WARNING [4041]: RESIDUAL TOLERANCE FOR AMG IS TOO SMALL. DEFAULT VALUE # WILL BE USED

Cause

When using the AMG solver, this warning is generated when the convergence tolerance is defined too small (<1e-16).

Analysis Type

All types of analyses except for explicit dynamic analysis

Related Menu

Tools >> Option >> Analysis/Results >> Analysis Control >> Equation Solver...

Remedy

Check if the maximum number of iterations and the convergence tolerance are set to 1000 and 1e-006 respectively.  If they are not set to the default values, click the "Initialize" button at the bottom left of the dialog box to set them back to the defaults.