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Re: [Help-gsl] memory requirements for doing nonlinear least-squares fit


From: Brian Gough
Subject: Re: [Help-gsl] memory requirements for doing nonlinear least-squares fitting
Date: Thu, 4 Nov 2004 18:00:15 +0000

Yiping Zhan writes:
 > However, this only happens after at least 3 iterations. And the
 > program works well for smaller datasets. The size 590368768 correspond
 > to the size of the Jacobian matrix for my data (1600000 data entries,
 > 46 parameters to fit) (BTW, my machine has >2GB of memory). However, I
 > don't understand why the error only occurs after a few iterations. Is
 > the memory usage supposed to increase as the number of iterations
 > increase?

The memory usage should not increase simply by iterating the solution.
Only the gsl*alloc functions allocate memory.

-- 
Brian Gough

Network Theory Ltd,
Commercial support for GSL --- http://www.network-theory.co.uk/gsl/




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