The fact that MPP has trouble, and SMP does not, indicates you should consider a tweak to the contact definition and/or the way the model is decomposed for MPP.
Well, let me add one more thing ... a reduction in time step scale factor (TSSFAC in *CONTROL_TIMESTEP) together with use of a double precision executable may, in themselves, resolve the instability.
Decomposition: Results of MPP can vary (slightly) depending on how the model is decomposed (how it's split among the processors). Use *CONTROL_MPP_DECOMPOSITION_SHOW to view the decomposition of the model. Does one of the decomposition boundaries coincide with the problematic area? There are variable *CONTROL_MPP_DECOMPOSITION_option commands to alter the decomposition.
Contact: Provide an image of your *CONTACT input for the contact in question and provide a narrative of what's on the SURFA and SURFB sides of that contact. In that narrative, specify what element formulations are employed.
Please Login to Report Topic
Please Login to Share Feed
You are navigating away from the AIS Discovery experience