Author Topic: Reaction forces with unblocked domains  (Read 4314 times)

blackbird

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Reaction forces with unblocked domains
« on: February 27, 2015, 06:19:07 AM »
Dear FEAP Admin.

I calculate some nonlinear FE with parallel feap (8.3 + petsc3.2-p7). For solving the (unsymmetric) tangent I used to use the superlu. Therefore, in the serial input file i get my parallel input with

  OUTDomains,UNBLocked

now it turns out that everytime i use this, the TPLOT-SUMS command is not working anymore. All reactions output there are 0. Also the REAC give 0 values in this case. I made a test case of a linear elastic model and compared jabobian iterative solver with superlu - while jacobian shows reactions, all of them are 0 for the superlu solution.

Do you know this issue? Do you know a way around (i really need these reactions but cant use solution method for a symmetric tangent)?

best christian