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grumpy

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Message 63335 - Posted: 8 Apr 2015, 17:57:20 UTC

Well.... that's not all, other problems on different runs like dud wu's (null) etc.

Stderr output
<core_client_version>7.4.42</core_client_version>
<![CDATA[
<stderr_txt>

</stderr_txt>
]]>

Patience...
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Message 63338 - Posted: 8 Apr 2015, 20:44:27 UTC

Do the dud ones run for long?
Team AnandTech - SETI@H, Muon1 DPAD, F@H, MW@H, A@H, LHC@H, POGS, R@H, Einstein@H, DHEP.

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Message 63366 - Posted: 12 Apr 2015, 10:48:08 UTC

ttt

This thread needs stickifying, also mention of the 5800/5900 cards in the title would be handy.
Team AnandTech - SETI@H, Muon1 DPAD, F@H, MW@H, A@H, LHC@H, POGS, R@H, Einstein@H, DHEP.

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Message 63385 - Posted: 16 Apr 2015, 0:30:54 UTC - in response to Message 63338.  

Do the dud ones run for long?

They run the same amount of time has the validated ones.
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Message 63411 - Posted: 20 Apr 2015, 7:42:02 UTC

Hello all. I have just had 17 WU fail on my machine which is running HD8570D + HD6670 Dual Graphics set up - using Driver Packaging Version 14.501.1003-141120a-177998C and Catalyst Version 14.12 AMD Catalyst Omega Software. They all ran for about 3 secs only. Both MilkyWay@Home 1.02 windows_x86_64 (opencl_amd_ati) and Milkyway@Home Separation (Modified Fit) v1.36 (opencl_ati_101) applications are failing. Any advice would be gratefully received.


<core_client_version>7.4.42</core_client_version>
<![CDATA[
<message>
Incorrect function.
(0x1) - exit code 1 (0x1)
</message>
<stderr_txt>
<search_application> milkyway_separation 1.36 Windows x86_64 double OpenCL </search_application>
Reading preferences ended prematurely
BOINC GPU type suggests using OpenCL vendor 'Advanced Micro Devices, Inc.'
Error loading Lua script 'astronomy_parameters.txt': [string "number_parameters: 4..."]:1: '<name>' expected near '4'
Switching to Parameter File
Using AVX path
Found 1 platform
Platform 0 information:
Name: AMD Accelerated Parallel Processing
Version: OpenCL 2.0 AMD-APP (1642.5)
Vendor: Advanced Micro Devices, Inc.
Extensions: cl_khr_icd cl_khr_d3d10_sharing cl_khr_d3d11_sharing cl_khr_dx9_media_sharing cl_amd_event_callback cl_amd_offline_devices
Profile: FULL_PROFILE
Using device 1 on platform 0
Found 2 CL devices
Device 'Turks' (Advanced Micro Devices, Inc.:0x1002) (CL_DEVICE_TYPE_GPU)
Board: AMD Radeon HD 6670
Driver version: 1642.5 (VM)
Version: OpenCL 1.2 AMD-APP (1642.5)
Compute capability: 0.0
Max compute units: 6
Clock frequency: 844 Mhz
Global mem size: 2147483648
Local mem size: 32768
Max const buf size: 65536
Double extension: (none)
Device doesn't support double precision
Failed to calculate likelihood
<background_integral> 1.#QNAN0000000000 </background_integral>
<stream_integral> 1.#QNAN0000000000 1.#QNAN0000000000 1.#QNAN0000000000 </stream_integral>
<background_likelihood> 1.#QNAN0000000000 </background_likelihood>
<stream_only_likelihood> 1.#QNAN0000000000 1.#QNAN0000000000 1.#QNAN0000000000 </stream_only_likelihood>
<search_likelihood> 1.#QNAN0000000000 </search_likelihood>
00:49:51 (8620): called boinc_finish
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Message 63412 - Posted: 20 Apr 2015, 9:17:25 UTC

Device doesn't support double precision

Here is problem #1
Milky Way requires double precision capable cards.
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Message 63413 - Posted: 20 Apr 2015, 10:12:43 UTC - in response to Message 63412.  

Hi, thanks swiftmallard for the speedy reply. I had spotted that error but do not understand what it means. I have been able to run tasks intermittently as recently as 14+15th April, so some wu's do seem to be fine on my pc. This is a recent problem, I have not had this occur before. Here is the link to my boincstats page showing that I have been able to run WU's through April and March using the same cards as I have mentioned earlier. Unfortunately I am unable to find out which applications have been running successfully as I can only see the 17 failed WU's.

So if I untick ''use GPU'' so that milkyway only uses my APU, which has been working fine prior to the installation of the second card, should this then resolve the issues? Thanks for the help.
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Message 63415 - Posted: 20 Apr 2015, 10:23:24 UTC - in response to Message 63413.  
Last modified: 20 Apr 2015, 10:26:09 UTC

Hi, thanks swiftmallard for the speedy reply. I had spotted that error but do not understand what it means. I have been able to run tasks intermittently as recently as 14+15th April, so some wu's do seem to be fine on my pc. This is a recent problem, I have not had this occur before. Here is the link to my boincstats page showing that I have been able to run WU's through April and March using the same cards as I have mentioned earlier. Unfortunately I am unable to find out which applications have been running successfully as I can only see the 17 failed WU's.

So if I untick ''use GPU'' so that milkyway only uses my APU, which has been working fine prior to the installation of the second card, should this then resolve the issues? Thanks for the help.


Your problem is that your 5870 IS a dual precision card, but your 6670 gpu IS NOT dual precision. You need to use the 'exclude_gpu' flag in a 'cc_config.xml' file and use it at a different Boinc Project, then your 5870 can continue to crunch here just fine.
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Message 63819 - Posted: 21 Jul 2015, 6:03:10 UTC

Is there an Update on what driver to use for the 6950 GPUs?

If you uninstall the AMD drivers, use the AMD cleanup utility, which completely removes the driver and openCL stuff. If you have run 14.x for example, and just uninstall it, the openCL stuff will stay on your system and the lower driver version (13.1 for example) still uses it, so causing your computation errors.
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Message 63821 - Posted: 21 Jul 2015, 17:08:09 UTC - in response to Message 63819.  

It would be nice to have some feedback from the staff about this!

I'm not aware of any updates but I've not been following MW recently.

Their is a post in this thread on how to get at least some later drivers to work (later than 13.1).
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Message 64224 - Posted: 4 Jan 2016, 19:21:49 UTC

Hey Milky Way staff, long overdue for (at least) a reply on this issue!
Please! ;)
Team AnandTech - SETI@H, Muon1 DPAD, F@H, MW@H, A@H, LHC@H, POGS, R@H, Einstein@H, DHEP.

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Message 64397 - Posted: 21 Mar 2016, 13:47:52 UTC

As you have mentioned above,it seems that HD6900 series don't support double precision computing. However, I don't really understand it. When HD6970 was released, AMD said that this card was designed to increase the ability of precisiom computing!
That's weired. Can milkyway@home's staff solve this problem?
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Message 64402 - Posted: 22 Mar 2016, 18:57:45 UTC - in response to Message 64397.  
Last modified: 22 Mar 2016, 18:58:49 UTC

A? I never said that, HD 6900s do support double precision! ;)
Just that MW haven't sorted out MWv1.02 with drivers latter than Cat 13.1!
Team AnandTech - SETI@H, Muon1 DPAD, F@H, MW@H, A@H, LHC@H, POGS, R@H, Einstein@H, DHEP.

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Message 64403 - Posted: 23 Mar 2016, 8:31:57 UTC - in response to Message 64402.  

That's to say, if I want to run MWv1.02 WUs on my hd6970,I have to use Cat13.1 or older Cat driver?
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Message 64405 - Posted: 23 Mar 2016, 17:53:40 UTC - in response to Message 64403.  

Yes, although their is a 3rd option which someone had success with in this thread, mod later drivers. Afraid you'll have to read the whole thread as I can't remember who did it now.
Team AnandTech - SETI@H, Muon1 DPAD, F@H, MW@H, A@H, LHC@H, POGS, R@H, Einstein@H, DHEP.

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Message 64409 - Posted: 24 Mar 2016, 9:03:52 UTC - in response to Message 64405.  
Last modified: 24 Mar 2016, 9:21:09 UTC

All right,because the 13.1 Cat driver is so hard to find, I bought a HD6850 from a second-hand store. I hope it will work.(`・ω・´)
By the way, thanks for your reply. ;)
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Message 64410 - Posted: 24 Mar 2016, 9:20:33 UTC

2016/3/24 17:12:04 | Milkyway@Home | An ATI GPU supporting double precision math is required
2016/3/24 17:12:04 | Milkyway@Home | GPU lacks necessary double precision extension
Well......Maybe it's time to buy a new card....So unlucky today...
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Message 64412 - Posted: 24 Mar 2016, 10:37:03 UTC - in response to Message 64409.  

All right,because the 13.1 Cat driver is so hard to find, I bought a HD6850 from a second-hand store. I hope it will work.(`・ω・´)
By the way, thanks for your reply. ;)


You can get older drivers here, at the bottom of the page:
http://www.hal6000.com/seti/boinc_ati_gpu_cheat_sheet.htm
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Message 64413 - Posted: 24 Mar 2016, 11:20:01 UTC - in response to Message 64412.  

Cool! That's it! Thankyou so much!
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Message 64416 - Posted: 24 Mar 2016, 17:54:10 UTC

6800s don't have double precision, wiki would of told ya that ;).
.
And careful with new cards, some have very weak DP, even high-ish end cards.
.
Could you afford a HD 7870 XT? Or a HD 7950?
They're fast at MW :)
Team AnandTech - SETI@H, Muon1 DPAD, F@H, MW@H, A@H, LHC@H, POGS, R@H, Einstein@H, DHEP.

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