[CIG-SHORT] Restart

[Charles Williams]

Hi Birendra,

In addition to what Brad said, we wouldn't be implementing something like what you suggest anyway, since it would only work for purely elastic materials.  For any other type of material, there is important information carried in the state variables.  Just knowing the displacements wouldn't be enough.

Cheers,
Charles


On 17/09/2012, at 5:40 AM, Birendra jha wrote:

> Hi
>  
> 1. Is it possible to restart a pylith run from where it stopped? I only have displacements at every point (vtk output of the problem.formulation.output.domain). Can I use something like following, but displacements in place of stress:
>  
> [pylithapp.timedependent.materials.upper_crust]
> 
> db_initial_stress = spatialdata.spatialdb.SimpleDB
> 
> db_initial_stress.iohandler.filename = spatialdb/initial_stress.spatialdb
> 
>  
> 2. Is there something like db_initial_displacement for each material region?
>  
> 3. Right now I have displacements for entire domain together. Can I get nodal displacements by material region (to be used above for restart)?
> Following doesn't work because elasticisotropic3d.outputmatelastic.vertex_data_fields does not exist:
> [pylithapp.timedependent.materials.elastic.output]
> 
> output_freq = time_step
> 
> time_step = 1.0*yr
> 
> vertex_data_fields = [displacements]
> 
>   
> Any suggestions on how to restart?
> 
>   
> Thanks and regards
> Birendra
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Charles A. Williams
Scientist
GNS Science
1 Fairway Drive, Avalon
PO Box 30368
Lower Hutt  5040
New Zealand
ph (office): 0064-4570-4566
fax (office): 0064-4570-4600
C.Williams at gns.cri.nz

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