2017-01-26 05:27:24 +08:00
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README for the LLVM* OpenMP* Offloading Runtime Library (libomptarget)
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======================================================================
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How to Build the LLVM* OpenMP* Offloading Runtime Library (libomptarget)
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========================================================================
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In-tree build:
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$ cd where-you-want-to-live
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Check out openmp (libomptarget lives under ./libomptarget) into llvm/projects
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$ cd where-you-want-to-build
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$ mkdir build && cd build
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$ cmake path/to/llvm -DCMAKE_C_COMPILER=<C compiler> -DCMAKE_CXX_COMPILER=<C++ compiler>
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$ make omptarget
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Out-of-tree build:
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$ cd where-you-want-to-live
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Check out openmp (libomptarget lives under ./libomptarget)
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$ cd where-you-want-to-live/openmp/libomptarget
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$ mkdir build && cd build
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$ cmake path/to/openmp -DCMAKE_C_COMPILER=<C compiler> -DCMAKE_CXX_COMPILER=<C++ compiler>
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$ make
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2017-12-27 17:15:10 +08:00
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For details about building, please look at README.rst in the parent directory.
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2017-01-26 05:27:24 +08:00
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Architectures Supported
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=======================
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2017-12-27 17:15:10 +08:00
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The current library has been only tested in Linux operating system and the
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following host architectures:
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2017-01-26 05:27:24 +08:00
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* Intel(R) 64 architecture
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* IBM(R) Power architecture (big endian)
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* IBM(R) Power architecture (little endian)
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2017-03-07 05:00:07 +08:00
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* ARM(R) AArch64 architecture (little endian)
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2017-01-26 05:27:24 +08:00
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The currently supported offloading device architectures are:
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* Intel(R) 64 architecture (generic 64-bit plugin - mostly for testing purposes)
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* IBM(R) Power architecture (big endian) (generic 64-bit plugin - mostly for testing purposes)
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* IBM(R) Power architecture (little endian) (generic 64-bit plugin - mostly for testing purposes)
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2017-03-07 05:00:07 +08:00
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* ARM(R) AArch64 architecture (little endian) (generic 64-bit plugin - mostly for testing purposes)
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2017-01-26 05:27:24 +08:00
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* CUDA(R) enabled 64-bit NVIDIA(R) GPU architectures
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Supported RTL Build Configurations
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==================================
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Supported Architectures: Intel(R) 64, IBM(R) Power 7 and Power 8
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---------------------------
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| gcc | clang |
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--------------|------------|------------|
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| Linux* OS | Yes(1) | Yes(2) |
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-----------------------------------------
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(1) gcc version 4.8.2 or later is supported.
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(2) clang version 3.7 or later is supported.
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Front-end Compilers that work with this RTL
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===========================================
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The following compilers are known to do compatible code generation for
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2017-12-27 17:15:10 +08:00
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this RTL:
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2017-01-26 05:27:24 +08:00
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- clang (from https://github.com/clang-ykt )
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2017-12-27 17:15:10 +08:00
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- clang (development branch at http://clang.llvm.org - several features still
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2017-01-26 05:27:24 +08:00
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under development)
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-----------------------------------------------------------------------
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Notices
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=======
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2017-12-27 17:15:10 +08:00
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This library and related compiler support is still under development, so the
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2017-01-26 05:27:24 +08:00
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employed interface is likely to change in the future.
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*Other names and brands may be claimed as the property of others.
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