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Author Topic: GPU is not important?  (Read 7173 times)

lgs777

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GPU is not important?
« on: July 22, 2014, 01:56:51 PM »
Only Cpu working in photoscan?  Align Photos ,  Build Mesh and texture ..
GPU is jobless??  My english is bad  :P

Marcel

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Re: GPU is not important?
« Reply #1 on: July 22, 2014, 02:34:40 PM »
Correct, the GPU is only used for the Dense Cloud reconstruction.

But it speeds up this part a whole lot, without a GPU the Dense Cloud reconstruction will take maybe 10x longer.

Wishgranter

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Re: GPU is not important?
« Reply #2 on: July 22, 2014, 06:51:38 PM »
50 times longer on small datasets ( 100 imgs ) comparing to say 7970 or 680
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Patribus

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Re: GPU is not important?
« Reply #3 on: July 22, 2014, 11:28:00 PM »
Hello, one issue I'm having for some time is that when I want to go to the GPU settings, PS crashes immediately.

Why is this?

lgs777

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Re: GPU is not important?
« Reply #4 on: July 23, 2014, 05:41:50 AM »
Correct, the GPU is only used for the Dense Cloud reconstruction.

But it speeds up this part a whole lot, without a GPU the Dense Cloud reconstruction will take maybe 10x longer.

50 times longer on small datasets ( 100 imgs ) comparing to say 7970 or 680

Hello, one issue I'm having for some time is that when I want to go to the GPU settings, PS crashes immediately.

Why is this?

Thx you for reply guys!

mobilexcopter

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Re: GPU is not important?
« Reply #5 on: July 23, 2014, 09:15:44 AM »
Hello, one issue I'm having for some time is that when I want to go to the GPU settings, PS crashes immediately.

Why is this?

Hello,

try to update your graphics card driver with a newer one.

Best regards,

Alex

snad

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Re: GPU is not important?
« Reply #6 on: July 23, 2014, 02:36:32 PM »
Hello, one issue I'm having for some time is that when I want to go to the GPU settings, PS crashes immediately.

Why is this?
Hello, another reason of PC-crashes is might be GPU overheating. Try GPU-Z and monitor the temperature

Patribus

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Re: GPU is not important?
« Reply #7 on: July 29, 2014, 05:19:32 PM »
I do have the newest driver version. nvidia 340.52 presently.

I'm using GEForce GTX 660.

Photoscan still crashes when I try to open the GPU rider in the 'preferences' window.

mobilexcopter

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Re: GPU is not important?
« Reply #8 on: July 29, 2014, 07:31:08 PM »
OK, two more questions

- do you use the latest version of PhotoScan ?
- you had the latest driver the hole time ?

Best regards,

Alex

Patribus

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Re: GPU is not important?
« Reply #9 on: July 29, 2014, 08:35:55 PM »
yes, I have the 1.0.4 version which I have been using since it's release.

The NVIDIA drivers are not always up-to-date in my case, since some of the upgrades fail, others not. But presently the drive is the newest one.  But to answer your question: no, I did not have the newest driver of NVIDIA all the time.

Cheers

mobilexcopter

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Re: GPU is not important?
« Reply #10 on: July 29, 2014, 10:00:27 PM »
Well, if you are not using win 8, I'm short of ideas.  ;)

The one thing that caused issues in another application was onboard ( CPU based ) graphics card. After disabling it in BIOS everything was ok.

Best regards,

Alex

Patribus

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Re: GPU is not important?
« Reply #11 on: July 29, 2014, 11:08:02 PM »
Yes, that should not be the case on my PC.

But thanks for your time.

mobilexcopter

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Re: GPU is not important?
« Reply #12 on: July 30, 2014, 07:18:42 AM »
It's nothing.  ;)

I did notice however, that the issue is allready discussed in Bug Reports area so I suggest it is continued there to avoid cross-posting.

Best regards,

Alex

Patribus

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Re: GPU is not important?
« Reply #13 on: July 30, 2014, 11:18:24 AM »
Hello, yes that's right.

Please continue the discussion here > http://www.agisoft.ru/forum/index.php?topic=2261.msg14110