The warning message are:

  • ''The PCG Lanczos eigensolver has detected that element 1257666 has zero mass.  Please check the density material property (or alternative mass definition if appropriate) for this element.  You should check the solution carefully and if necessary you may want to either use a Lev_Diff value equal to 5 on the PCGOPT command or switch to the Block Lanczos eigensolver (MODOPT,LANB). ''

  • ''Material number 6 (used by element 1257636) should normally have at least one MP or one TB type command associated with it.  The output of energy by the material may not be available.''