1 Topic by Nintendo Maniac 64 (edited by Nintendo Maniac 64 16-02-2019 06:16:28)

Topic: Minimum required OpenCL version for GPU acceleration?

According to this 5 year old post by MAG79 (back in the days of SVP 3.1), the minimum required OpenCL version was v1.1.

However, from everything I can tell, SVP4 requires OpenCL 1.2 at minimum for GPU acceleration.


So am I correct? Is OpenCL 1.2 the minimum requirement for GPU acceleration in SVP4?

Re: Minimum required OpenCL version for GPU acceleration?

I believe 1.1 should be enough

3 Reply by Nintendo Maniac 64 (edited by Nintendo Maniac 64 16-02-2019 20:48:57)

Re: Minimum required OpenCL version for GPU acceleration?

Well the only discrepancy is that it seems like the Geforce 8000 series only supports 1.1 and I know for a fact that my 8800GS worked in SVP with hardware acceleration (as the wiki's GPU compatibility chart shows).

However the AMD and Intel GPUs on that same chart line up with their OpenCL 1.2 support, and this would also explain some of the results I've gotten.  That is, SVP couldn't use an HD4670 but could use an HD5870 (on Windows), and the HD4670 only supports OpenCL 1.1 while the HD5870 supports OpenCL 1.2.

Additionally on modern Linux (anything newer than Ubuntu 14.04), any AMD GPU older than the GCN architecture is only supported via the mesa drivers. While mesa is very good nowadays, they are unfortunately still stuck on only OpenCL 1.1 support, resulting in things like my HD5870 being unable to be used by SVP (which leaves the HD5000 and HD6000 in a sort of no-mans-land with regards to GPGPU on Linux for the time being).

4 Reply by James D (edited by James D 16-02-2019 23:00:43)

  • Thanks: 97

Re: Minimum required OpenCL version for GPU acceleration?

I feel deja vu, and you, Chainik? smile

5 Reply by Nintendo Maniac 64 (edited by Nintendo Maniac 64 16-02-2019 23:11:24)

Re: Minimum required OpenCL version for GPU acceleration?

James D wrote:

I feel deja vu, and you, Chainik? smile

I'm guessing that much of what I'm saying has already been said before?  If so then I apologize as I thought this genuinely was stuff that had not been previously realized.

6 Reply by James D (edited by James D 16-02-2019 23:34:42)

  • Thanks: 97

Re: Minimum required OpenCL version for GPU acceleration?

Nintendo Maniac 64 wrote:
James D wrote:

I feel deja vu, and you, Chainik? smile

I'm guessing that much of what I'm saying has already been said before?  If so then I apologize as I thought this genuinely was stuff that had not been previously realized.

Something similar - about AMD Windows XP drivers without OpenCL for ancient cards if I recall correctly. Your question might be different but still similar to that notoriously known.