modelnet-test.c 12.6 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 1  /* 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
/* whether to pull instead of push */ 
static int do_pull = 0; 

38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55
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 */
56
    tw_stime end_ts;      /* time that we ended sending requests */
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
};

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);
138 139 140 141 142 143 144

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

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 */
153
    lp_io_handle handle;
154 155 156 157

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

158
    if(argc < 2)
159
    {
160
	    printf("\n Usage: mpirun <args> --sync=2/3 mapping_file_name.conf (optional --nkp) ");
161
	    MPI_Finalize();
162
	    return 0;
163 164 165 166
    }
    MPI_Comm_rank(MPI_COMM_WORLD, &rank);
    MPI_Comm_size(MPI_COMM_WORLD, &nprocs);
  
167 168
    configuration_load(argv[2], MPI_COMM_WORLD, &config);
    net_id=model_net_set_params();
169
    svr_add_lp_type();
170 171 172
    
    codes_mapping_setup();
    
173 174
    num_servers = codes_mapping_get_group_reps("MODELNET_GRP") * codes_mapping_get_lp_count("MODELNET_GRP", "server");
    if(net_id == DRAGONFLY)
175
    {
176 177
	  num_routers = codes_mapping_get_group_reps("MODELNET_GRP") * codes_mapping_get_lp_count("MODELNET_GRP", "dragonfly_router"); 
	  offset = 1;
178
    }
179

180 181 182 183 184
    if(lp_io_prepare("modelnet-test", LP_IO_UNIQ_SUFFIX, &handle, MPI_COMM_WORLD) < 0)
    {
        return(-1);
    }

185
    tw_run();
186 187
    model_net_report_stats(net_id);

188 189 190 191 192
    if(lp_io_flush(handle, MPI_COMM_WORLD) < 0)
    {
        return(-1);
    }

193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220
    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
     */

221
    //printf("\n Initializing servers %d ", (int)lp->gid);
222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291
    /* 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)
{
292 293
    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*NUM_REQS)/(double)(1024*1024)/ns_to_s(ns->end_ts-ns->start_ts)), ns->msg_sent_count, ns->msg_recvd_count, ns->local_recvd_count);
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
    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));
324
    m_remote->svr_event_type = (do_pull) ? ACK : REQ;
325 326 327 328 329
    //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);

330 331 332 333
    int opt_offset = 0;
    if(net_id == DRAGONFLY && lp->gid % 5)
	  opt_offset = 3; /* optional offset due to dragonfly mapping */
    
334
    /* each server sends a request to the next highest server */
335
    int dest_id = (lp->gid + offset + opt_offset)%(num_servers*2 + num_routers);
336 337 338 339 340 341 342
    if (do_pull){
        model_net_pull_event(net_id, "test", dest_id, PAYLOAD_SZ, 0.0,
                sizeof(svr_msg), (const void*)m_remote, lp);
    }
    else{
        model_net_event(net_id, "test", dest_id, PAYLOAD_SZ, 0.0, sizeof(svr_msg), (const void*)m_remote, sizeof(svr_msg), (const void*)m_local, lp);
    }
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
    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--;
371 372 373 374 375 376
    if (do_pull){
        model_net_pull_event_rc(net_id, lp);
    }
    else{
        model_net_event_rc(net_id, lp, PAYLOAD_SZ);
    }
377 378 379 380 381 382 383 384 385 386 387 388 389

    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--;
390 391 392 393 394 395
    if (do_pull){
        model_net_pull_event_rc(net_id, lp);
    }
    else{
        model_net_event_rc(net_id, lp, PAYLOAD_SZ);
    }
396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411

    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--;
    }
412 413
    // don't worry about resetting end_ts - just let the ack 
    // event bulldoze it
414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431
    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));
432
    m_remote->svr_event_type = (do_pull) ? ACK : REQ;
433 434 435 436 437

//    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);
438 439 440 441
    int opt_offset = 0;
    if(net_id == DRAGONFLY && lp->gid % 5)
	 opt_offset = 3;

442 443 444 445 446 447 448 449 450
    tw_lpid dest_id = (lp->gid + offset + opt_offset)%(num_servers*2 + num_routers);

    /* in the "pull" case, src should actually be self */
    if (do_pull){
        assert(m->src == lp->gid);
    }
    else{
        assert(m->src == dest_id);
    }
451 452 453 454

    if(ns->msg_sent_count < NUM_REQS)
    {
        /* send another request */
455 456 457 458 459 460 461
        if (do_pull){
            model_net_pull_event(net_id, "test", dest_id, PAYLOAD_SZ, 0.0,
                    sizeof(svr_msg), (const void*)m_remote, lp);
        }
        else{
            model_net_event(net_id, "test", dest_id, PAYLOAD_SZ, 0.0, sizeof(svr_msg), (const void*)m_remote, sizeof(svr_msg), (const void*)m_local, lp);
        }
462 463 464 465 466
        ns->msg_sent_count++;
        m->incremented_flag = 1;
    }
    else
    {
467
        ns->end_ts = tw_now(lp);
468 469 470 471 472 473
        m->incremented_flag = 0;
    }

    return;
}

474 475 476
/* handle receiving request 
 * (note: this should never be called when doing the "pulling" version of
 * the program) */
477 478 479 480 481 482
static void handle_req_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp)
{
483
    assert(!do_pull);
484 485 486 487 488 489 490 491 492 493 494
    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 */
495
//    printf("\n m->src %d lp->gid %d ", m->src, lp->gid);
496 497 498 499 500
    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));
501 502 503 504 505 506 507 508
    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..? 
509
    model_net_event(net_id, "test", m->src, PAYLOAD_SZ, 0.0, sizeof(svr_msg), (const void*)m_remote, sizeof(svr_msg), (const void*)m_local, lp);
510 511 512 513 514 515 516 517 518
//    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:
519
 *
520 521
 * vim: ft=c ts=8 sts=4 sw=4 expandtab
 */