## 2.5. Parallelization of Euler-Lagrange Coupling Interactions

Aside from handling the decomposition of unstructured parts, the automatic parallel decomposition algorithm can also handle the decomposition of Euler parts, Euler Ideal Gas as well as Euler Multi-material. This facilitates the decomposition of complicated Euler/Lagrange coupled models; the user only needs to define the number of tasks over which the model should be assigned and Autodyn will automatically produce a decomposition configuration with good load balancing qualities and minimal inter-processor communication.

To further enhance the efficiency of coupled calculations the sub-domains of the FE structure will be placed on the same processor as the Euler sub-domains located in the same geometric space. This decreases the necessary inter-processor communication for the coupling calculations.

Table 2.1: 8 CPU Automatic Decomposition of a Casing Fragmentation Analysis

Note: The multi-material Euler part should not be joined to other Euler Parts.

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