ANSYS offers many types of equation solvers.  One may be interested in assessing the solver performance when running benchmarks.  The following are a list of text files that provide performance output for specific solvers:

  • EQSLV,PCG or MODOPT,LANPCG: PCG iterative solver (also with PCG Lanczos eigenvalue extraction method): jobname.PCS
  • EQSLV,SPARSE or MODOPT,LANB: Direct sparse solver (also with Block Lanczos eigenvalue extraction method): jobname.BCS
  • EQSLV,DSPARSE: Distributed sparse solver: jobname.DSP
  • MODOPT,SNODE: Supernode eigensolver: jobname.DSP

The above text files contain information on how much disk I/O was performed, how much memory was used, and how much time was spent by the equation solver.  For Distributed ANSYS runs, a breakdown per node is also provided for some information.

In ANSYS 12.0.1, also refer to the Performance Guide for very detailed information on maximizing solver performance.