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| author |   Michał Górny <mgorny@gentoo.org> | 2018-01-18 22:23:13 +0100 |
|---|---|---|
| committer | Michał Górny <mgorny@gentoo.org> | 2018-01-18 22:25:17 +0100 |
| commit | a4d33e643f3aa8cb5cf8b0555328e846e4f6f9de (patch) | |
| tree | 63b5f5bbdbdfc31cd05ddfdce23dbffefc77a30c /sys-libs/libomp | |
| parent | sys-devel/clang: Rename patch directory 5.0.0 -> 5.0.1 (diff) | |
| download | gentoo-a4d33e643f3aa8cb5cf8b0555328e846e4f6f9de.tar.gz gentoo-a4d33e643f3aa8cb5cf8b0555328e846e4f6f9de.tar.bz2 gentoo-a4d33e643f3aa8cb5cf8b0555328e846e4f6f9de.zip | |
sys-libs/libomp: List broken PDS scheduler versions
The sched_yield() call has been reintroduced in PDS 0.98i. Improve
the kernel check to explicitly list which PDS versions are affected,
and which -pf kernels are affected (sadly, no fixed version yet).
Big thanks to Holger Hoffstätte for convincing upstream to fix this
and all the research!
Bug: https://bugs.gentoo.org/638410
Diffstat (limited to 'sys-libs/libomp')
| -rw-r--r-- | sys-libs/libomp/libomp-4.0.1.ebuild | 5 | ||||
| -rw-r--r-- | sys-libs/libomp/libomp-5.0.1.ebuild | 5 | ||||
| -rw-r--r-- | sys-libs/libomp/libomp-6.0.9999.ebuild | 5 | ||||
| -rw-r--r-- | sys-libs/libomp/libomp-9999.ebuild | 5 |
4 files changed, 16 insertions, 4 deletions
diff --git a/sys-libs/libomp/libomp-4.0.1.ebuild b/sys-libs/libomp/libomp-4.0.1.ebuild index 299e49921e10..920d364c8a85 100644 --- a/sys-libs/libomp/libomp-4.0.1.ebuild +++ b/sys-libs/libomp/libomp-4.0.1.ebuild @@ -43,7 +43,10 @@ S=${WORKDIR}/openmp-${PV/_/}.src CMAKE_BUILD_TYPE=RelWithDebInfo CONFIG_CHECK="~!SCHED_PDS" -ERROR_SCHED_PDS="PDS scheduler is not supported as it does not implement sched_yield()" +ERROR_SCHED_PDS="PDS scheduler versions >= 0.98c < 0.98i (e.g. used in kernels +>= 4.13-pf11, no fixed release yet) do not implement sched_yield() call which +may result in horrible performance problems with libomp. If you are using one +of the specified kernel versions, you may want to disable the PDS scheduler." python_check_deps() { has_version "dev-python/lit[${PYTHON_USEDEP}]" diff --git a/sys-libs/libomp/libomp-5.0.1.ebuild b/sys-libs/libomp/libomp-5.0.1.ebuild index e53670dab6d4..9075688c9e49 100644 --- a/sys-libs/libomp/libomp-5.0.1.ebuild +++ b/sys-libs/libomp/libomp-5.0.1.ebuild @@ -43,7 +43,10 @@ S=${WORKDIR}/openmp-${PV/_/}.src CMAKE_BUILD_TYPE=RelWithDebInfo CONFIG_CHECK="~!SCHED_PDS" -ERROR_SCHED_PDS="PDS scheduler is not supported as it does not implement sched_yield()" +ERROR_SCHED_PDS="PDS scheduler versions >= 0.98c < 0.98i (e.g. used in kernels +>= 4.13-pf11, no fixed release yet) do not implement sched_yield() call which +may result in horrible performance problems with libomp. If you are using one +of the specified kernel versions, you may want to disable the PDS scheduler." python_check_deps() { has_version "dev-python/lit[${PYTHON_USEDEP}]" diff --git a/sys-libs/libomp/libomp-6.0.9999.ebuild b/sys-libs/libomp/libomp-6.0.9999.ebuild index 461064323a15..5e156aca296c 100644 --- a/sys-libs/libomp/libomp-6.0.9999.ebuild +++ b/sys-libs/libomp/libomp-6.0.9999.ebuild @@ -44,7 +44,10 @@ DEPEND="${RDEPEND} CMAKE_BUILD_TYPE=RelWithDebInfo CONFIG_CHECK="~!SCHED_PDS" -ERROR_SCHED_PDS="PDS scheduler is not supported as it does not implement sched_yield()" +ERROR_SCHED_PDS="PDS scheduler versions >= 0.98c < 0.98i (e.g. used in kernels +>= 4.13-pf11, no fixed release yet) do not implement sched_yield() call which +may result in horrible performance problems with libomp. If you are using one +of the specified kernel versions, you may want to disable the PDS scheduler." python_check_deps() { has_version "dev-python/lit[${PYTHON_USEDEP}]" diff --git a/sys-libs/libomp/libomp-9999.ebuild b/sys-libs/libomp/libomp-9999.ebuild index 630a7bf4f050..ad6d62ae7449 100644 --- a/sys-libs/libomp/libomp-9999.ebuild +++ b/sys-libs/libomp/libomp-9999.ebuild @@ -43,7 +43,10 @@ DEPEND="${RDEPEND} CMAKE_BUILD_TYPE=RelWithDebInfo CONFIG_CHECK="~!SCHED_PDS" -ERROR_SCHED_PDS="PDS scheduler is not supported as it does not implement sched_yield()" +ERROR_SCHED_PDS="PDS scheduler versions >= 0.98c < 0.98i (e.g. used in kernels +>= 4.13-pf11, no fixed release yet) do not implement sched_yield() call which +may result in horrible performance problems with libomp. If you are using one +of the specified kernel versions, you may want to disable the PDS scheduler." python_check_deps() { has_version "dev-python/lit[${PYTHON_USEDEP}]" |