Why does a modal analysis with a point mass solve in WB Simulation 10.0, but exit with a memory error in v11.0?

The reason why it solves in V10 and not V11: CE's are not the issue. They are the same in both versions. In V10, when you do a modal analysis using the WB "iterative" solver, we used the ANSYS subspace solver. At V11, the same WB settings use the new ANSYS lanPCG solver. For some reason on this problem, the LANPCG solver is using way more memory than subspace. Using subspace, the max scratch memory used was about 1GB. Using LANPCG, it needed about 5GB (I ran the job on a linux64 machine).

You can get the model to solve in V11 by adding a command snippet with the lines below:


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