1 /* 2 Private context for Richardson iteration 3 */ 4 5 #ifndef __SNES_NCG_H 6 #define __SNES_NCG_H 7 #include <petsc/private/snesimpl.h> 8 #include <petsc/private/linesearchimpl.h> 9 10 typedef struct { 11 SNESNCGType type; /* Fletcher-Reeves, Polak-Ribiere-Polyak, Hestenes-Steifel, Dai-Yuan, Conjugate Descent */ 12 PetscViewer monitor; /* monitor for ncg (prints out the alpha and beta parameters at each interation) */ 13 } SNES_NCG; 14 15 #endif 16