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Direct frequency response using DMP on single workstation



I need to run direct frequency response (SOL108) for a model with 3.5M dof on a Windows workstation with dual 8-core processors, 256 Gb RAM and 1Tb SSD.  Using SMP and parallel=8 it takes about 12 hours to compute 750 frequency points.  I'm looking for ways to speed p the solution significantly.  I would like to know if running this problem using DMP on the same machine with 2 or 4 cores would be any faster than SMP.  Or would the I/O overhead with a single SSD outweight any performance advantage of DMP.  Your collective experience is requested.

Bob Gordon