A COMPARISON OF FAC AND PCG METHODS FOR SOLVING COMPOSITE GRID PROBLEMS.

Authors :: Heroux, Michael A.
Thomas, J. W.
Source :: Communications in Applied Numerical Methods; Sep1992, Vol. 8 Issue 9, p573-583, 11p
Publication Year :: 1992
Abstract: The fast adaptive composite grid method (FAC) is a multi-level adaptive method for the discretization and solution of partial differential equations. This paper compares the speed of solution of the resulting discrete equations by the FAC algorithm and a preconditioned conjugate gradient scheme. Comparisons and information concerning the solutions are given for several model problems. [ABSTRACT FROM AUTHOR]