Merry Christmas & I wish Santa would bring me some Astropulse work for Christmas

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Profile Fred E.
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Message 1457726 - Posted: 26 Dec 2013, 18:22:28 UTC

So, I'm going with plan "B" ... new card next chance. :)

Guy, have you asked the card manufacturer about it? They may be aware of it and may have a fix.
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Message 1457752 - Posted: 26 Dec 2013, 21:07:28 UTC - in response to Message 1457671.  

Just an info. On the 660/670, 2WU is better than 3, i belive in the 650Ti must be the same. Of course YMMV.

My 660's get a 25% increase in output running 3 tasks over just running 2 so yes YMMV.

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Message 1457756 - Posted: 26 Dec 2013, 21:41:30 UTC - in response to Message 1457752.  


My 660's get a 25% increase in output running 3 tasks over just running 2 so yes YMMV.

If one works to get the most from hardware it quickly becomes apparent all chips are not created equal. Wile they all can run fine up to factory settings, after that the potential differences could be as much as 20% (personal observation).

One finds that in all mass produced hardware. In the automotive competitive community they will "blueprint" an engine; that is taking it apart and putting it back together with parts that are machined to the minimum tolerances, for maximum output and still be a legal "factory" engine. Of course we can't "blueprint" silicon.
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Message 1457757 - Posted: 26 Dec 2013, 21:54:47 UTC - in response to Message 1457756.  
Last modified: 26 Dec 2013, 21:55:29 UTC

I agree not 2 chips are equal, and even 2 twins cards works diferent. Each system is unique thats why i say YMMV. You could only be sure after an extensive tests. I understand with MB 3 WU are posible and maybe faster on the smaller cards but it´s hard to imagine 3 AP running faster than 2 on a 650. I run 3 AP at a time on the 770/780 only. Thats why i recomend him to run WU in the initial fase then test if 3 could be better. Remembering, is not about RAM it´s about GPU usage, PCI-E limitation, real WU/hour production, etc.
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Message 1457763 - Posted: 26 Dec 2013, 22:31:12 UTC

Memory bandwidth is another thing to consider as well as 650/650Ti's have 33.3% less than 650Ti BOOST's and all 660's.

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Message 1458019 - Posted: 27 Dec 2013, 20:49:13 UTC - in response to Message 1457541.  
Last modified: 27 Dec 2013, 20:55:57 UTC

my guess it is a bonic issue, nothing wrong with the drivers. but don't worry as there are no opencl apps for nvidia cards i believe.

And how do you think that AP's are done on those cards?

Cheers.


I was thinking cuda, guess not...

so why can't i get any work for intel 4600 graphics on a 4770k chip?
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Message 1458023 - Posted: 27 Dec 2013, 21:15:16 UTC - in response to Message 1458019.  
Last modified: 27 Dec 2013, 21:16:43 UTC

my guess it is a bonic issue, nothing wrong with the drivers. but don't worry as there are no opencl apps for nvidia cards i believe.

And how do you think that AP's are done on those cards?

Cheers.


I was thinking cuda, guess not...

so why can't i get any work for intel 4600 graphics on a 4770k chip?

There isn't a Stock Intel AP app here yet, you need to eithier run the Stock Intel AP app at Seti Beta,
Or do an app_info with the Intel AP app from the Beta test thread.

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Message 1458108 - Posted: 28 Dec 2013, 4:38:20 UTC - in response to Message 1457922.  

Well I'll be darned...

That was an expensive lesson.

I swapped out my GTX650ti for a GTX770 and *STILL* did not get OpenCL on it.

The thing that made me so sure it must have been the card was that I have another XP SP3 box running OpenCL just fine on a GTX760.

Well, without planned obsolecence, some of these software companies would go out of business, I guess.
You should have swapped the cards; testing 101. Now you have another card to crunch with if you have two PCIe slot in one of your computers.

It is odd that XP stopped supporting OpenCL; one would have thought there would be weeping and gnashing of teeth from users who's programs no longer worked.

Planned obsolescence; April 8, 2014 for XP.
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Message 1458232 - Posted: 28 Dec 2013, 16:51:17 UTC

XP is a nice OS. And I can see your reluctance to get rid of it. ran it on a P4 for ten years. But I have two machines running Win 7 and I like it. Yes there is a little learning curve with it. Its seems to be just as stable as XP is. But then Ive only run them for a year on one and just over 6 months on another.

I think you would like Win 7.
[/quote]

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Message 1458240 - Posted: 28 Dec 2013, 17:14:07 UTC - in response to Message 1458108.  

It is odd that XP stopped supporting OpenCL; one would have thought there would be weeping and gnashing of teeth from users who's programs no longer worked.

Planned obsolescence; April 8, 2014 for XP.


It isn't that XP has stopped supporting OpenCL. OpenCL is nothing more than an API provided by the graphics card and graphics driver. Thus, it is the graphics driver that has stopped supporting OpenCL under XP as many manufacturers do not wish to continue driver and app development under an OS that is going to be no longer supported in a matter of months.
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Message 1458304 - Posted: 28 Dec 2013, 22:39:45 UTC - in response to Message 1458240.  

[quote] Thus, it is the graphics driver that has stopped supporting OpenCL under XP as many manufacturers do not wish to continue driver and app development under an OS that is going to be no longer supported in a matter of months.

If that is so NVIDIA should not offer Win XP drivers for the new 700 series cards.
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Message 1458314 - Posted: 28 Dec 2013, 22:57:49 UTC - in response to Message 1458304.  

What does GPU-Z say about your XP cards?
There is another App that reports more info than GPU-Z, GPU Caps Viewer 1.18.1.
What does it say about OpenCL on that host?
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Message 1458317 - Posted: 28 Dec 2013, 23:16:37 UTC - in response to Message 1458304.  
Last modified: 28 Dec 2013, 23:17:39 UTC

Thus, it is the graphics driver that has stopped supporting OpenCL under XP as many manufacturers do not wish to continue driver and app development under an OS that is going to be no longer supported in a matter of months.

If that is so NVIDIA should not offer Win XP drivers for the new 700 series cards.


Why? They can support a driver but refuse to support the OpenCL API on an outdated OS. There's nothing that states that have to do both. [Edit] AMD/ATi has done the same thing in their latest XP drivers, so this isn't exclusive to nVidia.
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Message 1458333 - Posted: 29 Dec 2013, 0:29:35 UTC
Last modified: 29 Dec 2013, 0:36:34 UTC

Well, I looked around nVidia and didn't see a thing about dropping OpenCL support for XP. There's nothing in the releases notes either, PDF: Version 331.82
The only difference in OpenCL downloads is 32 or 64 bit, OpenCL
I did see some threads about GPU-Z not showing OpenCL correctly.
I have personally installed 331.82 on my 1 year old XP and OpenCL worked fine on my GTS250. Don't know... Maybe you should ask nVidia, https://forums.geforce.com/
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Message 1458335 - Posted: 29 Dec 2013, 0:51:40 UTC - in response to Message 1458332.  
Last modified: 29 Dec 2013, 0:55:50 UTC

What does GPU-Z say about your XP cards?
There is another App that reports more info than GPU-Z, GPU Caps Viewer 1.18.1.
What does it say about OpenCL on that host?


On this box:

Intel Core2 Duo/XP SP3/Nvidia GTX760/331.82/XP loaded more than 3 years ago ---- OpenCL Works
The OpenCL tab is populated with information such as "Number of CL devices: 1" "1: GeForce GTX 760" "Type GPU" "Compute units 6" Clock speed, "OpenCL 1.1 CUDA" "Driver 331.82" Cache, mem, buffers, image sizes, extensions, etc.

On this box:

Intel Core2 Duo/XP SP3/Nvidia GTX770/331.82/XP loaded less than 3 years ago ---- OpenCL does NOT work
All fields under the OpenCL tab are blank and greyed out.


More than likely on the older XP box the OpenCL SDK was previously loaded with a supported driver for XP and carried over through driver updates.

[Edit] According to this link, nVidia includes the OpenCL SDK in all current drivers, but they don't seem to come with any of the latest XP drivers.
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Message 1458356 - Posted: 29 Dec 2013, 1:48:15 UTC

I was thinking that maybe Guy could suspend crunching on that rig, completely remove the driver, install that 9400GT he has into it and install an old 280.xx driver. Then replace the 9400GT with the new card and then update the driver to suit and see if that does the trick.

It's something to try anyway.

Cheers.
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Message boards : Number crunching : Merry Christmas & I wish Santa would bring me some Astropulse work for Christmas


 
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