llvm-project

History

Alexey Bataev 4ad9286a57 [OPENMP]Rename loopTripCnt member data to LoopTripCnt, NFC. Rename variable to follow LLVM coding standard. llvm-svn: 365368		2019-07-08 18:45:48 +00:00
..
cmake/Modules	Update more file headers across all of the LLVM projects in the monorepo	2019-01-19 10:56:40 +00:00
deviceRTLs	[OPENMP]Make __kmpc_push_tripcount thread safe.	2019-07-08 15:30:23 +00:00
include	[OpenMP][libomptarget] Enable usage of unified memory for declare target link variables	2019-06-04 15:05:53 +00:00
plugins	[OpenMP][libomptarget] Add support for declare target to clause under unified memory	2019-06-19 15:48:10 +00:00
src	[OPENMP]Rename loopTripCnt member data to LoopTripCnt, NFC.	2019-07-08 18:45:48 +00:00
test	[OpenMP][libomptarget] Enable requires flags for target libraries.	2019-05-21 19:35:02 +00:00
CMakeLists.txt	[libomptarget] Introduce LIBOMPTARGET_ENABLE_DEBUG cmake option.	2019-03-26 15:19:15 +00:00
README.txt	Unify build documentation and convert to reStructuredText	2017-12-27 09:15:10 +00:00

README.txt

    README for the LLVM* OpenMP* Offloading Runtime Library (libomptarget)
    ======================================================================

How to Build the LLVM* OpenMP* Offloading Runtime Library (libomptarget)
========================================================================
In-tree build:

$ cd where-you-want-to-live
Check out openmp (libomptarget lives under ./libomptarget) into llvm/projects
$ cd where-you-want-to-build
$ mkdir build && cd build
$ cmake path/to/llvm -DCMAKE_C_COMPILER=<C compiler> -DCMAKE_CXX_COMPILER=<C++ compiler>
$ make omptarget

Out-of-tree build:

$ cd where-you-want-to-live
Check out openmp (libomptarget lives under ./libomptarget)
$ cd where-you-want-to-live/openmp/libomptarget
$ mkdir build && cd build
$ cmake path/to/openmp -DCMAKE_C_COMPILER=<C compiler> -DCMAKE_CXX_COMPILER=<C++ compiler>
$ make

For details about building, please look at README.rst in the parent directory.

Architectures Supported
=======================
The current library has been only tested in Linux operating system and the
following host architectures:
* Intel(R) 64 architecture
* IBM(R) Power architecture (big endian)
* IBM(R) Power architecture (little endian)
* ARM(R) AArch64 architecture (little endian)

The currently supported offloading device architectures are:
* Intel(R) 64 architecture (generic 64-bit plugin - mostly for testing purposes)
* IBM(R) Power architecture (big endian) (generic 64-bit plugin - mostly for testing purposes)
* IBM(R) Power architecture (little endian) (generic 64-bit plugin - mostly for testing purposes)
* ARM(R) AArch64 architecture (little endian) (generic 64-bit plugin - mostly for testing purposes)
* CUDA(R) enabled 64-bit NVIDIA(R) GPU architectures

Supported RTL Build Configurations
==================================
Supported Architectures: Intel(R) 64, IBM(R) Power 7 and Power 8

              ---------------------------
              |   gcc      |   clang    |
--------------|------------|------------|
| Linux* OS   |  Yes(1)    |  Yes(2)    |
-----------------------------------------

(1) gcc version 4.8.2 or later is supported.
(2) clang version 3.7 or later is supported.


Front-end Compilers that work with this RTL
===========================================

The following compilers are known to do compatible code generation for
this RTL:
  - clang (from https://github.com/clang-ykt )
  - clang (development branch at http://clang.llvm.org - several features still
    under development)

-----------------------------------------------------------------------

Notices
=======
This library and related compiler support is still under development, so the
employed interface is likely to change in the future.

*Other names and brands may be claimed as the property of others.