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Message boards : Problems and Help : computation error

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Profile Thomas Hoganas
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Message 36600 - Posted: 1 Jun 2011 | 18:24:24 UTC

i get computation error on all my proth prime search (sieve) 1.38(Ati 13ati) have tryed over 340 times What's wrong??
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Message 36603 - Posted: 1 Jun 2011 | 18:31:55 UTC - in response to Message 36600.
Last modified: 1 Jun 2011 | 18:38:22 UTC

i get computation error on all my proth prime search (sieve) 1.38(Ati 13ati) have tryed over 340 times What's wrong??

[Tongue firmly in cheek]
You are using an ATI GPU!

Seriously, you probably have the wrong drivers -- see several threads/messages about what you need for ATI:
http://www.primegrid.com/forum_thread.php?id=3372&nowrap=true#36326
____________
Murphy (AtP)



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Message 36616 - Posted: 1 Jun 2011 | 22:30:54 UTC - in response to Message 36600.

Your GPU is: CAL ATI Radeon HD 2600 (RV630) (512MB) driver: 1.4.344

The driver is way way out of date, and the GPU cannot be used on that application.

Sorry its not going to run.

Regards
Zy

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Message 36626 - Posted: 2 Jun 2011 | 6:39:10 UTC

Here's a different "computation error" (different host/user): host: 204787 with over 13,000 tasks in the DB, not one of them valid. It is a Linux box and it looks like it's got owner/group/mode permission problems.

--Gary

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Message 36630 - Posted: 2 Jun 2011 | 8:56:01 UTC - in response to Message 36626.

The server should have choked that one as a runaway - clearly it hasnt so a check on the server choke to restrict future downloads on an increasing incremental basis dependent on return of increasing numbers of successful WUs would stop that one.

Regards
Zy

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Message 37166 - Posted: 19 Jun 2011 | 13:54:24 UTC - in response to Message 36616.

Your GPU is: CAL ATI Radeon HD 2600 (RV630) (512MB) driver: 1.4.344

The driver is way way out of date, and the GPU cannot be used on that application.

Sorry its not going to run.

Regards
Zy



Hmmm... now it looks as if I have the opposite problem. I upgraded to Catalyst 11.6 and primegrid will not run on the ati machine anymore.

CAL ATI Radeon HD 4700/4800 (RV740/RV770) (1024MB) driver: 1.4.1417

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Message 37168 - Posted: 19 Jun 2011 | 14:31:57 UTC - in response to Message 37166.

Hmmm... now it looks as if I have the opposite problem. I upgraded to Catalyst 11.6 and primegrid will not run on the ati machine anymore.

CAL ATI Radeon HD 4700/4800 (RV740/RV770) (1024MB) driver: 1.4.1417

I think the problem is the Catalyst 11.6. Maybe it runs with the older 11.5.
____________
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Message 37170 - Posted: 19 Jun 2011 | 15:14:46 UTC - in response to Message 37168.

Hmmm... now it looks as if I have the opposite problem. I upgraded to Catalyst 11.6 and primegrid will not run on the ati machine anymore.

CAL ATI Radeon HD 4700/4800 (RV740/RV770) (1024MB) driver: 1.4.1417

I think the problem is the Catalyst 11.6. Maybe it runs with the older 11.5.



Yes, that's what I said, well at least implied. But I'll just wait till PG catches up rather than revert to the older version and run milkway or collatz until then as I'm only running PG on that machine as a backup to those projects when they run out of work or are down.

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Message 37172 - Posted: 19 Jun 2011 | 16:16:35 UTC - in response to Message 37170.

Why should PG change something. Ken, a volunteer developer, converted his Cuda-app to OpenCL...
We all know, OpenCL is not the best but even better than nothing. Any help in coding a native CAL-app is much appreciated.
____________
Best wishes. Knowledge is power. by jjwhalen

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Message 37181 - Posted: 19 Jun 2011 | 17:58:04 UTC - in response to Message 37172.

Why should PG change something. Ken, a volunteer developer, converted his Cuda-app to OpenCL...
We all know, OpenCL is not the best but even better than nothing. Any help in coding a native CAL-app is much appreciated.



How would I know that? well, then I will not be running PG on my ati box any longer.

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Message 37184 - Posted: 19 Jun 2011 | 18:47:18 UTC - in response to Message 37181.

How would I know that? well, then I will not be running PG on my ati box any longer.

According to the PPS-sieve preferences, this is all what you need to know:
Proth Prime Search (Sieve)
Supported platforms:
Windows: 32bit, 64bit (+CUDA23, AMD OpenCL1)
Linux: 32bit, 64bit (+CUDA23, AMD OpenCL1)
Mac: 32bit, 64bit (+CUDA32)
1 Requires AMD Accelerated Parallel Processing (APP) drivers. If APP driver not available for your card, then the ATI Stream SDK is needed.

Recent average CPU time: 3:60:30

____________
Best wishes. Knowledge is power. by jjwhalen

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Message 37187 - Posted: 19 Jun 2011 | 20:21:36 UTC - in response to Message 37184.

How would I know that? well, then I will not be running PG on my ati box any longer.

According to the PPS-sieve preferences, this is all what you need to know:
Proth Prime Search (Sieve)
Supported platforms:
Windows: 32bit, 64bit (+CUDA23, AMD OpenCL1)
Linux: 32bit, 64bit (+CUDA23, AMD OpenCL1)
Mac: 32bit, 64bit (+CUDA32)
1 Requires AMD Accelerated Parallel Processing (APP) drivers. If APP driver not available for your card, then the ATI Stream SDK is needed.

Recent average CPU time: 3:60:30



The link you provided to the App Drivers will take a person to the current Catalyst version 11.6, and is the reason that PG cannot be run on an ATI any longer. I'm not going to downgrade the software just to be able to run PG because then I would not be able to run other projects that do require the latest drivers.

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Message 37189 - Posted: 19 Jun 2011 | 22:54:20 UTC - in response to Message 37187.
Last modified: 19 Jun 2011 | 23:12:57 UTC

... The link you provided to the App Drivers will take a person to the current Catalyst version 11.6, and is the reason that PG cannot be run on an ATI any longer. ...


Not correct.

I thought the statement strange as there is no reason why 11.6 should not run against PG PPS Sieve AMD app, so I suspended a Moo! app and started four PG Sieve AMD WUs. Four of them have been running for 12 mins so far with 11.6 loaded, 41% done - a bit slower than usual as I have kept The Moo! settings just to run the short test.

There must be other things going on inside your installation, because its not the driver, 11.6 works fine with PG PPS Sieve AMD WUs. I wil post when the four have completed, probably another 15 mins or so.

Edit: All four completed in the time anticipated for the PC, in fact if anything it was around 15 or 20 seconds quicker than usual. 11.6 driver is working fine with the AMD WUs. PC ID is 176262 (AMD 1090T with twin 5970s) PC details are open.

Regards
Zy

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Message 37191 - Posted: 19 Jun 2011 | 23:35:13 UTC - in response to Message 37189.

... The link you provided to the App Drivers will take a person to the current Catalyst version 11.6, and is the reason that PG cannot be run on an ATI any longer. ...


Not correct.

I thought the statement strange as there is no reason why 11.6 should not run against PG PPS Sieve AMD app, so I suspended a Moo! app and started four PG Sieve AMD WUs. Four of them have been running for 12 mins so far with 11.6 loaded, 41% done - a bit slower than usual as I have kept The Moo! settings just to run the short test.

There must be other things going on inside your installation, because its not the driver, 11.6 works fine with PG PPS Sieve AMD WUs. I wil post when the four have completed, probably another 15 mins or so.

Edit: All four completed in the time anticipated for the PC, in fact if anything it was around 15 or 20 seconds quicker than usual. 11.6 driver is working fine with the AMD WUs. PC ID is 176262 (AMD 1090T with twin 5970s) PC details are open.

Regards
Zy


While you're running 5970s, I'm running a 4850, which could be the difference. pg is the only app that will not run for me with 11.6, which I uninstalled/reinstalled just to see if that fixed things, but it didn't.

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Message 37193 - Posted: 19 Jun 2011 | 23:51:17 UTC - in response to Message 37191.

.... pg is the only app that will not run for me with 11.6, which I uninstalled/reinstalled just to see if that fixed things, but it didn't.


Which Projects have you run WUs with 11.6? Knowing that we might be able to nail whats happening here.

You had issues at MW with the previous driver, and I see one MW WU awaiting a validation recheck WU after the driver change to 11.6 yesterday.

Which were the successful Projects with 11.6? We could then look at similarities or otherwise, but I can only see you having run MW GPUs - and the issues you had there with 11.6 - apart from the PG problems you've had after changing the driver to 11.6.

Regards
Zy

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Message 37194 - Posted: 20 Jun 2011 | 1:01:07 UTC - in response to Message 37193.



Which Projects have you run WUs with 11.6? Knowing that we might be able to nail whats happening here.

You had issues at MW with the previous driver, and I see one MW WU awaiting a validation recheck WU after the driver change to 11.6 yesterday.

Which were the successful Projects with 11.6? We could then look at similarities or otherwise, but I can only see you having run MW GPUs - and the issues you had there with 11.6 - apart from the PG problems you've had after changing the driver to 11.6.

Regards
Zy[/quote]


I just uninstalled 11.6 again, but reinstalled 11.5. A pg wu ran successfully for several minutes. Then I uninstalled 11.5, reinstalled 11.6 and the pg's started failing immediately.

MW has been running fine, and I just ran a collatz mini successfully. a regular collatz is running now.

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Message 37196 - Posted: 20 Jun 2011 | 9:18:00 UTC - in response to Message 37194.
Last modified: 20 Jun 2011 | 9:46:30 UTC

I saw your first Collatz download for two weeks last night, and the fact that that went ok, and the ongoing MW appears to be going ok from what you said, starts to point in a direction.

Both Collatz and MW are CAL apps, PG is OpenCL.

The AMD side of PG is OpenCL. Something is wrong with your 11.6 Driver installation. It would appear v11.5 is working ok here, but 11.6 does not when run against the OpenCL app.

When you loaded the driver for 11.6, did you select the option at the top of the AMD download page (the CC option with all drivers,CC and APP included)?

Anyone reading this with OpenCL knowledge, would be helpful if you could chip in with a check list to see what hasnt been loaded or may have got corrupted.

EDIT: Another check you can do, when running the 11.6 at PG - does GPU-Z show a tick mark in the OpenCL Box bottom left of the opening screen for GPU-Z?

Regards
Zy

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Message 37198 - Posted: 20 Jun 2011 | 10:26:07 UTC

I am pretty sure now its the driver - from AMD OpenCL 2.4 onwards, compatibility with 4XXX is not guaranteed. If as I suspect, OpenCL 2.4 is loaded with 11.6 driver set, there is a distinct possibility that 4XXX will have problems. It looks as though a previous OpenCL version loaded may well get you going.

However the latter is a little out of my depth, and we need an AMD OpenCL individual to verify this, and/or the fix.

Regards
Zy

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Message 37199 - Posted: 20 Jun 2011 | 11:04:44 UTC - in response to Message 37196.

yes, I downloaded the full suite and openCL has a tick mark in gpu-z

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Message 37202 - Posted: 20 Jun 2011 | 12:40:36 UTC - in response to Message 37199.
Last modified: 20 Jun 2011 | 12:43:09 UTC

yes, I downloaded the full suite and openCL has a tick mark in gpu-z


Excellent, looking more and more like it is the support level of V2.4 not fully supporting, thats already in the works from AMD, what I am not sure of is the version loaded with 11.6.

Need someone who knows the inside of OpenCL to look at it and confirm or otherwise. If as I suspect thats the base cause, it may well be worked around by loading a previous OpenCL version, how much effect that would have on other projects remains to be seen.

Either way which way, with the already declared low support level of 4XXX in AMD OpenCL 2.4, the writing is on the wall, and this will not be the last issue surfacing re 4XXX and OpenCL - in any BOINC AMD OpenCL Project, not just PG.

Regards
Zy

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321 LLR Silver: Earned 100,000 credits (101,692)Cullen LLR Silver: Earned 100,000 credits (104,876)ESP LLR Silver: Earned 100,000 credits (101,979)PPS LLR Silver: Earned 100,000 credits (148,018)PSP LLR Silver: Earned 100,000 credits (140,441)SoB LLR Silver: Earned 100,000 credits (119,475)SR5 LLR Silver: Earned 100,000 credits (120,939)SGS LLR Silver: Earned 100,000 credits (122,783)TRP LLR Silver: Earned 100,000 credits (100,115)Woodall LLR Silver: Earned 100,000 credits (107,459)321 Sieve Silver: Earned 100,000 credits (202,757)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (6,908,135)PPS Sieve Sapphire: Earned 20,000,000 credits (25,450,104)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (130,966)TRP Sieve (suspended) Silver: Earned 100,000 credits (201,525)AP 26/27 Silver: Earned 100,000 credits (100,015)GFN Silver: Earned 100,000 credits (246,369)PSA Silver: Earned 100,000 credits (226,594)
Message 37219 - Posted: 20 Jun 2011 | 17:20:29 UTC - in response to Message 37202.
Last modified: 20 Jun 2011 | 17:21:18 UTC

Either way which way, with the already declared low support level of 4XXX in AMD OpenCL 2.4, the writing is on the wall, and this will not be the last issue surfacing re 4XXX and OpenCL - in any BOINC AMD OpenCL Project, not just PG.

Do you know other boinc-projects with OpenCL-apps?

Another point of view was posted by crunch3r. Not every OpenCL-app is usable on both producers of OpenCL hardware. To get the best effort, you have to code different paths for AMD and nVidia.
I know Intel is the new player in the OpenCL arena and they had released only a beta-SDK. Maybe Intel can speedup some things...
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Best wishes. Knowledge is power. by jjwhalen

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Message 37231 - Posted: 20 Jun 2011 | 18:11:03 UTC - in response to Message 37219.
Last modified: 20 Jun 2011 | 18:14:07 UTC

... Do you know other boinc-projects with OpenCL-apps?

Not heard of any, if I come across one, I'll post it here

Another point of view was posted by crunch3r. Not every OpenCL-app is usable on both producers of OpenCL hardware. To get the best effort, you have to code different paths for AMD and nVidia....

Definitely, trying to run an NVidia OpenCL app on AMD OpenCL hardware or software (and visa versa) is another way to gain quick entry to the nuthouse rofl :)

The much wished for Niavana of one set of software serving all requirements of both Vendors is a long way off as yet - too much jostling to preserve vested short term interests.

As to the detail of the differences, I have no idea, I am just aware they exist enough to cause grief. Need the likes of crunch3r for that one - he's more OpenCL knowledge in his little finger nail than I have in my whole body :)

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Zy

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Found 2 primes in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,010,094)Cullen LLR Amethyst: Earned 1,000,000 credits (1,125,935)ESP LLR Amethyst: Earned 1,000,000 credits (1,193,202)Generalized Cullen/Woodall LLR Gold: Earned 500,000 credits (767,102)PPS LLR Jade: Earned 10,000,000 credits (17,457,636)PSP LLR Ruby: Earned 2,000,000 credits (4,060,731)SoB LLR Ruby: Earned 2,000,000 credits (3,860,053)SR5 LLR Amethyst: Earned 1,000,000 credits (1,709,799)SGS LLR Amethyst: Earned 1,000,000 credits (1,152,571)TPS LLR (retired) Bronze: Earned 10,000 credits (19,376)TRP LLR Ruby: Earned 2,000,000 credits (2,520,745)Woodall LLR Amethyst: Earned 1,000,000 credits (1,156,424)321 Sieve Ruby: Earned 2,000,000 credits (2,915,071)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (8,584,236)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,461,309)PPS Sieve Emerald: Earned 50,000,000 credits (83,501,701)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (352,129)TRP Sieve (suspended) Gold: Earned 500,000 credits (776,202)AP 26/27 Turquoise: Earned 5,000,000 credits (5,851,049)GFN Sapphire: Earned 20,000,000 credits (31,234,565)PSA Ruby: Earned 2,000,000 credits (4,154,617)
Message 37240 - Posted: 20 Jun 2011 | 19:04:08 UTC - in response to Message 37219.
Last modified: 20 Jun 2011 | 19:07:27 UTC

Do you know other boinc-projects with OpenCL-apps?

I know that Milkyway@Home has an OpenCL app - for nVIDIA, at least.

Edit: For a general overview of the hardware difference between AMD's old system and all other OpenCL-capable graphics cards, see this article.
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Message 37266 - Posted: 20 Jun 2011 | 22:56:58 UTC

This posts (at AMD developer level) relate to whats happening re CAL & OpenCL - as from OpenCL 2.5 inclusive, CAL is deprecated completely ..... that definitely hits 38XX


Implications of CAL Deprecation

I am still unsure about 4XXX and OpenCL in 11.6, it looks that way from what we are seeing with 4XXX users here, but ... need someone with AMD OpenCL knowledge to confirm or otherwise

Regards
Zy

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