PCASMType

Type of additive Schwarz method to use

typedef enum {PC_ASM_BASIC = 3,PC_ASM_RESTRICT = 1,PC_ASM_INTERPOLATE = 2,PC_ASM_NONE = 0} PCASMType;

 PC_ASM_BASIC - symmetric version where residuals from the ghost points are used

                and computed values in ghost regions are added together. Classical

                standard additive Schwarz

 PC_ASM_RESTRICT - residuals from ghost points are used but computed values in ghost

                   region are discarded. Default

 PC_ASM_INTERPOLATE - residuals from ghost points are not used, computed values in ghost

                      region are added back in

 PC_ASM_NONE - ghost point residuals are not used, computed ghost values are discarded

               not very good.