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No OpenCL included in Cat 12.4?

VirtualLarry

No Lifer
Aug 25, 2001
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The download page for 12.4 mentions that OpenCL is included, and when I installed it, I installed the whole package, including the "APP SDK".

But GPU-Z is reporting no OpenCL support, and BOINC 7.0.28 and Einstein@Home are not showing any OpenCL WUs.
 

ViRGE

Elite Member, Moderator Emeritus
Oct 9, 1999
31,516
165
106
GPU-Z often fails to report OpenCL correctly. However the fact that your OpenCL applications aren't working is a bit more concerning. I'd suggest grabbing something easy to debug like LuxMark and seeing if that works, and then work from there. Cat 12.4 should definitely have installed an OpenCL driver.
 

VirtualLarry

No Lifer
Aug 25, 2001
51,927
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Well, I'm done testing. Apparently, OpenCL is unsupported on the E-350 APU at this point.

Edit: Perhaps I'm wrong. I just read that Einstein@Home requires a Radeon 5000 or newer card to run OpenCL. I was hopeful I could run it on my APU (OpenCL is openCL, right? Except when it's not OpenCL).
 
Last edited:

OVerLoRDI

Diamond Member
Jan 22, 2006
5,491
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I have two 6970s mining bitcoins via opencl on cats 12.4. Fresh install of windows, so it must be in 12.4 somewhere.
 

Ken g6

Programming Moderator, Elite Member
Moderator
Dec 11, 1999
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Supposedly, OpenCL support on the 4000 series cards was "beta" or something. There are differences; for instance, you can return 8-bit ints on the 5000 series, but can't return anything smaller than 32 bits on the 4000 series.

If the PrimeGrid OpenCL app, for instance, works on your machine, then you have OpenCL. Einstein@Home might just need a newer card.
 

VirtualLarry

No Lifer
Aug 25, 2001
51,927
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Hmm, I didn't realize that PrimeGrid supported OpenCL.

I enabled ATI/AMD GPU crunching under my PrimeGrid prefs, and checked off the sub-project that allows ATI GPUs.

I then updated, and I got two WUs. They ran on the ATI GPU.

However, both of them errored out with "Computation error", one after 6 seconds, one after 7 seconds.

Something similar was reported by APU users in a referenced Einstein@Home thread in the DC forum in my other thread about this issue.
 
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