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* Fix for bug https://llvm.org/bugs/show_bug.cgi?id=30889Andrey Churbanov2017-03-281-1/+1
| | | | | | | | Condition adjusted for Debug assertion. Differential Revision: https://reviews.llvm.org/D29638 llvm-svn: 298915
* GOMP compatibility: add missing OpenMP4.0 task deps handling codePaul Osmialowski2017-03-231-1/+22
| | | | | | Differential Revision: https://reviews.llvm.org/D31071 llvm-svn: 298605
* Fixed intermittent hang on tests with "target teams if(0)" construct with no ↵Andrey Churbanov2017-03-211-6/+10
| | | | | | | | parallel inside. Differential Revision: https://reviews.llvm.org/D29597 llvm-svn: 298373
* Stride in distribute parallel for loops with no chunk size.Andrey Churbanov2017-03-211-0/+1
| | | | | | | | Patch by George Rokos. Differential Revision: https://reviews.llvm.org/D24486 llvm-svn: 298362
* Minor improvement of KMP_YIELD_NOW() macro.Jonathan Peyton2017-03-202-7/+11
| | | | | | | | | | | This change slightly improves performance of KMP_YIELD_NOW() macro, by using _rdtsc() intrinsic function if possible. Patch by Hansang Bae Differential Revision: https://reviews.llvm.org/D31008 llvm-svn: 298314
* Fix incorrect initial value of __kmp_affinity_type.Jonathan Peyton2017-03-201-0/+1
| | | | | | | | | | | | | Affinity initialization code expects __kmp_affinity_type has the value affinity_default by default, but the cleanup code does not properly set the value back to affinity_default. This may introduce some issues when multiple roots are trying to initialize/uninitialize the runtime successively. Patch by Hansang Bae Differential Revision: https://reviews.llvm.org/D31012 llvm-svn: 298313
* Fix assertion failure when 'proclist' is used without 'explicit' in KMP_AFFINITYJonathan Peyton2017-03-101-2/+5
| | | | | | | | | | | | This change fixes an assertion failure the in case KMP_AFFINITY is set with 'proclist' specified but without 'explicit' e.g., KMP_AFFINITY=verbose,proclist=[0-31] Patch by Olga Malysheva Differential Revision: https://reviews.llvm.org/D30404 llvm-svn: 297480
* Fix GNU strerror_r check for Android.Dan Albert2017-03-071-1/+3
| | | | | | | | | | | | | | | | | Summary: Bionic didn't get a GNU style strerror_r until Android M. Until then we unconditionally exposed the POSIX one. Expand the check to account for this. Reviewers: pirama, AndreyChurbanov, jlpeyton Reviewed By: jlpeyton Subscribers: openmp-commits, srhines Differential Revision: https://reviews.llvm.org/D30056 llvm-svn: 297235
* OpenMP version 5.0 addedJonathan Peyton2017-03-067-2/+2742
| | | | | | | | | | | | Add build option LIBOMP_OMP_VERSION=50, 5.0 headers, and add the year/month associated with OpenMP 5.0 in relevant source locations. Also, remove the deprecated LIBOMP_OMP_VERSION=41 option. Patch by Olga Malysheva Differential Revision: https://reviews.llvm.org/D30450 llvm-svn: 297083
* Mixed type atomic routines added to Windows DLLJonathan Peyton2017-03-062-0/+8
| | | | | | | | Patch by Olga Malysheva Differential Revision: https://reviews.llvm.org/D30408 llvm-svn: 297082
* Removing couple unnecessary architecture guards.Jonathan Peyton2017-02-281-2/+2
| | | | | | | | | This section of code (__kmp_test_then_* functions) is guarded by (KMP_ARCH_X86 || KMP_ARCH_X86_64) so it does not make sense to have other architecture guards inside this section. Non-x86 architectures always use intrinsics (__sync_*) llvm-svn: 296525
* [OpenMP] Missing virtual destructor in KMPAffinityGeorge Rokos2017-02-221-0/+2
| | | | | | | | Added virtual destructor in a class containing virtual functions. Differential Revision: https://reviews.llvm.org/D30271 llvm-svn: 295896
* [stats] add stats-gathering for static_steal scheduling methodJonathan Peyton2017-02-172-0/+8
| | | | | | | | Add counter to count number of static_steal for loops Add counter for number of chunks executed per static_steal for loop Add counter for number of chunks stolen per static_steal for loop llvm-svn: 295461
* Run-time library part of OpenMP 5.0 task reduction implementation.Andrey Churbanov2017-02-163-1/+228
| | | | | | | | | Added test kmp_task_reduction_nest.cpp which has an example of possible compiler codegen. Differential Revision: https://reviews.llvm.org/D29600 llvm-svn: 295343
* Added an option to bind initial thread at the start of applicationAndrey Churbanov2017-02-161-3/+8
| | | | | | | | via setting envirable KMP_INITIAL_THREAD_BIND=1. Differential Revision: https://reviews.llvm.org/D29665 llvm-svn: 295339
* Enable yield cycle on LinuxJonathan Peyton2017-02-154-11/+14
| | | | | | | | | | | | This change allows the runtime to turn __kmp_yield() on/off repeatedly on Linux. This feature was removed when disabling monitor thread, but there are applications that perform better with this feature on. Patch by Hansang Bae Differential Revision: https://reviews.llvm.org/D29227 llvm-svn: 295203
* [OpenMP] New Tsan annotations to remove false positive on reduction and barriersJonas Hahnfeld2017-02-152-21/+31
| | | | | | | | | | | Added new ThreadSanitizer annotations to remove false positives with OpenMP reduction. Cleaned up Tsan annotations header file from unused annotations. Patch by Simone Atzeni! Differential Revision: https://reviews.llvm.org/D29202 llvm-svn: 295158
* Fix a race in shutdown when tasking is used.Andrey Churbanov2017-02-064-1/+41
| | | | | | | | Patch by Terry Wilmarth. Differential Revision: https://reviews.llvm.org/D28377 llvm-svn: 294214
* Cleanup: put i_maxmin members and ___kmp_size_type into traits_tJonathan Peyton2017-01-273-79/+27
| | | | | | | | | Put the duplicated i_maxmin into traits_t by adding new members max_value and min_value. Put ___kmp_size_type into traits_t by adding member type_size. Differential Revision: https://reviews.llvm.org/D28847 llvm-svn: 293316
* Printing OS thread id, when KMP_AFFINITY is set.Jonathan Peyton2017-01-273-7/+17
| | | | | | | | Patch by Vishakha Agrawal Differential Revision: https://reviews.llvm.org/D28873 llvm-svn: 293315
* Fix performance issue incurred by removing monitor thread.Jonathan Peyton2017-01-273-21/+27
| | | | | | | | | | | | | | | | When the monitor thread is used, most threads in the team directly go to sleep if the copy of bt_intervals/bt_set is not available in the cache, and this happens at least once per thread in the wait function, making the overall performance slightly better. This change tries to mimic this behavior by using the bt_intervals cache, which simply keeps the blocktime interval in terms of the platform-dependent ticks or nanoseconds. Patch by Hansang Bae Differential Revision: https://reviews.llvm.org/D28906 llvm-svn: 293312
* Use C++11 static_assert() for build asserts.Jonathan Peyton2017-01-181-21/+2
| | | | llvm-svn: 292350
* Fix memory error in case of reinit using kmp_set_defaults() for lock code.Jonathan Peyton2017-01-181-0/+6
| | | | | | | | The lock tables were being reallocated if kmp_set_defaults() was called. In the env_init code it says that the user should be able to switch between different KMP_CONSISTENCY_CHECK values which is what this change enables. llvm-svn: 292349
* Fix small memory leak regarding __kmp_nested_proc_bindJonathan Peyton2017-01-181-0/+4
| | | | | | | There is no corresponding free() for this expandable array. The logic is added in __kmp_cleanup() next to the freeing of __kmp_nested_nth. llvm-svn: 292348
* kmp_affinity: Fix check if specific bit is setJonas Hahnfeld2017-01-121-1/+1
| | | | | | | | | | | | | | | | Clang 4.0 trunk warns: warning: logical not is only applied to the left hand side of this bitwise operator [-Wlogical-not-parentheses] This points to a potential bug if the code really wants to check if the single bit is not set: If for example (buf.edx >> 9) = 2 (has any bit set except the least significant one), 'logical not' will return 0 which stays 0 after the 'bitwise and'. To do this correctly we first need to evaluate the 'bitwise and'. In that case it returns 2 & 1 = 0 which after the 'logical not' evaluates to 1. Differential Revision: https://reviews.llvm.org/D28599 llvm-svn: 291764
* Fix for the __kmpc_global_num_threads function to return the value of the ↵Andrey Churbanov2016-12-211-2/+2
| | | | | | | | | | __kmp_all_nth global var. Patch by Yonghong Yan. Differential Revision: https://reviews.llvm.org/D27975 llvm-svn: 290272
* Follow up to r289732: Update comments in source files to reference .cpp filesJonathan Peyton2016-12-1433-47/+48
| | | | | | Patch by Hansang Bae llvm-svn: 289739
* Change source files from .c to .cppJonathan Peyton2016-12-1432-45/+41
| | | | | | | | Patch by Hansang Bae Differential Revision: https://reviews.llvm.org/D26688 llvm-svn: 289732
* Cleanup: debug print fixed and moved inside critical section.Andrey Churbanov2016-12-141-5/+5
| | | | | | | | Patch by Victor Campos. Differential Revision: https://reviews.llvm.org/D27647 llvm-svn: 289640
* Support of mips & mips64 for openmprtlSylvestre Ledru2016-12-089-15/+58
| | | | | | | | | | | | | | Summary: Implemented by Dejan Latinovic See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=790735 for more more information Reviewers: AndreyChurbanov, jlpeyton Subscribers: openmp-commits, mgorny Differential Revision: https://reviews.llvm.org/D26576 llvm-svn: 289032
* fixed type in Windows-specific codeAndrey Churbanov2016-12-011-1/+1
| | | | llvm-svn: 288368
* Fixed typo in kmp_process_deps trace outputJonathan Peyton2016-11-281-1/+1
| | | | | | | | Patch by Victor Campos Differential Revision: https://reviews.llvm.org/D27172 llvm-svn: 288056
* Cleanup: memory leaks on warnings printing fixed; some memory freeing ↵Andrey Churbanov2016-11-287-92/+149
| | | | | | | | | | cleaned; poor indents and one typo fixed. Patch by Victor Campos. Differential Revision: https://reviews.llvm.org/D26786 llvm-svn: 288054
* Set task->td_dephash to NULL after freeJonathan Peyton2016-11-211-0/+1
| | | | llvm-svn: 287552
* Fix for D25504 - segfault because of double free()-ing in shutdown code.Jonathan Peyton2016-11-211-1/+2
| | | | | | | | | | Paul Osmialowski pointed out a double free bug in shutdown code. This patch Moves the freeing of the implicit task to above the freeing of all fast memory to prevent the double-free issue. Differential Revision: https://reviews.llvm.org/D26860 llvm-svn: 287551
* Update stats-gathering codeJonathan Peyton2016-11-146-117/+102
| | | | | | | | | | | | | Have developer timers use partitioning scheme which also required that some redundant developer timers be removed in favor of the already existing normal timers. Move per thread stats initialization to just after global thread id assignment which is as early as possible. Also put all global stats initialization code in __kmp_stats_init() and all global stats destruction code in __kmp_stats_fini(). Differential Revision: https://reviews.llvm.org/D26361 llvm-svn: 286892
* Introduce dynamic affinity dispatch capabilitiesJonathan Peyton2016-11-1411-721/+631
| | | | | | | | | | | | | | | | | | | | | | | | | This set of changes enables the affinity interface (Either the preexisting native operating system or HWLOC) to be dynamically set at runtime initialization. The point of this change is that we were seeing performance degradations when using HWLOC. This allows the user to use the old affinity mechanisms which on large machines (>64 cores) makes a large difference in initialization time. These changes mostly move affinity code under a small class hierarchy: KMPAffinity class Mask {} KMPNativeAffinity : public KMPAffinity class Mask : public KMPAffinity::Mask KMPHwlocAffinity class Mask : public KMPAffinity::Mask Since all interface functions (for both affinity and the mask implementation) are virtual, the implementation can be chosen at runtime initialization. Differential Revision: https://reviews.llvm.org/D26356 llvm-svn: 286890
* Added check for malloc return.Andrey Churbanov2016-11-101-0/+6
| | | | | | | | Patch by Victor Campos. Differential Revision: https://reviews.llvm.org/D26318 llvm-svn: 286441
* [OpenMP] Enable ThreadSanitizer to check OpenMP programsJonas Hahnfeld2016-11-0710-9/+332
| | | | | | | | | | | | | | | | | | | | | | This patch allows ThreadSanitizer (Tsan) to verify OpenMP programs. It means that no false positive will be reported by Tsan when verifying an OpenMP programs. This patch introduces annotations within the OpenMP runtime module to provide information about thread synchronization to the Tsan runtime. In order to enable the Tsan support when building the runtime, you must enable the TSAN_SUPPORT option with the following environment variable: -DLIBOMP_TSAN_SUPPORT=TRUE The annotations will be enabled in the main shared library (same mechanism of OMPT). Patch by Simone Atzeni and Joachim Protze! Differential Revision: https://reviews.llvm.org/D13072 llvm-svn: 286115
* fixed typo in commentAndrey Churbanov2016-11-031-1/+1
| | | | llvm-svn: 285947
* Change task stealing to always get task from head of victim's deque.Andrey Churbanov2016-11-021-13/+8
| | | | | | Differential Revision: https://reviews.llvm.org/D26187 llvm-svn: 285833
* Fixed problem introduced by part of https://reviews.llvm.org/D21196.Andrey Churbanov2016-11-011-2/+2
| | | | | | | | | | | | Check Task Scheduling Constraint (TSC) on stealing of untied task. This is needed because the untied task can produce tied children those can break TSC if untied is not a descendant of current task. This can cause live lock on complex tyasking tests (e.g. kastors/strassen-task-dep). Differential Revision: https://reviews.llvm.org/D26182 llvm-svn: 285703
* Add more conditions to check whether task waiting is necessary in ↵Andrey Churbanov2016-11-011-4/+4
| | | | | | | | | | kmp_omp_taskwait. Differential Revision: https://reviews.llvm.org/D26058 Patch by Victor Campos llvm-svn: 285678
* Fixed a memory leak related to task dependencies.Andrey Churbanov2016-10-274-13/+65
| | | | | | | | Differential Revision: http://reviews.llvm.org/D25504 Patch by Alex Duran. llvm-svn: 285283
* Fixing typos in __kmp_release_deps trace outputsJonathan Peyton2016-10-261-4/+4
| | | | | | | | Patch by Victor Campos Differential Revision: https://reviews.llvm.org/D25972 llvm-svn: 285244
* Use getpagesize() instead of PAGE_SIZE macro when KMP_OS_LINUX is trueJonathan Peyton2016-10-263-14/+20
| | | | | | | | Patch by Victor Campos Differential Revision: https://reviews.llvm.org/D26001 llvm-svn: 285243
* Fixed memory leak mistakenly introduced by https://reviews.llvm.org/D23115Andrey Churbanov2016-10-201-3/+5
| | | | | | Differential Revision: http://reviews.llvm.org/D25510 llvm-svn: 284747
* [OpenMP] Fix issue with directives used in a macro.Samuel Antao2016-10-201-8/+9
| | | | | | | | | | | | | | | | | | | Summary: If directives are used in a macro, clang complains with: ``` src/projects/openmp/runtime/src/kmp_runtime.c:7486:2: error: embedding a directive within macro arguments has undefined behavior [-Werror,-Wembedded-directive] #if KMP_USE_MONITOR ``` This patch fixes two occurrences of the issue in `kmp_runtime.cpp`. Reviewers: tlwilmar, jlpeyton, AndreyChurbanov, Hahnfeld Subscribers: Hahnfeld, openmp-commits Differential Revision: https://reviews.llvm.org/D25823 llvm-svn: 284728
* Fix OpenMP 4.0 library buildJonathan Peyton2016-10-182-0/+9
| | | | | | | | Patch by Andrey Churbanov Differential Revision: https://reviews.llvm.org/D25505 llvm-svn: 284499
* Fix a compile error on musl-libc due to strerror_r() prototypeMichal Gorny2016-10-181-1/+1
| | | | | | | | | | | | Function strerror_r() has different signatures in different implementations of libc: glibc's version returns a char*, while BSDs and musl return a int. libomp unconditionally assumes glibc on Linux and thus fails to compile against musl-libc. This patch addresses this issue. Differential Revision: https://reviews.llvm.org/D25071 llvm-svn: 284492
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