OpenMPI 0.1.1

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osc_pt2pt_sendreq.h
1 /*
2 * Copyright (c) 2004-2005 The Trustees of Indiana University.
3 * All rights reserved.
4 * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
5 * All rights reserved.
6 * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
7 * University of Stuttgart. All rights reserved.
8 * Copyright (c) 2004-2005 The Regents of the University of California.
9 * All rights reserved.
10 * Copyright (c) 2010 Cisco Systems, Inc. All rights reserved.
11 * $COPYRIGHT$
12 *
13 * Additional copyrights may follow
14 *
15 * $HEADER$
16 */
17
18 #ifndef OMPI_OSC_PT2PT_SENDREQ_H
19 #define OMPI_OSC_PT2PT_SENDREQ_H
20
21 #include "osc_pt2pt.h"
22 #include "osc_pt2pt_longreq.h"
23
24 #include "opal/class/opal_list.h"
25 #include "ompi/datatype/ompi_datatype.h"
26 #include "opal/datatype/opal_convertor.h"
27 #include "ompi/communicator/communicator.h"
28 #include "ompi/proc/proc.h"
29 #include "ompi/memchecker.h"
30
31 typedef enum {
32 OMPI_OSC_PT2PT_GET,
33 OMPI_OSC_PT2PT_ACC,
34 OMPI_OSC_PT2PT_PUT
35 } ompi_osc_pt2pt_req_type_t;
36
37
38 struct ompi_osc_pt2pt_sendreq_t {
39 ompi_request_t super;
40
41 /** type of sendreq (from ompi_osc_pt2pt_req_type_t) */
42 ompi_osc_pt2pt_req_type_t req_type;
43 /** pointer to the module that created the sendreq */
44 ompi_osc_pt2pt_module_t *req_module;
45
46 /** Datatype for the origin side of the operation */
47 struct ompi_datatype_t *req_origin_datatype;
48 /** Convertor for the origin side of the operation. Setup for
49 either send (Put / Accumulate) or receive (Get) */
50 opal_convertor_t req_origin_convertor;
51 /** packed size of message on the origin side */
52 size_t req_origin_bytes_packed;
53
54 /** rank in module's communicator for target of operation */
55 int req_target_rank;
56 /** pointer to the proc structure for the target of the operation */
57 ompi_proc_t *req_target_proc;
58
59 /** displacement on target */
60 OPAL_PTRDIFF_TYPE req_target_disp;
61 /** datatype count on target */
62 int req_target_count;
63 /** datatype on target */
64 struct ompi_datatype_t *req_target_datatype;
65
66 /** op index on the target */
67 int req_op_id;
68 };
69 typedef struct ompi_osc_pt2pt_sendreq_t ompi_osc_pt2pt_sendreq_t;
70 OBJ_CLASS_DECLARATION(ompi_osc_pt2pt_sendreq_t);
71
72
73 /** allocate and populate a sendreq structure. Both datatypes are
74 RETAINed for the life of the sendreq */
75 int
76 ompi_osc_pt2pt_sendreq_alloc_init(ompi_osc_pt2pt_req_type_t req_type,
77 void *origin_addr, int origin_count,
78 struct ompi_datatype_t *origin_dt,
79 int target,
80 OPAL_PTRDIFF_TYPE target_disp,
81 int target_count,
82 struct ompi_datatype_t *target_datatype,
83 ompi_osc_pt2pt_module_t *module,
84 ompi_osc_pt2pt_sendreq_t **sendreq);
85
86 static inline int
87 ompi_osc_pt2pt_sendreq_alloc(ompi_osc_pt2pt_module_t *module,
88 int target_rank,
89 ompi_osc_pt2pt_sendreq_t **sendreq)
90 {
91 int ret;
92 opal_free_list_item_t *item;
93 ompi_proc_t *proc = ompi_comm_peer_lookup( module->p2p_comm, target_rank );
94
95 /* BWB - FIX ME - is this really the right return code? */
96 if (NULL == proc) return OMPI_ERR_OUT_OF_RESOURCE;
97
98 OPAL_FREE_LIST_GET(&mca_osc_pt2pt_component.p2p_c_sendreqs,
99 item, ret);
100 if (OMPI_SUCCESS != ret) return ret;
101 *sendreq = (ompi_osc_pt2pt_sendreq_t*) item;
102
103 (*sendreq)->req_module = module;
104 (*sendreq)->req_target_rank = target_rank;
105 (*sendreq)->req_target_proc = proc;
106
107 return OMPI_SUCCESS;
108 }
109
110
111 static inline int
112 ompi_osc_pt2pt_sendreq_init_origin(ompi_osc_pt2pt_sendreq_t *sendreq,
113 ompi_osc_pt2pt_req_type_t req_type,
114 void *origin_addr,
115 int origin_count,
116 struct ompi_datatype_t *origin_dt)
117 {
118 OBJ_RETAIN(origin_dt);
119 sendreq->req_origin_datatype = origin_dt;
120 sendreq->req_type = req_type;
121
122 if (req_type != OMPI_OSC_PT2PT_GET) {
123 opal_convertor_copy_and_prepare_for_send(sendreq->req_target_proc->proc_convertor,
124 &(origin_dt->super),
125 origin_count,
126 origin_addr,
127 0,
128 &(sendreq->req_origin_convertor));
129 opal_convertor_get_packed_size(&sendreq->req_origin_convertor,
130 &sendreq->req_origin_bytes_packed);
131 } else {
132 opal_convertor_copy_and_prepare_for_recv(sendreq->req_target_proc->proc_convertor,
133 &(origin_dt->super),
134 origin_count,
135 origin_addr,
136 0,
137 &(sendreq->req_origin_convertor));
138 opal_convertor_get_packed_size(&sendreq->req_origin_convertor,
139 &sendreq->req_origin_bytes_packed);
140 }
141
142 return OMPI_SUCCESS;
143 }
144
145
146 static inline int
147 ompi_osc_pt2pt_sendreq_init_target(ompi_osc_pt2pt_sendreq_t *sendreq,
148 OPAL_PTRDIFF_TYPE target_disp,
149 int target_count,
150 struct ompi_datatype_t *target_datatype)
151 {
152 OBJ_RETAIN(target_datatype);
153
154 sendreq->req_target_disp = target_disp;
155 sendreq->req_target_count = target_count;
156 sendreq->req_target_datatype = target_datatype;
157
158 return OMPI_SUCCESS;
159 }
160
161
162 static inline int
163 ompi_osc_pt2pt_sendreq_free(ompi_osc_pt2pt_sendreq_t *sendreq)
164 {
165 MEMCHECKER(
166 memchecker_convertor_call(&opal_memchecker_base_mem_defined,
167 &sendreq->req_origin_convertor);
168 );
169 opal_convertor_cleanup(&sendreq->req_origin_convertor);
170
171 OBJ_RELEASE(sendreq->req_target_datatype);
172 OBJ_RELEASE(sendreq->req_origin_datatype);
173
174 OPAL_FREE_LIST_RETURN(&mca_osc_pt2pt_component.p2p_c_sendreqs,
175 (opal_list_item_t*) sendreq);
176
177 return OMPI_SUCCESS;
178 }
179
180 #endif /* OMPI_OSC_PT2PT_SENDREQ_H */
ompi_osc_pt2pt_sendreq_t::req_type
ompi_osc_pt2pt_req_type_t req_type
type of sendreq (from ompi_osc_pt2pt_req_type_t)
Definition: osc_pt2pt_sendreq.h:42
ompi_datatype_t
Definition: ompi_datatype.h:68
ompi_osc_pt2pt_sendreq_t::req_op_id
int req_op_id
op index on the target
Definition: osc_pt2pt_sendreq.h:67
ompi_osc_pt2pt_sendreq_t::req_module
ompi_osc_pt2pt_module_t * req_module
pointer to the module that created the sendreq
Definition: osc_pt2pt_sendreq.h:44
ompi_osc_pt2pt_module_t
Definition: osc_pt2pt.h:57
ompi_osc_pt2pt_sendreq_t::req_origin_datatype
struct ompi_datatype_t * req_origin_datatype
Datatype for the origin side of the operation.
Definition: osc_pt2pt_sendreq.h:47
opal_list.h
The opal_list_t interface is used to provide a generic doubly-linked list container for Open MPI...
proc.h
Process identification structure interface.
ompi_proc_t
Remote Open MPI process structure.
Definition: proc.h:56
ompi_osc_pt2pt_sendreq_t::req_origin_bytes_packed
size_t req_origin_bytes_packed
packed size of message on the origin side
Definition: osc_pt2pt_sendreq.h:52
OBJ_RETAIN
#define OBJ_RETAIN(object)
Retain an object (by incrementing its reference count)
Definition: opal_object.h:278
ompi_osc_pt2pt_sendreq_t::req_origin_convertor
opal_convertor_t req_origin_convertor
Convertor for the origin side of the operation.
Definition: osc_pt2pt_sendreq.h:50
ompi_osc_pt2pt_sendreq_t::req_target_disp
OPAL_PTRDIFF_TYPE req_target_disp
displacement on target
Definition: osc_pt2pt_sendreq.h:60
opal_list_item_t
Definition: opal_list.h:98
ompi_osc_pt2pt_sendreq_t::req_target_proc
ompi_proc_t * req_target_proc
pointer to the proc structure for the target of the operation
Definition: osc_pt2pt_sendreq.h:57
OBJ_RELEASE
#define OBJ_RELEASE(object)
Release an object (by decrementing its reference count).
Definition: opal_object.h:324
opal_free_list_item_t
Definition: opal_free_list.h:47
ompi_osc_pt2pt_sendreq_t
Definition: osc_pt2pt_sendreq.h:38
ompi_datatype_t::super
opal_datatype_t super
Base opal_datatype_t superclass.
Definition: ompi_datatype.h:69
ompi_osc_pt2pt_component_t::p2p_c_sendreqs
opal_free_list_t p2p_c_sendreqs
free list of ompi_osc_pt2pt_sendreq_t structures
Definition: osc_pt2pt.h:46
ompi_osc_pt2pt_sendreq_t::req_target_count
int req_target_count
datatype count on target
Definition: osc_pt2pt_sendreq.h:62
ompi_osc_pt2pt_module_t::p2p_comm
ompi_communicator_t * p2p_comm
communicator created with this window
Definition: osc_pt2pt.h:74
opal_convertor_t
Definition: opal_convertor.h:90
ompi_proc_t::proc_convertor
struct opal_convertor_t * proc_convertor
Base convertor for the proc described by this process.
Definition: proc.h:70
ompi_osc_pt2pt_sendreq_t::req_target_rank
int req_target_rank
rank in module's communicator for target of operation
Definition: osc_pt2pt_sendreq.h:55
ompi_osc_pt2pt_sendreq_t::req_target_datatype
struct ompi_datatype_t * req_target_datatype
datatype on target
Definition: osc_pt2pt_sendreq.h:64
ompi_request_t
Main top-level request struct definition.
Definition: request.h:100
OBJ_CLASS_DECLARATION
#define OBJ_CLASS_DECLARATION(NAME)
Declaration for class descriptor.
Definition: opal_object.h:236