Commit Graph

35 Commits

Author SHA1 Message Date
Andrey Churbanov d1c5504097 added support for PPC architectures (version 3): initial patch provided by Carlo Bertolli, latest version from Johnny Peyton
llvm-svn: 226479
2015-01-19 18:29:35 +00:00
Andrey Churbanov b8039074d0 Two fixes sent by C.Bergstrom: MB() does real synch for ARM; _Quad is not used when not available.
llvm-svn: 226464
2015-01-19 14:00:00 +00:00
Andrey Churbanov f6451d90d6 few fixes for ittnotify iterface (used by Intel(R) VTune Amplifier)
llvm-svn: 226283
2015-01-16 15:58:03 +00:00
Andrey Churbanov 19be978ecf cleanup changes of cmake-building for Intel(R) Many Integrated Core Architecture
llvm-svn: 226272
2015-01-16 13:05:23 +00:00
Andrey Churbanov d315ceac18 cleanup changes of building for Intel(R) Many Integrated Core Architecture
llvm-svn: 226271
2015-01-16 12:54:51 +00:00
Andrey Churbanov 169d02f832 fixed the missed bracket introduced by checkin rev 225792
llvm-svn: 225796
2015-01-13 15:16:49 +00:00
Andrey Churbanov f28f613eda This patch enables the use of KMP_AFFINITY=balanced on non-MIC Architectures. The restriction for using balanced affinity on non-MIC architectures is it only works for one-package machines.
llvm-svn: 225794
2015-01-13 14:54:00 +00:00
Andrey Churbanov 3984da5608 small fixes to the hierarchical barrier
llvm-svn: 225793
2015-01-13 14:47:02 +00:00
Andrey Churbanov cbda868206 aarch64 port sent by C. Bergstrom
llvm-svn: 225792
2015-01-13 14:43:35 +00:00
Andrey Churbanov 17cce42f4b Return the architecture by probing predefined compiler macros
llvm-svn: 225789
2015-01-13 14:35:23 +00:00
Jim Cownie 4cc4bb4c60 I apologise in advance for the size of this check-in. At Intel we do
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
2014-10-07 16:25:50 +00:00
Jim Cownie 77c2a634b0 Fix a crash that occurred under obscure circumstances during library shutdown
llvm-svn: 217027
2014-09-03 11:34:33 +00:00
Jim Cownie 07ea89f637 Fix a bug where the library slept for up to KMP_BLOCKTIME before exiting
llvm-svn: 217026
2014-09-03 11:10:54 +00:00
Jim Cownie 12ad3b1911 Fix a problem on Windows machines with >32 processors
llvm-svn: 217024
2014-09-03 10:51:02 +00:00
Jim Cownie 3051f9761e Commit PowerPC64 support from Carlo Bertolli at IBM.
llvm-svn: 215093
2014-08-07 10:12:54 +00:00
Jim Cownie 3b81ce6b15 After three iterations of community review, we believe that this new
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
2014-08-05 09:32:28 +00:00
Alp Toker 1d1c4fb81c CMake: remove duplicated source file from list
Patch by Jack Howarth!

llvm-svn: 210025
2014-06-02 13:09:24 +00:00
Alp Toker c2d5e61177 Fix typos
llvm-svn: 209995
2014-06-01 18:28:36 +00:00
Alp Toker 7198f529ad Add initial CMake build system
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
2014-06-01 18:01:33 +00:00
Jim Cownie 18d8473f18 Add testsuite from OpenUH
llvm-svn: 208472
2014-05-10 17:02:09 +00:00
Jim Cownie 33f7b24d9f Add the offload directory which contains the code needed to support
OpenMP 4.0 "target" directives. This will need more work for
generality, but we want to get it out and visible to the community.

llvm-svn: 205909
2014-04-09 15:40:23 +00:00
Tanya Lattner 6931d6774a Revert commit (testing commit hook).
llvm-svn: 202868
2014-03-04 18:06:04 +00:00
Tanya Lattner 26bbf413be Testing commit hook.
llvm-svn: 202867
2014-03-04 18:03:47 +00:00
Alp Toker 98758b09c8 Make affinity support conditional on KMP_AFFINITY_SUPPORTED
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
2014-03-02 04:12:06 +00:00
Alp Toker 763b93965c Add support for FreeBSD
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
2014-02-28 09:42:41 +00:00
Alp Toker afc9eb33fd Restore string match behavior following changes in r202018
llvm-svn: 202197
2014-02-25 22:04:37 +00:00
Alp Toker d71f168602 Silence -Wdeprecated-register warnings with clang
llvm-svn: 202095
2014-02-25 00:38:58 +00:00
Alp Toker 9a0a20714f Fix linking and get the build working on OS X
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
2014-02-24 12:29:14 +00:00
Alp Toker c5df02fa0d Fix clang compiler detection on OS X
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
2014-02-24 12:29:09 +00:00
Alp Toker 0032b4d519 clang build fix: don't check for gnu tools by default
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
2014-02-24 11:47:00 +00:00
Alp Toker 8f2d3f0f90 Fix typos
llvm-svn: 202018
2014-02-24 10:40:15 +00:00
Jim Cownie 181b4bb3bb For your Christmas hacking pleasure.
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
2013-12-23 17:28:57 +00:00
Jim Cownie 885d7fa8a4 Update web pages to include style sheets and referenced documents missed before.
llvm-svn: 191888
2013-10-03 11:55:28 +00:00
Andrey Churbanov cfda451d4f typo fixed as a test commit
llvm-svn: 191881
2013-10-03 07:27:25 +00:00
Jim Cownie 5e8470af09 First attempt to import OpenMP runtime
llvm-svn: 191506
2013-09-27 10:38:44 +00:00