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Linear Solver

Posted 15 juil. 2010, 10:42 UTC−4 2 Replies

Pekir Joseph
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Hi:

In comsol 3.5a, the linear solver best used for 3D applications was the GMRES solver.
In comsol 4.0 this solver does not exist. Available solvers in comsol 4.0 are:
Mumps
Paridos
Spoodles.

Which of one these solvers are best used for complex 3D models?

Also can someone explain the difference between these solvers as
the user manual does not do that.

Thanks
2 Replies Last Post 15 juil. 2010, 11:49 UTC−4
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 2 decades ago 15 juil. 2010, 11:30 UTC−4
Hi

As usual it all depdends. I mostly trust the default solver COMSOL proposes, then if I have doubts then only I try the others
Good luck
Ivar
Hi As usual it all depdends. I mostly trust the default solver COMSOL proposes, then if I have doubts then only I try the others Good luck Ivar
Pekir Joseph
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Posted: 2 decades ago 15 juil. 2010, 11:49 UTC−4
Hi:

Thank you for your reply.

When I run the solve the 3D model, it gets stuck around 7 GB.
Could that be because of the solver or is that a problem concerning
the meshing?

Thanks

PJ
Hi: Thank you for your reply. When I run the solve the 3D model, it gets stuck around 7 GB. Could that be because of the solver or is that a problem concerning the meshing? Thanks PJ

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