1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
|
/*
* Copyright (C) 2010. See COPYRIGHT in top-level directory.
*/
/** ARMCI RMW-FADD test -- James Dinan <dinan@mcs.anl.gov>
*
* All processes allocate one shared integer counter per process. All
* processes perform NINC atomic fetch-and-add operations on every counter.
*/
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <mpi.h>
#include <armci.h>
#define NINC 100
int main(int argc, char ** argv) {
int errors = 0;
int rank, nproc, i, j;
void **base_ptrs;
int ival;
long lval;
MPI_Init(&argc, &argv);
ARMCI_Init();
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Comm_size(MPI_COMM_WORLD, &nproc);
if (rank == 0) printf("Starting ARMCI RMW-FADD test with %d processes\n", nproc);
/* TYPE = INT */
base_ptrs = malloc(sizeof(void*)*nproc);
ARMCI_Malloc(base_ptrs, sizeof(int));
ARMCI_Access_begin(base_ptrs[rank]);
*(int*) base_ptrs[rank] = 0;
ARMCI_Access_end(base_ptrs[rank]);
ARMCI_Barrier();
for (i = 0; i < NINC; i++) {
for (j = 0; j < nproc; j++) {
ARMCI_Rmw(ARMCI_FETCH_AND_ADD, &ival, base_ptrs[j], 1, j);
}
}
ARMCI_Barrier();
ARMCI_Access_begin(base_ptrs[rank]);
if (*(int*) base_ptrs[rank] != NINC*nproc) {
errors++;
printf("%3d -- Got %d, expected %d\n", rank, *(int*) base_ptrs[rank], NINC*nproc);
}
ARMCI_Access_end(base_ptrs[rank]);
armci_msg_igop(&errors, 1, "+");
ARMCI_Free(base_ptrs[rank]);
free(base_ptrs);
/* TYPE = LONG */
base_ptrs = malloc(sizeof(void*)*nproc);
ARMCI_Malloc(base_ptrs, sizeof(long));
ARMCI_Access_begin(base_ptrs[rank]);
*(long*) base_ptrs[rank] = 0;
ARMCI_Access_end(base_ptrs[rank]);
ARMCI_Barrier();
for (i = 0; i < NINC; i++) {
for (j = 0; j < nproc; j++) {
ARMCI_Rmw(ARMCI_FETCH_AND_ADD_LONG, &lval, base_ptrs[j], 1, j);
}
}
ARMCI_Barrier();
ARMCI_Access_begin(base_ptrs[rank]);
if (*(long*) base_ptrs[rank] != NINC*nproc) {
errors++;
printf("%3d -- Got %ld, expected %d\n", rank, *(long*) base_ptrs[rank], NINC*nproc);
}
ARMCI_Access_end(base_ptrs[rank]);
armci_msg_igop(&errors, 1, "+");
if (rank == 0) {
if (errors == 0) printf("Test complete: PASS.\n");
else printf("Test fail: %d errors.\n", errors);
}
ARMCI_Free(base_ptrs[rank]);
free(base_ptrs);
ARMCI_Finalize();
MPI_Finalize();
return 0;
}
|
