comm_single.cpp

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#include <stdlib.h>
#include <comm_quda.h>

void comm_init(int ndim, const int *dims, QudaCommsMap rank_from_coords, void *map_data)
{
  Topology *topo = comm_create_topology(ndim, dims, rank_from_coords, map_data);
  comm_set_default_topology(topo);
}

int comm_rank(void) { return 0; }

int comm_size(void) { return 1; }

int comm_gpuid(void) { return 0; }

MsgHandle *comm_declare_send_displaced(void *buffer, const int displacement[], size_t nbytes) 
{ return NULL; }

MsgHandle *comm_declare_receive_displaced(void *buffer, const int displacement[], size_t nbytes) 
{ return NULL; }

MsgHandle *comm_declare_strided_send_displaced(void *buffer, const int displacement[], 
                                               size_t blksize, int nblocks, size_t stride) 
{ return NULL; }

MsgHandle *comm_declare_strided_receive_displaced(void *buffer, const int displacement[], 
                                                  size_t blksize, int nblocks, size_t stride) 
{ return NULL; }

void comm_free(MsgHandle *mh) {}

void comm_start(MsgHandle *mh) {}

void comm_wait(MsgHandle *mh) {}

int comm_query(MsgHandle *mh) { return 1; }

void comm_allreduce(double* data) {}

void comm_allreduce_max(double* data) {}

void comm_allreduce_array(double* data, size_t size) {}

void comm_allreduce_int(int* data) {}

void comm_broadcast(void *data, size_t nbytes) {}

void comm_barrier(void) {}

void comm_abort(int status) { exit(status); }