Author Topic: Problem in I-V characteristics!  (Read 3744 times)

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Offline nooneknows08

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Problem in I-V characteristics!
« on: June 26, 2010, 10:19 »
When i run the following script it gives error exceeded max. no of iterations. Please help me find a solution

Offline jdgayles16

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Re: Problem in I-V characteristics!
« Reply #1 on: June 26, 2010, 22:00 »
I believe if you change the  line max_steps that will fix your problem. Currently you have the max iterations at 100 and usually when i exceed the 100 steps for my systems, I have set up my geometry incorrectly.


the line is under iteration control parameters in the vnl

and it look like this in your script.py file

iteration_control_parameters = iterationControlParameters(
    tolerance = 1e-005,
    criterion = IterationControl.TotalEnergy,
    max_steps = 100
)
 


Offline Anders Blom

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Re: Problem in I-V characteristics!
« Reply #2 on: June 27, 2010, 17:26 »
This system will never converge as the geometry makes no sense at all.