PC for Point Clouds

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ecasagrande
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PC for Point Clouds

Post by ecasagrande »

I am currently using a MS Surface Book 2 as my workstation. It is hobbled with a 25w CPU, and is very thermally limited with basically everything it does. I am potentially looking to replace it with a machine that is purpose-built to handle this work, as I see a lot of pinned CPU situations, and I want to reduce that.

My issue is that it doesn't seem like CPU is always the limit, so I'm not sure what the limit is in those not-because-of-the-CPU situations. I'm presuming memory bandwidth, but I am not aware of how I would test that. The SSD also seems to have no real problems keeping up.

Regardless, what should I be going for with a new PC? Max clockspeed (Intel i9), more cores (Ryzen 9), more cores and more memory bandwidth (Threadripper)? I know my current laptop peaks at about 2GHz when you're asking it to do actual work. I know my home PC (which I unfortunately do not currently have access to for testing) will happily run 4.4GHz on 12 cores for an unlimited amount of time. And I know the last workstation I built would do 4.2GHz across 24 cores for an unlimited amount of time, and at double the memory bandwidth.

I'm new to this place, so I'm not looking to have them throw a pile of cash at minimal gains. However, for $2k, I could build something pretty hefty, especially if I know where to put my $$.
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Re: PC for Point Clouds

Post by Carbix »

This is what you nee...want.

https://ca.pcpartpicker.com/list/7VnsRk

But what you need is 3 fast hard drives 1 with 500-1tb of storage and 2x drives with 3x times the capacity of your largest project. You might need to be creative with storage. The 2 drives are used for main “worksite” drive and the other is a scratch disk/temp file dump area.

When it comes to CPU go with speed over cores. But cores do come in a close second.

You could get away with this.

https://ca.pcpartpicker.com/list/W3Z4Rk

I did not show a video card. Find a used 1080ti, only thing you will ever really need is video memory. The 1080ti has 11gb. They can be found for like $700 used.
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Re: PC for Point Clouds

Post by Raimund58 »

Carbix wrote: Wed Sep 16, 2020 6:04 am I did not show a video card. Find a used 1080ti, only thing you will ever really need is video memory. The 1080ti has 11gb. They can be found for like $700 used.
700$ for a used GTX 1080ti? You can get a new RTX 3080 for 700$... Or a used RTX 2080ti for ca. 500$ :D
:)
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Re: PC for Point Clouds

Post by ecasagrande »

Thanks for the input! I contacted purchasing and they said it's going to be December by the time I have a CHANCE to replace this laptop :(.

Good news, I found an Alienware PC in accounting with a 3800X. Apparently was purchased "because accounting needed a more powerful PC", but changing licensing to the new PC was a problem. So, there it sat, collecting dust.

Come December, maybe ZEN3 will be able to bridge that clockspeed gap to Intel's newest heaters, and I can scoop up something shiny.
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Re: PC for Point Clouds

Post by VinceMain »

I recently did a "Budget" build for my boss following the guidelines of a build I have at home (had acceptable performance for pointclouds) But that worked out roughly to under $1000 . My findings are depending on the software you use, CPU helps processing point clouds ( Unifying and importing ) and GPU does not really do much but a SSD improve performance across the board. We have old workstations from 2014 we fitted with SSD and have seen a improvement on performance in Leica Cyclone. But saying this, working with 3D Reshaper ( 3DR Cyclone now ) that just grabs all the ram you have in meshing and cleaning up of the point cloud.

AMD Ryzen are a good prospect if you want to save money .
Nvidia 1660 are still viable if the money is tight
32GB ram or more is a must. But don't buy faster ram if you are buying intel CPU as most CPU's only support 2400mhz Ram.
SSD of 512GB
2X 2TB Hard drive that are reliable like surveillance drive that are used to a lot of read and writing onto the drive .
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Re: PC for Point Clouds

Post by Groothedde-ing »

Carbix wrote: Wed Sep 16, 2020 6:04 am This is what you nee...want.

https://ca.pcpartpicker.com/list/7VnsRk

But what you need is 3 fast hard drives 1 with 500-1tb of storage and 2x drives with 3x times the capacity of your largest project. You might need to be creative with storage. The 2 drives are used for main “worksite” drive and the other is a scratch disk/temp file dump area.

When it comes to CPU go with speed over cores. But cores do come in a close second.

You could get away with this.

https://ca.pcpartpicker.com/list/W3Z4Rk

I did not show a video card. Find a used 1080ti, only thing you will ever really need is video memory. The 1080ti has 11gb. They can be found for like $700 used.
What is your experience with the Threadripper? The support department of Leica Benelux advised me against it, because Register360 could not handle this processor properly. Instead, an Intel i9 processor was recommended. I currently have this one in the PC.

I have no idea how Cyclone core deals with this, but from what I've heard it has only recently started using multiple cores.

We are about to purchase a new PC due to expansion and am also curious what the best PC would be. At the moment I work with the following components: NVIDIA Quadro P4000, Intel Core i9-7940X, WD Black 4TB, Samsung 970 PRO 1TB M.2, Samsung 860 PRO 4TB and Corsair Vengeance LPX - DDR4 128 GB memory. This combination works very well for me.
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