OpenCL
Overview
OpenCL™ (Open Computing Language) is an open, royalty-free standard for cross-platform, parallel programming of diverse accelerators found in supercomputers, cloud servers, personal computers, mobile devices and embedded platforms. OpenCL greatly improves the speed and responsiveness of a wide spectrum of applications in numerous market categories including professional creative tools, scientific and medical software, vision processing, and neural network training and inferencing.
Setting the environment to use OpenCL on Aurora
The Intel Programming Environment is the main environment on Aurora. The Intel Compute Runtime is part of this environment and grants access to OpenCL. The Intel Compute Runtime is loaded by default in your environment.
> module list
Currently Loaded Modules:
1) gcc/11.2.0 3) intel_compute_runtime/release/agama-devel-551 5) libfabric/1.15.2.0 7) cray-libpals/1.3.3
2) mpich/51.2/icc-all-pmix-gpu 4) oneapi/eng-compiler/2022.12.30.003 6) cray-pals/1.3.3
Building on Aurora
OpenCL is a C API that can be used in your application by including the
CL/opencl.h file:
Application that use the OpenCL API need to be linked to the OpenCL
loader library by using the -lOpenCL linker flag.
C++ bindings exist and can be used in C++ applications by including the
CL/opencl.hpp file:
OpenCL Documentation
The OpenCL Specification and the OpenCL Reference Pages are provided by Khronos.
Documentation for the C++ bindings is available here: OpenCL C++ Bindings.