[CIG-LONG] Error running extension calculation with Gale 1.2.1.

[Henry Wichura]

Hello,

My name is Henry Wichura. I am PhD Student in the geodynamic group of  
the Institute of Geoscience, University of Potsdam.
Since one week i try to get into the "secrets" of modelling with Gale  
1.2.1. What i can say is that i am very pleased with the  
opportunities that this software offers. All the given "input.xml"  
files from the download package work fine...

But with the given "extension.xml" i have a problem. After the  
calculation of step 8 it gives an error.
The following lines are the last block of the error message i  
received from the Shell window:


[0]PETSC ERROR: Zero pivot row 965 value 1.84183e-13 tolerance  
1.91327e-13 * rowsum 0.191327!
[0]PETSC ERROR:  
------------------------------------------------------------------------
[0]PETSC ERROR: Petsc Release Version 2.3.2, Patch 8, Tue Jan  2  
14:33:59 PST 2007 HG revision: ebeddcedcc065e32fc252af32cf1d01ed4fc7a80
[0]PETSC ERROR: See docs/changes/index.html for recent updates.
[0]PETSC ERROR: See docs/faq.html for hints about trouble shooting.
[0]PETSC ERROR: See docs/index.html for manual pages.
[0]PETSC ERROR:  
------------------------------------------------------------------------
[0]PETSC ERROR: Gale-1_2_1 on a darwin8.8 named Kebnekaise.local by  
wichura Wed Mar 19 12:18:27 2008
[0]PETSC ERROR: Libraries linked from /Users/walter/petsc/lib/ 
darwin8.8.0-c-opt
[0]PETSC ERROR: Configure run at Wed Jan 17 17:23:26 2007
[0]PETSC ERROR: Configure options --prefix=/Users/walter/petsc -- 
download-mpich=1 --with-external-packages-dir=/Users/walter/ --with- 
debugging=no --with-shared=0
[0]PETSC ERROR:  
------------------------------------------------------------------------
[0]PETSC ERROR: MatLUFactorNumeric_Inode() line 1408 in src/mat/impls/ 
aij/seq/inode.c
[0]PETSC ERROR: MatLUFactorNumeric() line 2211 in src/mat/interface/ 
matrix.c
[0]PETSC ERROR: PCSetUp_ILU() line 561 in src/ksp/pc/impls/factor/ilu/ 
ilu.c
[0]PETSC ERROR: PCSetUp() line 801 in src/ksp/pc/interface/precon.c
[0]PETSC ERROR: KSPSetUp() line 234 in src/ksp/ksp/interface/itfunc.c
[0]PETSC ERROR: KSPSolve() line 338 in src/ksp/ksp/interface/itfunc.c


Can someone tell what this error means and what I can do to fix this  
problem.

Many thanks and Happy Easter
Henry Wichura