Quad socket server

beerih · August 29, 2017, 02:05

I am considering getting a quad socket server for our CFD simulations.
We are using FloTHERM, the FloTHERM solver cannot split the solution to multiple systems only to multiple CPUs on a single system.

That is why I was thinking the quad socket would be the right choice.

I was thinking about 4 low core count 4-10 , high clock >3GHz CPUs.
Will I get the benefit of the quad socket memory bandwidth or are there other bottlenecks I did not consider?

Typical simulations in our team are 1M-15M cells

evcelica · August 29, 2017, 11:19

The Quad socket server should run very well. Make sure you have at least 4 DIMMS per CPU, and they they are populated evenly and correctly across all CPUs. This would be a "balanced memory configuration"

flotus1 · August 29, 2017, 11:36

Make this 6 DIMMs per CPU with the new Skylake-SP Xeon processors

beerih · August 30, 2017, 08:40

Thanks. I saw these only now lunched, can I find a server that has them?

Kaskade · September 7, 2017, 05:51

https://www.supermicro.com/products/...-2049U-TR4.cfm

http://www.fujitsu.com/de/products/c...rack/rx4770m4/

Take into consideration that you need Xeon Gold 61xx processors. This table can be useful when choosing: https://en.wikichip.org/wiki/intel/xeon_gold

Reasonably priced DDR4-2666-modules start at 16 GB. So you would end up with at least 384 GB.

August 29, 2017, 02:05	Quad socket server	#1
beerih New Member Join Date: Aug 2017 Posts: 2 Rep Power: 0	I am considering getting a quad socket server for our CFD simulations. We are using FloTHERM, the FloTHERM solver cannot split the solution to multiple systems only to multiple CPUs on a single system. That is why I was thinking the quad socket would be the right choice. I was thinking about 4 low core count 4-10 , high clock >3GHz CPUs. Will I get the benefit of the quad socket memory bandwidth or are there other bottlenecks I did not consider? Typical simulations in our team are 1M-15M cells

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August 29, 2017, 11:19		#2
evcelica Senior Member Erik Join Date: Feb 2011 Location: Earth (Land portion) Posts: 1,167 Rep Power: 23	The Quad socket server should run very well. Make sure you have at least 4 DIMMS per CPU, and they they are populated evenly and correctly across all CPUs. This would be a "balanced memory configuration"

August 29, 2017, 11:36		#3
flotus1 Super Moderator Alex Join Date: Jun 2012 Location: Germany Posts: 3,398 Rep Power: 46	Make this 6 DIMMs per CPU with the new Skylake-SP Xeon processors

August 30, 2017, 08:40		#4
beerih New Member Join Date: Aug 2017 Posts: 2 Rep Power: 0	Thanks. I saw these only now lunched, can I find a server that has them?

September 7, 2017, 05:51		#5
Kaskade Senior Member Onno Join Date: Jan 2012 Location: Germany Posts: 120 Rep Power: 15	https://www.supermicro.com/products/...-2049U-TR4.cfm http://www.fujitsu.com/de/products/c...rack/rx4770m4/ Take into consideration that you need Xeon Gold 61xx processors. This table can be useful when choosing: https://en.wikichip.org/wiki/intel/xeon_gold Reasonably priced DDR4-2666-modules start at 16 GB. So you would end up with at least 384 GB.