simpeg.optimization.ProjectedGNCG.modifySearchDirectionBreak#
- ProjectedGNCG.modifySearchDirectionBreak(p)[source]#
Called if modifySearchDirection fails to find a descent direction.
The search direction is passed as input and this function must pass back both a new searchDirection, and if the searchDirection break has been caught.
By default, no additional work is done, and the evalFunction returns a False indicating the break was not caught.
- Parameters:
- p
numpy.ndarray The failed search direction.
- p
- Returns:
- xt
numpy.ndarray An alternative search direction to use.
- was_caughtbool
Whether the break was caught. The minimization algorithm will break early if
not was_caught.
- xt