyright 1999-2024 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
ROCM_VERSION=${PV}
inherit cmake rocm
DESCRIPTION="HIP back-end for the parallel algorithm library Thrust"
HOMEPAGE="https://github.com/ROCmSoftwarePlatform/rocThrust"
SRC_URI="https://github.com/ROCmSoftwarePlatform/rocThrust/archive/rocm-${PV}.tar.gz -> rocThrust-${PV}.tar.gz"
LICENSE="Apache-2.0"
KEYWORDS="~amd64"
SLOT="0/$(ver_cut 1-2)"
IUSE="benchmark test"
REQUIRED_USE="${ROCM_REQUIRED_USE}"
RESTRICT="!test? ( test )"
RDEPEND="dev-util/hip
sci-libs/rocPRIM:${SLOT}[${ROCM_USEDEP}]
test? ( dev-cpp/gtest )"
DEPEND="${RDEPEND}"
BDEPEND=">=dev-build/cmake-3.22"
S="${WORKDIR}/rocThrust-rocm-${PV}"
PATCHES=( "${FILESDIR}/${PN}-4.0-operator_new.patch" )
src_prepare() {
sed -e "/PREFIX rocthrust/d" \
-e "/DESTINATION/s:rocthrust/include/thrust:include/thrust:" \
-e "/rocm_install_symlink_subdir(rocthrust)/d" \
-e "/<INSTALL_INTERFACE/s:rocthrust/include/:include/:" -i thrust/CMakeLists.txt || die
sed -e "s:\${CMAKE_INSTALL_INCLUDEDIR}:&/thrust:" \
-e "s:\${ROCM_INSTALL_LIBDIR}:\${CMAKE_INSTALL_LIBDIR}:" -i cmake/ROCMExportTargetsHeaderOnly.cmake || die
# disable downloading googletest and googlebenchmark
sed -r -e '/Downloading/{:a;N;/\n *\)$/!ba; d}' -i cmake/Dependencies.cmake || die
# remove GIT dependency
sed -r -e '/find_package\(Git/{:a;N;/\nendif/!ba; d}' -i cmake/Dependencies.cmake || die
eapply_user
cmake_src_prepare
}
src_configure() {
addpredict /dev/kfd
addpredict /dev/dri/
local mycmakeargs=(
-DCMAKE_SKIP_RPATH=ON
-DAMDGPU_TARGETS="$(get_amdgpu_flags)"
-DBUILD_TEST=$(usex test ON OFF)
-DBUILD_BENCHMARKS=$(usex benchmark ON OFF)
-DBUILD_FILE_REORG_BACKWARD_COMPATIBILITY=OFF
)
CXX=hipcc cmake_src_configure
}
src_test() {
check_amdgpu
# uses HMM to fit tests to default <512M iGPU VRAM
MAKEOPTS="-j1" ROCTHRUST_USE_HMM="1" cmake_src_test
}
src_install() {
cmake_src_install
use benchmark && dobin "${BUILD_DIR}"/benchmarks/benchmark_thrust_bench
}
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