New 295.95 driver on linux x64

Message boards : Graphics cards (GPUs) : New 295.95 driver on linux x64 - VERY slow

Author	Message
CTAPbIi Send message Joined: 29 Aug 09 Posts: 175 Credit: 259,509,919 RAC: 0 Level Scientific publications	Message 25736 - Posted: 17 Jun 2012 \| 11:13:20 UTC
	new cuda4.2 app coming and 2 days ago I installed 259.95 on both my rigs running ubuntu 10.04 x64. Now it takes 3-4 times longer to crunch cuda 4.1 WU. Also GPU temp in way lower against it used to be, so looks GPU utilization dropped drastically. Am I doing smth wrong? Or if there's any workaround this? Thx ____________
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ExtraTerrestrial Apes Volunteer moderator Volunteer tester Send message Joined: 17 Aug 08 Posts: 2705 Credit: 1,311,122,549 RAC: 0 Level Scientific publications	Message 25738 - Posted: 17 Jun 2012 \| 11:49:57 UTC - in response to Message 25736.
	Isn't 259.59 already a few years old? MrS ____________ Scanning for our furry friends since Jan 2002
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CTAPbIi Send message Joined: 29 Aug 09 Posts: 175 Credit: 259,509,919 RAC: 0 Level Scientific publications	Message 25739 - Posted: 17 Jun 2012 \| 12:21:29 UTC
	OMG... I meant - 295.59 I wish I could change topic name ____________
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skgiven Volunteer moderator Volunteer tester Send message Joined: 23 Apr 09 Posts: 3968 Credit: 1,995,359,260 RAC: 0 Level Scientific publications	Message 25740 - Posted: 17 Jun 2012 \| 12:37:05 UTC - in response to Message 25739.
	NVidia X-Server, Prefer maximum performance. ____________ FAQ's HOW TO: - Opt out of Beta Tests - Ask for Help
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CTAPbIi Send message Joined: 29 Aug 09 Posts: 175 Credit: 259,509,919 RAC: 0 Level Scientific publications	Message 25744 - Posted: 17 Jun 2012 \| 14:06:27 UTC Last modified: 17 Jun 2012 \| 14:09:07 UTC
	it's already there. I checked that setting is on just after I installed the driver. It's under GPU->PowerMizer section though. ____________
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ExtraTerrestrial Apes Volunteer moderator Volunteer tester Send message Joined: 17 Aug 08 Posts: 2705 Credit: 1,311,122,549 RAC: 0 Level Scientific publications	Message 25746 - Posted: 17 Jun 2012 \| 14:19:14 UTC
	Did you set SWAN_SYNC=0 previously? I heard it's not supported in the current release. MrS ____________ Scanning for our furry friends since Jan 2002
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CTAPbIi Send message Joined: 29 Aug 09 Posts: 175 Credit: 259,509,919 RAC: 0 Level Scientific publications	Message 25747 - Posted: 17 Jun 2012 \| 14:35:47 UTC - in response to Message 25746. Last modified: 17 Jun 2012 \| 14:39:04 UTC
	Nope. I was under impression that linux rigs do not need that. Am I wrong? Check how ugly it looks like after I've got 295.59: http://www.gpugrid.net/results.php?hostid=103764 http://www.gpugrid.net/results.php?hostid=103761 3 and even 4 times slower then on older 275.21. I'm not happy... ____________
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skgiven Volunteer moderator Volunteer tester Send message Joined: 23 Apr 09 Posts: 3968 Credit: 1,995,359,260 RAC: 0 Level Scientific publications	Message 25748 - Posted: 17 Jun 2012 \| 15:07:24 UTC - in response to Message 25747. Last modified: 17 Jun 2012 \| 15:29:37 UTC
	Now it takes 3-4 times longer to crunch cuda 4.1 WU. Just checked what you were crunching and you have only been crunching CUDA 3.1 tasks! Typo? It's 3.1 or 4.2. Check your clocks, temps and GPU fan speed. I'm seeing no issues with 295.40. Might be some downclocking bug in 295.95, but I won't be testing it. ____________ FAQ's HOW TO: - Opt out of Beta Tests - Ask for Help
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CTAPbIi Send message Joined: 29 Aug 09 Posts: 175 Credit: 259,509,919 RAC: 0 Level Scientific publications	Message 25758 - Posted: 18 Jun 2012 \| 3:10:31 UTC - in response to Message 25748.
	Sorry, that's typo. Till now I'm getting cuda31 WUs only. Clocks are OK (actually, I modified ROM and flash it with higher clocks/GPU voltage), also I'm controlling fan manually (using simple script and coolbits 4). Temps though are terribly low, what in my minds means close to zero GPU utilization in 295.59 drivers. Or I'm doing smth terribly wrong... ____________
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skgiven Volunteer moderator Volunteer tester Send message Joined: 23 Apr 09 Posts: 3968 Credit: 1,995,359,260 RAC: 0 Level Scientific publications	Message 25759 - Posted: 18 Jun 2012 \| 9:21:38 UTC - in response to Message 25758.
	I would put it down to the driver, or an incompatibility between the driver package and the operating system. Uninstall it and try 295.40. ____________ FAQ's HOW TO: - Opt out of Beta Tests - Ask for Help
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CTAPbIi Send message Joined: 29 Aug 09 Posts: 175 Credit: 259,509,919 RAC: 0 Level Scientific publications	Message 25769 - Posted: 19 Jun 2012 \| 3:15:02 UTC - in response to Message 25759.
	Uninstall it and try 295.40. According to this topic: Linux: 295.41 or greater We're in the same boat :-) I tryi=ed all drivers greater 295.41: 295.49, 295.53, 295.59 and even 302.07 - none of them warmed my cards over 50 C. I installed back 275.21 - here we go - 67 C instantaneously. Even crunching time - 41h30m for 57% looks really way too much. Looks 29* drivers not really working for me. I would put it down to the driver, or an incompatibility between the driver package and the operating system. The only reason I can is is that I'm using Ubuntu 10.04 LTS with older 2.6 kernels and these drivers requires 3.0 kernels. But that should not be true: 1. Nothing like "for 3.0 kernels only" on nvidia site 2. I'm old school guy following "the 1st rule of good mechanic": do not fix what isn't broken. And I'm not alone. So, in my mind kernel's version should not be an issue and the only possible reason is that smth wrong with driver itself - in terms of GPGPU. ____________
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ExtraTerrestrial Apes Volunteer moderator Volunteer tester Send message Joined: 17 Aug 08 Posts: 2705 Credit: 1,311,122,549 RAC: 0 Level Scientific publications	Message 25776 - Posted: 19 Jun 2012 \| 17:46:26 UTC - in response to Message 25769.
	Since it obviously works with 275.21 (for now), version 295.41 can't be stricly required. However, I have no idea what else could go wrong. Actually, as far as I'm concerned only one thing is sure under Linux: no matter what you do, there's always another unexpected issue popping up... 2. I'm old school guy following "the 1st rule of good mechanic": do not fix what isn't broken. And I'm not alone. And probably said with the same breath: "... but don't forget your security updates!" MrS ____________ Scanning for our furry friends since Jan 2002
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CTAPbIi Send message Joined: 29 Aug 09 Posts: 175 Credit: 259,509,919 RAC: 0 Level Scientific publications	Message 25781 - Posted: 19 Jun 2012 \| 22:33:46 UTC - in response to Message 25776.
	Since it obviously works with 275.21 (for now), version 295.41 can't be stricly required. That's cool, really :-) I think I'm not the only one who is (and other people - will) struggling with 295 drivers. Let's keep it nice and simple :-) BTW, what's the benefits using cuda4.2 over cuda3.1? Just curiosity. However, I have no idea what else could go wrong. Actually, as far as I'm concerned only one thing is sure under Linux: no matter what you do, there's always another unexpected issue popping up... While you know what u r doing there's NP with Linux as operation system. It runs solid rock stable and damn fast - exactly what we need for crunching. However, third party software can easily mess up everything. In this particular case smth definitely wrong with nvidia drivers. And you know what? it's not the very 1st time I've got problems with nvidia drivers on Linux. Over a year ago I was crunching for PrimeGrid. NP on Wondows: 99% utilization and fast crunching time. On Linux though it took way more time to crunch the same WU. The reason for that was that Linux driver could not handle the same amount of threads as Winders driver did. Thus my cards were idling a lot, GPU utilization was barely 50%. It's obvious problem on nvidia side, there were couple of topics on nvidia web site about that, I also send a bug report. But guess what - nothing happened: no reply on my bug report as well as that bug still was there months after. That's kinda suxxx... 2. I'm old school guy following "the 1st rule of good mechanic": do not fix what isn't broken. And I'm not alone. And probably said with the same breath: "... but don't forget your security updates!" MrS That's exactly true ;-) ____________
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skgiven Volunteer moderator Volunteer tester Send message Joined: 23 Apr 09 Posts: 3968 Credit: 1,995,359,260 RAC: 0 Level Scientific publications	Message 25782 - Posted: 19 Jun 2012 \| 23:20:34 UTC - in response to Message 25781.
	"BTW, what's the benefits using cuda4.2 over cuda3.1? Just curiosity". It's significantly faster for most Fermi cards. It allows Kepler cards to be used at GPUGrid. ____________ FAQ's HOW TO: - Opt out of Beta Tests - Ask for Help
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CTAPbIi Send message Joined: 29 Aug 09 Posts: 175 Credit: 259,509,919 RAC: 0 Level Scientific publications	Message 25783 - Posted: 20 Jun 2012 \| 1:41:30 UTC - in response to Message 25782.
	It's significantly faster for most Fermi cards. I did not know that. Thanks :-) Looks it worth to test all coming drivers to see if it really faster than 275.21. I'll continue to post results here. Let's keep fingers crossed that one day nvidia will manage to fix the problem. ____________
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ExtraTerrestrial Apes Volunteer moderator Volunteer tester Send message Joined: 17 Aug 08 Posts: 2705 Credit: 1,311,122,549 RAC: 0 Level Scientific publications	Message 25797 - Posted: 20 Jun 2012 \| 18:19:05 UTC
	Yeah, I didn't even manage to install the nVidia drivers under Cent OS :/ That's partly why Linus himself recently felt an urgue to express his feelings about nVidias support for Linux. But back to topic.. I whish you all the best for your experiments! MrS ____________ Scanning for our furry friends since Jan 2002
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CTAPbIi Send message Joined: 29 Aug 09 Posts: 175 Credit: 259,509,919 RAC: 0 Level Scientific publications	Message 25833 - Posted: 22 Jun 2012 \| 21:29:26 UTC - in response to Message 25797.
	Thanks bro :-) ____________
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Rabinovitch Send message Joined: 25 Aug 08 Posts: 143 Credit: 64,937,578 RAC: 0 Level Scientific publications	Message 25843 - Posted: 24 Jun 2012 \| 1:39:19 UTC - in response to Message 25736.
	Am I doing smth wrong? Or if there's any workaround this? Thx All such a suxx just led me back to Windows. This OS is far enough from the perfectness, but PC under Windows usually is just working. As it should work. Without such a sad juggles. ____________ From Siberia with love!
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CTAPbIi Send message Joined: 29 Aug 09 Posts: 175 Credit: 259,509,919 RAC: 0 Level Scientific publications	Message 25847 - Posted: 25 Jun 2012 \| 3:49:46 UTC - in response to Message 25843.
	Ниасилил? :) The problem is third party software solely. Being absolutely happy with Linux, I'm gaining tens of % in performance. Not bad at all ;-) ____________
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Message boards : Graphics cards (GPUs) : New 295.95 driver on linux x64 - VERY slow

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