A c++-20 template based variable lenght vector library with an OpenCL backend.
ocl is a c++-20 template based variable length vector library with an OpenCL backend. It defines a template class ocl::dvec<_T> with common vector operations like addition, subtraction, multiplication using expression templates. Most of these vector operations return expressions instead real result. These expressions are executed during the assignment to a vector to avoid temporary results requiring large amounts of memory if the vector lengths are large.
- cmake ist the used build system
- only linux as host and target system was tested and
- gcc or clang are the only compilers used to date
create a build directory in the root directory of the project, change into the directory and then configure:
mkdir buildcd buildCC=clang-18 CXX=clang++-18 cmake -DCMAKE_BUILD_TYPE=release ..
You may also use gcc instead of clang:
CC=gcc-14 CXX=g++-14 cmake -DCMAKE_BUILD_TYPE=release ..
The compilation to a specific ABI is requested by configuring the library with
cmake -DCMAKE_BUILD_TYPE=release -DOCL_GCC_ARCH=x86-64-v3 .. -DCFTAL_GCC_ARCH=x86-64-v3 ..
where x64-64-v3 is one of the possible arguments to gcc -march=.
The variables OCL_GCC_ARCH and CFTAL_GCC_ARCH default to native.
During the build a number of test programs are built in ./test.
This project is licensed under the LGPL v2.1License.