model-net-synthetic.c 11.2 KB
Newer Older
1 2 3 4 5 6 7 8
/*
 * Copyright (C) 2015 University of Chicago.
 * See COPYRIGHT notice in top-level directory.
 *
 */

/*
* The test program generates some synthetic traffic patterns for the model-net network models.
9
* currently it only support the dragonfly network model uniform random and nearest neighbor traffic patterns.
10 11 12 13 14 15 16 17 18
*/

#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"

19
#define PAYLOAD_SZ 2048
20 21 22 23 24 25 26

static int net_id = 0;
static int traffic = 1;
static double arrival_time = 1000.0;

/* whether to pull instead of push */
static int num_servers_per_rep = 0;
27 28 29 30
static int num_routers_per_grp = 0;
static int num_nodes_per_grp = 0;
static int num_groups = 0;
static int num_nodes = 0;
31

32 33 34 35 36
static char lp_io_dir[256] = {'\0'};
static lp_io_handle io_handle;
static unsigned int lp_io_use_suffix = 0;
static int do_lp_io = 0;
static int num_msgs = 20;
37 38
static unsigned int sampling_interval = 800000;
static unsigned int sampling_end_time = 1600000;
39

40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58
typedef struct svr_msg svr_msg;
typedef struct svr_state svr_state;

/* global variables for codes mapping */
static char group_name[MAX_NAME_LENGTH];
static char lp_type_name[MAX_NAME_LENGTH];
static int group_index, lp_type_index, rep_id, offset;

/* type of events */
enum svr_event
{
    KICKOFF,	   /* kickoff event */
    REMOTE,        /* remote event */
    LOCAL      /* local event */
};

/* type of synthetic traffic */
enum TRAFFIC
{
59 60 61
	UNIFORM = 1, /* sends message to a randomly selected node */
	NEAREST_GROUP = 2, /* sends message to the node connected to the neighboring router */
	NEAREST_NEIGHBOR = 3 /* sends message to the next node (potentially connected to the same router) */
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
};

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 */
    tw_stime end_ts;      /* time that we ended sending requests */
};

struct svr_msg
{
    enum svr_event svr_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,
    (pre_run_f) NULL,
    (event_f) svr_event,
    (revent_f) svr_rev_event,
102
    (commit_f) NULL,
103 104 105 106 107
    (final_f)  svr_finalize,
    (map_f) codes_mapping,
    sizeof(svr_state),
};

108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131
void rb_svr_event_collect(svr_msg *m, char *buffer)
{
    int type = (int) m->svr_event_type;
    memcpy(buffer, &type, sizeof(type));
}

st_event_collect svr_event_types[] = {
    {(rbev_col_f) rb_svr_event_collect,
     sizeof(int),
     (ev_col_f) NULL,
     0},
    {0}
};

static const st_event_collect  *svr_get_event_type(void)
{
    return(&svr_event_types[0]);
}

void svr_register_evcol()
{
    ev_type_register("server", svr_get_event_type());
}

132 133 134
const tw_optdef app_opt [] =
{
        TWOPT_GROUP("Model net synthetic traffic " ),
135 136
    	TWOPT_UINT("traffic", traffic, "UNIFORM RANDOM=1, NEAREST NEIGHBOR=2 "),
    	TWOPT_UINT("num_messages", num_msgs, "Number of messages to be generated per terminal "),
137 138
    	TWOPT_UINT("sampling-interval", sampling_interval, "the sampling interval "),
    	TWOPT_UINT("sampling-end-time", sampling_end_time, "sampling end time "),
139 140 141
	    TWOPT_STIME("arrival_time", arrival_time, "INTER-ARRIVAL TIME"),
        TWOPT_CHAR("lp-io-dir", lp_io_dir, "Where to place io output (unspecified -> no output"),
        TWOPT_UINT("lp-io-use-suffix", lp_io_use_suffix, "Whether to append uniq suffix to lp-io directory (default 0)"),
142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167
        TWOPT_END()
};

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 issue_event(
    svr_state * ns,
    tw_lp * lp)
{
    tw_event *e;
    svr_msg *m;
    tw_stime kickoff_time;

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

    /* skew each kickoff event slightly to help avoid event ties later on */
168
    kickoff_time = 1.1 * g_tw_lookahead + tw_rand_exponential(lp->rng, arrival_time);
169 170 171 172 173 174 175 176 177 178 179

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

static void svr_init(
    svr_state * ns,
    tw_lp * lp)
{
180 181
    ns->start_ts = 0.0;

182 183 184 185 186 187 188 189 190 191
    issue_event(ns, lp);
    return;
}

static void handle_kickoff_rev_event(
            svr_state * ns,
            tw_bf * b,
            svr_msg * m,
            tw_lp * lp)
{
192 193 194
    if(m->incremented_flag)
        return;

195 196
    if(b->c1)
        tw_rand_reverse_unif(lp->rng);
197

198
    model_net_event_rc(net_id, lp, PAYLOAD_SZ);
199
	ns->msg_sent_count--;
200
    tw_rand_reverse_unif(lp->rng);
201
}
202 203 204 205 206 207
static void handle_kickoff_event(
	    svr_state * ns,
	    tw_bf * b,
	    svr_msg * m,
	    tw_lp * lp)
{
208
    if(ns->msg_sent_count >= num_msgs)
209 210 211 212
    {
        m->incremented_flag = 1;
        return;
    }
213 214 215 216

    m->incremented_flag = 0;

    char anno[MAX_NAME_LENGTH];
217
    tw_lpid local_dest = -1, global_dest = -1;
218

219 220 221 222 223 224 225 226 227 228 229
    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 = REMOTE;

    assert(net_id == DRAGONFLY); /* only supported for dragonfly model right now. */
    ns->start_ts = tw_now(lp);
230 231
    codes_mapping_get_lp_info(lp->gid, group_name, &group_index, lp_type_name, &lp_type_index, anno, &rep_id, &offset);
    int local_id = codes_mapping_get_lp_relative_id(lp->gid, 0, 0);
232

233 234 235
   /* in case of uniform random traffic, send to a random destination. */
   if(traffic == UNIFORM)
   {
236
    b->c1 = 1;
237 238
   	local_dest = tw_rand_integer(lp->rng, 0, num_nodes - 1);
   }
239
   else if(traffic == NEAREST_GROUP)
240
   {
241 242
	local_dest = (local_id + num_nodes_per_grp) % num_nodes;
	//printf("\n LP %ld sending to %ld num nodes %d ", local_id, local_dest, num_nodes);
243
   }
244 245
   else if(traffic == NEAREST_NEIGHBOR)
   {
246
	local_dest =  (local_id + 1) % num_nodes;
247 248
//	 printf("\n LP %ld sending to %ld num nodes %d ", rep_id * 2 + offset, local_dest, num_nodes);
   }
249
   assert(local_dest < num_nodes);
250 251
//   codes_mapping_get_lp_id(group_name, lp_type_name, anno, 1, local_dest / num_servers_per_rep, local_dest % num_servers_per_rep, &global_dest);
   global_dest = codes_mapping_get_lpid_from_relative(local_dest, group_name, lp_type_name, NULL, 0);
252 253
   ns->msg_sent_count++;
   model_net_event(net_id, "test", global_dest, PAYLOAD_SZ, 0.0, sizeof(svr_msg), (const void*)m_remote, sizeof(svr_msg), (const void*)m_local, lp);
254

255 256 257 258 259
   issue_event(ns, lp);
   return;
}

static void handle_remote_rev_event(
260
            svr_state * ns,
261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390
            tw_bf * b,
            svr_msg * m,
            tw_lp * lp)
{
        ns->msg_recvd_count--;
}

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

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

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

static void svr_finalize(
    svr_state * ns,
    tw_lp * lp)
{
    ns->end_ts = tw_now(lp);

    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(ns->end_ts-ns->start_ts),
        ((double)(PAYLOAD_SZ*ns->msg_sent_count)/(double)(1024*1024)/ns_to_s(ns->end_ts-ns->start_ts)), ns->msg_sent_count, ns->msg_recvd_count, ns->local_recvd_count);
    return;
}

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

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

int main(
    int argc,
    char **argv)
{
    int nprocs;
    int rank;
    int num_nets;
    int *net_ids;

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

    if(argc < 2)
    {
            printf("\n Usage: mpirun <args> --sync=2/3 mapping_file_name.conf (optional --nkp) ");
            MPI_Finalize();
            return 0;
    }

    MPI_Comm_rank(MPI_COMM_WORLD, &rank);
    MPI_Comm_size(MPI_COMM_WORLD, &nprocs);

    configuration_load(argv[2], MPI_COMM_WORLD, &config);

    model_net_register();
    svr_add_lp_type();

391 392 393 394 395 396 397
    if (g_st_ev_rb_collect)
    {
        dragonfly_register_evcol();
        router_register_evcol();
        svr_register_evcol();
    }

398 399 400
    codes_mapping_setup();

    net_ids = model_net_configure(&num_nets);
401
    //assert(num_nets==1);
402 403 404
    net_id = *net_ids;
    free(net_ids);

405 406
    /* 5 days of simulation time */
    g_tw_ts_end = s_to_ns(5 * 24 * 60 * 60);
407
    model_net_enable_sampling(sampling_interval, sampling_end_time);
408

409
    if(net_id != DRAGONFLY)
410
    {
411 412 413
	printf("\n The test works with dragonfly model configuration only! ");
        MPI_Finalize();
        return 0;
414
    }
415 416
    num_servers_per_rep = codes_mapping_get_lp_count("MODELNET_GRP", 1, "server",
            NULL, 1);
417
    configuration_get_value_int(&config, "PARAMS", "num_routers", NULL, &num_routers_per_grp);
418

419 420 421
    num_groups = (num_routers_per_grp * (num_routers_per_grp/2) + 1);
    num_nodes = num_groups * num_routers_per_grp * (num_routers_per_grp / 2);
    num_nodes_per_grp = num_routers_per_grp * (num_routers_per_grp / 2);
422

Misbah Mubarak's avatar
Misbah Mubarak committed
423 424
    assert(num_nodes);

425
    if(lp_io_dir[0])
426
    {
427 428 429 430
        do_lp_io = 1;
        int flags = lp_io_use_suffix ? LP_IO_UNIQ_SUFFIX : 0;
        int ret = lp_io_prepare(lp_io_dir, flags, &io_handle, MPI_COMM_WORLD);
        assert(ret == 0 || !"lp_io_prepare failure");
431 432
    }
    tw_run();
433 434 435
    if (do_lp_io){
        int ret = lp_io_flush(io_handle, MPI_COMM_WORLD);
        assert(ret == 0 || !"lp_io_flush failure");
436
    }
437
    model_net_report_stats(net_id);
438 439 440 441
    tw_end();
    return 0;
}

Jonathan Jenkins's avatar
Jonathan Jenkins committed
442 443 444 445 446 447 448 449
/*
 * Local variables:
 *  c-indent-level: 4
 *  c-basic-offset: 4
 * End:
 *
 * vim: ft=c ts=8 sts=4 sw=4 expandtab
 */