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Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

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Solver Error

Posted 2010/06/07 1:19 GMT-4 Modeling Tools & Definitions, Studies & Solvers Version 4.0 5 Replies

Severin Eisner
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Hi,

i got the following error:

NaN or Inf found when solving linear system using MUMPS (comsol 4.0)

Does anybody know why this error message can happen and what do I have to adjust in the settings to solve it?

Thanks a lot for your time,

Severin
5 Replies Last Post 2010/11/26 17:45 GMT-5
Tyler Bevan
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Posted: 2 decades ago 2010/06/07 20:07 GMT-4
Hi,

I am getting the same error when running an equation in COMSOL 4.0. The same equation works fine in COMSOL 3.5.

I too would like to know how to correct for this error.

Thank you,

Tyler
Hi, I am getting the same error when running an equation in COMSOL 4.0. The same equation works fine in COMSOL 3.5. I too would like to know how to correct for this error. Thank you, Tyler
Severin Eisner
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Posted: 2 decades ago 2010/06/10 12:05 GMT-4
Hi Tyler,

i could fix the problem in defining my mesh size differently to the model I have used in Comsol 3.5a.

I also changed the setup of my problem, BC, and finally everything runs through and i get the same results as in 3.5a.

Severin

Hi Tyler, i could fix the problem in defining my mesh size differently to the model I have used in Comsol 3.5a. I also changed the setup of my problem, BC, and finally everything runs through and i get the same results as in 3.5a. Severin
kamiar bashirpour
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Posted: 2 decades ago 2010/10/11 4:39 GMT-4

hi



i face with err below when I want to solve with static - parametric segregated solver. whats the mean ?
matrix has zero on diagonal!
can anybody help me?
tnx,
kamiar
hi i face with err below when I want to solve with static - parametric segregated solver. whats the mean ? matrix has zero on diagonal! can anybody help me? tnx, kamiar
kamiar bashirpour
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Posted: 2 decades ago 2010/10/11 4:41 GMT-4

hi



i face with err below when I want to solve with static - parametric segregated solver. whats the mean ?
matrix has zero on diagonal!
can anybody help me?
tnx,
kamiar
hi i face with err below when I want to solve with static - parametric segregated solver. whats the mean ? matrix has zero on diagonal! can anybody help me? tnx, kamiar
Bakkaoui Otmane
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Posted: 1 decade ago 2010/11/26 17:45 GMT-5
How can i plot the wave propagation in the recpetion antenna ?
How can i plot the wave propagation in the recpetion antenna ?

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