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Please check the following page if you have not already:nTypically, the following conditions must be met for the Supernode eigensolver to be most efficient:nThe model is a good candidate for using the sparse solver in a similar static or full transient analysis (that is, the model is dominated with beams/shells or has a thin structure).nThe number of requested modes is greater than 200.nThe beginning frequency input via MODOPT is zero (or near zero).n-AniketnHow to access Ansys help linksnGuidelines for Posting on Ansys Learning Forumn