[luca.s]

Hello there,
I am just approaching CFD and the forum, and looking for some advices.
I am a member of a research group at University and we need to work on different models using Delft3D and OpenFOAM softwares. We have a 6000 € budget to purchase an assembled desktop computer.
Do you have any advice on a good one for that prize?
Which are the best options, according to you?
Thank you so much.
Luca

[flotus1]

One of the reasons why you are not getting a response:
Now is a pretty bad time to buy a CFD workstation in this price range. Both AMD and Intel are currently in the process of releasing new processor generations. This would not be a big deal with the usual 5%-10% performance increase we saw between previous generations. But this time CFD performance per dollar should increase by 50% or more based on the specifications of these new CPUs.
So if you can wait for a few more weeks and the reliability of technically mature (read: older) hardware is not that important to you: hold your money.

[jf_vt]

Originally Posted by flotus1

...this time CFD performance per dollar should increase by 50% or more based on the specifications of these new CPUs...

This will be quite a gain indeed
As a Non expert in the "hardware department", I will be very interested to have more insight on these gains and the best way to leverage them as I will be on a market for a new CFD rig next Year. What should I be looking for?
Thanks
JF

[BlnPhoenix]

Originally Posted by jf_vt

This will be quite a gain indeed
As a Non expert in the "hardware department", I will be very interested to have more insight on these gains and the best way to leverage them as I will be on a market for a new CFD rig next Year. What should I be looking for?
Thanks
JF

AMD is releasing Ryzen Threadripper (desktop) with 16 Cores and Ryzen Epyc (server) CPU's with up to 32 Cores these days. You should really watch out for those. Threadripper is $999 per chip which may be way cheaper than intels counterparts resp. getting you a lot more bang for the buck. As you said you have $6000 to spend i guess EPYC CPUs is the category you want to compare with Intel's XEON CPUs. Many companys have said to switch to AMD now because of the disruption caused by AMDs ZEN technology.

[JBeilke]

It will be interesting to see the comparison between a 16 core Threadripper and a 16 core Epyc. Higher clock speed vs. more memory chanels.

[xava]

The first Threadripper Euler3D benchmarks were just published at tomshardware, for what is it worth it for your worklaod. You can read it all here

[flotus1]

Yeah, we've had that topic already. The "Euler CFD" results on that site are implausible.
I also had a quick chat with one of their editors a while ago. They have no intention to look into this issue.

[xava]

Jup, read that. Is there currently a benchmark out there, which better reflects the 'real' cfd workloads?

[Ahmed Saeed Mansour]

Hello, I need to run a mesh which has about 5 million cells using Fluent, what is the good CPU that can run this simulation fast? I need the type, number of cores, processors and prices...
Thanks