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Re: ode-initval implicit solvers and development
- From: Tuomo Keskitalo <Tuomo dot Keskitalo at iki dot fi>
- To: GSL Discuss Mailing List <gsl-discuss at sourceware dot org>
- Date: Sat, 24 Jan 2009 13:52:22 +0200
- Subject: Re: ode-initval implicit solvers and development
- References: <48E25CA9.6080306@iki.fi> <490DE4BD.7070907@iki.fi> <m3y700znqd.wl%bjg@network-theory.co.uk>
Hello,
I've been working on an implementation of the Adams linear multistep
methods with functional iteration for GSL ode-initval (msadams), and
finally got a first beta for you to test and comment on. The source is
available at the git repository mentioned below.
Please note the comments on file ode-initval/ChangeLog-Keskitalo. The
biggest change is an addition to the step and control object structures
to allow passing error tolerance to steppers. I'm afraid a change like
this is really needed.
I'm planning to implement also the backward differentiation formula
(BDF) methods with Newton iteration for stiff problems.
Kind regards,
Tuomo
On 11/03/2008 08:08 PM, Brian Gough wrote:
At Sun, 02 Nov 2008 19:34:53 +0200,
Tuomo Keskitalo wrote:
while waiting for a reference book on multistep methods to arrive, I've
made some more modifications to current ode-initval, which I hope are
now close to being ready to be included into GSL. The .git directory
that should include the changes can be found at
http://iki.fi/tuomo.keskitalo/gsl/ode-initval-additions/.git
Thanks, I've retrieved it successfully (much easier than patches by email).
For those new to git the relevant commands to download it are
git remote add tuomo http://iki.fi/tuomo.keskitalo/gsl/ode-initval-additions/.git
git fetch tuomo
The branch name is then tuomo/master.
--
Tuomo.Keskitalo@iki.fi
http://iki.fi/tuomo.keskitalo