1 #if !defined(_PETSCDMDATYPES_H) 2 #define _PETSCDMDATYPES_H 3 4 #include <petscdmtypes.h> 5 6 /*E 7 DMDAStencilType - Determines if the stencil extends only along the coordinate directions, or also 8 to the northeast, northwest etc 9 10 Level: beginner 11 12 .seealso: DMDACreate1d(), DMDACreate2d(), DMDACreate3d(), DMDACreate(), DMDASetStencilType() 13 E*/ 14 typedef enum { DMDA_STENCIL_STAR,DMDA_STENCIL_BOX } DMDAStencilType; 15 16 /*E 17 DMDAInterpolationType - Defines the type of interpolation that will be returned by 18 DMCreateInterpolation. 19 20 Level: beginner 21 22 .seealso: DMDACreate1d(), DMDACreate2d(), DMDACreate3d(), DMCreateInterpolation(), DMDASetInterpolationType(), DMDACreate() 23 E*/ 24 typedef enum { DMDA_Q0, DMDA_Q1 } DMDAInterpolationType; 25 26 /*E 27 DMDAElementType - Defines the type of elements that will be returned by 28 DMDAGetElements() 29 30 Level: beginner 31 32 .seealso: DMDACreate1d(), DMDACreate2d(), DMDACreate3d(), DMCreateInterpolation(), DMDASetInterpolationType(), 33 DMDASetElementType(), DMDAGetElements(), DMDARestoreElements(), DMDACreate() 34 E*/ 35 typedef enum { DMDA_ELEMENT_P1, DMDA_ELEMENT_Q1 } DMDAElementType; 36 37 /*S 38 DMDALocalInfo - C struct that contains information about a structured grid and a processors logical 39 location in it. 40 41 Level: beginner 42 43 Concepts: distributed array 44 45 Fortran Notes - This should be declared as 46 $ DMDALocalInfo :: info(DMDA_LOCAL_INFO_SIZE) 47 and the entries accessed via 48 $ info(DMDA_LOCAL_INFO_DIM) 49 $ info(DMDA_LOCAL_INFO_DOF) etc. 50 The entries bx,by,bz, st, and da are not accessible from Fortran. 51 52 .seealso: DMDACreate1d(), DMDACreate2d(), DMDACreate3d(), DMDestroy(), DM, DMDAGetLocalInfo(), DMDAGetInfo() 53 S*/ 54 typedef struct { 55 PetscInt dim,dof,sw; 56 PetscInt mx,my,mz; /* global number of grid points in each direction */ 57 PetscInt xs,ys,zs; /* starting point of this processor, excluding ghosts */ 58 PetscInt xm,ym,zm; /* number of grid points on this processor, excluding ghosts */ 59 PetscInt gxs,gys,gzs; /* starting point of this processor including ghosts */ 60 PetscInt gxm,gym,gzm; /* number of grid points on this processor including ghosts */ 61 DMBoundaryType bx,by,bz; /* type of ghost nodes at boundary */ 62 DMDAStencilType st; 63 DM da; 64 } DMDALocalInfo; 65 66 #endif 67