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* This patch enables the use of KMP_AFFINITY=balanced on non-MIC ↵Andrey Churbanov2015-01-135-39/+19
| | | | | | Architectures. The restriction for using balanced affinity on non-MIC architectures is it only works for one-package machines. llvm-svn: 225794
* small fixes to the hierarchical barrierAndrey Churbanov2015-01-131-1/+4
| | | | llvm-svn: 225793
* aarch64 port sent by C. BergstromAndrey Churbanov2015-01-1318-88/+139
| | | | llvm-svn: 225792
* Return the architecture by probing predefined compiler macrosAndrey Churbanov2015-01-132-13/+77
| | | | llvm-svn: 225789
* I apologise in advance for the size of this check-in. At Intel we doJim Cownie2014-10-07116-11218/+17816
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | understand that this is not friendly, and are working to change our internal code-development to make it easier to make development features available more frequently and in finer (more functional) chunks. Unfortunately we haven't got that in place yet, and unpicking this into multiple separate check-ins would be non-trivial, so please bear with me on this one. We should be better in the future. Apologies over, what do we have here? GGC 4.9 compatibility -------------------- * We have implemented the new entrypoints used by code compiled by GCC 4.9 to implement the same functionality in gcc 4.8. Therefore code compiled with gcc 4.9 that used to work will continue to do so. However, there are some other new entrypoints (associated with task cancellation) which are not implemented. Therefore user code compiled by gcc 4.9 that uses these new features will not link against the LLVM runtime. (It remains unclear how to handle those entrypoints, since the GCC interface has potentially unpleasant performance implications for join barriers even when cancellation is not used) --- new parallel entry points --- new entry points that aren't OpenMP 4.0 related These are implemented fully :- GOMP_parallel_loop_dynamic() GOMP_parallel_loop_guided() GOMP_parallel_loop_runtime() GOMP_parallel_loop_static() GOMP_parallel_sections() GOMP_parallel() --- cancellation entry points --- Currently, these only give a runtime error if OMP_CANCELLATION is true because our plain barriers don't check for cancellation while waiting GOMP_barrier_cancel() GOMP_cancel() GOMP_cancellation_point() GOMP_loop_end_cancel() GOMP_sections_end_cancel() --- taskgroup entry points --- These are implemented fully. GOMP_taskgroup_start() GOMP_taskgroup_end() --- target entry points --- These are empty (as they are in libgomp) GOMP_target() GOMP_target_data() GOMP_target_end_data() GOMP_target_update() GOMP_teams() Improvements in Barriers and Fork/Join -------------------------------------- * Barrier and fork/join code is now in its own file (which makes it easier to understand and modify). * Wait/release code is now templated and in its own file; suspend/resume code is also templated * There's a new, hierarchical, barrier, which exploits the cache-hierarchy of the Intel(r) Xeon Phi(tm) coprocessor to improve fork/join and barrier performance. ***BEWARE*** the new source files have *not* been added to the legacy Cmake build system. If you want to use that fixes wil be required. Statistics Collection Code -------------------------- * New code has been added to collect application statistics (if this is enabled at library compile time; by default it is not). The statistics code itself is generally useful, the lightweight timing code uses the X86 rdtsc instruction, so will require changes for other architectures. The intent of this code is not for users to tune their codes but rather 1) For timing code-paths inside the runtime 2) For gathering general properties of OpenMP codes to focus attention on which OpenMP features are most used. Nested Hot Teams ---------------- * The runtime now maintains more state to reduce the overhead of creating and destroying inner parallel teams. This improves the performance of code that repeatedly uses nested parallelism with the same resource allocation. Set the new KMP_HOT_TEAMS_MAX_LEVEL envirable to a depth to enable this (and, of course, OMP_NESTED=true to enable nested parallelism at all). Improved Intel(r) VTune(Tm) Amplifier support --------------------------------------------- * The runtime provides additional information to Vtune via the itt_notify interface to allow it to display better OpenMP specific analyses of load-imbalance. Support for OpenMP Composite Statements --------------------------------------- * Implement new entrypoints required by some of the OpenMP 4.1 composite statements. Improved ifdefs --------------- * More separation of concepts ("Does this platform do X?") from platforms ("Are we compiling for platform Y?"), which should simplify future porting. ScaleMP* contribution --------------------- Stack padding to improve the performance in their environment where cross-node coherency is managed at the page level. Redesign of wait and release code --------------------------------- The code is simplified and performance improved. Bug Fixes --------- *Fixes for Windows multiple processor groups. *Fix Fortran module build on Linux: offload attribute added. *Fix entry names for distribute-parallel-loop construct to be consistent with the compiler codegen. *Fix an inconsistent error message for KMP_PLACE_THREADS environment variable. llvm-svn: 219214
* Fix a crash that occurred under obscure circumstances during library shutdownJim Cownie2014-09-031-14/+20
| | | | llvm-svn: 217027
* Fix a bug where the library slept for up to KMP_BLOCKTIME before exitingJim Cownie2014-09-031-7/+37
| | | | llvm-svn: 217026
* Fix a problem on Windows machines with >32 processorsJim Cownie2014-09-031-1/+1
| | | | llvm-svn: 217024
* Commit PowerPC64 support from Carlo Bertolli at IBM.Jim Cownie2014-08-0721-53/+295
| | | | llvm-svn: 215093
* After three iterations of community review, we believe that this newJim Cownie2014-08-0527-17/+2630
| | | | | | | | | | | | | | | | | | CMAKE buld system should meet everyone's requirements. Enhanced CMake Build System Commit * Supports Linux, Mac, Windows, and Intel® Xeon Phi builds * Supports building with gcc, icc, clang, and Visual Studio compilers * Supports bulding "fat" libraries on OS/X with clang * Details and documentation on how to use build system are in Build_With_CMake.txt * To use the old CMake build system (corresponds to CMakeLists.txt.old), just rename CMakeLists.txt to CMakeLists.txt.other and rename CMakeLists.txt.old to CMakeLists.txt llvm-svn: 214850
* CMake: remove duplicated source file from listAlp Toker2014-06-021-1/+0
| | | | | | Patch by Jack Howarth! llvm-svn: 210025
* Add initial CMake build systemAlp Toker2014-06-013-1/+151
| | | | | | | | | | | | | This is not yet supported for production builds but can already produce working binaries on OS X and Linux with clang and gcc. The intention is to improve support to the point where it can integrate with the LLVM runtime platform, cover all platforms, runtime/release build configurations and run the tests. Patch by Jack Howarth! llvm-svn: 209994
* Make affinity support conditional on KMP_AFFINITY_SUPPORTEDAlp Toker2014-03-026-58/+48
| | | | | | | | | The feature was previously guarded with KMP_OS_LINUX || KMP_OS_WINDOWS but can now be enabled/disabled independently to simplify porting. Completes the work started in r202478. llvm-svn: 202613
* Add support for FreeBSDAlp Toker2014-02-2817-88/+141
| | | | | | | | | | | | | | | Port the OpenMP runtime to FreeBSD along with associated build system changes. Also begin to generalize affinity capabilities so they aren't tied explicitly to Windows and Linux. The port builds with stock clang and gmake and has no additional runtime dependencies. All but a handful of the validation suite tests are now passing on FreeBSD 10 x86_64. llvm-svn: 202478
* Restore string match behavior following changes in r202018Alp Toker2014-02-251-2/+2
| | | | llvm-svn: 202197
* Silence -Wdeprecated-register warnings with clangAlp Toker2014-02-251-2/+2
| | | | llvm-svn: 202095
* Fix linking and get the build working on OS XAlp Toker2014-02-241-1/+3
| | | | | | | | | | No version of clang installed by XCode, ToT or otherwise recognizes the flag '-no-intel-extensions' and more recent versions error out on it. Prospectively conditionalize the flag behind "icc" to fix the mainline build with clang. llvm-svn: 202030
* Fix clang compiler detection on OS XAlp Toker2014-02-241-4/+3
| | | | | | | | | | check-tools.pl was hard-wired to expect the Apple compiler version string which doesn't make much sense, especially for a LLVM project. The correctness and value of these compiler version checks still isn't clear following this build fix but they are retained for now. llvm-svn: 202029
* clang build fix: don't check for gnu tools by defaultAlp Toker2014-02-241-4/+4
| | | | | | | | | | gcc/g++ don't exist on modern OS X development environments so the failed checks for gcc were causing the build to break even with 'make compiler=clang'. (The rationale for the check refers to a file 'touch-test.c' which no longer exists in the codebase.) llvm-svn: 202027
* Fix typosAlp Toker2014-02-2425-60/+60
| | | | llvm-svn: 202018
* For your Christmas hacking pleasure.Jim Cownie2013-12-2352-2972/+4653
| | | | | | | | | | | | | | | | | This release use aligns with Intel(r) Composer XE 2013 SP1 Product Update 2 New features * The library can now be built with clang (though wiht some limitations since clang does not support 128 bit floats) * Support for Vtune analysis of load imbalance * Code contribution from Steven Noonan to build the runtime for ARM* architecture processors * First implementation of runtime API for OpenMP cancellation Bug Fixes * Fixed hang on Windows (only) when using KMP_BLOCKTIME=0 llvm-svn: 197914
* First attempt to import OpenMP runtimeJim Cownie2013-09-27119-0/+99302
llvm-svn: 191506
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