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Altera_Forum
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11 years ago

Combine Altera OpenCL SDK with other OpenCL platform

Hi, is it possible to combine Altera OpenCL platform with other OpenCL platform (e.g. NVIDIA) so that I can use both devices together in my host application? I wrote a code to list all availabl...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

I tried to use both OpenCL libraries from NVIDIA and Altera using dynamic loading. I modified the code for listing OpenCL platform from here (http://dhruba.name/2012/08/13/opencl-cookbook-listing-all-platforms-and-their-attributes/) by loading all OpenCL libraries from Altera (version 13.0sp1.234). I also loaded their dependencies along. Now, I can list the platform from Altera and NVIDIA separately but in one host application.

However, I found problem when loading NVIDIA library first, followed by Altera. There's segmentation fault after I allocate memory for cl_platform_id and call clgetplatformids(). The order matters here. I still couldn't figure out why. I attached the source code and library files that I used. You can adjust them to your machine's environment. I would really appreciate if somebody could give me the idea why this error happened.

Cheers!