bugFreeFEM3D - Bugs: bug #14402, problem with elasticity.ff on...

 
 

bug #14402: problem with elasticity.ff on debian with freefem3d-pre7-3

Submitter:  Christophe Prud'homme <prudhomm>
Submitted:  Sun 04 Sep 2005 07:57:05 PM UTC
   
 
Category:  Numeric Severity:  5 - Blocker
Item Group:  None Status:  None
Privacy:  Public Assigned to:  delpinux
Open/Closed:  Closed
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Sun 11 Sep 2005 10:49:11 PM UTC, comment #2: 

This bug was introduced while fixing a natural boundary condition bug that now is to be fixed...

Stéphane Del Pino <delpinux>
Group administrator
Sun 04 Sep 2005 10:20:19 PM UTC, comment #1: 

Thanks for the report. The problem comes from the incomplete Choleski preconditioner. The problem is not related to the debian version ... If you use the option "krylov(precond=diagonal)", it does not crash anymore.

Stéphane Del Pino <delpinux>
Group administrator
Sun 04 Sep 2005 07:57:05 PM UTC, original submission:  

Steph

here is what I got when running the example elastificity.ff
on the latest debian version of ff3d

ff3d elasticity.ff                                                                                      /tmp
Parsing the file ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ done
Treating data
Building Mesh ... Starting connectivity builder
- Storing cell to cells connectivity
Connectivity builder finished
done
Solving Problem:

        unknowns: List of unknowns

        Problem:
./VariationalFormulaExpression.hpp:79: Not implemented

Problem:
PDE
Solving ...
reserve
Discretizing the PDE Problem ... Assembling matrix
done
Assembling cost: Time: 9s       CPU Time: 7.83s
Assembling Second Member
done
Discretizing Boundary Conditions
Second Member Modification
Matrix Modification
done
Matrix copy: Time: 3s   CPU Time: 2.38s
Solving
Solving the linear system
pcg: iteration 1 gcg= nan
pcg: iteration 2 gcg= nan
pcg: iteration 3 gcg= nan
pcg: iteration 4 gcg= nan
pcg: iteration 5 gcg= nan
pcg: iteration 6 gcg= nan

Christophe Prud'homme <prudhomm>
Group administrator

 

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Follow 3 latest changes.

Date Changed by Updated Field Previous Value => Replaced by
2005-09-11 delpinux Open/ClosedOpen Closed
2005-09-04 delpinux Severity4 - Important 5 - Blocker
2005-09-04 delpinux CategoryNone Numeric

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