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Re: st: how to reduce running time and data size

From   Maarten buis <>
Subject   Re: st: how to reduce running time and data size
Date   Fri, 23 Apr 2010 20:03:24 +0000 (GMT)

--- On Fri, 23/4/10, sun samn wrote:
>    I am running simulation about a GMM in MATA; the
> matrices are only involved Within MATA. My sample size is
> 10000 and simulate for 1000 times, which makes the running
> like forever. Plus, it seems like the memory is not big
> enough, Is there any way I can do to improve this situation?

The simple answer is use fewer observations or fewer iterations.
More specific advise is hard to give, as we haven't seen your 
code. The are some general comments possible. You could try 
adding starting values if you have good ones, as is often the 
case in a simulation study. You could specify the 
-derivative()- option, but that can mean a lot time spent on 
programming and debugging, so if the time gain you receive from 
the faster program will outweight the time lost programming is 
an open quesiton.

-- Maarten

Maarten L. Buis
Institut fuer Soziologie
Universitaet Tuebingen
Wilhelmstrasse 36
72074 Tuebingen


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