gsl_multifit

Kai Trukenmueller trukenm@ag2.mechanik.tu-darmstadt.de
Wed Dec 19 13:20:00 GMT 2001


Hi,

> You could try computing the solution using the following
> functions instead and see if you get any speed improvement.
> gsl_linalg_QR_decomp
> gsl_linalg_QR_lssolve
Thanks for the tip. It's much faster now, but still slower than octave.

Order:	(300,200)  (600,400)  (900,600)  (1200,1000)  (1500,1200)
Octave:  0.340s     3.320s     11.580s    1m9.680s    2m1.090s
gsl(QR): 0.390s     4.560s     22.690s    1m38.640s   5m1.580s
-- 
:wq `Kai Trukenmueller'


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