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5809be05a2
gcc/libgomp
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Jakub Jelinek 5809be05a2 openmp: Add support for OMP_PLACES=ll_caches 
This patch implements support for ll_caches abstract name in OMP_PLACES,
which stands for places where logical cpus in each place share the last
level cache.

This seems to work fine for me on x86 and kernel sources show that it is
in common code, but on some machines on CompileFarm the files I'm using,
i.e.
/sys/devices/system/cpu/cpuN/cache/indexN/level
/sys/devices/system/cpu/cpuN/cache/indexN/shared_cpu_list
don't exist, is that because they have too old kernel and newer kernels
are fine or should I implement some fallback methods (which)?
E.g. on gcc112.fsffrance.org I see just shared_cpu_map and not shared_cpu_list
(with shared_cpu_map being harder to parse) and on another box I didn't even
see the cache subdirectories.

Way to test this is
OMP_PLACES=ll_caches OMP_DISPLAY_ENV=true LD_PRELOAD=.libs/libgomp.so.1 /bin/true
and see what it prints on OMP_PLACES line.

2021-10-15  Jakub Jelinek  <jakub@redhat.com>

	* env.c (parse_places_var): Handle ll_caches as level 4.
	* config/linux/affinity.c (gomp_affinity_find_last_cache_level): New
	function.
	(gomp_affinity_init_level_1): Handle level 4 as logical cpus sharing
	last level cache.
	(gomp_affinity_init_level): Likewise.
	* testsuite/libgomp.c/places-1.c: New test.
	* testsuite/libgomp.c/places-2.c: New test.
	* testsuite/libgomp.c/places-3.c: New test.
	* testsuite/libgomp.c/places-4.c: New test.
2021-10-15 12:06:51 +02:00
..
config openmp: Add support for OMP_PLACES=ll_caches 2021-10-15 12:06:51 +02:00
plugin amdgcn: Enable OpenACC worker partitioning for AMD GCN 2021-08-09 15:08:44 +02:00
testsuite openmp: Add support for OMP_PLACES=ll_caches 2021-10-15 12:06:51 +02:00
.gitattributes libgomp: Fixes + cleanup for OpenACC's Fortran module + openacc_lib.h 2020-02-19 09:13:44 +01:00
acc_prof.h Update copyright years. 2021-01-04 10:26:59 +01:00
acinclude.m4 re PR other/79543 (Inappropriate "ld --version" checking) 2019-09-03 14:10:26 +00:00
aclocal.m4 libgomp: Regenerate configure files with automake 1.15.1 2020-10-02 12:08:47 +02:00
affinity-fmt.c openmp: Avoid PLT relocations for omp_* symbols in libgomp 2021-10-01 10:42:07 +02:00
affinity.c Update copyright years. 2021-01-04 10:26:59 +01:00
alloc.c Update copyright years. 2021-01-04 10:26:59 +01:00
allocator.c libgomp: Add tests for omp_atv_serialized and deprecate omp_atv_sequential. 2021-10-11 04:34:51 -07:00
atomic.c Update copyright years. 2021-01-04 10:26:59 +01:00
barrier.c Update copyright years. 2021-01-04 10:26:59 +01:00
ChangeLog Daily bump. 2021-10-15 00:17:02 +00:00
ChangeLog.graphite
config.h.in offload-defaulted: Config option to silently ignore uninstalled offload compilers 2021-04-28 18:46:47 +02:00
configure libgomp: Only check for 2*sizeof(void*) int type with Fortran [PR96661] 2021-09-28 15:15:47 +02:00
configure.ac libgomp: Only check for 2*sizeof(void*) int type with Fortran [PR96661] 2021-09-28 15:15:47 +02:00
configure.tgt [gcn] Work-around libgomp 'error: array subscript 0 is outside array bounds of ‘__lds struct gomp_thread * __lds[0]’ [-Werror=array-bounds]' some more [PR101484] 2021-07-20 09:14:28 +02:00
critical.c Update copyright years. 2021-01-04 10:26:59 +01:00
env.c openmp: Add support for OMP_PLACES=ll_caches 2021-10-15 12:06:51 +02:00
error.c openmp: Implement the error directive 2021-08-20 11:36:52 +02:00
fortran.c openmp: Add omp_set_num_teams, omp_get_max_teams, omp_[gs]et_teams_thread_limit 2021-10-11 12:20:22 +02:00
hashtab.h libgomp: Structure element mapping for OpenMP 5.0 2021-06-17 21:34:59 +08:00
icv-device.c openmp: Avoid PLT relocations for omp_* symbols in libgomp 2021-10-01 10:42:07 +02:00
icv.c openmp: Add omp_set_num_teams, omp_get_max_teams, omp_[gs]et_teams_thread_limit 2021-10-11 12:20:22 +02:00
iter_ull.c Update copyright years. 2021-01-04 10:26:59 +01:00
iter.c Update copyright years. 2021-01-04 10:26:59 +01:00
libgomp_f.h.in Update copyright years. 2021-01-04 10:26:59 +01:00
libgomp_g.h openmp: Implement the error directive 2021-08-20 11:36:52 +02:00
libgomp-plugin.c Update copyright years. 2021-01-04 10:26:59 +01:00
libgomp-plugin.h openmp: Implement omp_get_device_num routine 2021-08-05 23:29:03 +08:00
libgomp.h openmp: Add omp_set_num_teams, omp_get_max_teams, omp_[gs]et_teams_thread_limit 2021-10-11 12:20:22 +02:00
libgomp.map openmp: Add omp_set_num_teams, omp_get_max_teams, omp_[gs]et_teams_thread_limit 2021-10-11 12:20:22 +02:00
libgomp.spec.in
libgomp.texi openmp: Mark declare variant directive in documentation as supported in Fortran 2021-10-14 09:35:33 -07:00
lock.c Update copyright years. 2021-01-04 10:26:59 +01:00
loop_ull.c Update copyright years. 2021-01-04 10:26:59 +01:00
loop.c Update copyright years. 2021-01-04 10:26:59 +01:00
Makefile.am openmp: Implement OpenMP 5.1 scope construct 2021-08-17 09:30:09 +02:00
Makefile.in openmp: Implement OpenMP 5.1 scope construct 2021-08-17 09:30:09 +02:00
oacc-async.c Update copyright years. 2021-01-04 10:26:59 +01:00
oacc-cuda.c Update copyright years. 2021-01-04 10:26:59 +01:00
oacc-host.c Update copyright years. 2021-01-04 10:26:59 +01:00
oacc-init.c Update copyright years. 2021-01-04 10:26:59 +01:00
oacc-int.h Update copyright years. 2021-01-04 10:26:59 +01:00
oacc-mem.c Fix OpenACC "ephemeral" asynchronous host-to-device copies 2021-07-27 11:16:27 +02:00
oacc-parallel.c libgomp: Structure element mapping for OpenMP 5.0 2021-06-17 21:34:59 +08:00
oacc-plugin.c Update copyright years. 2021-01-04 10:26:59 +01:00
oacc-plugin.h Update copyright years. 2021-01-04 10:26:59 +01:00
oacc-profiling.c Update copyright years. 2021-01-04 10:26:59 +01:00
oacc-target.c GCN libgomp port 2019-11-13 12:38:04 +00:00
omp_lib.f90.in libgomp: Add tests for omp_atv_serialized and deprecate omp_atv_sequential. 2021-10-11 04:34:51 -07:00
omp_lib.h.in openmp: Add omp_set_num_teams, omp_get_max_teams, omp_[gs]et_teams_thread_limit 2021-10-11 12:20:22 +02:00
omp.h.in libgomp: Add tests for omp_atv_serialized and deprecate omp_atv_sequential. 2021-10-11 04:34:51 -07:00
openacc_lib.h Update copyright years. 2021-01-04 10:26:59 +01:00
openacc.f90 Update copyright years. 2021-01-04 10:26:59 +01:00
openacc.h Update copyright years. 2021-01-04 10:26:59 +01:00
ordered.c Update copyright years. 2021-01-04 10:26:59 +01:00
parallel.c Update copyright years. 2021-01-04 10:26:59 +01:00
priority_queue.c openmp: Add support for the OpenMP 5.0 task detach clause 2021-01-16 12:58:13 -08:00
priority_queue.h openmp: Add support for the OpenMP 5.0 task detach clause 2021-01-16 12:58:13 -08:00
scope.c openmp: Implement OpenMP 5.1 scope construct 2021-08-17 09:30:09 +02:00
sections.c Update copyright years. 2021-01-04 10:26:59 +01:00
secure_getenv.h Update copyright years. 2021-01-04 10:26:59 +01:00
single.c Update copyright years. 2021-01-04 10:26:59 +01:00
splay-tree.c Update copyright years. 2021-01-04 10:26:59 +01:00
splay-tree.h Update copyright years. 2021-01-04 10:26:59 +01:00
target.c libgomp: Release device lock on cbuf error path 2021-10-12 06:50:26 -07:00
task.c openmp: Notify team barrier of pending tasks in omp_fulfill_event 2021-05-17 13:15:08 -07:00
taskloop.c openmp: Add support for strict modifier on grainsize/num_tasks clauses 2021-08-23 10:16:24 +02:00
team.c Replace VRP threader with a hybrid forward threader. 2021-09-27 17:39:51 +02:00
teams.c openmp: Add omp_set_num_teams, omp_get_max_teams, omp_[gs]et_teams_thread_limit 2021-10-11 12:20:22 +02:00
work.c Update copyright years. 2021-01-04 10:26:59 +01:00