One very silly suggestion: is there a possibility that your code added
a system named "Temperature" of a different type earlier than that
add_system call? If it did then it wouldn't be your get_system call
failing, it would be the add_system's get_system call.
---
Roy
On Wed, 9 Mar 2011, Tim Kroeger wrote:
> Dear libMesh team,
>
> Consider the following lines:
>
> TransientLinearImplicitSystem& tempSystem =
> equation_systems.add_system<TransientLinearImplicitSystem>("Temperature");
> equation_systems.get_system<TransientLinearImplicitSystem>("Temperature");
>
> That should work, shouldn't it? It actually works in a test code.
> However, in my application, it gives:
>
> ERROR: cannot convert system "Temperature" to requested type!
> [0]
> /home/tim/fem-libs/libMesh/libmesh-svn/libmesh//include/systems/equation_systems.h,
> line 677, compiled Mar 9 2011 at 08:40:37
> terminate called after throwing an instance of 'libMesh::LogicError'
> what(): Error in libMesh internal logic
>
> which means that the dynamic_cast fails. I can't find what is
> different in my application from the test code. I should mention that
> this problem only occurs for transient systems. Everything works well
> e.g. for LinearImplicitSystem. Also, the problem occurs only on my
> local desktop computer, not on the cluster. (Actually I only noticed
> this problem because I ran my application locally to track down a
> different bug...)
>
> Any ideas are welcome.
>
> Best Regards,
>
> Tim
>
> --
> Dr. Tim Kroeger
> CeVis -- Center of Complex Systems and Visualization
> University of Bremen [email protected]
> Universitaetsallee 29 [email protected]
> D-28359 Bremen Phone +49-421-218-59246
> Germany Fax +49-421-218-59277
>
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