-/* Copyright (c) 2009-2010, 2013-2018. The SimGrid Team.
+/* Copyright (c) 2009-2019. The SimGrid Team.
* All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
for (i = 0; i < size; i++)
printf("%llu ", sb[i]);
printf("]\n");
-
int root=0;
+
+ status = MPI_Reduce(NULL, rb, size, MPI_UNSIGNED_LONG_LONG, MPI_SUM, root, MPI_COMM_WORLD);
+ if(status!=MPI_ERR_BUFFER)
+ printf("MPI_Reduce did not return MPI_ERR_BUFFER for empty sendbuf\n");
+ status = MPI_Reduce(sb, rb, -1, MPI_UNSIGNED_LONG_LONG, MPI_SUM, root, MPI_COMM_WORLD);
+ if(status!=MPI_ERR_COUNT)
+ printf("MPI_Reduce did not return MPI_ERR_COUNT for -1 count\n");
+ status = MPI_Reduce(sb, rb, size, MPI_DATATYPE_NULL, MPI_SUM, root, MPI_COMM_WORLD);
+ if(status!=MPI_ERR_TYPE)
+ printf("MPI_Reduce did not return MPI_ERR_TYPE for MPI_DATATYPE_NULL type\n");
+ status = MPI_Reduce(sb, rb, size, MPI_UNSIGNED_LONG_LONG, MPI_OP_NULL, root, MPI_COMM_WORLD);
+ if(status!=MPI_ERR_OP)
+ printf("MPI_Reduce did not return MPI_ERR_COMM for MPI_OP_NULL op\n");
+ status = MPI_Reduce(sb, rb, size, MPI_UNSIGNED_LONG_LONG, MPI_SUM, -1, MPI_COMM_WORLD);
+ if(status!=MPI_ERR_ROOT)
+ printf("MPI_Reduce did not return MPI_ERR_ROOT for root -1\n");
+ status = MPI_Reduce(sb, rb, size, MPI_UNSIGNED_LONG_LONG, MPI_SUM, size+1, MPI_COMM_WORLD);
+ if(status!=MPI_ERR_ROOT)
+ printf("MPI_Reduce did not return MPI_ERR_ROOT for root > size\n");
+ status = MPI_Reduce(sb, rb, size, MPI_UNSIGNED_LONG_LONG, MPI_SUM, root, MPI_COMM_NULL);
+ if(status!=MPI_ERR_COMM)
+ printf("MPI_Reduce did not return MPI_ERR_COMM for MPI_COMM_NULL comm\n");
+
status = MPI_Reduce(sb, rb, size, MPI_UNSIGNED_LONG_LONG, MPI_SUM, root, MPI_COMM_WORLD);
MPI_Barrier(MPI_COMM_WORLD);