modelnet-test.c 13.2 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
static int num_routers_per_rep = 0;
static int num_servers_per_rep = 0;
static int lps_per_rep = 0;

42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59
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 */
60
    tw_stime end_ts;      /* time that we ended sending requests */
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141
};

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);
142 143 144 145 146 147 148

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

149 150 151 152 153 154 155 156
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 */
157
    lp_io_handle handle;
158 159 160 161

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

162
    if(argc < 2)
163
    {
164
	    printf("\n Usage: mpirun <args> --sync=2/3 mapping_file_name.conf (optional --nkp) ");
165
	    MPI_Finalize();
166
	    return 0;
167 168 169 170
    }
    MPI_Comm_rank(MPI_COMM_WORLD, &rank);
    MPI_Comm_size(MPI_COMM_WORLD, &nprocs);
  
171 172
    configuration_load(argv[2], MPI_COMM_WORLD, &config);
    net_id=model_net_set_params();
173
    svr_add_lp_type();
174 175 176
    
    codes_mapping_setup();
    
177 178
    num_servers = codes_mapping_get_group_reps("MODELNET_GRP") * codes_mapping_get_lp_count("MODELNET_GRP", "server");
    if(net_id == DRAGONFLY)
179
    {
180 181
	  num_routers = codes_mapping_get_group_reps("MODELNET_GRP") * codes_mapping_get_lp_count("MODELNET_GRP", "dragonfly_router"); 
	  offset = 1;
182
    }
183

184 185 186 187 188
    if(lp_io_prepare("modelnet-test", LP_IO_UNIQ_SUFFIX, &handle, MPI_COMM_WORLD) < 0)
    {
        return(-1);
    }

189
    tw_run();
190 191
    model_net_report_stats(net_id);

192 193 194 195 196
    if(lp_io_flush(handle, MPI_COMM_WORLD) < 0)
    {
        return(-1);
    }

197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224
    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
     */

225
    //printf("\n Initializing servers %d ", (int)lp->gid);
226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295
    /* 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)
{
296 297
    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);
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
    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));
328
    m_remote->svr_event_type = (do_pull) ? ACK : REQ;
329 330 331 332 333
    //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);

334 335 336 337 338
    num_servers_per_rep = codes_mapping_get_lp_count("MODELNET_GRP", "server");
    num_routers_per_rep = codes_mapping_get_lp_count("MODELNET_GRP", "dragonfly_router");

    lps_per_rep = num_servers_per_rep * 2 + num_routers_per_rep;

339
    int opt_offset = 0;
340 341 342 343
    int total_lps = num_servers * 2 + num_routers;

    if(net_id == DRAGONFLY && (lp->gid % lps_per_rep == num_servers_per_rep - 1))
          opt_offset = num_servers_per_rep + num_routers_per_rep; /* optional offset due to dragonfly mapping */
344
    
345
    /* each server sends a request to the next highest server */
346
    int dest_id = (lp->gid + offset + opt_offset)%total_lps;
347 348 349 350 351 352 353
    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);
    }
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
    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--;
382 383 384 385 386 387
    if (do_pull){
        model_net_pull_event_rc(net_id, lp);
    }
    else{
        model_net_event_rc(net_id, lp, PAYLOAD_SZ);
    }
388 389 390 391 392 393 394 395 396 397 398 399 400

    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--;
401 402 403 404 405 406
    if (do_pull){
        model_net_pull_event_rc(net_id, lp);
    }
    else{
        model_net_event_rc(net_id, lp, PAYLOAD_SZ);
    }
407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422

    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--;
    }
423 424
    // don't worry about resetting end_ts - just let the ack 
    // event bulldoze it
425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442
    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));
443
    m_remote->svr_event_type = (do_pull) ? ACK : REQ;
444 445 446 447 448

//    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);
449
    int opt_offset = 0;
450 451 452
    
   if(net_id == DRAGONFLY && (lp->gid % lps_per_rep == num_servers_per_rep - 1))
      opt_offset = num_servers_per_rep + num_routers_per_rep; /* optional offset due to dragonfly mapping */    	
453

454 455 456 457 458 459 460 461 462
    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);
    }
463 464 465 466

    if(ns->msg_sent_count < NUM_REQS)
    {
        /* send another request */
467 468 469 470 471 472 473
        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);
        }
474 475 476 477 478
        ns->msg_sent_count++;
        m->incremented_flag = 1;
    }
    else
    {
479
        ns->end_ts = tw_now(lp);
480 481 482 483 484 485
        m->incremented_flag = 0;
    }

    return;
}

486 487 488
/* handle receiving request 
 * (note: this should never be called when doing the "pulling" version of
 * the program) */
489 490 491 492 493 494
static void handle_req_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp)
{
495
    assert(!do_pull);
496 497 498 499 500 501 502 503 504 505 506
    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 */
507
//    printf("\n m->src %d lp->gid %d ", m->src, lp->gid);
508
    int opt_offset = 0;
509 510 511
    if(net_id == DRAGONFLY && (m->src % lps_per_rep == num_servers_per_rep - 1))
          opt_offset = num_servers_per_rep + num_routers_per_rep; /* optional offset due to dragonfly mapping */       
 
512
    assert(lp->gid == (m->src + offset + opt_offset)%(num_servers*2 + num_routers));
513 514 515 516 517 518 519 520
    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..? 
521
    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);
522 523 524 525 526 527 528 529 530
//    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:
531
 *
532 533
 * vim: ft=c ts=8 sts=4 sw=4 expandtab
 */