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#1 |
New Member
Join Date: Mar 2023
Posts: 4
Rep Power: 3 ![]() |
Hello all, (i'm sorry if i somehow violating some rules here)
So, i work at wastewater treatment equipment manufacturer, we produce bioreactor tanks that kind of stuff. I was tasked to optimize the bioreactor design, and so i thought of CFD. The problem is, i have very little knowledge of CFD. i'm planning to use OpenFoam What i want to do is simulating fluid flow inside the bioreactor, and also for my own project of pc heat sink stuff Need hardware advice on this, i'm considering this xeon w-2696 v3 (+ chinese mobo) or TR 1920X (+ X399 aorus pro) 64GB RDIMM or more some kind of GPU Seasonic Prime PX-650 a bit bummed because i can't get LGA 2066 platform cheaply in my country |
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#2 |
Senior Member
Will Kernkamp
Join Date: Jun 2014
Posts: 365
Rep Power: 14 ![]() |
I am assuming you are considering a E5-2696 v3 processor with 18 cores.
If yes: Consider going to a dual cpu system. Make sure it has octo channel memory (four channels per cpu). Fill all DIMM slots with dual rank RDIMMs of the same size. Choose a DDR4 motherboard, because you will get 2133 MT/s per channel (and not 1866 MT/s with DDR3). Such a system would be nearly twice as fast as the Ryzen 1920x. Better still: Get two 16 core E5-2683 v4 cpu and memory DDR4 dual rank 2400 MT/s in each of 8 channels. These are now cheap too and in openfoam faster by a factor 2400/2133. Caution: If you want to do gaming as well, dual cpu systems are not as desirable. Also, you would want to get the 16 core E5-2697A because of the higher clock speed. The performance difference between single cpu systems E5-2697Av4/DDR4-2400 and Ryzen 1920x/DDR4-2667 should be small both for openfoam and for gaming. Important Note: For openfoam you should have the best possible memory configuration. The xeons prefer dual rank RDIMMs, but it appears that the 1920x need single rank at DDR4-2667 or Dual Rank DDR4-2400. I have no experience with the 1920x myself, but there is a run somewhere in the openfoam benchmark thread that shows a completion time of 142.2 seconds. My best time for dual E5-2697Av4 is 58.8 seconds. A single E5-2697Av4 should complete the benchmark in a little more than twice that, probably ~130 seconds. The E5-2683v4 is just 2% slower when running on all cores. |
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#3 | |
New Member
Join Date: Mar 2023
Posts: 4
Rep Power: 3 ![]() |
Quote:
After researching the parts you mentioned, the 2696 v3 is the best deal i could find. I also found a dual cpu system bundled with the mobo. I don't game in this system as i have one in home. thank you so much for the reply! |
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#4 |
Super Moderator
Alex
Join Date: Jun 2012
Location: Germany
Posts: 3,426
Rep Power: 49 ![]() ![]() |
For dual-socket 2011-3, the E5-2697A v4 is the best deal.
They start at around 90$ on ebay these days. Factoring in the costs for the other parts of the system, saving 20$ on the CPUs by dropping to older/lower clock speed CPUs is not worth it at all. |
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#5 | |
New Member
Join Date: Mar 2023
Posts: 4
Rep Power: 3 ![]() |
Quote:
thank you for the reply, the man himself! |
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#6 |
Senior Member
Will Kernkamp
Join Date: Jun 2014
Posts: 365
Rep Power: 14 ![]() |
Does the bundle have the DDR4-2133 memory? If so, your 2x E5-2696v3 should be a very decent performer on OpenFOAM. Later on, when the v4 cpus drop in your area as well, you can upgrade and gain a bit better performance.
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#7 | |
New Member
Join Date: Mar 2023
Posts: 4
Rep Power: 3 ![]() |
Quote:
yes it is, i just need psu and some kind GPU to complete the system |
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Tags |
hardware, openfoam, threadripper, xeon |
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