commit: 635af6abf583f1e17860c0eb72cfe74b474bdfdf Author: Michał Górny <mgorny <AT> gentoo <DOT> org> AuthorDate: Sat Dec 30 22:30:29 2017 +0000 Commit: Michał Górny <mgorny <AT> gentoo <DOT> org> CommitDate: Sat Dec 30 22:43:39 2017 +0000 URL: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=635af6ab
sys-libs/libomp: Disallow kernels with PDU scheduler The PDU scheduler (used e.g. in current versions of -pf kernel) does not implement the sched_yield() call which is used by the OpenMP implementation to switch between threads. As a result, using OpenMP with this scheduler results in horrible performance with 100% CPU usage on looped noop syscall calls. Closes: https://bugs.gentoo.org/638410 sys-libs/libomp/libomp-4.0.1.ebuild | 13 ++++++++++--- sys-libs/libomp/libomp-5.0.0.ebuild | 13 ++++++++++--- sys-libs/libomp/libomp-5.0.1.ebuild | 13 ++++++++++--- sys-libs/libomp/libomp-9999.ebuild | 13 ++++++++++--- 4 files changed, 40 insertions(+), 12 deletions(-) diff --git a/sys-libs/libomp/libomp-4.0.1.ebuild b/sys-libs/libomp/libomp-4.0.1.ebuild index 2eed580030c..299e49921e1 100644 --- a/sys-libs/libomp/libomp-4.0.1.ebuild +++ b/sys-libs/libomp/libomp-4.0.1.ebuild @@ -8,7 +8,7 @@ EAPI=6 CMAKE_MIN_VERSION=3.7.0-r1 PYTHON_COMPAT=( python2_7 ) -inherit cmake-multilib python-any-r1 +inherit cmake-multilib linux-info python-any-r1 DESCRIPTION="OpenMP runtime library for LLVM/clang compiler" HOMEPAGE="https://openmp.llvm.org"; @@ -22,8 +22,7 @@ LICENSE="|| ( UoI-NCSA MIT ) MIT LLVM-Grant" SLOT="0" KEYWORDS="amd64 ~arm64 x86" IUSE="hwloc ompt test" -# Restrict tests to avoid hanging, https://bugs.gentoo.org/638410 -RESTRICT="test" +RESTRICT="!test? ( test )" RDEPEND="hwloc? ( sys-apps/hwloc:0=[${MULTILIB_USEDEP}] )" # tests: @@ -43,11 +42,19 @@ S=${WORKDIR}/openmp-${PV/_/}.src # least intrusive of all CMAKE_BUILD_TYPE=RelWithDebInfo +CONFIG_CHECK="~!SCHED_PDS" +ERROR_SCHED_PDS="PDS scheduler is not supported as it does not implement sched_yield()" + python_check_deps() { has_version "dev-python/lit[${PYTHON_USEDEP}]" } +pkg_pretend() { + linux-info_pkg_setup +} + pkg_setup() { + linux-info_pkg_setup use test && python-any-r1_pkg_setup } diff --git a/sys-libs/libomp/libomp-5.0.0.ebuild b/sys-libs/libomp/libomp-5.0.0.ebuild index f90baa29e66..87c3bfe493f 100644 --- a/sys-libs/libomp/libomp-5.0.0.ebuild +++ b/sys-libs/libomp/libomp-5.0.0.ebuild @@ -8,7 +8,7 @@ EAPI=6 CMAKE_MIN_VERSION=3.7.0-r1 PYTHON_COMPAT=( python2_7 ) -inherit cmake-multilib python-any-r1 +inherit cmake-multilib linux-info python-any-r1 DESCRIPTION="OpenMP runtime library for LLVM/clang compiler" HOMEPAGE="https://openmp.llvm.org"; @@ -22,8 +22,7 @@ LICENSE="|| ( UoI-NCSA MIT ) MIT LLVM-Grant" SLOT="0" KEYWORDS="~amd64 ~arm64 ~x86" IUSE="hwloc ompt test" -# Restrict tests to avoid hanging, https://bugs.gentoo.org/638410 -RESTRICT="test" +RESTRICT="!test? ( test )" RDEPEND="hwloc? ( sys-apps/hwloc:0=[${MULTILIB_USEDEP}] )" # tests: @@ -43,11 +42,19 @@ S=${WORKDIR}/openmp-${PV/_/}.src # least intrusive of all CMAKE_BUILD_TYPE=RelWithDebInfo +CONFIG_CHECK="~!SCHED_PDS" +ERROR_SCHED_PDS="PDS scheduler is not supported as it does not implement sched_yield()" + python_check_deps() { has_version "dev-python/lit[${PYTHON_USEDEP}]" } +pkg_pretend() { + linux-info_pkg_setup +} + pkg_setup() { + linux-info_pkg_setup use test && python-any-r1_pkg_setup } diff --git a/sys-libs/libomp/libomp-5.0.1.ebuild b/sys-libs/libomp/libomp-5.0.1.ebuild index f90baa29e66..87c3bfe493f 100644 --- a/sys-libs/libomp/libomp-5.0.1.ebuild +++ b/sys-libs/libomp/libomp-5.0.1.ebuild @@ -8,7 +8,7 @@ EAPI=6 CMAKE_MIN_VERSION=3.7.0-r1 PYTHON_COMPAT=( python2_7 ) -inherit cmake-multilib python-any-r1 +inherit cmake-multilib linux-info python-any-r1 DESCRIPTION="OpenMP runtime library for LLVM/clang compiler" HOMEPAGE="https://openmp.llvm.org"; @@ -22,8 +22,7 @@ LICENSE="|| ( UoI-NCSA MIT ) MIT LLVM-Grant" SLOT="0" KEYWORDS="~amd64 ~arm64 ~x86" IUSE="hwloc ompt test" -# Restrict tests to avoid hanging, https://bugs.gentoo.org/638410 -RESTRICT="test" +RESTRICT="!test? ( test )" RDEPEND="hwloc? ( sys-apps/hwloc:0=[${MULTILIB_USEDEP}] )" # tests: @@ -43,11 +42,19 @@ S=${WORKDIR}/openmp-${PV/_/}.src # least intrusive of all CMAKE_BUILD_TYPE=RelWithDebInfo +CONFIG_CHECK="~!SCHED_PDS" +ERROR_SCHED_PDS="PDS scheduler is not supported as it does not implement sched_yield()" + python_check_deps() { has_version "dev-python/lit[${PYTHON_USEDEP}]" } +pkg_pretend() { + linux-info_pkg_setup +} + pkg_setup() { + linux-info_pkg_setup use test && python-any-r1_pkg_setup } diff --git a/sys-libs/libomp/libomp-9999.ebuild b/sys-libs/libomp/libomp-9999.ebuild index 6b0c0b5b801..4d590521516 100644 --- a/sys-libs/libomp/libomp-9999.ebuild +++ b/sys-libs/libomp/libomp-9999.ebuild @@ -8,7 +8,7 @@ EAPI=6 CMAKE_MIN_VERSION=3.7.0-r1 PYTHON_COMPAT=( python2_7 ) -inherit cmake-multilib git-r3 python-any-r1 +inherit cmake-multilib git-r3 linux-info python-any-r1 DESCRIPTION="OpenMP runtime library for LLVM/clang compiler" HOMEPAGE="https://openmp.llvm.org"; @@ -24,8 +24,7 @@ LICENSE="|| ( UoI-NCSA MIT ) MIT LLVM-Grant" SLOT="0" KEYWORDS="" IUSE="hwloc ompt test" -# Restrict tests to avoid hanging, https://bugs.gentoo.org/638410 -RESTRICT="test !test? ( test )" +RESTRICT="!test? ( test )" RDEPEND="hwloc? ( sys-apps/hwloc:0=[${MULTILIB_USEDEP}] )" # tests: @@ -43,11 +42,19 @@ DEPEND="${RDEPEND} # least intrusive of all CMAKE_BUILD_TYPE=RelWithDebInfo +CONFIG_CHECK="~!SCHED_PDS" +ERROR_SCHED_PDS="PDS scheduler is not supported as it does not implement sched_yield()" + python_check_deps() { has_version "dev-python/lit[${PYTHON_USEDEP}]" } +pkg_pretend() { + linux-info_pkg_setup +} + pkg_setup() { + linux-info_pkg_setup use test && python-any-r1_pkg_setup }
