1421d9b32SPeter Brune #ifndef _SNES_FASIMPLS 2421d9b32SPeter Brune #define _SNES_FASIMPLS 3421d9b32SPeter Brune 4421d9b32SPeter Brune #include <private/snesimpl.h> 5*ee78dd50SPeter Brune #include <private/dmimpl.h> 607144faaSPeter Brune #include <petscsnesfas.h> 7421d9b32SPeter Brune 8421d9b32SPeter Brune typedef struct { 9421d9b32SPeter Brune 10421d9b32SPeter Brune /* flags for knowing the global place of this FAS object */ 11421d9b32SPeter Brune PetscInt level; /* level = 0 coarsest level */ 12421d9b32SPeter Brune PetscInt levels; /* if level + 1 = levels; we're the last turtle */ 13421d9b32SPeter Brune 14646217ecSPeter Brune PetscViewer monitor; /* debuggging output for FAS */ 15421d9b32SPeter Brune 16421d9b32SPeter Brune /* smoothing objects */ 17*ee78dd50SPeter Brune SNES upsmooth; /* the SNES for presmoothing */ 18*ee78dd50SPeter Brune SNES downsmooth; /* the SNES for postsmoothing */ 19421d9b32SPeter Brune 20421d9b32SPeter Brune /* coarse grid correction objects */ 216273346dSPeter Brune SNES next; /* the SNES instance for the next coarser level in the hierarchy */ 226273346dSPeter Brune SNES previous; /* the SNES instance for the next finer level in the hierarchy */ 23421d9b32SPeter Brune Mat interpolate; /* interpolation */ 24efe1f98aSPeter Brune Mat inject; /* injection operator (unscaled) */ 25421d9b32SPeter Brune Mat restrct; /* restriction operator */ 26421d9b32SPeter Brune Vec rscale; /* the pointwise scaling of the restriction operator */ 27421d9b32SPeter Brune 28*ee78dd50SPeter Brune /* method parameters */ 29*ee78dd50SPeter Brune PetscInt n_cycles; /* number of cycles on this level */ 3007144faaSPeter Brune SNESFASType fastype; /* FAS type */ 31*ee78dd50SPeter Brune PetscInt max_up_it; /* number of pre-smooths */ 32*ee78dd50SPeter Brune PetscInt max_down_it; /* number of post-smooth cycles */ 33d1adcc6fSPeter Brune PetscBool usedmfornumberoflevels; /* uses a DM to generate a number of the levels */ 346273346dSPeter Brune 356273346dSPeter Brune /* Galerkin FAS state */ 366273346dSPeter Brune PetscBool galerkin; /* use Galerkin formation of the coarse problem */ 376273346dSPeter Brune Vec Xg; /* Galerkin solution projection */ 386273346dSPeter Brune Vec Fg; /* Galerkin function projection */ 396273346dSPeter Brune 40421d9b32SPeter Brune } SNES_FAS; 41421d9b32SPeter Brune 42421d9b32SPeter Brune #endif 43