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Author Topic: How to overcome RAM Limitation  (Read 7154 times)

7eicher

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How to overcome RAM Limitation
« on: July 10, 2013, 12:40:44 PM »
Hi together,

I would like to know if someone have successfully add SWAP to the virtual memory in order to overcome the RAM limitation? How does PhotoScan perform in that case?

Take care

aphextwin

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Re: How to overcome RAM Limitation
« Reply #1 on: July 10, 2013, 02:56:41 PM »
It won't swap the ram.

In my experience when the limit is reached it performs by a simple crash with the option to send the crash report to agisoft :-)

I desperately hope they are making good progress with distributed computing.

David Cockey

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Re: How to overcome RAM Limitation
« Reply #2 on: July 10, 2013, 03:02:28 PM »
I have only run into memory limitations with build geometry. My work-around in that case is to:
1) Align
2) Duplicate the resulting chunk
3) Adjust the "box" in each chunk so that it only covers a portion of the geometry, with the chunks overlapping.
4) Build Geometry in each chunk.

7eicher

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Re: How to overcome RAM Limitation
« Reply #3 on: July 10, 2013, 03:16:54 PM »
I also hope agisoft is on the cloud front one day!

Thanks David, i'll try that!

smoluck

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Re: How to overcome RAM Limitation
« Reply #4 on: August 13, 2013, 06:20:27 AM »
Interesting post !

Is there a script possibilities to do a split procedure for defining the "bounding box volume" by multiplicator like:

"n" Parts (vertical 2D Split),
or
8 Parts (3D Volume split)

Just by defining the total bounding box volume at the start of the project, and launch the script ?

tweezlednutball

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Re: How to overcome RAM Limitation
« Reply #5 on: August 13, 2013, 06:41:17 AM »
I have mentioned this in the feature request area where the bounding box could be subdivided and each piece process separately and then combined at the end.