CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Hardware

Hardware spec (cpu & gpu)

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Display Modes
Old   February 2, 2014, 16:38
Default Hardware spec (cpu & gpu)
  #1
New Member
 
Samuel
Join Date: Feb 2014
Posts: 1
Rep Power: 0
SamuelB is on a distinguished road
Hello.

I'm looking in a new machine for 90% structural(non-linear+contacts) and 10% CFD. Models ranging from 50k to 1M dofs.

Limitations: No cluster. 12 HPC Licenses (may increase in the future). Operated with RSM.

Due to limited amount of licenses it needs to be a fast machine. I'm looking at 3cores+1gpu per job in a total of 3 jobs, or 2cores+1gpu for 4 jobs. 32GB per job.
A 2x8cores with lots of RAM is already present for big jobs.


CPU questions:
Significant improvement from sandy to ivy to haswell in Strutucral/CFD? Haswell has AVX2 and that may provide an increase from 0% to 50% in floating point. But haswell has half the memory bandwidth of Ivy,

What about AMD 6328(8C) and 6308(4C)?

GPU questions:
Are there benchmarks for different nvidia cards? (k10, k20, k5000)?
Do I need 2 Nvidia GPU? I have seen CUDA applications that the CUDA card is only unlocked with a companion card.
Are AMD card supported in 15? Are there benchmarks?
What about the Intel Phi cards for structural? How do they perform?

Options evaluated so far (RAM not included, GPUs are K5000):

Assuming I can use a single videocard for computing:
(My choice) 3x $2500 1GPU + 4C @ 3.6GHz Dell T3600 - E1620(sandy bridge).

3x $3200 1GPU + 4C @ 3.7GHz from HP. Same as above but with ivy bridge.
2x $7000 2GPU + 2x4C @ 3.5Ghz Dell T5610
1x $12000 3GPU + 2x8C @ 3.5Ghz.Dell Rack Workstation (Very nice option)

Side comments:

This 4C @ 3.5Ghz Haswell-Xeon with a GPU (if supported). This is my choice if a GPU could be added. Verifying.
This 4x4C @ 3.5Ghz 6308 Opterons with GPUs would be awesome for a larger deployment.

Thanks.
SamuelB is offline   Reply With Quote

Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Superlinear speedup in OpenFOAM 13 msrinath80 OpenFOAM Running, Solving & CFD 18 March 3, 2015 06:36
Upgrade CPU or GPU which one is better RTAF Hardware 1 January 27, 2012 10:06
Hardware (CPU / RAM) for academic computing SlicedBread Hardware 1 November 5, 2011 16:58
OpenFOAM 13 Intel quadcore parallel results msrinath80 OpenFOAM Running, Solving & CFD 13 February 5, 2008 06:26
OpenFOAM 13 AMD quadcore parallel results msrinath80 OpenFOAM Running, Solving & CFD 1 November 11, 2007 00:23


All times are GMT -4. The time now is 10:36.