[dord]

Hello Everyone,

We have determined 3 processors to be used in our workstations.
It will be used as dual cpu configuration on our workstation.


Software : (Ansys Cfx, Fluent, Mechanical)
There are no problem about hpc license.



These are :

-Xeon Gold 2nd Gen 5218R
-Xeon Gold 2nd Gen 5220R
-Xeon Gold 2nd Gen 6230RIn order to use these processors at full performance, that is,
to avoid bottlenecks, we need to load optimal memory.

The 6230R model processor supports up to 6 channels of DDR4-2993 memory type. (Max Memory Size 1TB).
5220R and 5218R model processors support up to 6 channels in DDR4-2667 memory type. (Max Memory Size 1TB).

My first question: We will use two CPUs in our workstation. If we use two CPUs, can we multiply the max memory size by 2?
So if we have 2TB ram on the motherboard, can we use it efficiently?

My second question: If there are 16 ram sockets on the motherboard and all of them have ram sticks, will there be octa-channel performance from rams?
Will this be good or bad?

There are some calculations on the internet about therotical maximum memory bandwith and processor compatibility.

For example ; Memory (12 Unit 64 GB 2933 MHz DDR4 ECC)


Memory Type : DDR4
Frequency : 2933 MegaHertz
Channel Number : 6 (Hexa Channel)

2933*8(Bit Number)*6 = 140800 MB/s = 140 GB/s

Cpu

Bus Speed : 10.4 GT/s (Intel Ultra Path Interconnect) (Gold 6230R)

10.4 GT/s = 83.2 GB/s


My third question: Do we need to multiply the Bus speed by 2 when we are going to use dual processors? When we multiply, will the memory bandwith (140 GB/s) be insufficient since 83.2*2 = 166.4 GB/s?



My fourth question: If there are 16 ram slots on the motherboard and if all of them are filled, if the number of channels is 8, will the ram bandwith 186.6 GB/s?


Thank you.