OverTile - GPU Stencil Compiler for Overlapped Tiling

Building

Dependencies

• CMake 2.8+
• Bison

By default, OverTile is configured to build against an internal version of LLVM maintained as a git submodule that tracks known-good, up-to-date versions of LLVM. Configuring and building OverTile is as easy as:

$ git submodule init
$ git submodule update
$ mkdir build && cd build
$ cmake -DUSE_INTERNAL_LLVM=YES -DCMAKE_BUILD_TYPE=Debug -DLLVM_TARGETS_TO_BUILD=X86 ..
$ make

The built compiler library will be in bin/otsc of your build directory.

If you would like to use your own installation of LLVM, please configure with -DUSE_INTERNAL_LLVM=NO and set OT_LLVM_BINARY_DIR to an installation of LLVM. Note that this installation must have been built with CMake.

Running

For a C/C++ file with embedded SSP, the compiler can be invoked with:

$ bin/otsc -c my-file.cpp -o my-file.out.cu

and then compiled with nvcc:

$ nvcc -O3 my-file.out.cu -o my-file