C++ (Cpp) QMP_declare_send_to Beispiele

Beispiel #1

Datei: DML_parscalar.c Projekt: junhe/qio-2.2.0-posix

int DML_send_bytes(char *buf, size_t size, int tonode){
  QMP_msgmem_t mm;
  QMP_msghandle_t mh;

  mm = QMP_declare_msgmem(buf, size);
  mh = QMP_declare_send_to(mm, tonode, 0);
  QMP_start(mh);
  QMP_wait(mh);
  QMP_free_msghandle(mh);
  QMP_free_msgmem(mm);
  return 0;
}

Beispiel #2

Datei: comm_qmp.cpp Projekt: ckallidonis/quda

/**
 * Declare a message handle for sending to a node displaced in (x,y,z,t) according to "displacement"
 */
MsgHandle *comm_declare_send_displaced(void *buffer, const int displacement[], size_t nbytes)
{
  Topology *topo = comm_default_topology();

  int rank = comm_rank_displaced(topo, displacement);
  MsgHandle *mh = (MsgHandle *)safe_malloc(sizeof(MsgHandle));

  mh->mem = QMP_declare_msgmem(buffer, nbytes);
  if (mh->mem == NULL) errorQuda("Unable to allocate QMP message memory");

  mh->handle = QMP_declare_send_to(mh->mem, rank, 0);
  if (mh->handle == NULL) errorQuda("Unable to allocate QMP message handle");

  return mh;
}

Beispiel #3

Datei: QMP_broadcast.c Projekt: 6twirl9/qmp

void
stupid_broadcast(void *send_buf, int count)
{
  int node;
  int num_nodes = QMP_get_number_of_nodes();
  QMP_msgmem_t request_msg = QMP_declare_msgmem(send_buf, count);
  QMP_msghandle_t request_mh;

  // Send to each node
  for(node=1; node < num_nodes; ++node)
  {
    if (QMP_get_node_number() == node)
    {
      request_mh = QMP_declare_receive_from(request_msg, 0, 0);

      if (QMP_start(request_mh) != QMP_SUCCESS)
	QMP_abort_string(1, "recvFromWait failed\n");

      QMP_wait(request_mh);
      QMP_free_msghandle(request_mh);
    }

    if (QMP_is_primary_node())
    {
      request_mh = QMP_declare_send_to(request_msg, node, 0);

      if (QMP_start(request_mh) != QMP_SUCCESS)
	QMP_abort_string(1, "sendToWait failed\n");

      QMP_wait(request_mh);
      QMP_free_msghandle(request_mh);
    }
  }

  QMP_free_msgmem(request_msg);
}