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Strange numerical_error says "yPlusaMulx: y and x does not have the same length"

Posted 26 lug 2012, 05:21 GMT-4 Computational Fluid Dynamics (CFD), Studies & Solvers Version 3.5a, Version 4.3 1 Reply

Ashwini Sharma
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I have a strange error message on simulating my model in Comsol, as follows:

Error:
Time 1.339427726604487e-005:
Nonlinear solver did not converge.
Internal_numerical_error
yPlusaMulx: y and x does not have the same length.
Last time step is not converged.

It occurs only when I start to work on a remote desktop. If I don't do any remote desktop, the code runs very smoothly and is able to converge. My model is a 2D transient model.

Please suggest.

Thanks in advance,
Ashwini
1 Reply Last Post 29 ago 2012, 21:45 GMT-4
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Hello Ashwini Sharma

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Argus Sun
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Posted: 1 decade ago 29 ago 2012, 21:45 GMT-4
Had the same problem with a stationary portion of a convective-diffusion problem. I think it's notation used in headers for iterative solvers. Might want to try GMRES or FGMRES.
Had the same problem with a stationary portion of a convective-diffusion problem. I think it's notation used in headers for iterative solvers. Might want to try GMRES or FGMRES.

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