Dell 7865 for CFD with openFOAM

ginop · March 9, 2023, 06:34

Anyone have experience or feedback about this machine?

the set-up would consider:
- AMD Ryzen Threadripper PRO 5965WX, 128MB
- 64GB RAM, 8 x 8GB, DDR4, 3200MHz, ECC

from what I can understand in this thread the CPU should be capable of decent performance, and the 8 DIMMs should be optimal?

the company I work for is looking to buy a workstation for CFD, so unfortunately I am not able to buy used parts or even full custom builds

any recommendation? should I aim for 128GB RAM?

Thank you in advance!!!

flotus1 · March 9, 2023, 07:09

Ordering 8 DIMMs is indeed crucial for this type of processor.
How much memory you need depends on the size of your simulations. Though for a professional workstation in this price class, I would not go with anything lower than 128GB, regardless of what I estimated the actual requirement to be. In relation to the total price tag, the increase from memory can't be that big.

March 9, 2023, 06:34	Dell 7865 for CFD with openFOAM	#1
ginop New Member Gino Parisella Join Date: Mar 2017 Location: Perth, Western Australia Posts: 22 Rep Power: 9	Anyone have experience or feedback about this machine? the set-up would consider: - AMD Ryzen Threadripper PRO 5965WX, 128MB - 64GB RAM, 8 x 8GB, DDR4, 3200MHz, ECC from what I can understand in this thread the CPU should be capable of decent performance, and the 8 DIMMs should be optimal? the company I work for is looking to buy a workstation for CFD, so unfortunately I am not able to buy used parts or even full custom builds any recommendation? should I aim for 128GB RAM? Thank you in advance!!!

March 9, 2023, 07:09		#2
flotus1 Super Moderator Alex Join Date: Jun 2012 Location: Germany Posts: 3,400 Rep Power: 47	Ordering 8 DIMMs is indeed crucial for this type of processor. How much memory you need depends on the size of your simulations. Though for a professional workstation in this price class, I would not go with anything lower than 128GB, regardless of what I estimated the actual requirement to be. In relation to the total price tag, the increase from memory can't be that big. ginop likes this.

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