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Author Topic: Hardware upgrades for faster results?  (Read 3256 times)

sneeuwvolkje

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Hardware upgrades for faster results?
« on: April 07, 2017, 12:46:03 AM »
Hi everyone,

I need some help deciding if some hardware upgrades an fasten up some of the processes.

Current specs:

CPU: IntelĀ® Core i5-6500, 3,2 GHz (3,6 GHz Turbo Boost) socket 1151
   +Cooler Master Hyper TX3 EVO
GPU: MSI GeForce GTX 1060 3GT OC 3 GB (GDDR5, 192 bit)
RAM: HyperX 16 GB DDR4-2133 Kit, (HX421C14FB2K2/16, Fury Black, XMP)
MOBO: Gigabyte GA-B150-HD3P
SSD: HyperX FURY, 120 GB (Serial ATA/600, MLC)
HDD: WD Blue, 1 TB (SATA 600, WD10EZEX)

Agisoft: Pro (64bit) 1.3.1

36 photo's (7MB each)
Align: accuracy high, key point limit 4,000,000 , Tie point 0 (30 min)
Build Dense Cloud: Ultra High, depth filtering disabled (took less than an hour)
Build Mesh: Arbitrary, dens cloud, face count high (11,759,464), extrapolated -> Took more than 4 hours
Export Pdf: around 1 hour to create, Acrobat reader fails: 3D parsing error

Does anyone have advice for a possible upgrade? Which part is the most important to upgrade?
Budget: <600

Goal of project: precise measurements in an osteoarchaeological context.

Alexey Pasumansky

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Re: Hardware upgrades for faster results?
« Reply #1 on: April 07, 2017, 01:33:02 AM »
Hello sneeuwvolkje,

I think you can tweak some parameters as well. Using 4 millions for key point and time point limit is unreasonable. I think you shouldn't go even above 100,000 key point and 40,000 tie points for your images, and having 60,000 + 20,000 would be already enough.
Also I'm not sure, why you are disabling depth filtering, the result would be extremely noisy.

As for the hardware, I suggest to check, if the mesh generation stage requires more RAM than you have. If it is the case, then long time for this job is a result of swap usage and installing more RAM would help. Additional or faster GPU would speed up alignment and dense cloud generation stages.

And regarding "parsing error" for PDF export. I think 3D PDF format is not suitable fo showing millions of polygons. It would handle a few hundreds of thousands of polygons only.

Best regards,
Alexey Pasumansky,
Agisoft LLC

Hans Keesom

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Re: Hardware upgrades for faster results?
« Reply #2 on: April 08, 2017, 03:22:18 PM »
Looking at your taskmanager I am a bit surprised. What is holding back your CPU? Why is it not at 100%?
It seems it is not shortage of memory.
Can open the resource manager and find a clue there?

And open GPU-Z to get an idea of what your graphic card is doing.

sneeuwvolkje

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Re: Hardware upgrades for faster results?
« Reply #3 on: April 09, 2017, 08:32:56 PM »
Hii thank you both for the answers. I bought extra RAM, I now have 2x HyperX 16 GB DDR4-2133. The Align, dense Cloud and Mesh step goes so much faster now.

Looking at your taskmanager I am a bit surprised. What is holding back your CPU? Why is it not at 100%?
It seems it is not shortage of memory.
Can open the resource manager and find a clue there?

And open GPU-Z to get an idea of what your graphic card is doing.


Don't really know why it didn't use the whole 100%, that's why I was a bit reluctant to buy extra RAM. However it seemed to help.

I added some new screenshots.



Hans Keesom

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Re: Hardware upgrades for faster results?
« Reply #4 on: April 10, 2017, 12:33:34 AM »
Very interesting to see the result, even if it does not totally makes sence to me. O well, as long as the result is positive.

Meamnwhile at my machine ....

sneeuwvolkje

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Re: Hardware upgrades for faster results?
« Reply #5 on: April 10, 2017, 01:33:05 PM »
I think the main difference between my and you work is I only have 15 pictures while you have 252. I found some interesting links about the amount of pictures, precision/quality, and what is asks from your PC.

https://www.pugetsystems.com/labs/articles/Agisoft-PhotoScan-Multi-Core-Performance-709/
http://www.agisoft.com/pdf/tips_and_tricks/PhotoScan_Memory_Requirements.pdf

Maybe it helps top eliminate some duplicate pictures, or similar angles.

Sadly I am still not happy with the result I think it is a bit to blurry.

If I send you the .psx file are you able to open it and see my project? (in the Attachment)
« Last Edit: April 10, 2017, 01:37:20 PM by sneeuwvolkje »

BobvdMeij

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Re: Hardware upgrades for faster results?
« Reply #6 on: April 10, 2017, 05:15:20 PM »
Very interesting to see the result, even if it does not totally makes sence to me. O well, as long as the result is positive.

Meamnwhile at my machine ....

I am having similar results with my machine. My CPU is pretty much always maxed, regardless of the processing step. My RAM usage, however, never tops 50%.