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

 
 

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

Submitted by:  Christophe Prud'homme <prudhomm>
Submitted on:  Sun 04 Sep 2005 07:57:05 PM UTC  
 
Category: NumericSeverity: 5 - Blocker
Item Group: NoneStatus: None
Privacy: PublicAssigned to: Stéphane Del Pino <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>
Project AdministratorIn charge of this item.
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>
Project AdministratorIn charge of this item.
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>
Project Administrator

 

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Follow 3 latest changes.

Date Changed By Updated Field Previous Value => Replaced By
Sun 11 Sep 2005 10:49:11 PM UTCdelpinuxOpen/ClosedOpen=>Closed
Sun 04 Sep 2005 10:21:18 PM UTCdelpinuxSeverity4 - Important=>5 - Blocker
Sun 04 Sep 2005 10:20:19 PM UTCdelpinuxCategoryNone=>Numeric

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