The method works by recursively slicing the model in half. By default, the domain decomposition in MPP LS-DYNA is done with the recursive coordinate bisection method. In the opposite scenario in which the inelastic behavior takes place in a small number of processors, these processors will need more time to complete the stress update causing the remaining processors (that process the elastic region) to wait, and thereby creating a bottleneck. Therefore, it would be prudent to decompose the domain into parallel strips that run perpendicularly to the crash front so that each processor has a similar number of elements in the crash front. For example, in a car crash analysis, inelastic deformation is expected to occur at the crash front region. A decomposition that partitions the region of the expected inelastic behavior among the available processors, if possible, can benefit the performance of the analysis. This is especially true when material inelasticity occurs since the modeling of the inelastic behavior is in general more computationally demanding (i.e., involves a higher number of operations) than the elastic behavior. It does not store any personal data.A good domain decomposition can improve the efficiency of an MPP analysis. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies.
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