I have created a 3D FE model in Abaqus. It contains two bodies in contact with some particles between them. It has about 3m elements (C3D4) and 0.55m nodes. When I run it on a server with 20 cores, it gives me an error:"This model is too large to run on a single domain. The number of nodes exceeds 16777215. If the model supports distributed parallelization, use parallel execution across several hosts. Otherwise, the model size needs to be reduced.". What can I do to get it to run? I cannot make the model smaller or decrease the number of elements and I think because I have defined a lot of contacts, the number of internal nodes is very high. I am also running it on a server with 20 cores using parallelization.