Elmer Discussion Forum

Hi raback, first of all thank you for your reply and sorry for my late response. I tried a few things and made a few thoughts on your explanation and now I really think, the problem has to be something else. I didn't manage to write the vector potential A into either an ElmerPost-file or an vtu-file...

Hi there, I've been working a lot with Elmers WhitneyAVSolver in the last year and it does a great job for what I need. But there is still one thing I really need to know because it keeps me from publishing a paper based on Elmer sim. results. Therefore I really hope somebody can help me... This is ...

Hi there, I think I discovered an error in the src-file DirectSolve.f90 (Elmer Rev: 6509M). At least my compiler (ifort version 14.0.1) throws an error message when I have warning mesages on. ! DirectSolve.f90: SUBROUTINE ComplexBandSolver( A,x,b, Free_fact ) ... REAL(KIND=dp) :: x(*),b(*) ... CALL ...

Hi there, I tried to find out whether there are memory leaks or memory allocation errors. To do so I recompiled fem with debug flags and investigated the code with Intel Inspector , a memory profiler. Surprisingly Intel Inspector found a list of memory issues which are listed below P1 Missing alloca...

Hi there, I made a little investigation and tried to find out what is going on. 1) By monitoring the system I now can tell that each core can address the whole RAM space. Still the solver succeeds only with a multi-core mpi run. In the attached logfile ( log.log ) you can see the solver output befor...

Hi, thanks for your reply. I doubt that I fully understood how the memory sharing works... :roll: I have two CPUs, each of which has 8 physical cores. I always thought these 8 cores share 128/2CPUs=64GB of memory. If I look at my little test it seems, that the maximum of memory space a single core c...

Hi there, I wanted to contribute with a very simple example from magnetodynamics. Problem description: A uniformly magnetized sphere lies in a cylinder filled with air. The magnetic flux density and the magnetic field strength is computed. The solution to the magnetic field strength inside the spher...

Hi there, I did a performance and convergence test with the WhitneyAVSolver. My Machine is a HPZ820 workstation with 16 CPU-cores (32 with multithreading) and a total amount of 128GB RAM. Problem description: A sphere with uniform magnetization lies in a cylinder filled with air. The magnetic flux d...

Hi peter, it seems that this was not the only problem. In the following code snippet starting from line 4630 in the MagnetoDynamics.src file there are 5 errors: IF ( ASSOCIATED(MFS) ) THEN BodyForce => GetBodyForce() FoundMagnetization = .FALSE. IF(ASSOCIATED(BodyForce)) THEN Magnetization(1,1:n) = ...

Hi, Do you think, that it is possible, that this is a bug? I thought about it: Since the B-field is derived from the vector potential A and the B-field looks really correct to me I think the WhitneyAVSolver works well. I assume, that the H-field is derived from the B-field since they are connected v...