1 /* $Id: is.h,v 1.28 1996/08/04 23:14:42 bsmith Exp bsmith $ */ 2 3 /* 4 An index set is a genralization of a subset of integers. They are used 5 for defining scatters and gathers. 6 */ 7 #if !defined(__IS_PACKAGE) 8 #define __IS_PACKAGE 9 #include "petsc.h" 10 11 typedef enum {IS_SEQ=0, IS_STRIDE_SEQ=1, IS_BLOCK_SEQ = 2} ISType; 12 13 #define IS_COOKIE PETSC_COOKIE+2 14 15 typedef struct _IS* IS; 16 17 extern int ISCreateSeq(MPI_Comm,int,int *,IS *); 18 extern int ISCreateBlockSeq(MPI_Comm,int,int,int *,IS *); 19 extern int ISCreateStrideSeq(MPI_Comm,int,int,int,IS *); 20 21 extern int ISDestroy(IS); 22 23 extern int ISSetPermutation(IS); 24 extern int ISPermutation(IS,PetscTruth*); 25 extern int ISSetIdentity(IS); 26 extern int ISIdentity(IS,PetscTruth*); 27 28 extern int ISGetIndices(IS,int **); 29 extern int ISRestoreIndices(IS,int **); 30 extern int ISGetSize(IS,int *); 31 extern int ISInvertPermutation(IS,IS*); 32 extern int ISView(IS,Viewer); 33 extern int ISEqual(IS, IS, PetscTruth *); 34 extern int ISSort(IS); 35 extern int ISSorted(IS, PetscTruth *); 36 37 extern int ISBlockGetIndices(IS,int **); 38 extern int ISBlockRestoreIndices(IS,int **); 39 extern int ISBlockGetBlockSize(IS,int **); 40 41 extern int ISStrideGetInfo(IS,int *,int*); 42 43 #endif 44 45 46