Select a new server

Looking for new hardware to run WRF? Intel or AMD? Check this forum.
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dominic
Posts: 336
Joined: Thu Jun 14, 2012 7:19 am

Select a new server

Post by dominic » Wed Nov 20, 2013 7:40 am

Hello everyone, I am looking for a server used on ebay, I want to find something cheap but it works with wrf.

what do you think of this? good for wrfems?

http://www.ebay.it/itm/Dell-SC1425-Dual ... 6e8&_uhb=1

meteoadriatic
Posts: 1603
Joined: Wed Aug 19, 2009 10:05 am

Re: Select a new server

Post by meteoadriatic » Wed Nov 20, 2013 8:22 pm

Good but little bit slow...

dominic
Posts: 336
Joined: Thu Jun 14, 2012 7:19 am

Re: Select a new server

Post by dominic » Thu Nov 21, 2013 6:57 am

I would need a solution used, thus saving quite a bit. Which server do you recommend?

A question, but the consumption of one of these servers is high right?

meteoadriatic
Posts: 1603
Joined: Wed Aug 19, 2009 10:05 am

Re: Select a new server

Post by meteoadriatic » Thu Nov 21, 2013 7:38 am

I recommend neither one. Haswell I5 is much faster than all that old 2-CPU Xeon running on 800MHz. I can recommend such 1U rack system only if:

1) You must use rack unit because you have rack and have no space for tower unit
2) You have air condition running at 20°C or lower, 24/7

In every other case you will be much better with tower unit.

dominic
Posts: 336
Joined: Thu Jun 14, 2012 7:19 am

Re: Select a new server

Post by dominic » Thu Nov 21, 2013 10:44 am

Hello Ivan, thank you for clarification, then a nice Intel Core i5-4670K should be just fine right?

You processors which have currently?

meteoadriatic
Posts: 1603
Joined: Wed Aug 19, 2009 10:05 am

Re: Select a new server

Post by meteoadriatic » Thu Nov 21, 2013 11:01 am

dominic wrote:Hello Ivan, thank you for clarification, then a nice Intel Core i5-4670K should be just fine right?
I think this is much better idea. Keep also in mind that old generation CPUs draw lot of current and are pretty much inefficient in comparision with newest one. I would personally never buy anything older than 2 generations for WRF, regardless of how cheap it is.

4670K if you like overclocking, or 4670 if you do not.

dominic wrote:You processors which have currently?
Operationally, i7-3770K, i5-4670, and dual Xeon X-5570 (1333MHz memory/3-Ch).

dominic
Posts: 336
Joined: Thu Jun 14, 2012 7:19 am

Re: Select a new server

Post by dominic » Thu Nov 21, 2013 11:05 am

Thanks Ivan, then just miro I have the opportunity to think about taking a 4760 (I take it with the multiplier locked, you'll save a little bit)


And if you took a I7 4770? What would be different in terms of performance?

Thanks again

meteoadriatic
Posts: 1603
Joined: Wed Aug 19, 2009 10:05 am

Re: Select a new server

Post by meteoadriatic » Thu Nov 21, 2013 11:10 am

Just keep in mind that memory bandwidth is important. So use fast memory chips (>2000MHz if you can) and chipset that supports that memory speeds.

4770 could be marginally faster than 4670. Only cache amount is different. Maybe around 5% faster... not more than that probably.

That would be "best speed for least cost". If you want more speed, you must spend much much more money.

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