-/* Copyright (c) 2013-2019. The SimGrid Team.
+/* Copyright (c) 2013-2023. The SimGrid Team.
* All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
*****************************************************************************/
/*****************************************************************************
- * Function: is_2dmesh
- * return: int
+ * Function: is_3dmesh
+ * return: bool
* num: the number of processors in a communicator
* i: x dimension
* j: y dimension
****************************************************************************/
#ifndef THREED
#define THREED
-static int is_3dmesh(int num, int *i, int *j, int *k)
+static bool is_3dmesh(int num, int* i, int* j, int* k)
{
int x, max = num / 3;
x = cbrt(num);
if ((num % (x * x)) == 0) {
*i = *j = x;
*k = num / (x * x);
- return 1;
+ return true;
}
x++;
}
- return 0;
+ return false;
}
#endif
/*****************************************************************************
* algorithm. Allgather ommunication occurs first in the x dimension, y
* dimension, and then in the z dimension. Communication in each dimension
* follows "simple"
- * Auther: Ahmad Faraj
+ * Author: Ahmad Faraj
****************************************************************************/
-namespace simgrid{
-namespace smpi{
-
+namespace simgrid::smpi {
-int Coll_allgather_3dmesh::allgather(const void *send_buff, int send_count,
- MPI_Datatype send_type, void *recv_buff,
- int recv_count, MPI_Datatype recv_type,
- MPI_Comm comm)
+int allgather__3dmesh(const void *send_buff, int send_count,
+ MPI_Datatype send_type, void *recv_buff,
+ int recv_count, MPI_Datatype recv_type,
+ MPI_Comm comm)
{
MPI_Aint extent;
extent = send_type->get_extent();
if (not is_3dmesh(num_procs, &X, &Y, &Z))
- THROWF(arg_error,0, "allgather_3dmesh algorithm can't be used with this number of processes! ");
-
+ throw std::invalid_argument("allgather_3dmesh algorithm can't be used with this number of processes!");
num_reqs = X;
block_size = extent * send_count;
- MPI_Request* req = new MPI_Request[num_reqs];
+ auto* req = new MPI_Request[num_reqs];
MPI_Request* req_ptr = req;
// do local allgather/local copy
return MPI_SUCCESS;
}
-
-}
-}
+} // namespace simgrid::smpi