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Showing results 1 to 10 of 10 Search took 0.00 seconds. Search: Posts Made By: ghorrocks

Forum: CFX October 31, 2012, 19:26

Replies: 38 What Hardware for CFX Views: 10,378 Posted By ghorrocks Doing good benchmarks is not easy. There are lots... Doing good benchmarks is not easy. There are lots of gotchas.

Forum: CFX October 28, 2012, 06:01

Replies: 38 What Hardware for CFX Views: 10,378 Posted By ghorrocks No, I am not suggesting you are getting different... No, I am not suggesting you are getting different speed for different nodes. I am saying that because the job is large it has the potential to run slower than optimal due to many reasons - memory...

Forum: CFX October 27, 2012, 07:24

Replies: 38 What Hardware for CFX Views: 10,378 Posted By ghorrocks Super-linear speed up (ie greater than 1)... Super-linear speed up (ie greater than 1) generally means the benchmark did not run properly on the single node case. Usually this is because it is too large to fit fully into memory so it had to...

Forum: CFX September 28, 2012, 07:30

Replies: 38 What Hardware for CFX Views: 10,378 Posted By ghorrocks No offense taken. It's all good. It is... No offense taken. It's all good. It is important for opinions to be expressed clearly, and if something is wrong then say so. You have obviously done some work and research in this area and your...

Forum: CFX September 27, 2012, 18:32

Replies: 38 What Hardware for CFX Views: 10,378 Posted By ghorrocks I never said it did. The CPU2006fp benchmark is a... I never said it did. The CPU2006fp benchmark is a good proxy for single processor performance. You can extract an accurate benchmark for multi-processor performance from a combination of the...

Forum: CFX September 19, 2012, 06:15

Replies: 38 What Hardware for CFX Views: 10,378 Posted By ghorrocks The E5-2620 CPU scores a 64 on the baseline... The E5-2620 CPU scores a 64 on the baseline CPU2006fp. It is also 6 cores. CPUs with this many cores are generally pretty hopeless when running with 6 processes. So save some money and go for a...

Forum: CFX September 14, 2012, 07:56

Replies: 38 What Hardware for CFX Views: 10,378 Posted By ghorrocks Have a look at the spec.org website, expecially... Have a look at the spec.org website, expecially the CPU2006 results page. For CFX single processor the SPECfp2006 benchmark is the one. For multi processor performance you can get it from...

Forum: CFX September 9, 2012, 06:25

Replies: 38 What Hardware for CFX Views: 10,378 Posted By ghorrocks Well, you have a good case to go to management... Well, you have a good case to go to management and ask for a major computer upgrade. The results your $46k license returns is being compromised and takes longer to save a few thousand bucks - a false...

Forum: CFX September 8, 2012, 07:25

Replies: 38 What Hardware for CFX Views: 10,378 Posted By ghorrocks I agree with Erik. Spend the money on the CPU as... I agree with Erik. Spend the money on the CPU as that is the key bit of the syste, for CFD. Then put in enough memory and HD, and go cheap on everything else. But remember that the cost of...

Forum: CFX September 7, 2012, 08:55

Replies: 38 What Hardware for CFX Views: 10,378 Posted By ghorrocks CFX has essentially the same demands for... CFX has essentially the same demands for computing resources as Openfoam. Most CFD cases need the fastest CPU you can buy, and about 2GB RAM per core. It is often better to run two CPUS (or even...

Showing results 1 to 10 of 10

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