[ADMB Users] Possible overflow in DF_dvlog

[John Sibert]

It looks like the LU decomposition code was reverted in r602.
http://admb-project.org/redmine/projects/issues/repository/revisions

John Sibert
Emeritus Researcher, SOEST
University of Hawaii at Manoa

Visit the ADMB project http://admb-project.org/

On 09/12/2012 09:23 AM, Johnoel Ancheta wrote:
> Try and recheckout a fresh copy first and rebuild all, then rerun...
>
> On Wed, Sep 12, 2012 at 8:11 AM, Mollie Brooks <mbrooks at ufl.edu 
> <mailto:mbrooks at ufl.edu>> wrote:
>
>     I just noticed that I'm only getting this behaviour on one
>     computer but not the other.
>
>     The one it works on gives this version info
>
>     bash-3.2$ ./pond -version
>     ADMB Program: ./pond
>
>     ADMB-11.X safe libraries compiled with Gnu C++ 4.2.1(64bit)
>     Build date: Aug 31 2012
>     Revision: 591:595M
>
>     Copyright (c) 2008-2012 ADMB Foundation and Regents of the
>     University of California
>
>     The computer where it doesn't work gives this version info
>     [mbrooks at r11a-s18 Bernoulli]$ ./pond -version
>     ADMB Program: ./pond
>
>     ADMB-trunk safe libraries compiled with Gnu C++ 4.4.6(64bit)
>     Build date: Aug 31 2012
>     Revision: 591
>
>     Could this be a problem with the ludecomp reversion? I'm using
>     choleski_decomp() in this program.
>
>     thanks,
>     Mollie
>
>     Mollie Brooks
>     Postdoctoral Researcher, Ponciano Lab
>     Biology Department, University of Florida
>     http://people.biology.ufl.edu/mbrooks
>
>
>     On 12 Sep 2012, at 1:44 PM, Mollie Brooks wrote:
>
>     > Hi,
>     > I've been getting a lot of these warnings.
>     > Possible overflow in DF_dvlog
>     >
>     > Then a lot of these
>     > Error in matrix inverse -- matrix singular in inv(dmatrix)
>     >
>     > and then one of these that crashes the program
>     > matrix bound exceeded -- row index too low in
>     dmatrix::operator()value was0
>     >
>     > I'm almost certain that I'm accessing the matrix elements
>     correctly and the matrix shouldn't be singular at the initial values.
>     > Is there anything else that could lead to this series of errors?
>     >
>     > The other output is
>     >  Inner f = -inf
>     > Newton raphson 1
>     > f = nan max g = nan
>     > Newton raphson 2
>     > f = nan max g = nan
>     >
>     > thanks,
>     > Mollie
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