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#ifndef NOMPI_H
#define NOMPI_H
/* Provide (dummy) replacements for many MPI routines in case MPI is
not available */
#include <cctk.h>
#ifndef CCTK_MPI
#include <stdlib.h>
typedef ptrdiff_t MPI_Aint;
typedef int MPI_Comm; /* no content */
typedef MPI_Aint MPI_Datatype;
typedef enum {
MPI_LOR,
MPI_MAX,
MPI_MIN,
MPI_PROD,
MPI_SUM,
} MPI_Op;
typedef int MPI_Request; /* no content */
typedef int MPI_Status; /* no contend */
MPI_Comm const MPI_COMM_NULL = -1;
MPI_Comm const MPI_COMM_WORLD = 0;
MPI_Datatype const MPI_DATATYPE_NULL = 0;
MPI_Datatype const MPI_CHAR = sizeof(char );
MPI_Datatype const MPI_SHORT = sizeof(short );
MPI_Datatype const MPI_INT = sizeof(int );
MPI_Datatype const MPI_LONG = sizeof(long );
MPI_Datatype const MPI_LONG_LONG_INT = sizeof(long long int );
MPI_Datatype const MPI_UNSIGNED_CHAR = sizeof(unsigned char );
MPI_Datatype const MPI_UNSIGNED_SHORT = sizeof(unsigned short);
MPI_Datatype const MPI_UNSIGNED = sizeof(unsigned );
MPI_Datatype const MPI_UNSIGNED_LONG = sizeof(unsigned long );
MPI_Datatype const MPI_FLOAT = sizeof(float );
MPI_Datatype const MPI_DOUBLE = sizeof(double );
MPI_Datatype const MPI_LONG_DOUBLE = sizeof(long double );
MPI_Datatype const MPI_UB = -1;
MPI_Request const MPI_REQUEST_NULL = -1;
MPI_Status* const MPI_STATUSES_IGNORE = NULL;
#ifdef __cplusplus
extern "C" {
#endif
int
MPI_Abort (MPI_Comm const comm, int const errorcode);
int
MPI_Allgather (void* const sendbuf, int const sendcnt,
MPI_Datatype const sendtype,
void* const recvbuf, int const recvcnt,
MPI_Datatype const recvtype,
MPI_Comm const comm);
int
MPI_Allgatherv (void* const sendbuf, int const sendcnt,
MPI_Datatype const sendtype,
void* const recvbuf, int* const recvcnts, int* const recvoffs,
MPI_Datatype const recvtype,
MPI_Comm const comm);
int
MPI_Allreduce (void* const sendbuf, void* const recvbuf, int const cnt,
MPI_Datatype const datatype, MPI_Op const op,
MPI_Comm const comm);
int
MPI_Alltoall (void* const sendbuf, int const sendcnt,
MPI_Datatype const sendtype,
void* const recvbuf, int const recvcnt,
MPI_Datatype const recvtype,
MPI_Comm const comm);
int
MPI_Alltoallv (void* const sendbuf, int* const sendcnts, int* const sendoffs,
MPI_Datatype const sendtype,
void* const recvbuf, int* const recvcnts, int* const recvoffs,
MPI_Datatype const recvtype,
MPI_Comm const comm);
int
MPI_Barrier (MPI_Comm const comm);
int
MPI_Bcast (void* const buf, int const cnt,
MPI_Datatype const datatype,
int const root, MPI_Comm const comm);
int
MPI_Comm_rank (MPI_Comm const comm, int* const rank);
int
MPI_Comm_size (MPI_Comm const comm, int* const size);
int
MPI_Comm_split (MPI_Comm const comm, int const color, int const key,
MPI_Comm *const newcomm);
int
MPI_Dims_create (int const nnodes, int const ndims, int* const dims);
int
MPI_Finalize (void);
int
MPI_Gather (void* const sendbuf, int const sendcnt,
MPI_Datatype const sendtype,
void* const recvbuf, int const recvcnt,
MPI_Datatype const recvtype,
int const root, MPI_Comm const comm);
int
MPI_Gatherv (void* const sendbuf, int const sendcnt,
MPI_Datatype const sendtype,
void* const recvbuf, int* const recvcnts, int* const recvoffs,
MPI_Datatype const recvtype,
int const root, MPI_Comm const comm);
int
MPI_Init (int* const argc, char*** const argv);
int
MPI_Irecv (void* const buf, int const cnt, MPI_Datatype const datatype,
int const source, int const tag, MPI_Comm const comm,
MPI_Request* const request);
int
MPI_Isend (void* const buf, int const count, MPI_Datatype const datatype,
int const dest, int const tag, MPI_Comm const comm,
MPI_Request* const request);
int
MPI_Pcontrol (int const level, ... );
int
MPI_Reduce (void* const sendbuf, void* const recvbuf, int const cnt,
MPI_Datatype const datatype, MPI_Op const op, int const root,
MPI_Comm const comm);
int
MPI_Send (void* const buf, int const count, MPI_Datatype const datatype,
int const dest, int const tag, MPI_Comm const comm);
int
MPI_Ssend (void* const buf, int const count, MPI_Datatype const datatype,
int const dest, int const tag, MPI_Comm const comm);
int
MPI_Type_commit (MPI_Datatype* const datatype);
int
MPI_Type_contiguous (int const cnt, MPI_Datatype const oldtype,
MPI_Datatype* const newtype);
int
MPI_Type_free (MPI_Datatype* const datatype);
int
MPI_Type_lb (MPI_Datatype const datatype, MPI_Aint* const displacement);
int
MPI_Type_size (MPI_Datatype const datatype, int* const size);
int
MPI_Type_struct (int const cnt,
int* const array_of_blocklengths,
MPI_Aint* const array_of_displacements,
MPI_Datatype* const array_of_types,
MPI_Datatype* const newtype);
int
MPI_Type_ub (MPI_Datatype const datatype, MPI_Aint* const displacement);
int
MPI_Type_vector (int const cnt, int const blocklength, int const stride,
MPI_Datatype const oldtype, MPI_Datatype* const newtype);
int
MPI_Waitall (int const cnt, MPI_Request* const array_of_requests,
MPI_Status* const array_of_statuses);
double
MPI_Wtime (void);
#ifdef __cplusplus
}
#endif
#endif /* #ifndef CCTK_MPI */
#endif /* #ifndef NOMPI_H */
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