HD 4890 getting no WUs, says no OpenCL support
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Azmodes
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Message 24215 - Posted: 27 Aug 2017, 19:43:19 UTC
Last modified: 27 Aug 2017, 19:47:29 UTC

This older ATI card refuses to fetch any GPU tasks with all the projects I have tried (which support AMD/ATI cards, like Seti, Einstein, PrimeGrid), except for Moo!Wrapper, which works fine. That includes Collatz, even though it says that the card is supported and I downloaded the legacy driver software and not the latest. The event log claims my card doesn't support OpenCL.

Here's the relevant parts from my log:

6 27.08.2017 21:25:40 CAL: ATI GPU 0: ATI Radeon HD 4700/4800 (RV740/RV770) (CAL version 1.4.1734, 1024MB, 992MB available, 2720 GFLOPS peak)
7 27.08.2017 21:25:40 App version needs OpenCL but GPU doesn't support it
[..]
126 Collatz Conjecture 27.08.2017 21:38:47 work fetch resumed by user
127 Collatz Conjecture 27.08.2017 21:38:48 Sending scheduler request: To fetch work.
128 Collatz Conjecture 27.08.2017 21:38:48 Requesting new tasks for AMD/ATI GPU
129 Collatz Conjecture 27.08.2017 21:38:50 Scheduler request completed: got 0 new tasks


Any specific driver acrobatics I have to perform here in order to get it to recognise OpenCL?

Thanks in advance.

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Message 24217 - Posted: 28 Aug 2017, 11:26:51 UTC - in response to Message 24215.

This older ATI card refuses to fetch any GPU tasks with all the projects I have tried (which support AMD/ATI cards, like Seti, Einstein, PrimeGrid), except for Moo!Wrapper, which works fine. That includes Collatz, even though it says that the card is supported and I downloaded the legacy driver software and not the latest. The event log claims my card doesn't support OpenCL.

Here's the relevant parts from my log:
6 27.08.2017 21:25:40 CAL: ATI GPU 0: ATI Radeon HD 4700/4800 (RV740/RV770) (CAL version 1.4.1734, 1024MB, 992MB available, 2720 GFLOPS peak)
7 27.08.2017 21:25:40 App version needs OpenCL but GPU doesn't support it
[..]
126 Collatz Conjecture 27.08.2017 21:38:47 work fetch resumed by user
127 Collatz Conjecture 27.08.2017 21:38:48 Sending scheduler request: To fetch work.
128 Collatz Conjecture 27.08.2017 21:38:48 Requesting new tasks for AMD/ATI GPU
129 Collatz Conjecture 27.08.2017 21:38:50 Scheduler request completed: got 0 new tasks


Any specific driver acrobatics I have to perform here in order to get it to recognise OpenCL?

Thanks in advance.


I would try the latest drivers and see what happens, the older drivers were older and slower anyway.

Azmodes
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Message 24218 - Posted: 28 Aug 2017, 22:44:30 UTC
Last modified: 28 Aug 2017, 22:47:22 UTC

Alright, "latest drivers" would be which exactly from this list? Should I just select any kind of newer card series?

Letting Windows check for driver updates doesn't work.

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Message 24221 - Posted: 30 Aug 2017, 20:24:34 UTC

Manually Select Driver

Drop One:Desktop Graphics
Drop Two:Radeon HD Graphic
Drop Three:Radeon HD 4XXX Series
Then Select your OS - Download and Install
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Azmodes
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Message 24222 - Posted: 30 Aug 2017, 22:20:44 UTC

Yes, that's exactly what I did the first time and what directed me to the legacy driver linked in the OP.

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Message 24223 - Posted: 30 Aug 2017, 23:35:44 UTC

2013 was last date of any driver for a modern OS. This only support OpenCL 1 and with that you are limited on many things. While a 4890 was great it is well old and even a 60 NVIDIA would have more power and cost much less in power to run. Sorry that is the facts and things move quickly in the world of computers for sure.
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Message 24225 - Posted: 31 Aug 2017, 9:08:44 UTC
Last modified: 31 Aug 2017, 9:11:07 UTC

Yeah, I thought as much. I think I was just confused because it says on the main page

OpenCL Drivers are available from:
AMD Video Driver - Caution: The HD 4770 and 48xx GPUs require the Legacy AMD Catalyst driver which is NOT the same as the current AMD Catalyst driver.


I took that as implying that my card is supported, but I now notice that above it also says
For GPU processing:
AMD Radeon HD 5000 or later graphics card with OpenCL 1.1 support

So I guess this answers it, my bad. Apart from Moo!Wrapper, does anyone know any other projects that might support the card?

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Message 24232 - Posted: 1 Sep 2017, 22:59:52 UTC

The HD4000 series did only ever have Beta OpenCL support. Which is a shame since the RX 570 has only a small fraction better PPW for DP.
I would probably stick Cat 12.8, 12.10, or 13.4 for your HD4890. Cat 13.1 has a known APP runtime 1084.4 compiler bug. So should be avoided for GPGPU processing.

I think Moo is the last project that still support Brook/CAL processing and the rest have switched to OpenCL. I still run my pair of HD6870's on Moo every so often using the Brook/CAL app. It is faster than the Open CL app and doesn't require as much overhead. My HD4870 sadly sits on a shelf next to my HD3850.


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Message boards : Windows : HD 4890 getting no WUs, says no OpenCL support


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