ATI Radeon HD 4670 256 MB

Questions and Answers : GPU applications : ATI Radeon HD 4670 256 MB
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Profile Stephen_Hawkins
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Message 1744036 - Posted: 22 Nov 2015, 14:19:34 UTC
Last modified: 22 Nov 2015, 14:30:03 UTC

Forgive me if this has been asked and answered. I am running OS-X 10.11.1 El Capitan all seti@home data that requires a GPU errors out after a very short period. Boinc 7.6.12 The drivers with El Capitan seem to like the card OK but set@home does not. What am I missing here?

Thanks,
Stephen Hawkins
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Message 1744046 - Posted: 22 Nov 2015, 15:38:42 UTC - in response to Message 1744036.  

Hi Stephen,

There is a long thread about this over on Number Crunching where they are discussing this

http://setiathome.berkeley.edu/forum_thread.php?id=78410&postid=1738642

you might want to read through it and see what they have to say
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Message 1747670 - Posted: 8 Dec 2015, 11:59:40 UTC - in response to Message 1744046.  

Hello,
I have the same issue with the 4670 card on an iMac, with OS 10.10.5.

In the other thread, one recommendation was to remove file "MultiBeam_Kernels_r2936.cl_RadeonHD4670.bin_V7_14.5.0_10" - which I did. Restarted BOINC. But all my SETI work units (with CPU & GPU) still fail immediately with a computation error. In the event log though, there is no error message, just "Task xyz finished" and "Output file for task xyz absent".

In the other thread I cannot post due to missing work credits, which I cannot produce because the whole shebang is not working.

Any help appreciated. At the moment, I cannot compute anything for SETI.

Latest BOINC 7.612, fresh install.

Thx
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Message 1747715 - Posted: 8 Dec 2015, 20:51:10 UTC

A quick look at the stderr for one of your tasks shows the following - I've highlighted a section at the bottom which may give a clue to the source of your problem (I'm not familiar withe AMD/ATI GPU so this may be a red herring)

Stderr output

<core_client_version>7.6.12</core_client_version>
<![CDATA[
<message>
process exited with code 225 (0xe1, -31)
</message>
<stderr_txt>
OpenCL platform detected: Apple
Number of OpenCL devices found : 1
BOINC assigns slot on device #0.
Info: BOINC provided OpenCL device ID used
WARNING: This application needs newer GPU, at least ATI Radeon HD 5000 needed, exiting !
</stderr_txt>
]]>

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Message 1747721 - Posted: 8 Dec 2015, 20:57:50 UTC

While you can't post to the thread Zalster pointed you at you are able to read it - I've just had a quick look and have found this from one of the ATI/AMD GPU Gurus:

http://setiathome.berkeley.edu/forum_thread.php?id=78410&postid=1738642

This doesn't look very promising :-(
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Message 1747845 - Posted: 9 Dec 2015, 4:26:34 UTC - in response to Message 1747721.  

Thanks, Bob, for your efforts.
I had already read the whole thread top to bottom, and removing that particular file was the only thing I found that I could try, to no avail.

I have now switched off "GPU" in my projects prefs, but so far it looks I do not receive any work units that are CPU-only.

Alas, I don't really have any more time to spend on this issue. Thanks - will keep my subscription to this thread in case anybody finds a solution at some point.

Cheers-
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Message 1747954 - Posted: 9 Dec 2015, 18:08:39 UTC

I'd also keep an eye on the thread in Number Crunching because a lot of developments are reported and tried there before appearing out here.


(On the problem of not getting any CPU tasks - check your options allow CPU processing, I've fallen over that one a couple of times recently)
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Message 1748109 - Posted: 10 Dec 2015, 9:42:21 UTC - in response to Message 1747715.  

WARNING: This application needs newer GPU, at least ATI Radeon HD 5000 needed, exiting !

Only "opencl_ati5_mac" and "opencl_ati5zc_mac" apps say that
http://setiathome.berkeley.edu/result.php?resultid=4581386641
http://setiathome.berkeley.edu/result.php?resultid=4581344768

The plain "opencl_ati_mac" tries to run:
http://setiathome.berkeley.edu/result.php?resultid=4580522160

So deleting all *.bin* files may help/test to run at least one "opencl_ati_mac" task
 


- ALF - "Find out what you don't do well ..... then don't do it!" :)
 
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Questions and Answers : GPU applications : ATI Radeon HD 4670 256 MB


 
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