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Old   December 16, 2013, 01:46
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Dear friends:
I want to buy a workstation for the cfd parallel computation.
could you please give me some information about the performance comparison of xeon and opteron.
regards.
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Old   December 17, 2013, 04:31
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It depends on your software, availability of parallel licenses, memory configuration, model setup etc. Start reading these:

http://www.padtinc.com/blog/the-focu...-vs-intel-xeon

http://www.padtinc.com/blog/the-focu...-vs-intel-xeon

Workstation with new E5 Xeon Ivy-bridge

Opteron 63xx vs Xeon Memory Bandwith

Urgent please: Intel Xeon W3550

Best regards
Kim Bindesbøll
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Old   December 19, 2013, 12:56
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Quote:
Originally Posted by bindesboll View Post
It depends on your software, availability of parallel licenses, memory configuration, model setup etc. Start reading these:

http://www.padtinc.com/blog/the-focu...-vs-intel-xeon
Ah, lovely! Very nice demonstration of what some of us have been saying here, which is that you should start by counting the number of memory channels. Maximise that number, then worry about the rest ...
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Old   December 19, 2013, 14:25
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Although I would subscribe to this conclusion, I dont like the fact that these results were obtained on two completely different systems (for example linux vs windows)
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Old   December 19, 2013, 17:24
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Although I would subscribe to this conclusion, I dont like the fact that these results were obtained on two completely different systems (for example linux vs windows)
Have you seen a significant difference between similar systems running different operating systems? When I went to the trouble of measuring that, I found no difference between Linux and Windows, although different compilers did make a significant difference.
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Old   December 19, 2013, 18:30
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I was not saying that the huge difference observed in the "benchmark" came from the operating system.
If I had something to say in the last purchase of a workstation for our lab it would have been an opteron-based system.
It is just not a good practice to run such a comparison with different setups.
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