Ansys Learning Forum › Forums › Installation and Licensing › Ansys Free Student Software › DMP and SMP › Reply To: DMP and SMP
DMP calculation is generally faster for the numerical calculations and is the default recommendation.
A drawback to DMP can be the amount of time it takes to merge result files. This result file merge time is often small compated to calculation time of large modes that may take hours or days to solve.
This is why it is important to have fast disk systems, usually SSDs or HPC file systems.
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There are two really good sections in the Ansys Help that I consider prerequisite reading when you get some time:
Mechanical APDL > Performance Guide Performance Guide (ansys.com)
and
Mechanical APDL > Parallel Processing Guide. Parallel Processing Guide (ansys.com)