From mboxrd@z Thu Jan  1 00:00:00 1970
From: Kai Trukenmueller <trukenm@ag2.mechanik.tu-darmstadt.de>
To: gsl-discuss@sources.redhat.com
Subject: Re: gsl_multifit
Date: Wed, 19 Dec 2001 13:20:00 -0000
Message-id: <20011018182055.A2874@abb121.ram1st.wh.tu-darmstadt.de>
References: <4DFD94A38EB3104E838576A77AEBB36E166DC2@hermes.mathcore.se>
X-SW-Source: 2001/msg00616.html

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'