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October 19, 2012, 11:27 |
CPU selection (E5-2650) for CFD simulation
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#1 |
New Member
Xue-Guan Song
Join Date: Mar 2009
Location: Busan, Korea
Posts: 14
Rep Power: 17 |
Hi guys,
I'm trying to select a workstation for my CFD simulation. Someone gave me a list of HP Z820 workstation, you can see below, but the price is soooo expensive. LJ452AV HP Z820 Workstation £4,453.92 £4,453.92 £5,344.70 QG255AV HP Single Unit Packaging QG197AV HP Z820 1125W 90 Efficient Chassis QG517AV#ABU Microsoft Windows 7 Professional Edition 64bit OS UK QE249AV Windows 7 64 Bit Factory Image Recovery A2A42AV Intel Xeon E5-2687W 3.10Ghz 20MB 1600 8C 1st CPU A2A56AV Intel Xeon E5-2687W 3.10Ghz 20MB 1600 8C 2nd CPU A0V52AV 32GB DDR3-1600 (8x4GB) 2CPU Registered RAM QG214AV NVIDIA Quadro 2000 1GB Graphics QJ687AV 1TB 7200 RPM SATA 1st Hard Drive QG096AV#ABU HP USB Standard Keyboard QG247AV HP USB Optical Scroll Mouse QG250AV 16X SuperMulti DVDRW SATA 1st ODD B2L51AV#ABB HP 3/3/3 Warranty EURO QG288AV HP Liquid Cooling Solution LJ456AV#ABU HP Z820 Localization Kit AY110AV HP Simple Asset Tagging Service YQ205AV HP YQ205AV Basic UNIT Asset Tag (SN&MAC) YQ206AV HP YQ206AV Basic BOX Asset Tag (SN&MAC) LW490AA#ABU HP CPQ LA2206xc 21.5-In LED LCD UE342E HP 3 year Next Business Day Onsite plus Defective Media Retention Workstation Since the high price, I want to change to CPU to E5-2650. but the frequency of E5-2650 is just 2.0GHz, I'm not sure if this is fast enough for CFD simulation. However, in terms of cpubenchmark, http://www.cpubenchmark.net/high_end_cpus.html, this one is also OK. So, could you give me some suggestion about this workstation? Should I change some components like RAM or Graphic card? Thanks a lot! XG |
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October 22, 2012, 13:03 |
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#2 |
Senior Member
Join Date: Mar 2009
Location: Austin, TX
Posts: 160
Rep Power: 18 |
If you are using an unstructured mesh, then memory bandwidth is usually more important than CPU clockspeed.
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October 23, 2012, 17:09 |
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#3 |
Senior Member
Erik
Join Date: Feb 2011
Location: Earth (Land portion)
Posts: 1,183
Rep Power: 23 |
What software will you be using?
You can probably ditch the ECC memory to save money, just go with desktop memory. |
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