Difference between revisions of "OpenCL"
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OpenCL™ (Open Computing Language) is a low-level API for heterogeneous computing that runs on GPUs. Using the OpenCL API, developers can launch compute kernels written using a limited subset of the C programming language on a GPU. | OpenCL™ (Open Computing Language) is a low-level API for heterogeneous computing that runs on GPUs. Using the OpenCL API, developers can launch compute kernels written using a limited subset of the C programming language on a GPU. | ||
<!--Modules--> | <!--Modules--> | ||
| − | == | + | ==Environment Modules== |
| − | + | Run <code>module spider {{#var:app}}</code> to find out what environment modules are available for this application. | |
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| − | < | ||
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==System Variables== | ==System Variables== | ||
| − | * HPC_{{uc:{{#var:app}}}}_DIR | + | * HPC_{{uc:{{#var:app}}}}_DIR - installation directory |
* HPC_{{uc:{{#var:app}}}}_INC | * HPC_{{uc:{{#var:app}}}}_INC | ||
* HPC_{{uc:{{#var:app}}}}_LIB | * HPC_{{uc:{{#var:app}}}}_LIB | ||
Revision as of 20:47, 10 June 2022
Description
OpenCL™ (Open Computing Language) is a low-level API for heterogeneous computing that runs on GPUs. Using the OpenCL API, developers can launch compute kernels written using a limited subset of the C programming language on a GPU.
Environment Modules
Run module spider opencl to find out what environment modules are available for this application.
System Variables
- HPC_OPENCL_DIR - installation directory
- HPC_OPENCL_INC
- HPC_OPENCL_LIB
Additional Information
The following example shows how to build a sample code with OpenCL.
[prescott@r11a-s17 ~]$ mkdir opencl [prescott@r11a-s17 ~]$ cd opencl [prescott@r11a-s17 opencl]$ module load opencl [prescott@r11a-s17 opencl]$ wget -q https://raw.github.com/smistad/OpenCL-Getting-Started/master/main.c [prescott@r11a-s17 opencl]$ wget -q https://raw.github.com/smistad/OpenCL-Getting-Started/master/vector_add_kernel.cl [prescott@r11a-s17 opencl]$ gcc -c -I$HPC_OPENCL_INC main.c -o main.o [prescott@r11a-s17 opencl]$ gcc main.o -o myopenclprog -l OpenCL
Usage Policy
OpenCL is a trademark of Apple Inc., used under license by Khronos.
Installation
The OpenCL implementation installed on the cluster is the one included with the NVIDIA CUDA Toolkit.