1 /* Copyright (c) 2009-2023. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
13 int main(int argc, char *argv[])
20 MPI_Init(&argc, &argv);
21 MPI_Comm_rank(MPI_COMM_WORLD, &rank);
22 MPI_Comm_size(MPI_COMM_WORLD, &size);
23 MPI_Comm_set_errhandler(MPI_COMM_WORLD, MPI_ERRORS_RETURN);
26 int* sb = (int *) xbt_malloc(size * sizeof(int) * 2);
27 int* rb = (int *) xbt_malloc(size * sizeof(int) * 2);
29 for (i = 0; i < size; ++i) {
30 sb[i] = rank*size + i;
34 printf("[%d] sndbuf=[", rank);
35 for (i = 0; i < size; i++)
40 status = MPI_Alltoall(NULL, count, MPI_INT, rb, count, MPI_INT, MPI_COMM_WORLD);
41 if(status!=MPI_ERR_BUFFER)
42 printf("MPI_Alltoall did not return MPI_ERR_BUFFER for empty sendbuf\n");
43 status = MPI_Alltoall(sb, -1, MPI_INT, rb, count, MPI_INT, MPI_COMM_WORLD);
44 if(status!=MPI_ERR_COUNT)
45 printf("MPI_Alltoall did not return MPI_ERR_COUNT for -1 sendcount\n");
46 status = MPI_Alltoall(sb, count, MPI_DATATYPE_NULL, rb, count, MPI_INT, MPI_COMM_WORLD);
47 if(status!=MPI_ERR_TYPE)
48 printf("MPI_Alltoall did not return MPI_ERR_TYPE for MPI_DATATYPE_NULL sendtype\n");
49 status = MPI_Alltoall(sb, count, MPI_INT, NULL, count, MPI_INT, MPI_COMM_WORLD);
50 if(status!=MPI_ERR_BUFFER)
51 printf("MPI_Alltoall did not return MPI_ERR_BUFFER for empty recvbuf\n");
52 status = MPI_Alltoall(sb, count, MPI_INT, rb, -1, MPI_INT, MPI_COMM_WORLD);
53 if(status!=MPI_ERR_COUNT)
54 printf("MPI_Alltoall did not return MPI_ERR_COUNT for -1 recvcount\n");
55 status = MPI_Alltoall(sb, count, MPI_INT, rb, count, MPI_DATATYPE_NULL, MPI_COMM_WORLD);
56 if(status!=MPI_ERR_TYPE)
57 printf("MPI_Alltoall did not return MPI_ERR_TYPE for MPI_DATATYPE_NULL recvtype\n");
58 status = MPI_Alltoall(sb, count, MPI_INT, rb, count, MPI_INT, MPI_COMM_NULL);
59 if(status!=MPI_ERR_COMM)
60 printf("MPI_Alltoall did not return MPI_ERR_COMM for MPI_COMM_NULL comm\n");
62 status = MPI_Alltoall(sb, count, MPI_INT, rb, count, MPI_INT, MPI_COMM_WORLD);
64 printf("[%d] rcvbuf=[", rank);
65 for (i = 0; i < size; i++)
69 if (rank == 0 && status != MPI_SUCCESS)
70 printf("all_to_all returned %d\n", status);