model-net-lp.c 23.8 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11
/*
 * Copyright (C) 2014 University of Chicago.
 * See COPYRIGHT notice in top-level directory.
 *
 */

#include <stddef.h>
#include <assert.h>
#include "codes/model-net.h"
#include "codes/model-net-method.h"
#include "codes/model-net-lp.h"
12
#include "codes/model-net-sched.h"
13 14 15 16 17 18 19 20 21 22 23 24 25
#include "codes/codes_mapping.h"
#include "codes/jenkins-hash.h"

#define MN_NAME "model_net_base"

/**** BEGIN SIMULATION DATA STRUCTURES ****/

int model_net_base_magic;

// message-type specific offsets - don't want to get bitten later by alignment
// issues...
static int msg_offsets[MAX_NETS];

26 27
typedef struct model_net_base_params_s {
    model_net_sched_cfg_params sched_params;
28
    uint64_t packet_size;
29
    int use_recv_queue;
30 31
} model_net_base_params;

32
/* annotation-specific parameters (unannotated entry occurs at the
33 34 35 36 37
 * last index) */
static int                       num_params = 0;
static const char              * annos[CONFIGURATION_MAX_ANNOS];
static model_net_base_params     all_params[CONFIGURATION_MAX_ANNOS];

38 39
static tw_stime mn_sample_interval = 0.0;
static int mn_sample_enabled = 0;
40
static tw_stime mn_sample_end = 0.0;
41

42 43
typedef struct model_net_base_state {
    int net_id;
44
    // whether scheduler loop is running
45
    int in_sched_send_loop, in_sched_recv_loop;
46 47 48
    // unique message id counter. This doesn't get decremented on RC to prevent
    // optimistic orderings using "stale" ids
    uint64_t msg_id;
49 50
    // model-net schedulers
    model_net_sched *sched_send, *sched_recv;
51 52
    // parameters
    const model_net_base_params * params;
53 54 55
    // lp type and state of underlying model net method - cache here so we
    // don't have to constantly look up
    const tw_lptype *sub_type;
56
    const st_trace_type *sub_trace_type;
57 58 59
    void *sub_state;
} model_net_base_state;

60

61 62 63 64
/**** END SIMULATION DATA STRUCTURES ****/

/**** BEGIN LP, EVENT PROCESSING FUNCTION DECLS ****/

65
/* ROSS LP processing functions */
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
static void model_net_base_lp_init(
        model_net_base_state * ns,
        tw_lp * lp);
static void model_net_base_event(
        model_net_base_state * ns,
        tw_bf * b,
        model_net_wrap_msg * m,
        tw_lp * lp);
static void model_net_base_event_rc(
        model_net_base_state * ns,
        tw_bf * b,
        model_net_wrap_msg * m,
        tw_lp * lp);
static void model_net_base_finalize(
        model_net_base_state * ns,
        tw_lp * lp);

/* event type handlers */
static void handle_new_msg(
        model_net_base_state * ns,
        tw_bf *b,
        model_net_wrap_msg * m,
        tw_lp * lp);
static void handle_sched_next(
        model_net_base_state * ns,
        tw_bf *b,
        model_net_wrap_msg * m,
        tw_lp * lp);
static void handle_new_msg_rc(
        model_net_base_state * ns,
        tw_bf *b,
        model_net_wrap_msg * m,
        tw_lp * lp);
static void handle_sched_next_rc(
        model_net_base_state * ns,
        tw_bf *b,
        model_net_wrap_msg * m,
        tw_lp * lp);

/* ROSS function pointer table for this LP */
tw_lptype model_net_base_lp = {
107 108 109 110
    (init_f) model_net_base_lp_init,
    (pre_run_f) NULL,
    (event_f) model_net_base_event,
    (revent_f) model_net_base_event_rc,
111 112
    (commit_f) NULL,
    (final_f)  model_net_base_finalize,
113 114
    (map_f) codes_mapping,
    sizeof(model_net_base_state),
115 116
};

117 118 119 120
/* setup for the ROSS event tracing
 * can have a different function for  rbev_trace_f and ev_trace_f
 * but right now it is set to the same function for both
 */
121
void mn_event_collect(model_net_wrap_msg *m, tw_lp *lp, char *buffer, int *collect_flag)
122
{
123 124 125
    // assigning large numbers to message types to make it easier to
    // determine which messages are model net base LP msgs
    int type;
126
    void * sub_msg;
127 128 129
    switch (m->h.event_type){
        case MN_BASE_NEW_MSG:
            type = 9000;
130
            memcpy(buffer, &type, sizeof(type));
131 132 133
            break;
        case MN_BASE_SCHED_NEXT:
            type = 9001;
134
            memcpy(buffer, &type, sizeof(type));
135 136 137
            break;
        case MN_BASE_SAMPLE: 
            type = 9002;
138
            memcpy(buffer, &type, sizeof(type));
139 140
            break;
        case MN_BASE_PASS:
141 142 143 144 145
            sub_msg = ((char*)m)+msg_offsets[((model_net_base_state*)lp->cur_state)->net_id];
            if (g_st_ev_trace == RB_TRACE)
                (((model_net_base_state*)lp->cur_state)->sub_trace_type->rbev_trace)(sub_msg, lp, buffer, collect_flag);
            else if (g_st_ev_trace == FULL_TRACE)
                (((model_net_base_state*)lp->cur_state)->sub_trace_type->ev_trace)(sub_msg, lp, buffer, collect_flag);
146
            break;
147
        default:  // this shouldn't happen, but can help detect an issue
148 149 150
            type = 9004;
            break;
    }
151 152
}

153 154
st_trace_type mn_trace_types = {
    (rbev_trace_f) mn_event_collect,
155
     sizeof(int),
156
     (ev_trace_f) mn_event_collect,
157 158 159
     sizeof(int),
};

160 161 162 163
/**** END LP, EVENT PROCESSING FUNCTION DECLS ****/

/**** BEGIN IMPLEMENTATIONS ****/

164
void model_net_enable_sampling(tw_stime interval, tw_stime end)
165 166
{
    mn_sample_interval = interval;
167
    mn_sample_end = end;
168 169 170 171 172 173 174 175 176 177 178
    mn_sample_enabled = 1;
}

int model_net_sampling_enabled(void)
{
    return mn_sample_enabled;
}

// schedule sample event - want to be precise, so no noise here
static void issue_sample_event(tw_lp *lp)
{
179 180 181 182 183 184
    if (tw_now(lp) + mn_sample_interval < mn_sample_end + 0.0001) {
        tw_event *e = tw_event_new(lp->gid, mn_sample_interval, lp);
        model_net_wrap_msg *m = tw_event_data(e);
        msg_set_header(model_net_base_magic, MN_BASE_SAMPLE, lp->gid, &m->h);
        tw_event_send(e);
    }
185 186
}

187 188 189 190
void model_net_base_register(int *do_config_nets){
    // here, we initialize ALL lp types to use the base type
    for (int i = 0; i < MAX_NETS; i++){
        if (do_config_nets[i]){
191 192 193 194 195 196 197
            // some model-net lps need custom registration hooks (dragonfly).
            // Those that don't NULL out the reg. function
            if (method_array[i]->mn_register == NULL)
                lp_type_register(model_net_lp_config_names[i],
                        &model_net_base_lp);
            else
                method_array[i]->mn_register(&model_net_base_lp);
198
            if (g_st_ev_trace) // for ROSS event tracing
199
            {
200 201
                if (method_array[i]->mn_trace_register == NULL)
                    trace_type_register(model_net_lp_config_names[i], &mn_trace_types);
202
                else
203
                    method_array[i]->mn_trace_register(&mn_trace_types);
204
            }
205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224
        }
    }
}

static void base_read_config(const char * anno, model_net_base_params *p){
    char sched[MAX_NAME_LENGTH];
    long int packet_size_l = 0;
    uint64_t packet_size;
    int ret;

    ret = configuration_get_value(&config, "PARAMS", "modelnet_scheduler",
            anno, sched, MAX_NAME_LENGTH);
    configuration_get_value_longint(&config, "PARAMS", "packet_size", anno,
            &packet_size_l);
    packet_size = packet_size_l;

    if (ret > 0){
        int i;
        for (i = 0; i < MAX_SCHEDS; i++){
            if (strcmp(sched_names[i], sched) == 0){
225
                p->sched_params.type = i;
226 227 228 229 230
                break;
            }
        }
        if (i == MAX_SCHEDS){
            tw_error(TW_LOC,"Unknown value for PARAMS:modelnet-scheduler : "
231
                    "%s", sched);
232 233 234 235
        }
    }
    else{
        // default: FCFS
236
        p->sched_params.type = MN_SCHED_FCFS;
237 238
    }

239 240
    // get scheduler-specific parameters
    if (p->sched_params.type == MN_SCHED_PRIO){
241
        // prio scheduler uses default parameters
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
        int             * num_prios = &p->sched_params.u.prio.num_prios;
        enum sched_type * sub_stype = &p->sched_params.u.prio.sub_stype;
        // number of priorities to allocate
        ret = configuration_get_value_int(&config, "PARAMS",
                "prio-sched-num-prios", anno, num_prios);
        if (ret != 0)
            *num_prios = 10;

        ret = configuration_get_value(&config, "PARAMS",
                "prio-sched-sub-sched", anno, sched, MAX_NAME_LENGTH);
        if (ret == 0)
            *sub_stype = MN_SCHED_FCFS;
        else{
            int i;
            for (i = 0; i < MAX_SCHEDS; i++){
                if (strcmp(sched_names[i], sched) == 0){
                    *sub_stype = i;
                    break;
                }
            }
            if (i == MAX_SCHEDS){
                tw_error(TW_LOC, "Unknown value for "
                        "PARAMS:prio-sched-sub-sched %s", sched);
            }
            else if (i == MN_SCHED_PRIO){
                tw_error(TW_LOC, "priority scheduler cannot be used as a "
                        "priority scheduler's sub sched "
                        "(PARAMS:prio-sched-sub-sched)");
            }
        }
272 273
    }

274 275 276 277 278 279 280 281 282 283 284 285 286
    if (p->sched_params.type == MN_SCHED_FCFS_FULL ||
            (p->sched_params.type == MN_SCHED_PRIO &&
             p->sched_params.u.prio.sub_stype == MN_SCHED_FCFS_FULL)){
        // override packet size to something huge (leave a bit in the unlikely
        // case that an op using packet size causes overflow)
        packet_size = 1ull << 62;
    }
    else if (!packet_size &&
            (p->sched_params.type != MN_SCHED_FCFS_FULL ||
             (p->sched_params.type == MN_SCHED_PRIO &&
              p->sched_params.u.prio.sub_stype != MN_SCHED_FCFS_FULL))){
        packet_size = 512;
        fprintf(stderr, "WARNING, no packet size specified, setting packet "
Jonathan Jenkins's avatar
Jonathan Jenkins committed
287
                "size to %llu\n", LLU(packet_size));
288 289 290
    }


291 292 293 294
    p->packet_size = packet_size;
}

void model_net_base_configure(){
295 296 297 298 299
    uint32_t h1=0, h2=0;

    bj_hashlittle2(MN_NAME, strlen(MN_NAME), &h1, &h2);
    model_net_base_magic = h1+h2;

300 301 302
    // set up offsets - doesn't matter if they are actually used or not
    msg_offsets[SIMPLENET] =
        offsetof(model_net_wrap_msg, msg.m_snet);
Jonathan Jenkins's avatar
Jonathan Jenkins committed
303 304
    msg_offsets[SIMPLEP2P] =
        offsetof(model_net_wrap_msg, msg.m_sp2p);
305 306 307 308
    msg_offsets[TORUS] =
        offsetof(model_net_wrap_msg, msg.m_torus);
    msg_offsets[DRAGONFLY] =
        offsetof(model_net_wrap_msg, msg.m_dfly);
309 310 311
    // note: dragonfly router uses the same event struct
    msg_offsets[DRAGONFLY_ROUTER] =
        offsetof(model_net_wrap_msg, msg.m_dfly);
312 313 314 315
    msg_offsets[DRAGONFLY_CUSTOM] =
        offsetof(model_net_wrap_msg, msg.m_dfly);
    msg_offsets[DRAGONFLY_CUSTOM_ROUTER] =
        offsetof(model_net_wrap_msg, msg.m_dfly);
316 317
    msg_offsets[SLIMFLY] =
        offsetof(model_net_wrap_msg, msg.m_slim);
318 319
    msg_offsets[FATTREE] =
	offsetof(model_net_wrap_msg, msg.m_fat);
320 321
    msg_offsets[LOGGP] =
        offsetof(model_net_wrap_msg, msg.m_loggp);
322

323 324 325 326 327 328 329 330 331 332
    // perform the configuration(s)
    // This part is tricky, as we basically have to look up all annotations that
    // have LP names of the form modelnet_*. For each of those, we need to read
    // the base parameters
    // - the init is a little easier as we can use the LP-id to look up the
    // annotation

    // first grab all of the annotations and store locally
    for (int c = 0; c < lpconf.lpannos_count; c++){
        const config_anno_map_t *amap = &lpconf.lpannos[c];
333
        if (strncmp("modelnet_", amap->lp_name.ptr, 9) == 0){
334 335 336
            for (int n = 0; n < amap->num_annos; n++){
                int a;
                for (a = 0; a < num_params; a++){
337 338
                    if (annos[a] != NULL && amap->annotations[n].ptr != NULL &&
                            strcmp(amap->annotations[n].ptr, annos[a]) == 0){
339 340 341 342 343
                        break;
                    }
                }
                if (a == num_params){
                    // found a new annotation
344
                    annos[num_params++] = amap->annotations[n].ptr;
345 346 347 348 349 350 351 352 353 354 355 356 357
                }
            }
            if (amap->has_unanno_lp){
                int a;
                for (a = 0; a < num_params; a++){
                    if (annos[a] == NULL)
                        break;
                }
                if (a == num_params){
                    // found a new (empty) annotation
                    annos[num_params++] = NULL;
                }
            }
358 359
        }
    }
360 361 362 363 364 365

    // now that we have all of the annos for all of the networks, loop through
    // and read the configs
    for (int i = 0; i < num_params; i++){
        base_read_config(annos[i], &all_params[i]);
    }
366 367 368 369 370 371
}

void model_net_base_lp_init(
        model_net_base_state * ns,
        tw_lp * lp){
    // obtain the underlying lp type through codes-mapping
372
    char lp_type_name[MAX_NAME_LENGTH], anno[MAX_NAME_LENGTH];
373 374
    int dummy;

375
    codes_mapping_get_lp_info(lp->gid, NULL, &dummy,
376 377
            lp_type_name, &dummy, anno, &dummy, &dummy);

378 379
    ns->msg_id = 0;

380 381 382 383 384 385 386 387
    // get annotation-specific parameters
    for (int i = 0; i < num_params; i++){
        if ((anno[0]=='\0' && annos[i] == NULL) ||
                strcmp(anno, annos[i]) == 0){
            ns->params = &all_params[i];
            break;
        }
    }
388 389 390 391 392 393 394 395 396

    // find the corresponding method name / index
    for (int i = 0; i < MAX_NETS; i++){
        if (strcmp(model_net_lp_config_names[i], lp_type_name) == 0){
            ns->net_id = i;
            break;
        }
    }

397 398
    ns->sched_send = malloc(sizeof(model_net_sched));
    ns->sched_recv = malloc(sizeof(model_net_sched));
399
    // init both the sender queue and the 'receiver' queue
400 401 402 403
    model_net_sched_init(&ns->params->sched_params, 0, method_array[ns->net_id],
            ns->sched_send);
    model_net_sched_init(&ns->params->sched_params, 1, method_array[ns->net_id],
            ns->sched_recv);
404

405
    ns->sub_type = model_net_get_lp_type(ns->net_id);
406 407 408 409

    if (g_st_ev_trace)
        ns->sub_trace_type = model_net_get_trace_type(ns->net_id);

410 411 412 413 414 415
    // NOTE: some models actually expect LP state to be 0 initialized...
    // *cough anything that uses mn_stats_array cough*
    ns->sub_state = calloc(1, ns->sub_type->state_sz);

    // initialize the model-net method
    ns->sub_type->init(ns->sub_state, lp);
416 417 418 419 420 421

    // check validity of sampling function
    event_f  sample  = method_array[ns->net_id]->mn_sample_fn;
    revent_f rsample = method_array[ns->net_id]->mn_sample_rc_fn;
    if (model_net_sampling_enabled()) {
        if (sample == NULL) {
422 423 424
            /* MM: Commented out temporarily--- */
            //tw_error(TW_LOC,
            //        "Sampling requested for a model that doesn't provide it\n");
425 426 427 428
        }
        else if (rsample == NULL &&
                (g_tw_synchronization_protocol == OPTIMISTIC ||
                 g_tw_synchronization_protocol == OPTIMISTIC_DEBUG)) {
429 430 431
            /* MM: Commented out temporarily--- */
            //tw_error(TW_LOC,
            //        "Sampling requested for a model that doesn't provide it\n");
432 433 434 435 436 437 438 439
        }
        else {
            init_f sinit = method_array[ns->net_id]->mn_sample_init_fn;
            if (sinit != NULL)
                sinit(ns->sub_state, lp);
            issue_sample_event(lp);
        }
    }
440 441 442 443 444 445 446
}

void model_net_base_event(
        model_net_base_state * ns,
        tw_bf * b,
        model_net_wrap_msg * m,
        tw_lp * lp){
447 448 449 450

    if(m->h.magic != model_net_base_magic)
        printf("\n LP ID mismatched %d ", lp->gid);

451
    assert(m->h.magic == model_net_base_magic);
452 453

    void * sub_msg;
454
    switch (m->h.event_type){
455 456 457 458 459 460
        case MN_BASE_NEW_MSG:
            handle_new_msg(ns, b, m, lp);
            break;
        case MN_BASE_SCHED_NEXT:
            handle_sched_next(ns, b, m, lp);
            break;
461 462 463 464 465 466 467
        case MN_BASE_SAMPLE: ;
            event_f sample = method_array[ns->net_id]->mn_sample_fn;
            assert(model_net_sampling_enabled() && sample != NULL);
            sub_msg = ((char*)m)+msg_offsets[ns->net_id];
            sample(ns->sub_state, b, sub_msg, lp);
            issue_sample_event(lp);
            break;
468
        case MN_BASE_PASS: ;
469
            sub_msg = ((char*)m)+msg_offsets[ns->net_id];
470 471 472 473 474 475 476 477 478 479 480 481 482 483
            ns->sub_type->event(ns->sub_state, b, sub_msg, lp);
            break;
        /* ... */
        default:
            assert(!"model_net_base event type not known");
            break;
    }
}

void model_net_base_event_rc(
        model_net_base_state * ns,
        tw_bf * b,
        model_net_wrap_msg * m,
        tw_lp * lp){
484
    assert(m->h.magic == model_net_base_magic);
485 486

    void * sub_msg;
487
    switch (m->h.event_type){
488 489 490 491 492 493
        case MN_BASE_NEW_MSG:
            handle_new_msg_rc(ns, b, m, lp);
            break;
        case MN_BASE_SCHED_NEXT:
            handle_sched_next_rc(ns, b, m, lp);
            break;
494 495 496 497 498 499
        case MN_BASE_SAMPLE: ;
            revent_f sample_rc = method_array[ns->net_id]->mn_sample_rc_fn;
            assert(model_net_sampling_enabled() && sample_rc != NULL);
            sub_msg = ((char*)m)+msg_offsets[ns->net_id];
            sample_rc(ns->sub_state, b, sub_msg, lp);
            break;
500
        case MN_BASE_PASS: ;
501
            sub_msg = ((char*)m)+msg_offsets[ns->net_id];
502 503 504 505 506 507 508 509 510 511 512 513
            ns->sub_type->revent(ns->sub_state, b, sub_msg, lp);
            break;
        /* ... */
        default:
            assert(!"model_net_base event type not known");
            break;
    }
}

void model_net_base_finalize(
        model_net_base_state * ns,
        tw_lp * lp){
514 515 516
    final_f sfini = method_array[ns->net_id]->mn_sample_fini_fn;
    if (sfini != NULL)
        sfini(ns->sub_state, lp);
517 518 519 520
    ns->sub_type->final(ns->sub_state, lp);
    free(ns->sub_state);
}

521
/// bitfields used:
522
/// c31 - we initiated a sched_next event
523 524 525 526 527
void handle_new_msg(
        model_net_base_state * ns,
        tw_bf *b,
        model_net_wrap_msg * m,
        tw_lp * lp){
528
    // simply pass down to the scheduler
529
    model_net_request *r = &m->msg.m_base.req;
530 531
    // don't forget to set packet size, now that we're responsible for it!
    r->packet_size = ns->params->packet_size;
532
    r->msg_id = ns->msg_id++;
533 534
    void * m_data = m+1;
    void *remote = NULL, *local = NULL;
535
    if (r->remote_event_size > 0){
536 537
        remote = m_data;
        m_data = (char*)m_data + r->remote_event_size;
538 539
    }
    if (r->self_event_size > 0){
540
        local = m_data;
541
    }
542

543
    // set message-specific params
544 545
    int is_from_remote = m->msg.m_base.is_from_remote;
    model_net_sched *ss = is_from_remote ? ns->sched_recv : ns->sched_send;
546
    int *in_sched_loop = is_from_remote  ?
547 548 549
        &ns->in_sched_recv_loop : &ns->in_sched_send_loop;
    model_net_sched_add(r, &m->msg.m_base.sched_params, r->remote_event_size,
            remote, r->self_event_size, local, ss, &m->msg.m_base.rc, lp);
550

551
    if (*in_sched_loop == 0){
552 553
        b->c31 = 1;
        /* No need to issue an extra sched-next event if we're currently idle */
554
        *in_sched_loop = 1;
555 556 557 558 559
        /* NOTE: we can do this because the sched rc struct in the event is
         * *very* lightly used (there's harmless overlap in usage for the
         * priority scheduler) */
        handle_sched_next(ns, b, m, lp);
        assert(*in_sched_loop); // we shouldn't have fallen out of the loop
560 561
    }
}
562 563 564

void handle_new_msg_rc(
        model_net_base_state *ns,
565
        tw_bf *b,
566 567
        model_net_wrap_msg *m,
        tw_lp *lp){
568 569
    int is_from_remote = m->msg.m_base.is_from_remote;
    model_net_sched *ss = is_from_remote ? ns->sched_recv : ns->sched_send;
570
    int *in_sched_loop = is_from_remote  ?
571 572
        &ns->in_sched_recv_loop : &ns->in_sched_send_loop;

573 574
    if (b->c31) {
        handle_sched_next_rc(ns, b, m, lp);
575
        *in_sched_loop = 0;
576
    }
577
    model_net_sched_add_rc(ss, &m->msg.m_base.rc, lp);
578
}
579 580 581 582

/// bitfields used
/// c0 - scheduler loop is finished
void handle_sched_next(
583 584 585 586
        model_net_base_state * ns,
        tw_bf *b,
        model_net_wrap_msg * m,
        tw_lp * lp){
587
    tw_stime poffset;
588 589 590 591 592
    int is_from_remote = m->msg.m_base.is_from_remote;
    model_net_sched * ss = is_from_remote ? ns->sched_recv : ns->sched_send;
    int *in_sched_loop = is_from_remote ?
        &ns->in_sched_recv_loop : &ns->in_sched_send_loop;
    int ret = model_net_sched_next(&poffset, ss, m+1, &m->msg.m_base.rc, lp);
593 594 595 596
    // we only need to know whether scheduling is finished or not - if not,
    // go to the 'next iteration' of the loop
    if (ret == -1){
        b->c0 = 1;
597
        *in_sched_loop = 0;
598
    }
599 600 601
    // Currently, only a subset of the network implementations use the
    // callback-based scheduling loop (model_net_method_idle_event).
    // For all others, we need to schedule the next packet
602
    // immediately
Jonathan Jenkins's avatar
Jonathan Jenkins committed
603
    else if (ns->net_id == SIMPLEP2P || ns->net_id == TORUS){
604
        tw_event *e = tw_event_new(lp->gid,
605
                poffset+codes_local_latency(lp), lp);
606
        model_net_wrap_msg *m_wrap = tw_event_data(e);
607
        msg_set_header(model_net_base_magic, MN_BASE_SCHED_NEXT, lp->gid,
608 609
                &m_wrap->h);
        m_wrap->msg.m_base.is_from_remote = is_from_remote;
610 611
        // no need to set m_base here
        tw_event_send(e);
612 613
    }
}
614

615 616 617 618 619
void handle_sched_next_rc(
        model_net_base_state * ns,
        tw_bf *b,
        model_net_wrap_msg * m,
        tw_lp * lp){
620 621 622 623
    int is_from_remote = m->msg.m_base.is_from_remote;
    model_net_sched * ss = is_from_remote ? ns->sched_recv : ns->sched_send;
    int *in_sched_loop = is_from_remote ?
        &ns->in_sched_recv_loop : &ns->in_sched_send_loop;
624

625
    model_net_sched_next_rc(ss, m+1, &m->msg.m_base.rc, lp);
626
    if (b->c0){
627
        *in_sched_loop = 1;
628
    }
Jonathan Jenkins's avatar
Jonathan Jenkins committed
629
    else if (ns->net_id == SIMPLEP2P || ns->net_id == TORUS){
630 631
        codes_local_latency_reverse(lp);
    }
632 633 634 635 636 637 638 639 640 641 642 643 644
}

/**** END IMPLEMENTATIONS ****/

tw_event * model_net_method_event_new(
        tw_lpid dest_gid,
        tw_stime offset_ts,
        tw_lp *sender,
        int net_id,
        void **msg_data,
        void **extra_data){
    tw_event *e = tw_event_new(dest_gid, offset_ts, sender);
    model_net_wrap_msg *m_wrap = tw_event_data(e);
645 646
    msg_set_header(model_net_base_magic, MN_BASE_PASS, sender->gid,
            &m_wrap->h);
647 648 649 650 651 652 653 654
    *msg_data = ((char*)m_wrap)+msg_offsets[net_id];
    // extra_data is optional
    if (extra_data != NULL){
        *extra_data = m_wrap + 1;
    }
    return e;
}

655 656 657 658 659 660 661 662 663 664 665 666
void model_net_method_send_msg_recv_event(
        tw_lpid final_dest_lp,
        tw_lpid dest_mn_lp,
        tw_lpid src_lp, // the "actual" source (as opposed to the model net lp)
        uint64_t msg_size,
        int is_pull,
        uint64_t pull_size,
        int remote_event_size,
        const mn_sched_params *sched_params,
        const char * category,
        int net_id,
        void * msg,
667
        tw_stime offset,
668
        tw_lp *sender){
669
    tw_event *e =
670
        tw_event_new(dest_mn_lp, offset+codes_local_latency(sender), sender);
671 672 673 674 675 676 677 678
    model_net_wrap_msg *m = tw_event_data(e);
    msg_set_header(model_net_base_magic, MN_BASE_NEW_MSG, sender->gid, &m->h);

    if (sched_params != NULL)
        m->msg.m_base.sched_params = *sched_params;
    else
        model_net_sched_set_default_params(&m->msg.m_base.sched_params);

679 680 681
    model_net_request *r = &m->msg.m_base.req;
    r->final_dest_lp = final_dest_lp;
    r->src_lp = src_lp;
682
    // for "recv" events, set the "dest" to this LP in the case of a pull event
683 684 685 686 687 688 689 690 691
    r->dest_mn_lp = sender->gid;
    r->pull_size = pull_size;
    r->msg_size = msg_size;
    // TODO: document why we're setting packet_size this way
    r->packet_size = msg_size;
    r->net_id = net_id;
    r->is_pull = is_pull;
    r->remote_event_size = remote_event_size;
    r->self_event_size = 0;
692 693
    m->msg.m_base.is_from_remote = 1;

694 695
    strncpy(r->category, category, CATEGORY_NAME_MAX-1);
    r->category[CATEGORY_NAME_MAX-1] = '\0';
696 697 698 699 700 701 702 703 704

    if (remote_event_size > 0){
        void * m_dat = model_net_method_get_edata(net_id, msg);
        memcpy(m+1, m_dat, remote_event_size);
    }

    tw_event_send(e);
}

Jonathan Jenkins's avatar
Jonathan Jenkins committed
705 706 707 708
void model_net_method_send_msg_recv_event_rc(tw_lp *sender){
    codes_local_latency_reverse(sender);
}

709 710 711

void model_net_method_idle_event(tw_stime offset_ts, int is_recv_queue,
        tw_lp * lp){
712 713
    tw_event *e = tw_event_new(lp->gid, offset_ts, lp);
    model_net_wrap_msg *m_wrap = tw_event_data(e);
714 715
    msg_set_header(model_net_base_magic, MN_BASE_SCHED_NEXT, lp->gid,
            &m_wrap->h);
716
    m_wrap->msg.m_base.is_from_remote = is_recv_queue;
717 718 719
    tw_event_send(e);
}

720 721 722 723 724 725 726 727 728 729 730 731
void * model_net_method_get_edata(int net_id, void *msg){
    return (char*)msg + sizeof(model_net_wrap_msg) - msg_offsets[net_id];
}

/*
 * Local variables:
 *  c-indent-level: 4
 *  c-basic-offset: 4
 * End:
 *
 * vim: ft=c ts=8 sts=4 sw=4 expandtab
 */