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SMPI: Remove the initialization barrier now that it's useless
[simgrid.git] / src / smpi / smpi_global.c
1 #include <stdio.h>
2
3 #include "private.h"
4
5 XBT_LOG_NEW_CATEGORY(smpi, "All SMPI categories");
6
7 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_kernel, smpi,
8                                 "Logging specific to SMPI (kernel)");
9
10 smpi_global_t smpi_global = NULL;
11
12 void *smpi_request_new(void);
13
14 void *smpi_request_new()
15 {
16   smpi_mpi_request_t request = xbt_new(s_smpi_mpi_request_t, 1);
17
18   request->buf = NULL;
19   request->completed = 0;
20   request->mutex = SIMIX_mutex_init();
21   request->cond = SIMIX_cond_init();
22   request->data = NULL;
23   request->forward = 0;
24
25   return request;
26 }
27
28 void smpi_request_free(void *pointer);
29
30 void smpi_request_free(void *pointer)
31 {
32
33   smpi_mpi_request_t request = pointer;
34
35   SIMIX_cond_destroy(request->cond);
36   SIMIX_mutex_destroy(request->mutex);
37   xbt_free(request);
38
39   return;
40 }
41
42 void smpi_request_reset(void *pointer);
43
44 void smpi_request_reset(void *pointer)
45 {
46   smpi_mpi_request_t request = pointer;
47
48   request->buf = NULL;
49   request->completed = 0;
50   request->data = NULL;
51   request->forward = 0;
52
53   return;
54 }
55
56
57 void *smpi_message_new(void);
58
59 void *smpi_message_new()
60 {
61   smpi_received_message_t message = xbt_new(s_smpi_received_message_t, 1);
62   message->buf = NULL;
63   return message;
64 }
65
66 void smpi_message_free(void *pointer);
67
68 void smpi_message_free(void *pointer)
69 {
70   xbt_free(pointer);
71   return;
72 }
73
74 void smpi_message_reset(void *pointer);
75
76 void smpi_message_reset(void *pointer)
77 {
78   smpi_received_message_t message = pointer;
79   message->buf = NULL;
80   return;
81 }
82
83 int smpi_create_request(void *buf, int count, smpi_mpi_datatype_t datatype,
84                         int src, int dst, int tag,
85                         smpi_mpi_communicator_t comm,
86                         smpi_mpi_request_t * requestptr)
87 {
88   int retval = MPI_SUCCESS;
89
90   smpi_mpi_request_t request = NULL;
91
92   // parameter checking prob belongs in smpi_mpi, but this is less repeat code
93   if (NULL == buf) {
94     retval = MPI_ERR_INTERN;
95   } else if (0 > count) {
96     retval = MPI_ERR_COUNT;
97   } else if (NULL == datatype) {
98     retval = MPI_ERR_TYPE;
99   } else if (MPI_ANY_SOURCE != src && (0 > src || comm->size <= src)) {
100     retval = MPI_ERR_RANK;
101   } else if (0 > dst || comm->size <= dst) {
102     retval = MPI_ERR_RANK;
103   } else if (MPI_ANY_TAG != tag && 0 > tag) {
104     retval = MPI_ERR_TAG;
105   } else if (NULL == comm) {
106     retval = MPI_ERR_COMM;
107   } else if (NULL == requestptr) {
108     retval = MPI_ERR_ARG;
109   } else {
110     request = xbt_mallocator_get(smpi_global->request_mallocator);
111     request->comm = comm;
112     request->src = src;
113     request->dst = dst;
114     request->tag = tag;
115     request->buf = buf;
116     request->datatype = datatype;
117     request->count = count;
118
119     *requestptr = request;
120   }
121   return retval;
122 }
123 /* FIXME: understand what they do and put the prototypes in a header file (live in smpi_base.c) */
124 void smpi_mpi_land_func(void *a, void *b, int *length,
125                         MPI_Datatype * datatype);
126 void smpi_mpi_sum_func(void *a, void *b, int *length,
127                        MPI_Datatype * datatype);
128
129 void smpi_global_init()
130 {
131   int i;
132
133   int size = SIMIX_host_get_number();
134
135   /* Connect our log channels: that must be done manually under windows */
136 #ifdef XBT_LOG_CONNECT
137   XBT_LOG_CONNECT(smpi_base, smpi);
138   XBT_LOG_CONNECT(smpi_bench, smpi);
139   XBT_LOG_CONNECT(smpi_kernel, smpi);
140   XBT_LOG_CONNECT(smpi_mpi, smpi);
141   XBT_LOG_CONNECT(smpi_receiver, smpi);
142   XBT_LOG_CONNECT(smpi_sender, smpi);
143   XBT_LOG_CONNECT(smpi_util, smpi);
144 #endif
145
146   smpi_global = xbt_new(s_smpi_global_t, 1);
147   // config variable
148   smpi_global->reference_speed = SMPI_DEFAULT_SPEED;
149
150   // host info blank until sim starts
151   // FIXME: is this okay?
152   smpi_global->hosts = NULL;
153   smpi_global->host_count = 0;
154
155   // running hosts
156   smpi_global->running_hosts_count_mutex = SIMIX_mutex_init();
157   smpi_global->running_hosts_count = 0;
158
159   // mallocators
160   smpi_global->request_mallocator =
161     xbt_mallocator_new(SMPI_REQUEST_MALLOCATOR_SIZE, smpi_request_new,
162                        smpi_request_free, smpi_request_reset);
163   smpi_global->message_mallocator =
164     xbt_mallocator_new(SMPI_MESSAGE_MALLOCATOR_SIZE, smpi_message_new,
165                        smpi_message_free, smpi_message_reset);
166
167   // queues
168   smpi_global->pending_send_request_queues = xbt_new(xbt_fifo_t, size);
169   smpi_global->pending_send_request_queues_mutexes =
170     xbt_new(smx_mutex_t, size);
171   smpi_global->pending_recv_request_queues = xbt_new(xbt_fifo_t, size);
172   smpi_global->pending_recv_request_queues_mutexes =
173     xbt_new(smx_mutex_t, size);
174   smpi_global->received_message_queues = xbt_new(xbt_fifo_t, size);
175   smpi_global->received_message_queues_mutexes = xbt_new(smx_mutex_t, size);
176
177   // sender/receiver processes
178   smpi_global->sender_processes = xbt_new(smx_process_t, size);
179   smpi_global->receiver_processes = xbt_new(smx_process_t, size);
180
181   // timers
182   smpi_global->timer = xbt_os_timer_new();
183   smpi_global->timer_mutex = SIMIX_mutex_init();
184   smpi_global->timer_cond = SIMIX_cond_init();
185
186   smpi_global->do_once_duration_nodes = NULL;
187   smpi_global->do_once_duration = NULL;
188   smpi_global->do_once_mutex = SIMIX_mutex_init();
189
190   for (i = 0; i < size; i++) {
191     smpi_global->pending_send_request_queues[i] = xbt_fifo_new();
192     smpi_global->pending_send_request_queues_mutexes[i] = SIMIX_mutex_init();
193     smpi_global->pending_recv_request_queues[i] = xbt_fifo_new();
194     smpi_global->pending_recv_request_queues_mutexes[i] = SIMIX_mutex_init();
195     smpi_global->received_message_queues[i] = xbt_fifo_new();
196     smpi_global->received_message_queues_mutexes[i] = SIMIX_mutex_init();
197   }
198
199   smpi_global->hosts = SIMIX_host_get_table();
200   smpi_global->host_count = SIMIX_host_get_number();
201
202   smpi_mpi_global = xbt_new(s_smpi_mpi_global_t, 1);
203
204   // global communicator
205   smpi_mpi_global->mpi_comm_world = xbt_new(s_smpi_mpi_communicator_t, 1);
206   smpi_mpi_global->mpi_comm_world->size = smpi_global->host_count;
207   smpi_mpi_global->mpi_comm_world->barrier_count = 0;
208   smpi_mpi_global->mpi_comm_world->barrier_mutex = SIMIX_mutex_init();
209   smpi_mpi_global->mpi_comm_world->barrier_cond = SIMIX_cond_init();
210   smpi_mpi_global->mpi_comm_world->rank_to_index_map =
211     xbt_new(int, smpi_global->host_count);
212   smpi_mpi_global->mpi_comm_world->index_to_rank_map =
213     xbt_new(int, smpi_global->host_count);
214   for (i = 0; i < smpi_global->host_count; i++) {
215     smpi_mpi_global->mpi_comm_world->rank_to_index_map[i] = i;
216     smpi_mpi_global->mpi_comm_world->index_to_rank_map[i] = i;
217   }
218
219   // mpi datatypes
220   smpi_mpi_global->mpi_byte = xbt_new(s_smpi_mpi_datatype_t, 1);
221   smpi_mpi_global->mpi_byte->size = (size_t) 1;
222   smpi_mpi_global->mpi_int = xbt_new(s_smpi_mpi_datatype_t, 1);
223   smpi_mpi_global->mpi_int->size = sizeof(int);
224   smpi_mpi_global->mpi_double = xbt_new(s_smpi_mpi_datatype_t, 1);
225   smpi_mpi_global->mpi_double->size = sizeof(double);
226
227   // mpi operations
228   smpi_mpi_global->mpi_land = xbt_new(s_smpi_mpi_op_t, 1);
229   smpi_mpi_global->mpi_land->func = smpi_mpi_land_func;
230   smpi_mpi_global->mpi_sum = xbt_new(s_smpi_mpi_op_t, 1);
231   smpi_mpi_global->mpi_sum->func = smpi_mpi_sum_func;
232
233 }
234
235 void smpi_global_destroy()
236 {
237   int i;
238
239   int size = SIMIX_host_get_number();
240
241   smpi_do_once_duration_node_t curr, next;
242
243   // processes
244   xbt_free(smpi_global->sender_processes);
245   xbt_free(smpi_global->receiver_processes);
246
247   // running hosts
248   SIMIX_mutex_destroy(smpi_global->running_hosts_count_mutex);
249
250   // mallocators
251   xbt_mallocator_free(smpi_global->request_mallocator);
252   xbt_mallocator_free(smpi_global->message_mallocator);
253
254   xbt_os_timer_free(smpi_global->timer);
255   SIMIX_mutex_destroy(smpi_global->timer_mutex);
256   SIMIX_cond_destroy(smpi_global->timer_cond);
257
258   for (curr = smpi_global->do_once_duration_nodes; NULL != curr; curr = next) {
259     next = curr->next;
260     xbt_free(curr->file);
261     xbt_free(curr);
262   }
263
264   SIMIX_mutex_destroy(smpi_global->do_once_mutex);
265
266   for (i = 0; i < size; i++) {
267     xbt_fifo_free(smpi_global->pending_send_request_queues[i]);
268     SIMIX_mutex_destroy(smpi_global->pending_send_request_queues_mutexes[i]);
269     xbt_fifo_free(smpi_global->pending_recv_request_queues[i]);
270     SIMIX_mutex_destroy(smpi_global->pending_recv_request_queues_mutexes[i]);
271     xbt_fifo_free(smpi_global->received_message_queues[i]);
272     SIMIX_mutex_destroy(smpi_global->received_message_queues_mutexes[i]);
273   }
274
275   xbt_free(smpi_global->pending_send_request_queues);
276   xbt_free(smpi_global->pending_send_request_queues_mutexes);
277   xbt_free(smpi_global->pending_recv_request_queues);
278   xbt_free(smpi_global->pending_recv_request_queues_mutexes);
279   xbt_free(smpi_global->received_message_queues);
280   xbt_free(smpi_global->received_message_queues_mutexes);
281
282   xbt_free(smpi_global);
283
284   smpi_global = NULL;
285 }
286
287 int smpi_host_index()
288 {
289   smx_host_t host = SIMIX_host_self();
290   smpi_host_data_t hdata = (smpi_host_data_t) SIMIX_host_get_data(host);
291   return hdata->index;
292 }
293
294 smx_mutex_t smpi_host_mutex()
295 {
296   smx_host_t host = SIMIX_host_self();
297   smpi_host_data_t hdata = (smpi_host_data_t) SIMIX_host_get_data(host);
298   return hdata->mutex;
299 }
300
301 smx_cond_t smpi_host_cond()
302 {
303   smx_host_t host = SIMIX_host_self();
304   smpi_host_data_t hdata = (smpi_host_data_t) SIMIX_host_get_data(host);
305   return hdata->cond;
306 }
307
308 int smpi_run_simulation(int *argc, char **argv)
309 {
310   smx_cond_t cond = NULL;
311   smx_action_t action = NULL;
312
313   xbt_fifo_t actions_failed = xbt_fifo_new();
314   xbt_fifo_t actions_done = xbt_fifo_new();
315
316   srand(SMPI_RAND_SEED);
317
318   SIMIX_global_init(argc, argv);
319
320   // parse the platform file: get the host list
321   SIMIX_create_environment(argv[1]);
322
323   SIMIX_function_register("smpi_simulated_main", smpi_simulated_main);
324   SIMIX_function_register("smpi_sender", smpi_sender);
325   SIMIX_function_register("smpi_receiver", smpi_receiver);
326   SIMIX_launch_application(argv[2]);
327
328   // must initialize globals between creating environment and launching app....
329   smpi_global_init();
330
331   /* Prepare to display some more info when dying on Ctrl-C pressing */
332   // FIXME: doesn't work
333   //signal(SIGINT, inthandler);
334
335   /* Clean IO before the run */
336   fflush(stdout);
337   fflush(stderr);
338   SIMIX_init();
339
340   while (SIMIX_solve(actions_done, actions_failed) != -1.0) {
341     while ((action = xbt_fifo_pop(actions_failed))) {
342       DEBUG1("** %s failed **", action->name);
343       while ((cond = xbt_fifo_pop(action->cond_list))) {
344         SIMIX_cond_broadcast(cond);
345       }
346     }
347     while ((action = xbt_fifo_pop(actions_done))) {
348       DEBUG1("** %s done **", action->name);
349       while ((cond = xbt_fifo_pop(action->cond_list))) {
350         SIMIX_cond_broadcast(cond);
351       }
352     }
353   }
354
355   // FIXME: cleanup incomplete
356   xbt_fifo_free(actions_failed);
357   xbt_fifo_free(actions_done);
358
359   INFO1("simulation time %g", SIMIX_get_clock());
360
361   smpi_global_destroy();
362
363   SIMIX_clean();
364
365   return 0;
366 }