We are considering to build a workstation for scientific computing (general data science, solving PDEs, etc.). Since the workstation is intended for only CPU-intensive computations, we do not need the best GPU. Instead, we would like to get (within our budget) the most powerful possible computing workstation that supports having at least 512 GiB of RAM. Due to the memory requirement, building a system around the Threadripper 3990X is out of question. Instead, we have thought to buy Threadripper Pro 3995WX.
The question is, are you aware of sWRX8 motherboards that have 16 DIMMs? If not, which motherboard and memory combination would you suggest?
If all the current sWRX8 motherboards have only 8 DIMMS slots, it of course implies purchasing 8x64 GiB RAM modules, which are very expensive. In that case, we might purchase half of the RAM modules now and half of them later, so if the memory exceeds the budget, it won’t be big deal. Do you have hints, useful experience, warnings regarding 64 GiB RAM modules?
Of course, there is also an option to consider EPYC CPUs (which have better selection of motherboards than TR Pro, particularly because they usually have more than 8 DIMM slots) instead of Threadripper Pro. However, EPYC CPUs and motherboards are so expensive that although purchasing 512 GiB of RAM for an EPYC setup could be more affordable than purchasing the same amount for a TR Pro setup, the overall setup would cost likely more in the EPYC case. Not to mention that TR Pro 3995WX is perhaps the most powerful CPU for scientific computing at the moment. Do you have opinions?
Budget. $11500 USD (10000€)
Parts to purchase: a CPU, a motherboard, RAM, a power supply, a decent GPU, SSD (with minimum capacity of 1TB), a case, and fan coolers.
Custom water cooling: No
Operating System: Linux