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lammps/examples/COUPLE/library/irregular.h
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irregular.h
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#ifndef IRREGULAR_H
#define IRREGULAR_H
#include <mpi.h>
class Irregular {
public:
Irregular(MPI_Comm);
~Irregular();
void pattern(int, int *);
int size(int);
int size(int *, int *, int *);
void exchange(char *, char *);
private:
int me,nprocs;
int patternflag; // UNSET,SET
int sizestyle; // NONE,SAME,VARYING
int self; // 0 = no data to copy to self, 1 = yes
int ndatumsend; // # of datums to send w/ self
int ndatumrecv; // # of datums to recv w/ self
int nbytesrecv; // total bytes in received data w/ self
int nsend; // # of messages to send w/out self
int nrecv; // # of messages to recv w/out self
int nsendmax; // # of bytes in largest send message, w/out self
int *sendproc; // list of procs to send to w/out self
int *sendcount; // # of datums to send to each proc w/ self
int *sendsize; // # of bytes to send to each proc w/ self
int *sendindices; // indices of datums to send to each proc w/ self
int nsize; // size of every datum in bytes (SAME)
int *sendsizedatum; // bytes in each datum to send w/ self (VARYING)
int *sendoffset; // byte offset to where each datum starts w/ self
int sendoffsetflag; // 1 if allocated sendoffset, 0 if passed in
int *recvproc; // list of procs to recv from w/out self
int *recvcount; // # of datums to recv from each proc w/out self
int *recvsize; // # of bytes to recv from each proc w/out self
MPI_Request *request; // MPI requests for posted recvs
MPI_Status *status; // MPI statuses for Waitall
MPI_Comm comm; // MPI communicator for all communication
class Memory *memory;
class Error *error;
void exchange_same(char *, char *);
void exchange_varying(char *, char *);
void init();
void deallocate();
};
#endif
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