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
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
/*
* Copyright (c) 2014-2017 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2014 NVIDIA Corporation. All rights reserved.
* Copyright (c) 2019 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include <string.h>
#include <stdio.h>
#include "coll_cuda.h"
#include "mpi.h"
#include "opal/util/show_help.h"
#include "ompi/constants.h"
#include "ompi/communicator/communicator.h"
#include "ompi/mca/coll/coll.h"
#include "ompi/mca/coll/base/base.h"
#include "coll_cuda.h"
static void mca_coll_cuda_module_construct(mca_coll_cuda_module_t *module)
{
memset(&(module->c_coll), 0, sizeof(module->c_coll));
}
static void mca_coll_cuda_module_destruct(mca_coll_cuda_module_t *module)
{
OBJ_RELEASE(module->c_coll.coll_allreduce_module);
OBJ_RELEASE(module->c_coll.coll_reduce_module);
OBJ_RELEASE(module->c_coll.coll_reduce_local_module);
OBJ_RELEASE(module->c_coll.coll_reduce_scatter_block_module);
OBJ_RELEASE(module->c_coll.coll_scatter_module);
/* If the exscan module is not NULL, then this was an
intracommunicator, and therefore scan will have a module as
well. */
if (NULL != module->c_coll.coll_exscan_module) {
OBJ_RELEASE(module->c_coll.coll_exscan_module);
OBJ_RELEASE(module->c_coll.coll_scan_module);
}
}
OBJ_CLASS_INSTANCE(mca_coll_cuda_module_t, mca_coll_base_module_t,
mca_coll_cuda_module_construct,
mca_coll_cuda_module_destruct);
/*
* Initial query function that is invoked during MPI_INIT, allowing
* this component to disqualify itself if it doesn't support the
* required level of thread support.
*/
int mca_coll_cuda_init_query(bool enable_progress_threads,
bool enable_mpi_threads)
{
/* Nothing to do */
return OMPI_SUCCESS;
}
/*
* Invoked when there's a new communicator that has been created.
* Look at the communicator and decide which set of functions and
* priority we want to return.
*/
mca_coll_base_module_t *
mca_coll_cuda_comm_query(struct ompi_communicator_t *comm,
int *priority)
{
mca_coll_cuda_module_t *cuda_module;
cuda_module = OBJ_NEW(mca_coll_cuda_module_t);
if (NULL == cuda_module) {
return NULL;
}
*priority = mca_coll_cuda_component.priority;
/* Choose whether to use [intra|inter] */
cuda_module->super.coll_module_enable = mca_coll_cuda_module_enable;
cuda_module->super.coll_allgather = NULL;
cuda_module->super.coll_allgatherv = NULL;
cuda_module->super.coll_allreduce = mca_coll_cuda_allreduce;
cuda_module->super.coll_alltoall = NULL;
cuda_module->super.coll_alltoallv = NULL;
cuda_module->super.coll_alltoallw = NULL;
cuda_module->super.coll_barrier = NULL;
cuda_module->super.coll_bcast = NULL;
cuda_module->super.coll_exscan = mca_coll_cuda_exscan;
cuda_module->super.coll_gather = NULL;
cuda_module->super.coll_gatherv = NULL;
cuda_module->super.coll_reduce = mca_coll_cuda_reduce;
cuda_module->super.coll_reduce_local = mca_coll_cuda_reduce_local;
cuda_module->super.coll_reduce_scatter = NULL;
cuda_module->super.coll_reduce_scatter_block = mca_coll_cuda_reduce_scatter_block;
cuda_module->super.coll_scan = mca_coll_cuda_scan;
cuda_module->super.coll_scatter = NULL;
cuda_module->super.coll_scatterv = NULL;
return &(cuda_module->super);
}
/*
* Init module on the communicator
*/
int mca_coll_cuda_module_enable(mca_coll_base_module_t *module,
struct ompi_communicator_t *comm)
{
bool good = true;
char *msg = NULL;
mca_coll_cuda_module_t *s = (mca_coll_cuda_module_t*) module;
#define CHECK_AND_RETAIN(src, dst, name) \
if (NULL == (src)->c_coll->coll_ ## name ## _module) { \
good = false; \
msg = #name; \
} else if (good) { \
(dst)->c_coll.coll_ ## name ## _module = (src)->c_coll->coll_ ## name ## _module; \
(dst)->c_coll.coll_ ## name = (src)->c_coll->coll_ ## name; \
OBJ_RETAIN((src)->c_coll->coll_ ## name ## _module); \
}
CHECK_AND_RETAIN(comm, s, allreduce);
CHECK_AND_RETAIN(comm, s, reduce);
CHECK_AND_RETAIN(comm, s, reduce_local);
CHECK_AND_RETAIN(comm, s, reduce_scatter_block);
CHECK_AND_RETAIN(comm, s, scatter);
if (!OMPI_COMM_IS_INTER(comm)) {
/* MPI does not define scan/exscan on intercommunicators */
CHECK_AND_RETAIN(comm, s, exscan);
CHECK_AND_RETAIN(comm, s, scan);
}
/* All done */
if (good) {
return OMPI_SUCCESS;
}
opal_show_help("help-mpi-coll-cuda.txt", "missing collective", true,
ompi_process_info.nodename,
mca_coll_cuda_component.priority, msg);
return OMPI_ERR_NOT_FOUND;
}
|
