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I just bought a new computer (AMD Athlon 64 X2 4000+)
I am not sure how to take advantage of the Multi-processing speed gains. Do I have to do a special set up for MPLUS or MPLUS 4.21 automatically does?
I have notice that when I run my models (for instance I am running some MIMIC models with zero-inflated poison endogenous indicators in a sample of 4000 subjects) that I am only using one of the processors but never two. Is it normal?
Thanks
Caridad |
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Yes, Mplus only uses one processor by default. You need to specify the number of processors Mplus should use with the PROCESSORS option in the ANALYSIS command.
For example:
ANALYSIS:
process=2; |
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Fantastic!
This really speeds up the analysis, particularly when running the mixture analyses with random starts. |
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| Is there a limit to how many processors Mplus can/will use? |
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| No. |
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| Anonymous posted on Thursday, July 05, 2012 - 10:55 am
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| I have a quad-processor desktop with 4MB, and would have assumed that the maximum number of processors I could run would be 4. However I tried 8 and this seemed to work. Should this be? |
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| We have no way of knowing how many processors a computer has. If you say you have more than you do, this could cause Mplus to run inefficiently. You should state the number of processors correctly. |
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