modelnet-test.c 11.3 KB
Newer Older
1
/*
Philip Carns's avatar
Philip Carns committed
2
 * Copyright (C) 2013 University of Chicago.
3
 * See COPYRIGHT notice in top-level directory.
Philip Carns's avatar
Philip Carns committed
4
 *
5
6
7
8
 */

/* SUMMARY:
 *
9
 * This is a test harness for the modelnet module.  It sets up a number of
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
 * servers, each of which is paired up with a simplenet LP to serve as the
 * NIC.  Each server exchanges a sequence of requests and acks with one peer
 * and measures the throughput in terms of payload bytes (ack size) moved
 * per second.
 */

#include <string.h>
#include <assert.h>
#include <ross.h>

#include "codes/model-net.h"
#include "codes/lp-io.h"
#include "codes/codes.h"
#include "codes/codes_mapping.h"
#include "codes/configuration.h"
#include "codes/lp-type-lookup.h"

27
#define NUM_REQS 500  /* number of requests sent by each server */
28
29
30
#define PAYLOAD_SZ 2048 /* size of simulated data payload, bytes  */

static int net_id = 0;
31
32
33
static int num_routers = 0;
static int num_servers = 0;
static int offset = 2;
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

typedef struct svr_msg svr_msg;
typedef struct svr_state svr_state;

/* types of events that will constitute triton requests */
enum svr_event
{
    KICKOFF,    /* initial event */
    REQ,        /* request event */
    ACK,        /* ack event */
    LOCAL      /* local event */
};

struct svr_state
{
    int msg_sent_count;   /* requests sent */
    int msg_recvd_count;  /* requests recvd */
    int local_recvd_count; /* number of local messages received */
    tw_stime start_ts;    /* time that we started sending requests */
};

struct svr_msg
{
    enum svr_event svr_event_type;
//    enum net_event net_event_type; 
    tw_lpid src;          /* source of this request or ack */

    int incremented_flag; /* helper for reverse computation */
};

static void svr_init(
    svr_state * ns,
    tw_lp * lp);
static void svr_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp);
static void svr_rev_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp);
static void svr_finalize(
    svr_state * ns,
    tw_lp * lp);

tw_lptype svr_lp = {
     (init_f) svr_init,
     (event_f) svr_event,
     (revent_f) svr_rev_event,
     (final_f)  svr_finalize, 
     (map_f) codes_mapping,
     sizeof(svr_state),
};

extern const tw_lptype* svr_get_lp_type();
static void svr_add_lp_type();
static tw_stime ns_to_s(tw_stime ns);
static tw_stime s_to_ns(tw_stime ns);
static void handle_kickoff_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp);
static void handle_ack_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp);
static void handle_req_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp);
static void handle_local_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
   tw_lp * lp);
static void handle_local_rev_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
   tw_lp * lp);
static void handle_kickoff_rev_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp);
static void handle_ack_rev_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp);
static void handle_req_rev_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp);
134
135
136
137
138
139
140

const tw_optdef app_opt [] =
{
	TWOPT_GROUP("Model net test case" ),
	TWOPT_END()
};

141
142
143
144
145
146
147
148
149
150
151
152
int main(
    int argc,
    char **argv)
{
    int nprocs;
    int rank;
    //printf("\n Config count %d ",(int) config.lpgroups_count);
    g_tw_ts_end = s_to_ns(60*60*24*365); /* one year, in nsecs */

    tw_opt_add(app_opt);
    tw_init(&argc, &argv);

153
    if(argc < 2)
154
    {
155
	    printf("\n Usage: mpirun <args> --sync=2/3 mapping_file_name.conf (optional --nkp) ");
156
	    MPI_Finalize();
157
	    return 0;
158
159
160
161
    }
    MPI_Comm_rank(MPI_COMM_WORLD, &rank);
    MPI_Comm_size(MPI_COMM_WORLD, &nprocs);
  
162
163
    configuration_load(argv[2], MPI_COMM_WORLD, &config);
    net_id=model_net_set_params();
164
    svr_add_lp_type();
165
166
167
    
    codes_mapping_setup();
    
168
169
    num_servers = codes_mapping_get_group_reps("MODELNET_GRP") * codes_mapping_get_lp_count("MODELNET_GRP", "server");
    if(net_id == DRAGONFLY)
170
    {
171
172
	  num_routers = codes_mapping_get_group_reps("MODELNET_GRP") * codes_mapping_get_lp_count("MODELNET_GRP", "dragonfly_router"); 
	  offset = 1;
173
    }
174

175
    tw_run();
176
177
    model_net_report_stats(net_id);

178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
    tw_end();
    return 0;
}

const tw_lptype* svr_get_lp_type()
{
	    return(&svr_lp);
}

static void svr_add_lp_type()
{
  lp_type_register("server", svr_get_lp_type());
}

static void svr_init(
    svr_state * ns,
    tw_lp * lp)
{
    tw_event *e;
    svr_msg *m;
    tw_stime kickoff_time;
    
    memset(ns, 0, sizeof(*ns));

    /* each server sends a dummy event to itself that will kick off the real
     * simulation
     */

206
    //printf("\n Initializing servers %d ", (int)lp->gid);
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
    /* skew each kickoff event slightly to help avoid event ties later on */
    kickoff_time = g_tw_lookahead + tw_rand_unif(lp->rng); 

    e = codes_event_new(lp->gid, kickoff_time, lp);
    m = tw_event_data(e);
    m->svr_event_type = KICKOFF;
    tw_event_send(e);

    return;
}

static void svr_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp)
{
   switch (m->svr_event_type)
    {
        case REQ:
            handle_req_event(ns, b, m, lp);
            break;
        case ACK:
            handle_ack_event(ns, b, m, lp);
            break;
        case KICKOFF:
            handle_kickoff_event(ns, b, m, lp);
            break;
	case LOCAL:
	   handle_local_event(ns, b, m, lp); 
	 break;
        default:
	    printf("\n Invalid message type %d ", m->svr_event_type);
            assert(0);
        break;
    }
}

static void svr_rev_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp)
{
    switch (m->svr_event_type)
    {
        case REQ:
            handle_req_rev_event(ns, b, m, lp);
            break;
        case ACK:
            handle_ack_rev_event(ns, b, m, lp);
            break;
        case KICKOFF:
            handle_kickoff_rev_event(ns, b, m, lp);
            break;
	case LOCAL:
	    handle_local_rev_event(ns, b, m, lp);    
	    break;
        default:
            assert(0);
            break;
    }

    return;
}

static void svr_finalize(
    svr_state * ns,
    tw_lp * lp)
{
277
    printf("server %llu recvd %d bytes in %f seconds, %f MiB/s sent_count %d recvd_count %d local_count %d \n", (unsigned long long)lp->gid, PAYLOAD_SZ*ns->msg_recvd_count, ns_to_s((tw_now(lp)-ns->start_ts)), 
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
        ((double)(PAYLOAD_SZ*NUM_REQS)/(double)(1024*1024)/ns_to_s(tw_now(lp)-ns->start_ts)), ns->msg_sent_count, ns->msg_recvd_count, ns->local_recvd_count);
    return;
}

/* convert ns to seconds */
static tw_stime ns_to_s(tw_stime ns)
{
    return(ns / (1000.0 * 1000.0 * 1000.0));
}

/* convert seconds to ns */
static tw_stime s_to_ns(tw_stime ns)
{
    return(ns * (1000.0 * 1000.0 * 1000.0));
}

/* handle initial event */
static void handle_kickoff_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp)
{
    svr_msg * m_local = malloc(sizeof(svr_msg));
    svr_msg * m_remote = malloc(sizeof(svr_msg));

//    m_local->svr_event_type = REQ;
    m_local->svr_event_type = LOCAL;
    m_local->src = lp->gid;

    memcpy(m_remote, m_local, sizeof(svr_msg));
    m_remote->svr_event_type = REQ;
    //printf("handle_kickoff_event(), lp %llu.\n", (unsigned long long)lp->gid);

    /* record when transfers started on this server */
    ns->start_ts = tw_now(lp);

315
316
317
318
    int opt_offset = 0;
    if(net_id == DRAGONFLY && lp->gid % 5)
	  opt_offset = 3; /* optional offset due to dragonfly mapping */
    
319
    /* each server sends a request to the next highest server */
320
321
    int dest_id = (lp->gid + offset + opt_offset)%(num_servers*2 + num_routers);
    model_net_event(net_id, "test", dest_id, PAYLOAD_SZ, sizeof(svr_msg), (const void*)m_remote, sizeof(svr_msg), (const void*)m_local, lp);
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
    ns->msg_sent_count++;
}

static void handle_local_event(
		svr_state * ns,
		tw_bf * b,
		svr_msg * m,
		tw_lp * lp)
{
    ns->local_recvd_count++;
}

static void handle_local_rev_event(
	       svr_state * ns,
	       tw_bf * b,
	       svr_msg * m,
	       tw_lp * lp)
{
   ns->local_recvd_count--;
}
/* reverse handler for req event */
static void handle_req_rev_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp)
{
    ns->msg_recvd_count--;
    model_net_event_rc(net_id, lp, PAYLOAD_SZ);

    return;
}


/* reverse handler for kickoff */
static void handle_kickoff_rev_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp)
{
    ns->msg_sent_count--;
    model_net_event_rc(net_id, lp, PAYLOAD_SZ);

    return;
}

/* reverse handler for ack*/
static void handle_ack_rev_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp)
{
    if(m->incremented_flag)
    {
        model_net_event_rc(net_id, lp, PAYLOAD_SZ);
        ns->msg_sent_count--;
    }
    return;
}

/* handle recving ack */
static void handle_ack_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp)
{
    svr_msg * m_local = malloc(sizeof(svr_msg));
    svr_msg * m_remote = malloc(sizeof(svr_msg));

//    m_local->svr_event_type = REQ;
    m_local->svr_event_type = LOCAL;
    m_local->src = lp->gid;

    memcpy(m_remote, m_local, sizeof(svr_msg));
    m_remote->svr_event_type = REQ;

//    printf("handle_ack_event(), lp %llu.\n", (unsigned long long)lp->gid);

    /* safety check that this request got to the right server */
//    printf("\n m->src %d lp->gid %d ", m->src, lp->gid);
405
406
407
408
409
    int opt_offset = 0;
    if(net_id == DRAGONFLY && lp->gid % 5)
	 opt_offset = 3;

    assert(m->src == (lp->gid + offset + opt_offset)%(num_servers*2 + num_routers));
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443

    if(ns->msg_sent_count < NUM_REQS)
    {
        /* send another request */
	model_net_event(net_id, "test", m->src, PAYLOAD_SZ, sizeof(svr_msg), (const void*)m_remote, sizeof(svr_msg), (const void*)m_local, lp);
        ns->msg_sent_count++;
        m->incremented_flag = 1;
    }
    else
    {
        m->incremented_flag = 0;
    }

    return;
}

/* handle receiving request */
static void handle_req_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp)
{
    svr_msg * m_local = malloc(sizeof(svr_msg));
    svr_msg * m_remote = malloc(sizeof(svr_msg));

    m_local->svr_event_type = LOCAL;
    m_local->src = lp->gid;

    memcpy(m_remote, m_local, sizeof(svr_msg));
    m_remote->svr_event_type = ACK;
    //printf("handle_req_event(), lp %llu src %llu .\n", (unsigned long long)lp->gid, (unsigned long long) m->src);

    /* safety check that this request got to the right server */
444
//    printf("\n m->src %d lp->gid %d ", m->src, lp->gid);
445
446
447
448
449
    int opt_offset = 0;
    if(net_id == DRAGONFLY && (m->src % 5))
	  opt_offset = 3; /* optional offset due to dragonfly mapping */
    
    assert(lp->gid == (m->src + offset + opt_offset)%(num_servers*2 + num_routers));
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
    ns->msg_recvd_count++;

    /* send ack back */
    /* simulated payload of 1 MiB */
    /* also trigger a local event for completion of payload msg */
    /* remote host will get an ack event */
   
   // mm Q: What should be the size of an ack message? may be a few bytes? or larger..? 
    model_net_event(net_id, "test", m->src, PAYLOAD_SZ, sizeof(svr_msg), (const void*)m_remote, sizeof(svr_msg), (const void*)m_local, lp);
//    printf("\n Sending ack to LP %d %d ", m->src, m_remote->src);
    return;
}

/*
 * Local variables:
 *  c-indent-level: 4
 *  c-basic-offset: 4
 * End:
 
 m_remote->src = lp->gid;*
 * vim: ft=c ts=8 sts=4 sw=4 expandtab
 */