/*
   This is the main PETSc include file (for C and C++).  It is included by all
   other PETSc include files, so it almost never has to be specifically included.
*/
#if !defined(__PETSC_H)
#define __PETSC_H
/* ========================================================================== */
/* 
   This facilitates using C version of PETSc from C++
*/

#if defined(PETSC_USE_EXTERN_CXX) && defined(__cplusplus)
#define PETSC_EXTERN_CXX_BEGIN extern "C" {
#define PETSC_EXTERN_CXX_END  }
#else
#define PETSC_EXTERN_CXX_BEGIN
#define PETSC_EXTERN_CXX_END
#endif
/* ========================================================================== */
/* 
   Current PETSc version number and release date
*/
#include "petscversion.h"

/* ========================================================================== */
/* 
   petscconf.h is contained in bmake/${PETSC_ARCH}/petscconf.h it is 
   found automatically by the compiler due to the -I${PETSC_DIR}/bmake/${PETSC_ARCH}
   in the bmake/common_variables definition of PETSC_INCLUDE
*/
#include "petscconf.h"
/*
   Fixes for configure time choices which impact our interface. Currently only
   calling conventions and extra compiler checking falls under this category.
*/
#if !defined(PETSC_PRINTF_FORMAT_CHECK)
#define PETSC_PRINTF_FORMAT_CHECK(a,b)
#endif
#if !defined (PETSC_STDCALL)
#define PETSC_STDCALL
#endif
#if !defined (PETSC_TEMPLATE)
#define PETSC_TEMPLATE
#endif

/* ========================================================================== */

#include <stdio.h>
/*
    Defines the interface to MPI allowing the use of all MPI functions.
*/
#include "mpi.h"

/*
    All PETSc C functions return this error code, it is the final argument of
   all Fortran subroutines
*/
typedef long long PetscErrorCode;
typedef int PetscCookie;
typedef int PetscEvent;

/*
    Declare extern C stuff after incuding external header files
*/

PETSC_EXTERN_CXX_BEGIN

/*
    EXTERN indicates a PETSc function defined elsewhere
*/
#if !defined(EXTERN)
#define EXTERN extern
#endif

/*
    Defines some elementary mathematics functions and constants.
*/
#include "petscmath.h"

/*
       Basic PETSc constants
*/

/*E
    PetscTruth - Logical variable. Actually an integer

   Level: beginner

E*/
typedef enum { PETSC_FALSE,PETSC_TRUE } PetscTruth;

/*M
    PETSC_FALSE - False value of PetscTruth

    Level: beginner

    Note: Zero integer

.seealso: PetscTruth
M*/

/*M
    PETSC_TRUE - True value of PetscTruth

    Level: beginner

    Note: Nonzero integer

.seealso: PetscTruth
M*/

/*M
    PETSC_YES - Alias for PETSC_TRUE

    Level: beginner

    Note: Zero integer

.seealso: PetscTruth
M*/

/*M
    PETSC_NO - Alias for PETSC_FALSE

    Level: beginner

    Note: Nonzero integer

.seealso: PetscTruth
M*/

/*M
    PETSC_NULL - standard way of passing in a null or array or pointer

   Level: beginner

   Notes: accepted by many PETSc functions to not set a parameter and instead use
          some default

          This macro does not exist in Fortran; you must use PETSC_NULL_INTEGER, 
          PETSC_NULL_DOUBLE_PRECISION etc

.seealso: PETSC_DECIDE, PETSC_DEFAULT, PETSC_IGNORE, PETSC_DETERMINE

M*/
#define PETSC_NULL           0

/*M
    PETSC_DECIDE - standard way of passing in integer or floating point parameter
       where you wish PETSc to use the default.

   Level: beginner

.seealso: PETSC_NULL, PETSC_DEFAULT, PETSC_IGNORE, PETSC_DETERMINE

M*/
#define PETSC_DECIDE         -1

/*M
    PETSC_DEFAULT - standard way of passing in integer or floating point parameter
       where you wish PETSc to use the default.

   Level: beginner

.seealso: PETSC_DECIDE, PETSC_NULL, PETSC_IGNORE, PETSC_DETERMINE

M*/
#define PETSC_DEFAULT        -2

#define PETSC_YES            PETSC_TRUE
#define PETSC_NO             PETSC_FALSE

/*M
    PETSC_IGNORE - same as PETSC_NULL, means PETSc will ignore this argument

   Level: beginner

   Notes: accepted by many PETSc functions to not set a parameter and instead use
          some default

          This macro does not exist in Fortran; you must use PETSC_NULL_INTEGER, 
          PETSC_NULL_DOUBLE_PRECISION etc

.seealso: PETSC_DECIDE, PETSC_DEFAULT, PETSC_NULL, PETSC_DETERMINE

M*/
#define PETSC_IGNORE         PETSC_NULL

/*M
    PETSC_DETERMINE - standard way of passing in integer or floating point parameter
       where you wish PETSc to compute the required value.

   Level: beginner

.seealso: PETSC_DECIDE, PETSC_DEFAULT, PETSC_IGNORE, PETSC_NULL, VecSetSizes()

M*/
#define PETSC_DETERMINE      PETSC_DECIDE

/*M
    PETSC_COMM_WORLD - a duplicate of the MPI_COMM_WORLD communicator which represents
           all the processs

   Level: beginner

   Notes: PETSC_COMM_WORLD and MPI_COMM_WORLD are equivalent except that passing MPI_COMM_WORLD
          into PETSc object constructors will result in using more MPI resources since an MPI_Comm_dup()
          will be done on it internally. We recommend always using PETSC_COMM_WORLD

.seealso: PETSC_COMM_SELF

M*/
extern MPI_Comm   PETSC_COMM_WORLD;

/*M
    PETSC_COMM_SELF - a duplicate of the MPI_COMM_SELF communicator which represents
           the current process

   Level: beginner

   Notes: PETSC_COMM_SELF and MPI_COMM_SELF are equivalent except that passint MPI_COMM_SELF
          into PETSc object constructors will result in using more MPI resources since an MPI_Comm_dup()
          will be done on it internally. We recommend always using PETSC_COMM_SELF

.seealso: PETSC_COMM_WORLD

M*/
extern MPI_Comm   PETSC_COMM_SELF;

extern PetscTruth PetscInitializeCalled;
EXTERN PetscErrorCode        PetscSetCommWorld(MPI_Comm);
EXTERN PetscErrorCode        PetscSetHelpVersionFunctions(PetscErrorCode (*)(MPI_Comm),PetscErrorCode (*)(MPI_Comm));
EXTERN PetscErrorCode        PetscCommDuplicate(MPI_Comm,MPI_Comm*,int*);
EXTERN PetscErrorCode        PetscCommDestroy(MPI_Comm*);

/*MC
   PetscMalloc - Allocates memory

   Input Parameter:
.  m - number of bytes to allocate

   Output Parameter:
.  result - memory allocated

   Synopsis:
   PetscErrorCode PetscMalloc(size_t m,void **result)

   Level: beginner

   Notes: Memory is always allocated at least double aligned

.seealso: PetscFree(), PetscNew()

  Concepts: memory allocation

M*/
#define PetscMalloc(a,b)     (*PetscTrMalloc)((a),__LINE__,__FUNCT__,__FILE__,__SDIR__,(void**)(b))
/*MC
   PetscNew - Allocates memory of a particular type

   Input Parameter:
. type - structure name of space to be allocated. Memory of size sizeof(type) is allocated

   Output Parameter:
.  result - memory allocated

   Synopsis:
   PetscErrorCode PetscNew(struct type,((type *))result)

   Level: beginner

.seealso: PetscFree(), PetscMalloc()

  Concepts: memory allocation

M*/
#define PetscNew(A,b)        PetscMalloc(sizeof(A),(b))
/*MC
   PetscFree - Frees memory

   Input Parameter:
.   memory - memory to free

   Synopsis:
   PetscErrorCode PetscFree(void *memory)

   Level: beginner

   Notes: Memory must have been obtained with PetscNew() or PetscMalloc()

.seealso: PetscNew(), PetscMalloc()

  Concepts: memory allocation

M*/
#define PetscFree(a)         (*PetscTrFree)((a),__LINE__,__FUNCT__,__FILE__,__SDIR__)
EXTERN PetscErrorCode  (*PetscTrMalloc)(size_t,int,const char[],const char[],const char[],void**);
EXTERN PetscErrorCode  (*PetscTrFree)(void*,int,const char[],const char[],const char[]);
EXTERN PetscErrorCode  PetscSetMalloc(PetscErrorCode (*)(size_t,int,const char[],const char[],const char[],void**),PetscErrorCode (*)(void*,int,const char[],const char[],const char[]));
EXTERN PetscErrorCode  PetscClearMalloc(void);

/*
   Routines for tracing memory corruption/bleeding with default PETSc 
   memory allocation
*/
EXTERN PetscErrorCode   PetscTrDump(FILE *);
EXTERN PetscErrorCode   PetscTrSpace(PetscLogDouble *,PetscLogDouble *,PetscLogDouble *);
EXTERN PetscErrorCode   PetscTrValid(int,const char[],const char[],const char[]);
EXTERN PetscErrorCode   PetscTrDebug(PetscTruth);
EXTERN PetscErrorCode   PetscTrLog(void);
EXTERN PetscErrorCode   PetscTrLogDump(FILE *);
EXTERN PetscErrorCode   PetscGetResidentSetSize(PetscLogDouble *);

/*
    Variable type where we stash PETSc object pointers in Fortran.
    Assumes that sizeof(long) == sizeof(void*)which is true on 
    all machines that we know.
*/     
#define PetscFortranAddr   long

/*E
    PetscDataType - Used for handling different basic data types.

   Level: beginner

.seealso: PetscBinaryRead(), PetscBinaryWrite(), PetscDataTypeToMPIDataType(),
          PetscDataTypeGetSize(), PetscDataTypeGetName()

E*/
typedef enum {PETSC_INT = 0,PETSC_DOUBLE = 1,PETSC_COMPLEX = 2,
              PETSC_LONG =3 ,PETSC_SHORT = 4,PETSC_FLOAT = 5,
              PETSC_CHAR = 6,PETSC_LOGICAL = 7} PetscDataType;
#if defined(PETSC_USE_COMPLEX)
#define PETSC_SCALAR PETSC_COMPLEX
#else
#if defined(PETSC_USE_SINGLE)
#define PETSC_SCALAR PETSC_FLOAT
#else
#define PETSC_SCALAR PETSC_DOUBLE
#endif
#endif
#if defined(PETSC_USE_SINGLE)
#define PETSC_REAL PETSC_FLOAT
#else
#define PETSC_REAL PETSC_DOUBLE
#endif
#define PETSC_FORTRANADDR PETSC_LONG

EXTERN PetscErrorCode PetscDataTypeToMPIDataType(PetscDataType,MPI_Datatype*);
EXTERN PetscErrorCode PetscDataTypeGetSize(PetscDataType,int*);
EXTERN PetscErrorCode PetscDataTypeGetName(PetscDataType,const char*[]);

/*
    Basic memory and string operations. These are usually simple wrappers
   around the basic Unix system calls, but a few of them have additional
   functionality and/or error checking.
*/
EXTERN PetscErrorCode   PetscMemcpy(void*,const void *,size_t);
EXTERN PetscErrorCode   PetscBitMemcpy(void*,int,const void*,int,int,PetscDataType);
EXTERN PetscErrorCode   PetscMemmove(void*,void *,size_t);
EXTERN PetscErrorCode   PetscMemzero(void*,size_t);
EXTERN PetscErrorCode   PetscMemcmp(const void*,const void*,size_t,PetscTruth *);
EXTERN PetscErrorCode   PetscStrlen(const char[],size_t*);
EXTERN PetscErrorCode   PetscStrcmp(const char[],const char[],PetscTruth *);
EXTERN PetscErrorCode   PetscStrgrt(const char[],const char[],PetscTruth *);
EXTERN PetscErrorCode   PetscStrcasecmp(const char[],const char[],PetscTruth*);
EXTERN PetscErrorCode   PetscStrncmp(const char[],const char[],size_t,PetscTruth*);
EXTERN PetscErrorCode   PetscStrcpy(char[],const char[]);
EXTERN PetscErrorCode   PetscStrcat(char[],const char[]);
EXTERN PetscErrorCode   PetscStrncat(char[],const char[],size_t);
EXTERN PetscErrorCode   PetscStrncpy(char[],const char[],size_t);
EXTERN PetscErrorCode   PetscStrchr(const char[],char,char *[]);
EXTERN PetscErrorCode   PetscStrtolower(char[]);
EXTERN PetscErrorCode   PetscStrrchr(const char[],char,char *[]);
EXTERN PetscErrorCode   PetscStrstr(const char[],const char[],char *[]);
EXTERN PetscErrorCode   PetscStrallocpy(const char[],char *[]);
EXTERN PetscErrorCode   PetscStrreplace(MPI_Comm,const char[],char[],size_t);
#define      PetscStrfree(a) ((a) ? PetscFree(a) : 0) 
/*S
    PetscToken - 'Token' used for managing tokenizing strings

  Level: intermediate

.seealso: PetscTokenCreate(), PetscTokenFind(), PetscTokenDestroy()
S*/
typedef struct {char token;char *array;char *current;} PetscToken;

EXTERN PetscErrorCode   PetscTokenCreate(const char[],const char,PetscToken**);
EXTERN PetscErrorCode   PetscTokenFind(PetscToken*,char *[]);
EXTERN PetscErrorCode   PetscTokenDestroy(PetscToken*);

/*
   These are  MPI operations for MPI_Allreduce() etc
*/
EXTERN MPI_Op PetscMaxSum_Op;
#if defined(PETSC_USE_COMPLEX)
EXTERN MPI_Op PetscSum_Op;
#else
#define PetscSum_Op MPI_SUM
#endif
EXTERN PetscErrorCode PetscMaxSum(MPI_Comm,const int[],int*,int*);

/*S
     PetscObject - any PETSc object, PetscViewer, Mat, Vec, KSP etc

   Level: beginner

   Note: This is the base class from which all objects appear.

.seealso:  PetscObjectDestroy(), PetscObjectView(), PetscObjectGetName(), PetscObjectSetName()
S*/
typedef struct _p_PetscObject* PetscObject;

/*S
     PetscFList - Linked list of functions, possibly stored in dynamic libraries, accessed
      by string name

   Level: advanced

.seealso:  PetscFListAdd(), PetscFListDestroy()
S*/
typedef struct _PetscFList *PetscFList;

#include "petscviewer.h"
#include "petscoptions.h"

EXTERN PetscErrorCode PetscShowMemoryUsage(PetscViewer,const char[]);
EXTERN PetscErrorCode PetscGetTime(PetscLogDouble*);
EXTERN PetscErrorCode PetscGetCPUTime(PetscLogDouble*);
EXTERN PetscErrorCode PetscSleep(int);

/*
    Initialization of PETSc
*/
EXTERN PetscErrorCode  PetscInitialize(int*,char***,const char[],const char[]);
EXTERN PetscErrorCode  PetscInitializeNoArguments(void);
EXTERN PetscErrorCode  PetscInitialized(PetscTruth *);
EXTERN PetscErrorCode  PetscFinalize(void);
EXTERN PetscErrorCode  PetscInitializeFortran(void);
EXTERN PetscErrorCode  PetscGetArgs(int*,char ***);
EXTERN PetscErrorCode  PetscEnd(void);

/*
   ParameterDict is an abstraction for arguments to interface mechanisms
*/
extern PetscCookie DICT_COOKIE;
typedef struct _p_Dict *ParameterDict;

typedef void (**PetscVoidFunction)(void);

/*
   PetscTryMethod - Queries an object for a method, if it exists then calls it.
              These are intended to be used only inside PETSc functions.
*/
#define  PetscTryMethod(obj,A,B,C) \
  0;{ PetscErrorCode (*f)B, __ierr; \
    __ierr = PetscObjectQueryFunction((PetscObject)obj,#A,(PetscVoidFunction)&f);CHKERRQ(__ierr); \
    if (f) {__ierr = (*f)C;CHKERRQ(__ierr);}\
  }
#define  PetscUseMethod(obj,A,B,C) \
  0;{ PetscErrorCode (*f)B, __ierr; \
    __ierr = PetscObjectQueryFunction((PetscObject)obj,A,(PetscVoidFunction)&f);CHKERRQ(__ierr); \
    if (f) {__ierr = (*f)C;CHKERRQ(__ierr);}\
    else {SETERRQ1(1,"Cannot locate function %s in object",A);} \
  }
/*
    Functions that can act on any PETSc object.
*/
EXTERN PetscErrorCode PetscObjectDestroy(PetscObject);
EXTERN PetscErrorCode PetscObjectExists(PetscObject,PetscTruth*);
EXTERN PetscErrorCode PetscObjectGetComm(PetscObject,MPI_Comm *);
EXTERN PetscErrorCode PetscObjectGetCookie(PetscObject,int *);
EXTERN PetscErrorCode PetscObjectGetType(PetscObject,int *);
EXTERN PetscErrorCode PetscObjectSetName(PetscObject,const char[]);
EXTERN PetscErrorCode PetscObjectGetName(PetscObject,char*[]);
EXTERN PetscErrorCode PetscObjectReference(PetscObject);
EXTERN PetscErrorCode PetscObjectGetReference(PetscObject,int*);
EXTERN PetscErrorCode PetscObjectDereference(PetscObject);
EXTERN PetscErrorCode PetscObjectGetNewTag(PetscObject,int *);
EXTERN PetscErrorCode PetscObjectSetParameterDict(PetscObject,ParameterDict);
EXTERN PetscErrorCode PetscObjectGetParameterDict(PetscObject,ParameterDict*);
EXTERN PetscErrorCode PetscCommGetNewTag(MPI_Comm,int *);
EXTERN PetscErrorCode PetscObjectView(PetscObject,PetscViewer);
EXTERN PetscErrorCode PetscObjectCompose(PetscObject,const char[],PetscObject);
EXTERN PetscErrorCode PetscObjectQuery(PetscObject,const char[],PetscObject *);
EXTERN PetscErrorCode PetscObjectComposeFunction(PetscObject,const char[],const char[],void (*)(void));

typedef void (*FCNVOID)(void); /* cast in next macro should never be extern C */
typedef PetscErrorCode (*FCNINTVOID)(void); /* used in casts to make sure they are not extern C */
/*MC
   PetscObjectComposeFunctionDynamic - Associates a function with a given PETSc object. 
                       
   Collective on PetscObject

   Input Parameters:
+  obj - the PETSc object; this must be cast with a (PetscObject), for example, 
         PetscObjectCompose((PetscObject)mat,...);
.  name - name associated with the child function
.  fname - name of the function
-  ptr - function pointer (or PETSC_NULL if using dynamic libraries)

   Level: advanced

    Synopsis:
    int PetscObjectComposeFunctionDynamic(PetscObject obj,const char name[],const char fname[],void *ptr)

   Notes:
   To remove a registered routine, pass in a PETSC_NULL rname and fnc().

   PetscObjectComposeFunctionDynamic() can be used with any PETSc object (such as
   Mat, Vec, KSP, SNES, etc.) or any user-provided object. 

   The composed function must be wrapped in a EXTERN_C_BEGIN/END for this to
   work in C++/complex with dynamic link libraries (PETSC_USE_DYNAMIC_LIBRARIES)
   enabled.

   Concepts: objects^composing functions
   Concepts: composing functions
   Concepts: functions^querying
   Concepts: objects^querying
   Concepts: querying objects

.seealso: PetscObjectQueryFunction()
M*/
#if defined(PETSC_USE_DYNAMIC_LIBRARIES)
#define PetscObjectComposeFunctionDynamic(a,b,c,d) PetscObjectComposeFunction(a,b,c,0)
#else
#define PetscObjectComposeFunctionDynamic(a,b,c,d) PetscObjectComposeFunction(a,b,c,(FCNVOID)(d))
#endif

EXTERN PetscErrorCode PetscObjectQueryFunction(PetscObject,const char[],void (**)(void));
EXTERN PetscErrorCode PetscObjectSetOptionsPrefix(PetscObject,const char[]);
EXTERN PetscErrorCode PetscObjectAppendOptionsPrefix(PetscObject,const char[]);
EXTERN PetscErrorCode PetscObjectPrependOptionsPrefix(PetscObject,const char[]);
EXTERN PetscErrorCode PetscObjectGetOptionsPrefix(PetscObject,char*[]);
EXTERN PetscErrorCode PetscObjectPublish(PetscObject);
EXTERN PetscErrorCode PetscObjectChangeTypeName(PetscObject,const char[]);
EXTERN PetscErrorCode PetscObjectRegisterDestroy(PetscObject);
EXTERN PetscErrorCode PetscObjectRegisterDestroyAll(void);
EXTERN PetscErrorCode PetscObjectName(PetscObject);
EXTERN PetscErrorCode PetscTypeCompare(PetscObject,const char[],PetscTruth*);

/*
    Defines PETSc error handling.
*/
#include "petscerror.h"

/*S
     PetscOList - Linked list of PETSc objects, accessable by string name

   Level: advanced

.seealso:  PetscOListAdd(), PetscOListDestroy(), PetscOListFind()
S*/
typedef struct _PetscOList *PetscOList;

EXTERN PetscErrorCode PetscOListDestroy(PetscOList *);
EXTERN PetscErrorCode PetscOListFind(PetscOList,const char[],PetscObject*);
EXTERN PetscErrorCode PetscOListReverseFind(PetscOList,PetscObject,char**);
EXTERN PetscErrorCode PetscOListAdd(PetscOList *,const char[],PetscObject);
EXTERN PetscErrorCode PetscOListDuplicate(PetscOList,PetscOList *);

/*
    Dynamic library lists. Lists of names of routines in dynamic 
  link libraries that will be loaded as needed.
*/
EXTERN PetscErrorCode PetscFListAdd(PetscFList*,const char[],const char[],void (*)(void));
EXTERN PetscErrorCode PetscFListDestroy(PetscFList*);
EXTERN PetscErrorCode PetscFListFind(MPI_Comm,PetscFList,const char[],void (**)(void));
EXTERN PetscErrorCode PetscFListPrintTypes(MPI_Comm,FILE*,const char[],const char[],const char[],const char[],PetscFList);
#if defined(PETSC_USE_DYNAMIC_LIBRARIES)
#define    PetscFListAddDynamic(a,b,p,c) PetscFListAdd(a,b,p,0)
#else
#define    PetscFListAddDynamic(a,b,p,c) PetscFListAdd(a,b,p,(void (*)(void))c)
#endif
EXTERN PetscErrorCode PetscFListDuplicate(PetscFList,PetscFList *);
EXTERN PetscErrorCode PetscFListView(PetscFList,PetscViewer);
EXTERN PetscErrorCode PetscFListConcat(const char [],const char [],char []);
EXTERN PetscErrorCode PetscFListGet(PetscFList,char ***,int*);

/*S
     PetscDLLibraryList - Linked list of dynamics libraries to search for functions

   Level: advanced

   PETSC_USE_DYNAMIC_LIBRARIES must be defined in petscconf.h to use dynamic libraries

.seealso:  PetscDLLibraryOpen()
S*/
typedef struct _PetscDLLibraryList *PetscDLLibraryList;
extern PetscDLLibraryList DLLibrariesLoaded;
EXTERN PetscErrorCode PetscDLLibraryRetrieve(MPI_Comm,const char[],char *,int,PetscTruth *);
EXTERN PetscErrorCode PetscDLLibraryOpen(MPI_Comm,const char[],void **);
EXTERN PetscErrorCode PetscDLLibrarySym(MPI_Comm,PetscDLLibraryList *,const char[],const char[],void **);
EXTERN PetscErrorCode PetscDLLibraryAppend(MPI_Comm,PetscDLLibraryList *,const char[]);
EXTERN PetscErrorCode PetscDLLibraryPrepend(MPI_Comm,PetscDLLibraryList *,const char[]);
EXTERN PetscErrorCode PetscDLLibraryClose(PetscDLLibraryList);
EXTERN PetscErrorCode PetscDLLibraryPrintPath(void);
EXTERN PetscErrorCode PetscDLLibraryGetInfo(void*,const char[],const char *[]);

/*
    Mechanism for translating PETSc object representations between languages
    Not currently used.
*/
typedef enum {PETSC_LANGUAGE_C,PETSC_LANGUAGE_CPP} PetscLanguage;
#define PETSC_LANGUAGE_F77 PETSC_LANGUAGE_C
EXTERN PetscErrorCode PetscObjectComposeLanguage(PetscObject,PetscLanguage,void *);
EXTERN PetscErrorCode PetscObjectQueryLanguage(PetscObject,PetscLanguage,void **);

/*
     Useful utility routines
*/
EXTERN PetscErrorCode PetscSplitOwnership(MPI_Comm,int*,int*);
EXTERN PetscErrorCode PetscSplitOwnershipBlock(MPI_Comm,int,int*,int*);
EXTERN PetscErrorCode PetscSequentialPhaseBegin(MPI_Comm,int);
EXTERN PetscErrorCode PetscSequentialPhaseEnd(MPI_Comm,int);
EXTERN PetscErrorCode PetscBarrier(PetscObject);
EXTERN PetscErrorCode PetscMPIDump(FILE*);

#define PetscNot(a) ((a) ? PETSC_FALSE : PETSC_TRUE)
/*
    Defines basic graphics available from PETSc.
*/
#include "petscdraw.h"

/*
    Defines the base data structures for all PETSc objects
*/
#include "petschead.h"

/*
     Defines PETSc profiling.
*/
#include "petsclog.h"

/*
          For locking, unlocking and destroying AMS memories associated with 
    PETSc objects
*/
#if defined(PETSC_HAVE_AMS)

extern PetscTruth PetscAMSPublishAll;
#define PetscPublishAll(v) (PetscAMSPublishAll ? PetscObjectPublish((PetscObject)v) : 0)
#define PetscObjectTakeAccess(obj)  ((((PetscObject)(obj))->amem == -1) ? 0 : AMS_Memory_take_access(((PetscObject)(obj))->amem))
#define PetscObjectGrantAccess(obj) ((((PetscObject)(obj))->amem == -1) ? 0 : AMS_Memory_grant_access(((PetscObject)(obj))->amem))
#define PetscObjectDepublish(obj)   ((((PetscObject)(obj))->amem == -1) ? 0 : AMS_Memory_destroy(((PetscObject)(obj))->amem)); \
    ((PetscObject)(obj))->amem = -1;

#else

#define PetscPublishAll(v)           0
#define PetscObjectTakeAccess(obj)   0
#define PetscObjectGrantAccess(obj)  0
#define PetscObjectDepublish(obj)      0

#endif



/*
      This code allows one to pass a MPI communicator between 
    C and Fortran. MPI 2.0 defines a standard API for doing this.
    The code here is provided to allow PETSc to work with MPI 1.1
    standard MPI libraries.
*/
EXTERN PetscErrorCode  MPICCommToFortranComm(MPI_Comm,int *);
EXTERN PetscErrorCode  MPIFortranCommToCComm(int,MPI_Comm*);

/*
      Simple PETSc parallel IO for ASCII printing
*/
EXTERN PetscErrorCode  PetscFixFilename(const char[],char[]);
EXTERN PetscErrorCode  PetscFOpen(MPI_Comm,const char[],const char[],FILE**);
EXTERN PetscErrorCode  PetscFClose(MPI_Comm,FILE*);
EXTERN PetscErrorCode  PetscFPrintf(MPI_Comm,FILE*,const char[],...) PETSC_PRINTF_FORMAT_CHECK(3,4);
EXTERN PetscErrorCode  PetscPrintf(MPI_Comm,const char[],...)  PETSC_PRINTF_FORMAT_CHECK(2,3);

/* These are used internally by PETSc ASCII IO routines*/
#include <stdarg.h>
EXTERN PetscErrorCode  PetscVSNPrintf(char*,size_t,const char*,va_list);
EXTERN PetscErrorCode  PetscVFPrintf(FILE*,const char*,va_list);

/*MC
    PetscErrorPrintf - Prints error messages.

    Not Collective

   Synopsis:
     PetscErrorCode (*PetscErrorPrintf)(const char format[],...);

    Input Parameters:
.   format - the usual printf() format string 

   Options Database Keys:
.    -error_output_stderr - cause error messages to be printed to stderr instead of the
         (default) stdout


   Level: developer

    Fortran Note:
    This routine is not supported in Fortran.

    Concepts: error messages^printing
    Concepts: printing^error messages

.seealso: PetscFPrintf(), PetscSynchronizedPrintf(), PetscHelpPrintf()
M*/
EXTERN PetscErrorCode  (*PetscErrorPrintf)(const char[],...);

/*MC
    PetscHelpPrintf - Prints help messages.

    Not Collective

   Synopsis:
     PetscErrorCode (*PetscHelpPrintf)(const char format[],...);

    Input Parameters:
.   format - the usual printf() format string 

   Level: developer

    Fortran Note:
    This routine is not supported in Fortran.

    Concepts: help messages^printing
    Concepts: printing^help messages

.seealso: PetscFPrintf(), PetscSynchronizedPrintf(), PetscErrorPrintf()
M*/
EXTERN PetscErrorCode  (*PetscHelpPrintf)(MPI_Comm,const char[],...);

EXTERN PetscErrorCode  PetscPOpen(MPI_Comm,const char[],const char[],const char[],FILE **);
EXTERN PetscErrorCode  PetscPClose(MPI_Comm,FILE*);
EXTERN PetscErrorCode  PetscSynchronizedPrintf(MPI_Comm,const char[],...) PETSC_PRINTF_FORMAT_CHECK(2,3);
EXTERN PetscErrorCode  PetscSynchronizedFPrintf(MPI_Comm,FILE*,const char[],...) PETSC_PRINTF_FORMAT_CHECK(3,4);
EXTERN PetscErrorCode  PetscSynchronizedFlush(MPI_Comm);
EXTERN PetscErrorCode  PetscSynchronizedFGets(MPI_Comm,FILE*,int,char[]);
EXTERN PetscErrorCode  PetscStartMatlab(MPI_Comm,const char[],const char[],FILE**);
EXTERN PetscErrorCode  PetscStartJava(MPI_Comm,const char[],const char[],FILE**);
EXTERN PetscErrorCode  PetscGetPetscDir(const char*[]);

EXTERN PetscErrorCode  PetscPopUpSelect(MPI_Comm,char*,char*,int,char**,int*);
/*S
     PetscObjectContainer - Simple PETSc object that contains a pointer to any required data

   Level: advanced

.seealso:  PetscObject, PetscObjectContainerCreate()
S*/
typedef struct _p_PetscObjectContainer*  PetscObjectContainer;
EXTERN PetscErrorCode PetscObjectContainerGetPointer(PetscObjectContainer,void **);
EXTERN PetscErrorCode PetscObjectContainerSetPointer(PetscObjectContainer,void *);
EXTERN PetscErrorCode PetscObjectContainerDestroy(PetscObjectContainer);
EXTERN PetscErrorCode PetscObjectContainerCreate(MPI_Comm comm,PetscObjectContainer *);

/*
   For incremental debugging
*/
extern PetscTruth PetscCompare;
EXTERN PetscErrorCode        PetscCompareDouble(double);
EXTERN PetscErrorCode        PetscCompareScalar(PetscScalar);
EXTERN PetscErrorCode        PetscCompareInt(int);

/*
   For use in debuggers 
*/
extern int PetscGlobalRank,PetscGlobalSize;
EXTERN PetscErrorCode PetscIntView(int,int[],PetscViewer);
EXTERN PetscErrorCode PetscRealView(int,PetscReal[],PetscViewer);
EXTERN PetscErrorCode PetscScalarView(int,PetscScalar[],PetscViewer);

/*
    Allows accessing Matlab Engine
*/
#include "petscmatlab.h"

/*
    C code optimization is often enhanced by telling the compiler 
  that certain pointer arguments to functions are not aliased to 
  to other arguments. This is not yet ANSI C standard so we define 
  the macro "restrict" to indicate that the variable is not aliased 
  to any other argument.
*/
#if defined(PETSC_HAVE_RESTRICT) && !defined(__cplusplus)
#define restrict _Restrict
#else
#if defined(restrict)
#undef restrict
#endif
#define restrict
#endif

/*
      Determine if some of the kernel computation routines use
   Fortran (rather than C) for the numerical calculations. On some machines
   and compilers (like complex numbers) the Fortran version of the routines
   is faster than the C/C++ versions. The flag PETSC_USE_FORTRAN_KERNELS  
   would be set in the petscconf.h file
*/
#if defined(PETSC_USE_FORTRAN_KERNELS)

#if !defined(PETSC_USE_FORTRAN_KERNEL_MULTAIJ)
#define PETSC_USE_FORTRAN_KERNEL_MULTAIJ
#endif

#if !defined(PETSC_USE_FORTRAN_KERNEL_MULTTRANSPOSEAIJ)
#define PETSC_USE_FORTRAN_KERNEL_MULTTRANSPOSEAIJ
#endif

#if !defined(PETSC_USE_FORTRAN_KERNEL_NORM)
#define PETSC_USE_FORTRAN_KERNEL_NORM
#endif

#if !defined(PETSC_USE_FORTRAN_KERNEL_MAXPY)
#define PETSC_USE_FORTRAN_KERNEL_MAXPY
#endif

#if !defined(PETSC_USE_FORTRAN_KERNEL_SOLVEAIJ)
#define PETSC_USE_FORTRAN_KERNEL_SOLVEAIJ
#endif

#if !defined(PETSC_USE_FORTRAN_KERNEL_RELAXAIJ)
#define PETSC_USE_FORTRAN_KERNEL_RELAXAIJ
#endif

#if !defined(PETSC_USE_FORTRAN_KERNEL_SOLVEBAIJ)
#define PETSC_USE_FORTRAN_KERNEL_SOLVEBAIJ
#endif

#if !defined(PETSC_USE_FORTRAN_KERNEL_MULTADDAIJ)
#define PETSC_USE_FORTRAN_KERNEL_MULTADDAIJ
#endif

#if !defined(PETSC_USE_FORTRAN_KERNEL_MDOT)
#define PETSC_USE_FORTRAN_KERNEL_MDOT
#endif

#if !defined(PETSC_USE_FORTRAN_KERNEL_XTIMESY)
#define PETSC_USE_FORTRAN_KERNEL_XTIMESY
#endif

#if !defined(PETSC_USE_FORTRAN_KERNEL_AYPX)
#define PETSC_USE_FORTRAN_KERNEL_AYPX
#endif

#if !defined(PETSC_USE_FORTRAN_KERNEL_WAXPY)
#define PETSC_USE_FORTRAN_KERNEL_WAXPY
#endif

#endif

/*
    Macros for indicating code that should be compiled with a C interface,
   rather than a C++ interface. Any routines that are dynamically loaded
   (such as the PCCreate_XXX() routines) must be wrapped so that the name
   mangler does not change the functions symbol name. This just hides the 
   ugly extern "C" {} wrappers.
*/
#if defined(__cplusplus)
#define EXTERN_C_BEGIN extern "C" {
#define EXTERN_C_END }
#else
#define EXTERN_C_BEGIN 
#define EXTERN_C_END 
#endif

/* --------------------------------------------------------------------*/

/*M
    size - integer variable used to contain the number of processors in
           the relevent MPI_Comm

   Level: beginner

.seealso: rank, comm
M*/

/*M
    rank - integer variable used to contain the number of this processor relative
           to all in the relevent MPI_Comm

   Level: beginner

.seealso: size, comm
M*/

/*M
    comm - MPI_Comm used in the current routine or object

   Level: beginner

.seealso: size, rank
M*/

/*M
    MPI_Comm - the basic object used by MPI to determine which processes are involved in a 
        communication

   Level: beginner

   Note: This manual page is a place-holder because MPICH does not have a manual page for MPI_Comm

.seealso: size, rank, comm, PETSC_COMM_WORLD, PETSC_COMM_SELF
M*/

/*M
    PetscScalar - PETSc type that represents either a double precision real number or 
       a double precision complex number if the code is compiled with BOPT=g_complex or O_complex

   Level: beginner

.seealso: PetscReal, PassiveReal, PassiveScalar
M*/

/*M
    PetscReal - PETSc type that represents a double precision real number

   Level: beginner

.seealso: PetscScalar, PassiveReal, PassiveScalar
M*/

/*M
    PassiveScalar - PETSc type that represents either a double precision real number or 
       a double precision complex number if the code is compiled with BOPT=g_complex or O_complex

   Level: beginner

    This is the same as a PetscScalar except in code that is automatically differentiated it is
   treated as a constant (not an indendent or dependent variable)

.seealso: PetscReal, PassiveReal, PetscScalar
M*/

/*M
    PassiveReal - PETSc type that represents a double precision real number

   Level: beginner

    This is the same as a PetscReal except in code that is automatically differentiated it is
   treated as a constant (not an indendent or dependent variable)

.seealso: PetscScalar, PetscReal, PassiveScalar
M*/

/*M
    MPIU_SCALAR - MPI datatype corresponding to PetscScalar

   Level: beginner

    Note: In MPI calls that require an MPI datatype that matches a PetscScalar or array of PetscScalars
          pass this value

.seealso: PetscReal, PassiveReal, PassiveScalar, PetscScalar
M*/

/*
     The IBM include files define hz, here we hide it so that it may be used
   as a regular user variable.
*/
#if defined(hz)
#undef hz
#endif

/*  For arrays that contain filenames or paths */


#if defined(PETSC_HAVE_LIMITS_H)
#include <limits.h>
#endif
#if defined(PETSC_HAVE_SYS_PARAM_H)
#include <sys/param.h>
#endif

#if defined(MAXPATHLEN)
#  define PETSC_MAX_PATH_LEN     MAXPATHLEN
#elif defined(MAX_PATH)
#  define PETSC_MAX_PATH_LEN     MAX_PATH
#elif defined(_MAX_PATH)
#  define PETSC_MAX_PATH_LEN     _MAX_PATH
#else
#  define PETSC_MAX_PATH_LEN     4096
#endif

PETSC_EXTERN_CXX_END
#endif


