dragonfly-custom.C 103 KB
Newer Older
Nikhil's avatar
Nikhil committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
/*
 * Copyright (C) 2013 University of Chicago.
 * See COPYRIGHT notice in top-level directory.
 *
 */

#include <ross.h>

#define DEBUG_LP 892
#include "codes/jenkins-hash.h"
#include "codes/codes_mapping.h"
#include "codes/codes.h"
#include "codes/model-net.h"
#include "codes/model-net-method.h"
#include "codes/model-net-lp.h"
16
#include "codes/net/dragonfly-custom.h"
Nikhil's avatar
Nikhil committed
17 18 19
#include "sys/file.h"
#include "codes/quickhash.h"
#include "codes/rc-stack.h"
20 21
#include <vector>
#include <map>
Nikhil's avatar
Nikhil committed
22

23
#define DUMP_CONNECTIONS 0
24
#define CREDIT_SIZE 8
25
#define DFLY_HASH_TABLE_SIZE 4999
26 27 28

// debugging parameters
#define TRACK -1
29
#define TRACK_PKT -1
30 31 32 33 34 35 36 37
#define TRACK_MSG -1
#define DEBUG 0
#define MAX_STATS 65536

#define LP_CONFIG_NM_TERM (model_net_lp_config_names[DRAGONFLY_CUSTOM])
#define LP_METHOD_NM_TERM (model_net_method_names[DRAGONFLY_CUSTOM])
#define LP_CONFIG_NM_ROUT (model_net_lp_config_names[DRAGONFLY_CUSTOM_ROUTER])
#define LP_METHOD_NM_ROUT (model_net_method_names[DRAGONFLY_CUSTOM_ROUTER])
Nikhil's avatar
Nikhil committed
38 39 40 41 42 43 44 45

using namespace std;
struct Link {
  int offset, type;
};
struct bLink {
  int offset, dest;
};
46 47 48 49 50
/* Each entry in the vector is for a router id
 * against each router id, there is a map of links (key of the map is the dest
 * router id)
 * link has information on type (green or black) and offset (number of links
 * between that particular source and dest router ID)*/
Nikhil's avatar
Nikhil committed
51
vector< map< int, vector<Link> > > intraGroupLinks;
52 53
/* contains mapping between source router and destination group via link (link
 * has dest ID)*/
Nikhil's avatar
Nikhil committed
54
vector< map< int, vector<bLink> > > interGroupLinks;
55
/*MM: Maintains a list of routers connecting the source and destination groups */
Nikhil's avatar
Nikhil committed
56 57 58 59 60 61 62 63 64 65
vector< vector< vector<int> > > connectionList;

struct IntraGroupLink {
  int src, dest, type;
};

struct InterGroupLink {
  int src, dest;
};

Nikhil's avatar
Nikhil committed
66

67 68 69
static int debug_slot_count = 0;
static long term_ecount, router_ecount, term_rev_ecount, router_rev_ecount;
static long packet_gen = 0, packet_fin = 0;
Nikhil's avatar
Nikhil committed
70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88

static double maxd(double a, double b) { return a < b ? b : a; }

/* minimal and non-minimal packet counts for adaptive routing*/
static int minimal_count=0, nonmin_count=0;
static int num_routers_per_mgrp = 0;

typedef struct dragonfly_param dragonfly_param;
/* annotation-specific parameters (unannotated entry occurs at the 
 * last index) */
static uint64_t                  num_params = 0;
static dragonfly_param         * all_params = NULL;
static const config_anno_map_t * anno_map   = NULL;

/* global variables for codes mapping */
static char lp_group_name[MAX_NAME_LENGTH];
static int mapping_grp_id, mapping_type_id, mapping_rep_id, mapping_offset;

/* router magic number */
89
static int router_magic_num = 0;
Nikhil's avatar
Nikhil committed
90 91

/* terminal magic number */
92
static int terminal_magic_num = 0;
Nikhil's avatar
Nikhil committed
93

94
static FILE * dragonfly_log = NULL;
Nikhil's avatar
Nikhil committed
95

96 97
static int sample_bytes_written = 0;
static int sample_rtr_bytes_written = 0;
Nikhil's avatar
Nikhil committed
98

99 100
static char cn_sample_file[MAX_NAME_LENGTH];
static char router_sample_file[MAX_NAME_LENGTH];
Nikhil's avatar
Nikhil committed
101

102 103 104
typedef struct terminal_custom_message_list terminal_custom_message_list;
struct terminal_custom_message_list {
    terminal_custom_message msg;
Nikhil's avatar
Nikhil committed
105
    char* event_data;
106 107
    terminal_custom_message_list *next;
    terminal_custom_message_list *prev;
Nikhil's avatar
Nikhil committed
108 109
};

110
static void init_terminal_custom_message_list(terminal_custom_message_list *thisO, 
111
    terminal_custom_message *inmsg) {
112 113 114 115
    thisO->msg = *inmsg;
    thisO->event_data = NULL;
    thisO->next = NULL;
    thisO->prev = NULL;
Nikhil's avatar
Nikhil committed
116 117
}

118 119 120 121
static void delete_terminal_custom_message_list(void *thisO) {
    terminal_custom_message_list* toDel = (terminal_custom_message_list*)thisO;
    if(toDel->event_data != NULL) free(toDel->event_data);
    free(toDel);
Nikhil's avatar
Nikhil committed
122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137
}

struct dragonfly_param
{
    // configuration parameters
    int num_routers; /*Number of routers in a group*/
    double local_bandwidth;/* bandwidth of the router-router channels within a group */
    double global_bandwidth;/* bandwidth of the inter-group router connections */
    double cn_bandwidth;/* bandwidth of the compute node channels connected to routers */
    int num_vcs; /* number of virtual channels */
    int local_vc_size; /* buffer size of the router-router channels */
    int global_vc_size; /* buffer size of the global channels */
    int cn_vc_size; /* buffer size of the compute node channels */
    int chunk_size; /* full-sized packets are broken into smaller chunks.*/
    // derived parameters
    int num_cn;
138 139 140 141
    int intra_grp_radix;
    int num_col_chans;
    int num_router_rows;
    int num_router_cols;
Nikhil's avatar
Nikhil committed
142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211
    int num_groups;
    int radix;
    int total_routers;
    int total_terminals;
    int num_global_channels;
    double cn_delay;
    double local_delay;
    double global_delay;
    double credit_delay;
    double router_delay;
};

struct dfly_hash_key
{
    uint64_t message_id;
    tw_lpid sender_id;
};

struct dfly_router_sample
{
    tw_lpid router_id;
    tw_stime* busy_time;
    int64_t* link_traffic_sample;
    tw_stime end_time;
    long fwd_events;
    long rev_events;
};

struct dfly_cn_sample
{
   tw_lpid terminal_id;
   long fin_chunks_sample;
   long data_size_sample;
   double fin_hops_sample;
   tw_stime fin_chunks_time;
   tw_stime busy_time_sample;
   tw_stime end_time;
   long fwd_events;
   long rev_events;
};

struct dfly_qhash_entry
{
   struct dfly_hash_key key;
   char * remote_event_data;
   int num_chunks;
   int remote_event_size;
   struct qhash_head hash_link;
};

/* handles terminal and router events like packet generate/send/receive/buffer */
typedef struct terminal_state terminal_state;
typedef struct router_state router_state;

/* dragonfly compute node data structure */
struct terminal_state
{
   uint64_t packet_counter;

   int packet_gen;
   int packet_fin;

   // Dragonfly specific parameters
   unsigned int router_id;
   unsigned int terminal_id;

   // Each terminal will have an input and output channel with the router
   int* vc_occupancy; // NUM_VC
   int num_vcs;
   tw_stime terminal_available_time;
212 213
   terminal_custom_message_list **terminal_msgs;
   terminal_custom_message_list **terminal_msgs_tail;
Nikhil's avatar
Nikhil committed
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
   int in_send_loop;
   struct mn_stats dragonfly_stats_array[CATEGORY_MAX];

   struct rc_stack * st;
   int issueIdle;
   int terminal_length;

   const char * anno;
   const dragonfly_param *params;

   struct qhash_table *rank_tbl;
   uint64_t rank_tbl_pop;

   tw_stime   total_time;
   uint64_t total_msg_size;
   double total_hops;
   long finished_msgs;
   long finished_chunks;
   long finished_packets;

   tw_stime last_buf_full;
   tw_stime busy_time;
   char output_buf[4096];
   /* For LP suspend functionality */
   int error_ct;

   /* For sampling */
   long fin_chunks_sample;
   long data_size_sample;
   double fin_hops_sample;
   tw_stime fin_chunks_time;
   tw_stime busy_time_sample;

   char sample_buf[4096];
   struct dfly_cn_sample * sample_stat;
   int op_arr_size;
   int max_arr_size;
   
   /* for logging forward and reverse events */
   long fwd_events;
   long rev_events;
};

/* terminal event type (1-4) */
258
typedef enum event_t
Nikhil's avatar
Nikhil committed
259 260 261 262 263 264 265 266
{
  T_GENERATE=1,
  T_ARRIVE,
  T_SEND,
  T_BUFFER,
  R_SEND,
  R_ARRIVE,
  R_BUFFER,
267
} event_t;
Nikhil's avatar
Nikhil committed
268 269 270 271 272 273

/* whether the last hop of a packet was global, local or a terminal */
enum last_hop
{
   GLOBAL,
   LOCAL,
274 275
   TERMINAL,
   ROOT
Nikhil's avatar
Nikhil committed
276 277 278 279 280 281 282 283 284 285 286 287 288
};

/* three forms of routing algorithms available, adaptive routing is not
 * accurate and fully functional in the current version as the formulas
 * for detecting load on global channels are not very accurate */
enum ROUTING_ALGO
{
    MINIMAL = 0,
    NON_MINIMAL,
    ADAPTIVE,
    PROG_ADAPTIVE
};

289 290 291 292 293
enum LINK_TYPE
{
    GREEN,
    BLACK,
};
Nikhil's avatar
Nikhil committed
294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309
struct router_state
{
   unsigned int router_id;
   int group_id;
   int op_arr_size;
   int max_arr_size;

   int* global_channel; 
   
   tw_stime* next_output_available_time;
   tw_stime* cur_hist_start_time;
   tw_stime* last_buf_full;

   tw_stime* busy_time;
   tw_stime* busy_time_sample;

310 311 312 313
   terminal_custom_message_list ***pending_msgs;
   terminal_custom_message_list ***pending_msgs_tail;
   terminal_custom_message_list ***queued_msgs;
   terminal_custom_message_list ***queued_msgs_tail;
Nikhil's avatar
Nikhil committed
314 315 316
   int *in_send_loop;
   int *queued_count;
   struct rc_stack * st;
317 318

   int* last_sent_chan;
Nikhil's avatar
Nikhil committed
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
   int** vc_occupancy;
   int64_t* link_traffic;
   int64_t * link_traffic_sample;

   const char * anno;
   const dragonfly_param *params;

   int* prev_hist_num;
   int* cur_hist_num;
   
   char output_buf[4096];
   char output_buf2[4096];

   struct dfly_router_sample * rsamples;
   
   long fwd_events;
   long rev_events;
};

static short routing = MINIMAL;

static tw_stime         dragonfly_total_time = 0;
static tw_stime         dragonfly_max_latency = 0;


static long long       total_hops = 0;
static long long       N_finished_packets = 0;
static long long       total_msg_sz = 0;
static long long       N_finished_msgs = 0;
static long long       N_finished_chunks = 0;

static int dragonfly_rank_hash_compare(
        void *key, struct qhash_head *link)
{
    struct dfly_hash_key *message_key = (struct dfly_hash_key *)key;
    struct dfly_qhash_entry *tmp = NULL;

    tmp = qhash_entry(link, struct dfly_qhash_entry, hash_link);
    
    if (tmp->key.message_id == message_key->message_id
            && tmp->key.sender_id == message_key->sender_id)
        return 1;

    return 0;
}
static int dragonfly_hash_func(void *k, int table_size)
{
    struct dfly_hash_key *tmp = (struct dfly_hash_key *)k;
367 368 369 370
    uint32_t pc = 0, pb = 0;	
    bj_hashlittle2(tmp, sizeof(*tmp), &pc, &pb);
    return (int)(pc % (table_size - 1));
    /*uint64_t key = (~tmp->message_id) + (tmp->message_id << 18);
Nikhil's avatar
Nikhil committed
371 372 373
    key = key * 21;
    key = ~key ^ (tmp->sender_id >> 4);
    key = key * tmp->sender_id; 
374
    return (int)(key & (table_size - 1));*/
Nikhil's avatar
Nikhil committed
375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392
}

/* convert GiB/s and bytes to ns */
static tw_stime bytes_to_ns(uint64_t bytes, double GB_p_s)
{
    tw_stime time;

    /* bytes to GB */
    time = ((double)bytes)/(1024.0*1024.0*1024.0);
    /* GiB to s */
    time = time / GB_p_s;
    /* s to ns */
    time = time * 1000.0 * 1000.0 * 1000.0;

    return(time);
}

/* returns the dragonfly message size */
393
int dragonfly_custom_get_msg_sz(void)
Nikhil's avatar
Nikhil committed
394
{
395
	   return sizeof(terminal_custom_message);
Nikhil's avatar
Nikhil committed
396 397 398 399
}

static void free_tmp(void * ptr)
{
400
    struct dfly_qhash_entry * dfly = (dfly_qhash_entry *)ptr; 
401 402 403 404 405
    if(dfly->remote_event_data)
        free(dfly->remote_event_data);
   
    if(dfly)
        free(dfly);
Nikhil's avatar
Nikhil committed
406
}
407

408 409 410
static void append_to_terminal_custom_message_list(  
        terminal_custom_message_list ** thisq,
        terminal_custom_message_list ** thistail,
Nikhil's avatar
Nikhil committed
411
        int index, 
412
        terminal_custom_message_list *msg) {
Nikhil's avatar
Nikhil committed
413 414 415 416 417 418 419 420 421
    if(thisq[index] == NULL) {
        thisq[index] = msg;
    } else {
        thistail[index]->next = msg;
        msg->prev = thistail[index];
    } 
    thistail[index] = msg;
}

422 423 424
static void prepend_to_terminal_custom_message_list(  
        terminal_custom_message_list ** thisq,
        terminal_custom_message_list ** thistail,
Nikhil's avatar
Nikhil committed
425
        int index, 
426
        terminal_custom_message_list *msg) {
Nikhil's avatar
Nikhil committed
427 428 429 430 431 432 433 434 435
    if(thisq[index] == NULL) {
        thistail[index] = msg;
    } else {
        thisq[index]->prev = msg;
        msg->next = thisq[index];
    } 
    thisq[index] = msg;
}

436 437 438
static terminal_custom_message_list* return_head(
        terminal_custom_message_list ** thisq,
        terminal_custom_message_list ** thistail,
Nikhil's avatar
Nikhil committed
439
        int index) {
440
    terminal_custom_message_list *head = thisq[index];
Nikhil's avatar
Nikhil committed
441 442 443 444 445 446 447 448 449 450 451 452
    if(head != NULL) {
        thisq[index] = head->next;
        if(head->next != NULL) {
            head->next->prev = NULL;
            head->next = NULL;
        } else {
            thistail[index] = NULL;
        }
    }
    return head;
}

453 454 455
static terminal_custom_message_list* return_tail(
        terminal_custom_message_list ** thisq,
        terminal_custom_message_list ** thistail,
Nikhil's avatar
Nikhil committed
456
        int index) {
457
    terminal_custom_message_list *tail = thistail[index];
Nikhil's avatar
Nikhil committed
458 459 460 461 462 463 464 465 466 467 468 469 470 471 472
    assert(tail);
    if(tail->prev != NULL) {
        tail->prev->next = NULL;
        thistail[index] = tail->prev;
        tail->prev = NULL;
    } else {
        thistail[index] = NULL;
        thisq[index] = NULL;
    }
    return tail;
}

static void dragonfly_read_config(const char * anno, dragonfly_param *params){
    // shorthand
    dragonfly_param *p = params;
Nikhil's avatar
Nikhil committed
473
    int myRank;
474
    MPI_Comm_rank(MPI_COMM_CODES, &myRank);
Nikhil's avatar
Nikhil committed
475

476
    int rc = configuration_get_value_int(&config, "PARAMS", "local_vc_size", anno, &p->local_vc_size);
Nikhil's avatar
Nikhil committed
477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537
    if(rc) {
        p->local_vc_size = 1024;
        fprintf(stderr, "Buffer size of local channels not specified, setting to %d\n", p->local_vc_size);
    }

    rc = configuration_get_value_int(&config, "PARAMS", "global_vc_size", anno, &p->global_vc_size);
    if(rc) {
        p->global_vc_size = 2048;
        fprintf(stderr, "Buffer size of global channels not specified, setting to %d\n", p->global_vc_size);
    }

    rc = configuration_get_value_int(&config, "PARAMS", "cn_vc_size", anno, &p->cn_vc_size);
    if(rc) {
        p->cn_vc_size = 1024;
        fprintf(stderr, "Buffer size of compute node channels not specified, setting to %d\n", p->cn_vc_size);
    }

    rc = configuration_get_value_int(&config, "PARAMS", "chunk_size", anno, &p->chunk_size);
    if(rc) {
        p->chunk_size = 512;
        fprintf(stderr, "Chunk size for packets is specified, setting to %d\n", p->chunk_size);
    }

    rc = configuration_get_value_double(&config, "PARAMS", "local_bandwidth", anno, &p->local_bandwidth);
    if(rc) {
        p->local_bandwidth = 5.25;
        fprintf(stderr, "Bandwidth of local channels not specified, setting to %lf\n", p->local_bandwidth);
    }

    rc = configuration_get_value_double(&config, "PARAMS", "global_bandwidth", anno, &p->global_bandwidth);
    if(rc) {
        p->global_bandwidth = 4.7;
        fprintf(stderr, "Bandwidth of global channels not specified, setting to %lf\n", p->global_bandwidth);
    }

    rc = configuration_get_value_double(&config, "PARAMS", "cn_bandwidth", anno, &p->cn_bandwidth);
    if(rc) {
        p->cn_bandwidth = 5.25;
        fprintf(stderr, "Bandwidth of compute node channels not specified, setting to %lf\n", p->cn_bandwidth);
    }

    p->router_delay = 50;
    configuration_get_value_double(&config, "PARAMS", "router_delay", anno,
            &p->router_delay);

    configuration_get_value(&config, "PARAMS", "cn_sample_file", anno, cn_sample_file,
            MAX_NAME_LENGTH);
    configuration_get_value(&config, "PARAMS", "rt_sample_file", anno, router_sample_file,
            MAX_NAME_LENGTH);
    
    char routing_str[MAX_NAME_LENGTH];
    configuration_get_value(&config, "PARAMS", "routing", anno, routing_str,
            MAX_NAME_LENGTH);
    if(strcmp(routing_str, "minimal") == 0)
        routing = MINIMAL;
    else if(strcmp(routing_str, "nonminimal")==0 || 
            strcmp(routing_str,"non-minimal")==0)
        routing = NON_MINIMAL;
    else if (strcmp(routing_str, "adaptive") == 0)
        routing = ADAPTIVE;
    else if (strcmp(routing_str, "prog-adaptive") == 0)
Nikhil's avatar
Nikhil committed
538
	      routing = PROG_ADAPTIVE;
Nikhil's avatar
Nikhil committed
539 540 541 542 543 544 545
    else
    {
        fprintf(stderr, 
                "No routing protocol specified, setting to minimal routing\n");
        routing = -1;
    }

546 547 548 549 550
    if(routing == PROG_ADAPTIVE)
        p->num_vcs = 10;
    else
        p->num_vcs = 8;
    
Nikhil's avatar
Nikhil committed
551 552 553
    rc = configuration_get_value_int(&config, "PARAMS", "num_groups", anno, &p->num_groups);
    if(rc) {
      printf("Number of groups not specified. Aborting");
554
      MPI_Abort(MPI_COMM_CODES, 1);
Nikhil's avatar
Nikhil committed
555
    }
556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573
    rc = configuration_get_value_int(&config, "PARAMS", "num_col_chans", anno, &p->num_col_chans);
    if(rc) {
//        printf("\n Number of links connecting chassis not specified, setting to default value 3 ");
        p->num_col_chans = 3;
    }
    rc = configuration_get_value_int(&config, "PARAMS", "num_router_rows", anno, &p->num_router_rows);
    if(rc) {
        printf("\n Number of router rows not specified, setting to 6 ");
        p->num_router_rows = 6;
    }
    rc = configuration_get_value_int(&config, "PARAMS", "num_router_cols", anno, &p->num_router_cols);
    if(rc) {
        printf("\n Number of router columns not specified, setting to 16 ");
        p->num_router_cols = 16;
    }
    p->intra_grp_radix = p->num_router_cols + (p->num_router_rows * p->num_col_chans);
    p->num_routers = p->num_router_rows * p->num_router_cols;
    
574
    rc = configuration_get_value_int(&config, "PARAMS", "num_cns_per_router", anno, &p->num_cn);
Nikhil's avatar
Nikhil committed
575
    if(rc) {
576 577
        printf("\n Number of cns per router not specified, setting to %d ", p->num_routers/2);
        p->num_cn = p->num_routers/2;
Nikhil's avatar
Nikhil committed
578
    }
579

580 581
    rc = configuration_get_value_int(&config, "PARAMS", "num_global_channels", anno, &p->num_global_channels);
    if(rc) {
582 583
        printf("\n Number of global channels per router not specified, setting to 10 ");
        p->num_global_channels = 10;
584
    }
585
    p->radix = p->num_router_cols + (p->num_col_chans * p->num_router_rows) + p->num_global_channels + p->num_cn;
Nikhil's avatar
Nikhil committed
586 587
    p->total_routers = p->num_groups * p->num_routers;
    p->total_terminals = p->total_routers * p->num_cn;
Nikhil's avatar
Nikhil committed
588 589 590 591
    
    // read intra group connections, store from a router's perspective
    // all links to the same router form a vector
    char intraFile[MAX_NAME_LENGTH];
592
    configuration_get_value(&config, "PARAMS", "intra-group-connections", 
Nikhil's avatar
Nikhil committed
593
        anno, intraFile, MAX_NAME_LENGTH);
594 595
    if(strlen(intraFile) <= 0) {
      tw_error(TW_LOC, "Intra group connections file not specified. Aborting");
Nikhil's avatar
Nikhil committed
596 597
    }
    FILE *groupFile = fopen(intraFile, "rb");
598 599 600
    if(!groupFile)
        tw_error(TW_LOC, "intra-group file not found ");

Nikhil's avatar
Nikhil committed
601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622
    if(!myRank)
      printf("Reading intra-group connectivity file: %s\n", intraFile);

    {
      vector< int > offsets;
      offsets.resize(p->num_routers, 0);
      intraGroupLinks.resize(p->num_routers);
      IntraGroupLink newLink;

      while(fread(&newLink, sizeof(IntraGroupLink), 1, groupFile) != 0) {
        Link tmpLink;
        tmpLink.type = newLink.type;
        tmpLink.offset = offsets[newLink.src]++;
        intraGroupLinks[newLink.src][newLink.dest].push_back(tmpLink);
      }
    }

    fclose(groupFile);

    // read inter group connections, store from a router's perspective
    // also create a group level table that tells all the connecting routers
    char interFile[MAX_NAME_LENGTH];
623
    configuration_get_value(&config, "PARAMS", "inter-group-connections", 
Nikhil's avatar
Nikhil committed
624
        anno, interFile, MAX_NAME_LENGTH);
625 626
    if(strlen(interFile) <= 0) {
      tw_error(TW_LOC, "Inter group connections file not specified. Aborting");
Nikhil's avatar
Nikhil committed
627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660
    }
    FILE *systemFile = fopen(interFile, "rb");
    if(!myRank)
      printf("Reading inter-group connectivity file: %s\n", interFile);

    {
      vector< int > offsets;
      offsets.resize(p->total_routers, 0);
      interGroupLinks.resize(p->total_routers);
      connectionList.resize(p->num_groups);
      for(int g = 0; g < connectionList.size(); g++) {
        connectionList[g].resize(p->num_groups);
      }
      InterGroupLink newLink;

      while(fread(&newLink, sizeof(InterGroupLink), 1, systemFile) != 0) {
        bLink tmpLink;
        tmpLink.dest = newLink.dest;
        int srcG = newLink.src / p->num_routers;
        int destG = newLink.dest / p->num_routers;
        tmpLink.offset = offsets[newLink.src]++;
        interGroupLinks[newLink.src][destG].push_back(tmpLink);
        int r;
        for(r = 0; r < connectionList[srcG][destG].size(); r++) {
          if(connectionList[srcG][destG][r] == newLink.src) break;
        }
        if(r == connectionList[srcG][destG].size()) {
          connectionList[srcG][destG].push_back(newLink.src);
        }
      }
    }

    fclose(systemFile);

661
#if DUMP_CONNECTIONS == 1
Nikhil's avatar
Nikhil committed
662 663 664 665 666 667 668 669
    printf("Dumping intra-group connections\n");
    for(int a = 0; a < intraGroupLinks.size(); a++) {
      printf("Connections for router %d\n", a);
      map< int, vector<Link> >  &curMap = intraGroupLinks[a];
      map< int, vector<Link> >::iterator it = curMap.begin();
      for(; it != curMap.end(); it++) {
        printf(" ( %d - ", it->first);
        for(int l = 0; l < it->second.size(); l++) {
670 671
          // offset is number of local connections
          // type is blue or green according to Cray architecture 
Nikhil's avatar
Nikhil committed
672 673 674 675 676 677 678
          printf("%d,%d ", it->second[l].offset, it->second[l].type);
        }
        printf(")");
      }
      printf("\n");
    }
#endif
679
#if DUMP_CONNECTIONS == 1
Nikhil's avatar
Nikhil committed
680 681 682
    printf("Dumping inter-group connections\n");
    for(int a = 0; a < interGroupLinks.size(); a++) {
      printf("Connections for router %d\n", a);
683 684
      map< int, vector<bLink> >  &curMap = interGroupLinks[a];
      map< int, vector<bLink> >::iterator it = curMap.begin();
Nikhil's avatar
Nikhil committed
685
      for(; it != curMap.end(); it++) {
686
        // dest group ID 
Nikhil's avatar
Nikhil committed
687 688
        printf(" ( %d - ", it->first);
        for(int l = 0; l < it->second.size(); l++) {
689 690
            // dest is dest router ID
            // offset is number of global connections
Nikhil's avatar
Nikhil committed
691 692 693 694 695 696 697 698
          printf("%d,%d ", it->second[l].offset, it->second[l].dest);
        }
        printf(")");
      }
      printf("\n");
    }
#endif

699
#if DUMP_CONNECTIONS == 1
Nikhil's avatar
Nikhil committed
700 701 702 703 704 705 706 707 708 709 710 711 712
    printf("Dumping source aries for global connections\n");
    for(int g = 0; g < p->num_groups; g++) {
      for(int g1 = 0; g1 < p->num_groups; g1++) {
        printf(" ( ");
        for(int l = 0; l < connectionList[g][g1].size(); l++) {
          printf("%d ", connectionList[g][g1][l]);
        }
        printf(")");
      }
      printf("\n");
    }
#endif
    if(!myRank) {
713
        printf("\n Total nodes %d routers %d groups %d routers per group %d radix %d\n",
Nikhil's avatar
Nikhil committed
714
                p->num_cn * p->total_routers, p->total_routers, p->num_groups,
715
                p->num_routers, p->radix);
Nikhil's avatar
Nikhil committed
716
    }
Nikhil's avatar
Nikhil committed
717

Nikhil's avatar
Nikhil committed
718 719 720
    p->cn_delay = bytes_to_ns(p->chunk_size, p->cn_bandwidth);
    p->local_delay = bytes_to_ns(p->chunk_size, p->local_bandwidth);
    p->global_delay = bytes_to_ns(p->chunk_size, p->global_bandwidth);
721
    p->credit_delay = bytes_to_ns(CREDIT_SIZE, p->local_bandwidth); //assume 8 bytes packet
Nikhil's avatar
Nikhil committed
722 723
}

724
void dragonfly_custom_configure(){
Nikhil's avatar
Nikhil committed
725 726 727
    anno_map = codes_mapping_get_lp_anno_map(LP_CONFIG_NM_TERM);
    assert(anno_map);
    num_params = anno_map->num_annos + (anno_map->has_unanno_lp > 0);
728
    all_params = (dragonfly_param *)malloc(num_params * sizeof(*all_params));
Nikhil's avatar
Nikhil committed
729 730 731 732 733 734 735 736 737 738 739

    for (int i = 0; i < anno_map->num_annos; i++){
        const char * anno = anno_map->annotations[i].ptr;
        dragonfly_read_config(anno, &all_params[i]);
    }
    if (anno_map->has_unanno_lp > 0){
        dragonfly_read_config(NULL, &all_params[anno_map->num_annos]);
    }
}

/* report dragonfly statistics like average and maximum packet latency, average number of hops traversed */
740
void dragonfly_custom_report_stats()
Nikhil's avatar
Nikhil committed
741 742 743 744 745 746 747
{
   long long avg_hops, total_finished_packets, total_finished_chunks;
   long long total_finished_msgs, final_msg_sz;
   tw_stime avg_time, max_time;
   int total_minimal_packets, total_nonmin_packets;
   long total_gen, total_fin;

748 749 750 751 752 753 754
   MPI_Reduce( &total_hops, &avg_hops, 1, MPI_LONG_LONG, MPI_SUM, 0, MPI_COMM_CODES);
   MPI_Reduce( &N_finished_packets, &total_finished_packets, 1, MPI_LONG_LONG, MPI_SUM, 0, MPI_COMM_CODES);
   MPI_Reduce( &N_finished_msgs, &total_finished_msgs, 1, MPI_LONG_LONG, MPI_SUM, 0, MPI_COMM_CODES);
   MPI_Reduce( &N_finished_chunks, &total_finished_chunks, 1, MPI_LONG_LONG, MPI_SUM, 0, MPI_COMM_CODES);
   MPI_Reduce( &total_msg_sz, &final_msg_sz, 1, MPI_LONG_LONG, MPI_SUM, 0, MPI_COMM_CODES);
   MPI_Reduce( &dragonfly_total_time, &avg_time, 1,MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_CODES);
   MPI_Reduce( &dragonfly_max_latency, &max_time, 1, MPI_DOUBLE, MPI_MAX, 0, MPI_COMM_CODES);
Nikhil's avatar
Nikhil committed
755
   
756 757
   MPI_Reduce( &packet_gen, &total_gen, 1, MPI_LONG, MPI_SUM, 0, MPI_COMM_CODES);
   MPI_Reduce( &packet_fin, &total_fin, 1, MPI_LONG, MPI_SUM, 0, MPI_COMM_CODES);
Nikhil's avatar
Nikhil committed
758 759
   if(routing == ADAPTIVE || routing == PROG_ADAPTIVE)
    {
760 761
	MPI_Reduce(&minimal_count, &total_minimal_packets, 1, MPI_INT, MPI_SUM, 0, MPI_COMM_CODES);
 	MPI_Reduce(&nonmin_count, &total_nonmin_packets, 1, MPI_INT, MPI_SUM, 0, MPI_COMM_CODES);
Nikhil's avatar
Nikhil committed
762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780
    }

   /* print statistics */
   if(!g_tw_mynode)
   {	
      printf(" Average number of hops traversed %f average chunk latency %lf us maximum chunk latency %lf us avg message size %lf bytes finished messages %lld finished chunks %lld \n", 
              (float)avg_hops/total_finished_chunks, avg_time/(total_finished_chunks*1000), max_time/1000, (float)final_msg_sz/total_finished_msgs, total_finished_msgs, total_finished_chunks);
     if(routing == ADAPTIVE || routing == PROG_ADAPTIVE)
              printf("\n ADAPTIVE ROUTING STATS: %d chunks routed minimally %d chunks routed non-minimally completed packets %lld \n", 
                      total_minimal_packets, total_nonmin_packets, total_finished_chunks);
 
      printf("\n Total packets generated %ld finished %ld \n", total_gen, total_fin);
   }
   return;
}


/* initialize a dragonfly compute node terminal */
void 
781
terminal_custom_init( terminal_state * s, 
Nikhil's avatar
Nikhil committed
782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810
	       tw_lp * lp )
{
    s->packet_gen = 0;
    s->packet_fin = 0;

    uint32_t h1 = 0, h2 = 0; 
    bj_hashlittle2(LP_METHOD_NM_TERM, strlen(LP_METHOD_NM_TERM), &h1, &h2);
    terminal_magic_num = h1 + h2;
    
    int i;
    char anno[MAX_NAME_LENGTH];

    // Assign the global router ID
    // TODO: be annotation-aware
    codes_mapping_get_lp_info(lp->gid, lp_group_name, &mapping_grp_id, NULL,
            &mapping_type_id, anno, &mapping_rep_id, &mapping_offset);
    if (anno[0] == '\0'){
        s->anno = NULL;
        s->params = &all_params[num_params-1];
    }
    else{
        s->anno = strdup(anno);
        int id = configuration_get_annotation_index(anno, anno_map);
        s->params = &all_params[id];
    }

   int num_lps = codes_mapping_get_lp_count(lp_group_name, 1, LP_CONFIG_NM_TERM,
           s->anno, 0);

811
   s->terminal_id = codes_mapping_get_lp_relative_id(lp->gid, 0, 0);
812
   s->router_id=(int)s->terminal_id / (s->params->num_cn);
Nikhil's avatar
Nikhil committed
813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837
   s->terminal_available_time = 0.0;
   s->packet_counter = 0;
   
   s->finished_msgs = 0;
   s->finished_chunks = 0;
   s->finished_packets = 0;
   s->total_time = 0.0;
   s->total_msg_size = 0;

   s->last_buf_full = 0.0;
   s->busy_time = 0.0;

   s->fwd_events = 0;
   s->rev_events = 0;

   rc_stack_create(&s->st);
   s->num_vcs = 1;
   s->vc_occupancy = (int*)malloc(s->num_vcs * sizeof(int));

   for( i = 0; i < s->num_vcs; i++ )
    {
      s->vc_occupancy[i]=0;
    }


838
   s->rank_tbl = NULL;
Nikhil's avatar
Nikhil committed
839
   s->terminal_msgs = 
840
       (terminal_custom_message_list**)malloc(s->num_vcs*sizeof(terminal_custom_message_list*));
Nikhil's avatar
Nikhil committed
841
   s->terminal_msgs_tail = 
842
       (terminal_custom_message_list**)malloc(s->num_vcs*sizeof(terminal_custom_message_list*));
Nikhil's avatar
Nikhil committed
843 844 845 846 847 848 849 850 851 852 853
   s->terminal_msgs[0] = NULL;
   s->terminal_msgs_tail[0] = NULL;
   s->terminal_length = 0;
   s->in_send_loop = 0;
   s->issueIdle = 0;

   return;
}

/* sets up the router virtual channels, global channels, 
 * local channels, compute node channels */
854
void router_custom_setup(router_state * r, tw_lp * lp)
Nikhil's avatar
Nikhil committed
855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875
{
    uint32_t h1 = 0, h2 = 0; 
    bj_hashlittle2(LP_METHOD_NM_ROUT, strlen(LP_METHOD_NM_ROUT), &h1, &h2);
    router_magic_num = h1 + h2;
    
    char anno[MAX_NAME_LENGTH];
    codes_mapping_get_lp_info(lp->gid, lp_group_name, &mapping_grp_id, NULL,
            &mapping_type_id, anno, &mapping_rep_id, &mapping_offset);

    if (anno[0] == '\0'){
        r->anno = NULL;
        r->params = &all_params[num_params-1];
    } else{
        r->anno = strdup(anno);
        int id = configuration_get_annotation_index(anno, anno_map);
        r->params = &all_params[id];
    }

    // shorthand
    const dragonfly_param *p = r->params;

876
    num_routers_per_mgrp = codes_mapping_get_lp_count (lp_group_name, 1, "modelnet_dragonfly_custom_router",
Nikhil's avatar
Nikhil committed
877 878 879 880 881 882 883 884 885 886 887 888 889
            NULL, 0);
    int num_grp_reps = codes_mapping_get_group_reps(lp_group_name);
    if(p->total_routers != num_grp_reps * num_routers_per_mgrp)
        tw_error(TW_LOC, "\n Config error: num_routers specified %d total routers computed in the network %d "
                "does not match with repetitions * dragonfly_router %d  ",
                p->num_routers, p->total_routers, num_grp_reps * num_routers_per_mgrp);

   r->router_id=mapping_rep_id + mapping_offset;
   r->group_id=r->router_id/p->num_routers;

   r->fwd_events = 0;
   r->rev_events = 0;

890

Nikhil's avatar
Nikhil committed
891 892 893 894 895 896 897
   r->global_channel = (int*)malloc(p->num_global_channels * sizeof(int));
   r->next_output_available_time = (tw_stime*)malloc(p->radix * sizeof(tw_stime));
   r->cur_hist_start_time = (tw_stime*)malloc(p->radix * sizeof(tw_stime));
   r->link_traffic = (int64_t*)malloc(p->radix * sizeof(int64_t));
   r->link_traffic_sample = (int64_t*)malloc(p->radix * sizeof(int64_t));
   r->cur_hist_num = (int*)malloc(p->radix * sizeof(int));
   r->prev_hist_num = (int*)malloc(p->radix * sizeof(int));
898 899
  
   r->last_sent_chan = (int*) malloc(p->num_router_rows * sizeof(int));
Nikhil's avatar
Nikhil committed
900 901 902
   r->vc_occupancy = (int**)malloc(p->radix * sizeof(int*));
   r->in_send_loop = (int*)malloc(p->radix * sizeof(int));
   r->pending_msgs = 
903
    (terminal_custom_message_list***)malloc(p->radix * sizeof(terminal_custom_message_list**));
Nikhil's avatar
Nikhil committed
904
   r->pending_msgs_tail = 
905
    (terminal_custom_message_list***)malloc(p->radix * sizeof(terminal_custom_message_list**));
Nikhil's avatar
Nikhil committed
906
   r->queued_msgs = 
907
    (terminal_custom_message_list***)malloc(p->radix * sizeof(terminal_custom_message_list**));
Nikhil's avatar
Nikhil committed
908
   r->queued_msgs_tail = 
909
    (terminal_custom_message_list***)malloc(p->radix * sizeof(terminal_custom_message_list**));
Nikhil's avatar
Nikhil committed
910 911 912 913 914 915
   r->queued_count = (int*)malloc(p->radix * sizeof(int));
   r->last_buf_full = (tw_stime*)malloc(p->radix * sizeof(tw_stime));
   r->busy_time = (tw_stime*)malloc(p->radix * sizeof(tw_stime));
   r->busy_time_sample = (tw_stime*)malloc(p->radix * sizeof(tw_stime));

   rc_stack_create(&r->st);
916 917 918 919

   for(int i = 0; i < p->num_router_rows; i++)
       r->last_sent_chan[i] = 0;

Nikhil's avatar
Nikhil committed
920 921 922 923 924 925 926 927 928 929 930 931 932 933 934
   for(int i=0; i < p->radix; i++)
    {
       // Set credit & router occupancy
    r->last_buf_full[i] = 0.0;
    r->busy_time[i] = 0.0;
    r->busy_time_sample[i] = 0.0;
	r->next_output_available_time[i]=0;
	r->cur_hist_start_time[i] = 0;
    r->link_traffic[i]=0;
    r->link_traffic_sample[i] = 0;
	r->cur_hist_num[i] = 0;
	r->prev_hist_num[i] = 0;
    r->queued_count[i] = 0;    
    r->in_send_loop[i] = 0;
    r->vc_occupancy[i] = (int*)malloc(p->num_vcs * sizeof(int));
935 936 937 938 939 940 941 942
    r->pending_msgs[i] = (terminal_custom_message_list**)malloc(p->num_vcs * 
        sizeof(terminal_custom_message_list*));
    r->pending_msgs_tail[i] = (terminal_custom_message_list**)malloc(p->num_vcs * 
        sizeof(terminal_custom_message_list*));
    r->queued_msgs[i] = (terminal_custom_message_list**)malloc(p->num_vcs * 
        sizeof(terminal_custom_message_list*));
    r->queued_msgs_tail[i] = (terminal_custom_message_list**)malloc(p->num_vcs * 
        sizeof(terminal_custom_message_list*));
Nikhil's avatar
Nikhil committed
943 944 945 946 947 948 949 950 951 952 953 954 955
        for(int j = 0; j < p->num_vcs; j++) {
            r->vc_occupancy[i][j] = 0;
            r->pending_msgs[i][j] = NULL;
            r->pending_msgs_tail[i][j] = NULL;
            r->queued_msgs[i][j] = NULL;
            r->queued_msgs_tail[i][j] = NULL;
        }
    }
   return;
}	


/* dragonfly packet event , generates a dragonfly packet on the compute node */
956
static tw_stime dragonfly_custom_packet_event(
Nikhil's avatar
Nikhil committed
957 958 959 960 961 962 963 964 965 966 967 968 969 970
        model_net_request const * req,
        uint64_t message_offset,
        uint64_t packet_size,
        tw_stime offset,
        mn_sched_params const * sched_params,
        void const * remote_event,
        void const * self_event,
        tw_lp *sender,
        int is_last_pckt)
{
    (void)message_offset;
    (void)sched_params;
    tw_event * e_new;
    tw_stime xfer_to_nic_time;
971
    terminal_custom_message * msg;
Nikhil's avatar
Nikhil committed
972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016
    char* tmp_ptr;

    xfer_to_nic_time = codes_local_latency(sender); 
    //e_new = tw_event_new(sender->gid, xfer_to_nic_time+offset, sender);
    //msg = tw_event_data(e_new);
    e_new = model_net_method_event_new(sender->gid, xfer_to_nic_time+offset,
            sender, DRAGONFLY, (void**)&msg, (void**)&tmp_ptr);
    strcpy(msg->category, req->category);
    msg->final_dest_gid = req->final_dest_lp;
    msg->total_size = req->msg_size;
    msg->sender_lp=req->src_lp;
    msg->sender_mn_lp = sender->gid;
    msg->packet_size = packet_size;
    msg->travel_start_time = tw_now(sender);
    msg->remote_event_size_bytes = 0;
    msg->local_event_size_bytes = 0;
    msg->type = T_GENERATE;
    msg->dest_terminal_id = req->dest_mn_lp;
    msg->message_id = req->msg_id;
    msg->is_pull = req->is_pull;
    msg->pull_size = req->pull_size;
    msg->magic = terminal_magic_num; 
    msg->msg_start_time = req->msg_start_time;

    if(is_last_pckt) /* Its the last packet so pass in remote and local event information*/
      {
	if(req->remote_event_size > 0)
	 {
		msg->remote_event_size_bytes = req->remote_event_size;
		memcpy(tmp_ptr, remote_event, req->remote_event_size);
		tmp_ptr += req->remote_event_size;
	}
	if(req->self_event_size > 0)
	{
		msg->local_event_size_bytes = req->self_event_size;
		memcpy(tmp_ptr, self_event, req->self_event_size);
		tmp_ptr += req->self_event_size;
	}
     }
	   //printf("\n dragonfly remote event %d local event %d last packet %d %lf ", msg->remote_event_size_bytes, msg->local_event_size_bytes, is_last_pckt, xfer_to_nic_time);
    tw_event_send(e_new);
    return xfer_to_nic_time;
}

/* dragonfly packet event reverse handler */
1017
static void dragonfly_custom_packet_event_rc(tw_lp *sender)
Nikhil's avatar
Nikhil committed
1018 1019 1020 1021 1022 1023
{
	  codes_local_latency_reverse(sender);
	    return;
}

/*When a packet is sent from the current router and a buffer slot becomes available, a credit is sent back to schedule another packet event*/
1024
static void router_credit_send(router_state * s, terminal_custom_message * msg, 
Nikhil's avatar
Nikhil committed
1025 1026 1027
  tw_lp * lp, int sq) {
  tw_event * buf_e;
  tw_stime ts;
1028
  terminal_custom_message * buf_msg;
Nikhil's avatar
Nikhil committed
1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039

  int dest = 0,  type = R_BUFFER;
  int is_terminal = 0;

  const dragonfly_param *p = s->params;
 
  // Notify sender terminal about available buffer space
  if(msg->last_hop == TERMINAL) {
    dest = msg->src_terminal_id;
    type = T_BUFFER;
    is_terminal = 1;
1040 1041 1042 1043
  } else if(msg->last_hop == GLOBAL 
          || msg->last_hop == LOCAL
          || msg->last_hop == ROOT)
  {
Nikhil's avatar
Nikhil committed
1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073
    dest = msg->intm_lp_id;
  } else
    printf("\n Invalid message type");

  ts = g_tw_lookahead + p->credit_delay +  tw_rand_unif(lp->rng);
	
  if (is_terminal) {
    buf_e = model_net_method_event_new(dest, ts, lp, DRAGONFLY, 
      (void**)&buf_msg, NULL);
    buf_msg->magic = terminal_magic_num;
  } else {
    buf_e = model_net_method_event_new(dest, ts, lp, DRAGONFLY_ROUTER,
            (void**)&buf_msg, NULL);
    buf_msg->magic = router_magic_num;
  }
 
  if(sq == -1) {
    buf_msg->vc_index = msg->vc_index;
    buf_msg->output_chan = msg->output_chan;
  } else {
    buf_msg->vc_index = msg->saved_vc;
    buf_msg->output_chan = msg->saved_channel;
  }
  
  buf_msg->type = type;

  tw_event_send(buf_e);
  return;
}

1074
static void packet_generate_rc(terminal_state * s, tw_bf * bf, terminal_custom_message * msg, tw_lp * lp)
Nikhil's avatar
Nikhil committed
1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089
{
   s->packet_gen--;
   packet_gen--;
   
   tw_rand_reverse_unif(lp->rng);

   int num_chunks = msg->packet_size/s->params->chunk_size;
   if(msg->packet_size % s->params->chunk_size)
       num_chunks++;

   if(!num_chunks)
       num_chunks = 1;

   int i;
   for(i = 0; i < num_chunks; i++) {
1090
        delete_terminal_custom_message_list(return_tail(s->terminal_msgs, 
Nikhil's avatar
Nikhil committed
1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109
          s->terminal_msgs_tail, 0));
        s->terminal_length -= s->params->chunk_size;
   }
    if(bf->c5) {
        codes_local_latency_reverse(lp);
        s->in_send_loop = 0;
    }
      if(bf->c11) {
        s->issueIdle = 0;
        s->last_buf_full = msg->saved_busy_time;
      }
     struct mn_stats* stat;
     stat = model_net_find_stats(msg->category, s->dragonfly_stats_array);
     stat->send_count--;
     stat->send_bytes -= msg->packet_size;
     stat->send_time -= (1/s->params->cn_bandwidth) * msg->packet_size;
}

/* generates packet at the current dragonfly compute node */
1110
static void packet_generate(terminal_state * s, tw_bf * bf, terminal_custom_message * msg, 
Nikhil's avatar
Nikhil committed
1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142
  tw_lp * lp) {
  packet_gen++;
  s->packet_gen++;

  tw_stime ts, nic_ts;

  assert(lp->gid != msg->dest_terminal_id);
  const dragonfly_param *p = s->params;

  int total_event_size;
  uint64_t num_chunks = msg->packet_size / p->chunk_size;
  if (msg->packet_size % s->params->chunk_size) 
      num_chunks++;

  if(!num_chunks)
    num_chunks = 1;

  nic_ts = g_tw_lookahead + (num_chunks * s->params->cn_delay) + tw_rand_unif(lp->rng);
  
  msg->packet_ID = lp->gid + g_tw_nlp * s->packet_counter;
  msg->my_N_hop = 0;
  msg->my_l_hop = 0;
  msg->my_g_hop = 0;

  //if(msg->dest_terminal_id == TRACK)
  if(msg->packet_ID == LLU(TRACK_PKT))
    printf("\n Packet %llu generated at terminal %d dest %llu size %llu num chunks %llu ", 
            msg->packet_ID, s->terminal_id, LLU(msg->dest_terminal_id),
            LLU(msg->packet_size), LLU(num_chunks));

  for(uint64_t i = 0; i < num_chunks; i++)
  {
1143 1144
    terminal_custom_message_list *cur_chunk = (terminal_custom_message_list*)malloc(
      sizeof(terminal_custom_message_list));
Nikhil's avatar
Nikhil committed
1145
    msg->origin_router_id = s->router_id;
1146
    init_terminal_custom_message_list(cur_chunk, msg);
Nikhil's avatar
Nikhil committed
1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165
  

    if(msg->remote_event_size_bytes + msg->local_event_size_bytes > 0) {
      cur_chunk->event_data = (char*)malloc(
          msg->remote_event_size_bytes + msg->local_event_size_bytes);
    }
    
    void * m_data_src = model_net_method_get_edata(DRAGONFLY, msg);
    if (msg->remote_event_size_bytes){
      memcpy(cur_chunk->event_data, m_data_src, msg->remote_event_size_bytes);
    }
    if (msg->local_event_size_bytes){ 
      m_data_src = (char*)m_data_src + msg->remote_event_size_bytes;
      memcpy((char*)cur_chunk->event_data + msg->remote_event_size_bytes, 
          m_data_src, msg->local_event_size_bytes);
    }

    cur_chunk->msg.chunk_id = i;
    cur_chunk->msg.origin_router_id = s->router_id;
1166
    append_to_terminal_custom_message_list(s->terminal_msgs, s->terminal_msgs_tail,
Nikhil's avatar
Nikhil committed
1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182
      0, cur_chunk);
    s->terminal_length += s->params->chunk_size;
  }

  if(s->terminal_length < 2 * s->params->cn_vc_size) {
    model_net_method_idle_event(nic_ts, 0, lp);
  } else {
    bf->c11 = 1;
    s->issueIdle = 1;
    msg->saved_busy_time = s->last_buf_full;
    s->last_buf_full = tw_now(lp);
  }
  
  if(s->in_send_loop == 0) {
    bf->c5 = 1;
    ts = codes_local_latency(lp);
1183
    terminal_custom_message *m;
Nikhil's avatar
Nikhil committed
1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204
    tw_event* e = model_net_method_event_new(lp->gid, ts, lp, DRAGONFLY, 
      (void**)&m, NULL);
    m->type = T_SEND;
    m->magic = terminal_magic_num;
    s->in_send_loop = 1;
    tw_event_send(e);
  }

  total_event_size = model_net_get_msg_sz(DRAGONFLY) + 
      msg->remote_event_size_bytes + msg->local_event_size_bytes;
  mn_stats* stat;
  stat = model_net_find_stats(msg->category, s->dragonfly_stats_array);
  stat->send_count++;
  stat->send_bytes += msg->packet_size;
  stat->send_time += (1/p->cn_bandwidth) * msg->packet_size;
  if(stat->max_event_size < total_event_size)
	  stat->max_event_size = total_event_size;

  return;
}

1205
static void packet_send_rc(terminal_state * s, tw_bf * bf, terminal_custom_message * msg,
Nikhil's avatar
Nikhil committed
1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223
        tw_lp * lp)
{
      if(bf->c1) {
        s->in_send_loop = 1;
        s->last_buf_full = msg->saved_busy_time;
        return;
      }
      
      tw_rand_reverse_unif(lp->rng);
      s->terminal_available_time = msg->saved_available_time;
      if(bf->c2) {
        codes_local_latency_reverse(lp);
      }
     
      s->terminal_length += s->params->chunk_size;
      s->packet_counter--;
      s->vc_occupancy[0] -= s->params->chunk_size;

1224
      terminal_custom_message_list* cur_entry = (terminal_custom_message_list *)rc_stack_pop(s->st);
Nikhil's avatar
Nikhil committed
1225

1226
      prepend_to_terminal_custom_message_list(s->terminal_msgs, 
Nikhil's avatar
Nikhil committed
1227 1228 1229 1230 1231 1232 1233
              s->terminal_msgs_tail, 0, cur_entry);
      if(bf->c3) {
        tw_rand_reverse_unif(lp->rng);
      }
      if(bf->c4) {
        s->in_send_loop = 1;
      }
1234
      if(bf->c5)
Nikhil's avatar
Nikhil committed
1235
      {
1236
          tw_rand_reverse_unif(lp->rng);
Nikhil's avatar
Nikhil committed
1237
          s->issueIdle = 1;
1238 1239 1240 1241 1242 1243
          if(bf->c6)
          {
            s->busy_time = msg->saved_total_time;
            s->last_buf_full = msg->saved_busy_time;
            s->busy_time_sample = msg->saved_sample_time;
          }
1244
      }
Nikhil's avatar
Nikhil committed
1245 1246 1247
      return;
}
/* sends the packet from the current dragonfly compute node to the attached router */
1248
static void packet_send(terminal_state * s, tw_bf * bf, terminal_custom_message * msg, 
Nikhil's avatar
Nikhil committed
1249 1250 1251 1252
  tw_lp * lp) {
  
  tw_stime ts;
  tw_event *e;
1253
  terminal_custom_message *m;
Nikhil's avatar
Nikhil committed
1254 1255
  tw_lpid router_id;

1256
  terminal_custom_message_list* cur_entry = s->terminal_msgs[0];
Nikhil's avatar
Nikhil committed
1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283

  if(s->vc_occupancy[0] + s->params->chunk_size > s->params->cn_vc_size 
      || cur_entry == NULL) {
    bf->c1 = 1;
    s->in_send_loop = 0;

    msg->saved_busy_time = s->last_buf_full;
    s->last_buf_full = tw_now(lp);
    return;
  }

  uint64_t num_chunks = cur_entry->msg.packet_size/s->params->chunk_size;
  if(cur_entry->msg.packet_size % s->params->chunk_size)
    num_chunks++;

  if(!num_chunks)
      num_chunks = 1;
  
  tw_stime delay = s->params->cn_delay;
  if((cur_entry->msg.packet_size % s->params->chunk_size) && (cur_entry->msg.chunk_id == num_chunks - 1))
       delay = bytes_to_ns(cur_entry->msg.packet_size % s->params->chunk_size, s->params->cn_bandwidth); 

  msg->saved_available_time = s->terminal_available_time;
  ts = g_tw_lookahead + delay + tw_rand_unif(lp->rng);
  s->terminal_available_time = maxd(s->terminal_available_time, tw_now(lp));
  s->terminal_available_time += ts;

1284
  ts = s->terminal_available_time - tw_now(lp);
Nikhil's avatar
Nikhil committed
1285 1286 1287 1288 1289 1290 1291
  //TODO: be annotation-aware
  codes_mapping_get_lp_info(lp->gid, lp_group_name, &mapping_grp_id, NULL,
      &mapping_type_id, NULL, &mapping_rep_id, &mapping_offset);
  codes_mapping_get_lp_id(lp_group_name, LP_CONFIG_NM_ROUT, NULL, 1,
      s->router_id, 0, &router_id);
  // we are sending an event to the router, so no method_event here
  void * remote_event;
1292
  e = model_net_method_event_new(router_id, ts, lp,
Nikhil's avatar
Nikhil committed
1293
          DRAGONFLY_ROUTER, (void**)&m, &remote_event);
1294
  memcpy(m, &cur_entry->msg, sizeof(terminal_custom_message));
Nikhil's avatar
Nikhil committed
1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311
  if (m->remote_event_size_bytes){
    memcpy(remote_event, cur_entry->event_data, m->remote_event_size_bytes);
  }

  m->type = R_ARRIVE;
  m->src_terminal_id = lp->gid;
  m->vc_index = 0;
  m->last_hop = TERMINAL;
  m->magic = router_magic_num;
  m->path_type = -1;
  m->local_event_size_bytes = 0;
  tw_event_send(e);


  if(cur_entry->msg.chunk_id == num_chunks - 1 && 
      (cur_entry->msg.local_event_size_bytes > 0)) {
    bf->c2 = 1;
1312 1313
    tw_stime local_ts = codes_local_latency(lp); 
    tw_event *e_new = tw_event_new(cur_entry->msg.sender_lp, local_ts, lp);
Nikhil's avatar
Nikhil committed
1314 1315 1316 1317 1318 1319 1320 1321 1322
    void * m_new = tw_event_data(e_new);
    void *local_event = (char*)cur_entry->event_data + 
      cur_entry->msg.remote_event_size_bytes;
    memcpy(m_new, local_event, cur_entry->msg.local_event_size_bytes);
    tw_event_send(e_new);
  }
  s->packet_counter++;
  s->vc_occupancy[0] += s->params->chunk_size;
  cur_entry = return_head(s->terminal_msgs, s->terminal_msgs_tail, 0); 
1323
  rc_stack_push(lp, cur_entry, delete_terminal_custom_message_list, s->st);
Nikhil's avatar
Nikhil committed
1324 1325 1326 1327 1328 1329 1330 1331
  s->terminal_length -= s->params->chunk_size;

  cur_entry = s->terminal_msgs[0];

  /* if there is another packet inline then schedule another send event */
  if(cur_entry != NULL &&
    s->vc_occupancy[0] + s->params->chunk_size <= s->params->cn_vc_size) {
    bf->c3 = 1;
1332
    terminal_custom_message *m_new;
1333
    ts += tw_rand_unif(lp->rng);
Nikhil's avatar
Nikhil committed
1334 1335 1336 1337 1338 1339 1340 1341 1342 1343
    e = model_net_method_event_new(lp->gid, ts, lp, DRAGONFLY, 
      (void**)&m_new, NULL);
    m_new->type = T_SEND;
    m_new->magic = terminal_magic_num;
    tw_event_send(e);
  } else {
      /* If not then the LP will wait for another credit or packet generation */
    bf->c4 = 1;
    s->in_send_loop = 0;
  }
1344
  if(s->issueIdle) {
Nikhil's avatar
Nikhil committed
1345 1346
    bf->c5 = 1;
    s->issueIdle = 0;
1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360
    ts += tw_rand_unif(lp->rng);
    model_net_method_idle_event(ts, 0, lp);
   
    if(s->last_buf_full > 0.0)
    {
        bf->c6 = 1;
        msg->saved_total_time = s->busy_time;
        msg->saved_busy_time = s->last_buf_full;
        msg->saved_sample_time = s->busy_time_sample;

        s->busy_time += (tw_now(lp) - s->last_buf_full);
        s->busy_time_sample += (tw_now(lp) - s->last_buf_full);
        s->last_buf_full = 0.0;
    }
1361
  }
Nikhil's avatar
Nikhil committed
1362 1363 1364
  return;
}

1365
static void packet_arrive_rc(terminal_state * s, tw_bf * bf, terminal_custom_message * msg, tw_lp * lp)
Nikhil's avatar
Nikhil committed
1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420
{
    if(bf->c31)
    {
      s->packet_fin--;
      packet_fin--;
    }
      tw_rand_reverse_unif(lp->rng);
      if(msg->path_type == MINIMAL)
        minimal_count--;
      if(msg->path_type == NON_MINIMAL)
        nonmin_count--;

      N_finished_chunks--;
      s->finished_chunks--;
      s->fin_chunks_sample--;

      total_hops -= msg->my_N_hop;
       s->total_hops -= msg->my_N_hop;
       s->fin_hops_sample -= msg->my_N_hop;
       dragonfly_total_time  = msg->saved_total_time;
       s->fin_chunks_time = msg->saved_sample_time;
       s->total_time = msg->saved_avg_time;
      
      struct qhash_head * hash_link = NULL;
      struct dfly_qhash_entry * tmp = NULL; 
      
      struct dfly_hash_key key;
      key.message_id = msg->message_id;
      key.sender_id = msg->sender_lp;
      
      hash_link = qhash_search(s->rank_tbl, &key);
      tmp = qhash_entry(hash_link, struct dfly_qhash_entry, hash_link);
      
      mn_stats* stat;
      stat = model_net_find_stats(msg->category, s->dragonfly_stats_array);
      stat->recv_time = msg->saved_rcv_time;

      if(bf->c1)
      {
        stat->recv_count--;
        stat->recv_bytes -= msg->packet_size;
        N_finished_packets--;
        s->finished_packets--;
      }
       if(bf->c3)
          dragonfly_max_latency = msg->saved_available_time;
       
       if(bf->c7)
        {
            //assert(!hash_link);
            tw_rand_reverse_unif(lp->rng);
            N_finished_msgs--;
            s->finished_msgs--;
            total_msg_sz -= msg->total_size;
            s->total_msg_size -= msg->total_size;
1421
            s->data_size_sample -= msg->total_size;
Nikhil's avatar
Nikhil committed
1422

1423
	        struct dfly_qhash_entry * d_entry_pop = (dfly_qhash_entry *)rc_stack_pop(s->st);
Nikhil's avatar
Nikhil committed
1424 1425
            qhash_add(s->rank_tbl, &key, &(d_entry_pop->hash_link));
            s->rank_tbl_pop++; 
1426 1427 1428
            
            if(s->rank_tbl_pop >= DFLY_HASH_TABLE_SIZE)
                tw_error(TW_LOC, "\n Exceeded allocated qhash size, increase hash size in dragonfly model");
Nikhil's avatar
Nikhil committed
1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439

            hash_link = &(d_entry_pop->hash_link);
            tmp = d_entry_pop; 

            if(bf->c4)
                model_net_event_rc2(lp, &msg->event_rc);
        }
      
       assert(tmp);
       tmp->num_chunks--;

1440 1441 1442 1443 1444 1445
       if(bf->c5)
	   {
	        qhash_del(hash_link);
	        free_tmp(tmp);	
            s->rank_tbl_pop--;
	    }
Nikhil's avatar
Nikhil committed
1446 1447
       return;
}
1448
static void send_remote_event(terminal_state * s, terminal_custom_message * msg, tw_lp * lp, tw_bf * bf, char * event_data, int remote_event_size)
Nikhil's avatar
Nikhil committed
1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475
{
        void * tmp_ptr = model_net_method_get_edata(DRAGONFLY, msg);
        //tw_stime ts = g_tw_lookahead + bytes_to_ns(msg->remote_event_size_bytes, (1/s->params->cn_bandwidth));
        tw_stime ts = g_tw_lookahead + tw_rand_unif(lp->rng);
        if (msg->is_pull){
            bf->c4 = 1;
            struct codes_mctx mc_dst =
                codes_mctx_set_global_direct(msg->sender_mn_lp);
            struct codes_mctx mc_src =
                codes_mctx_set_global_direct(lp->gid);
            int net_id = model_net_get_id(LP_METHOD_NM_TERM);

            model_net_set_msg_param(MN_MSG_PARAM_START_TIME, MN_MSG_PARAM_START_TIME_VAL, &(msg->msg_start_time));
            
            msg->event_rc = model_net_event_mctx(net_id, &mc_src, &mc_dst, msg->category,
                    msg->sender_lp, msg->pull_size, ts,
                    remote_event_size, tmp_ptr, 0, NULL, lp);
        }
        else{
            tw_event * e = tw_event_new(msg->final_dest_gid, ts, lp);
            void * m_remote = tw_event_data(e);
            memcpy(m_remote, event_data, remote_event_size);
            tw_event_send(e); 
        }
    return;
}
/* packet arrives at the destination terminal */
1476
static void packet_arrive(terminal_state * s, tw_bf * bf, terminal_custom_message * msg, 
Nikhil's avatar
Nikhil committed
1477 1478 1479 1480 1481
  tw_lp * lp) {

    // NIC aggregation - should this be a separate function?
    // Trigger an event on receiving server

1482 1483 1484
    if(!s->rank_tbl)
        s->rank_tbl = qhash_init(dragonfly_rank_hash_compare, dragonfly_hash_func, DFLY_HASH_TABLE_SIZE);
    
Nikhil's avatar
Nikhil committed
1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515
    struct dfly_hash_key key;
    key.message_id = msg->message_id; 
    key.sender_id = msg->sender_lp;
    
    struct qhash_head *hash_link = NULL;
    struct dfly_qhash_entry * tmp = NULL;
      
    hash_link = qhash_search(s->rank_tbl, &key);
    
    if(hash_link)
        tmp = qhash_entry(hash_link, struct dfly_qhash_entry, hash_link);

    uint64_t total_chunks = msg->total_size / s->params->chunk_size;

    if(msg->total_size % s->params->chunk_size)
          total_chunks++;

    if(!total_chunks)
          total_chunks = 1;

    /*if(tmp)
    {
        if(tmp->num_chunks >= total_chunks || tmp->num_chunks < 0)
        {
           //tw_output(lp, "\n invalid number of chunks %d for LP %ld ", tmp->num_chunks, lp->gid);
           tw_lp_suspend(lp, 0, 0);
           return;
        }
    }*/
    assert(lp->gid == msg->dest_terminal_id);

1516 1517
    if(msg->packet_ID == LLU(TRACK_PKT))
        printf("\n Packet %llu arrived at lp %llu hops %d ", msg->packet_ID, LLU(lp->gid), msg->my_N_hop);
Nikhil's avatar
Nikhil committed
1518 1519 1520 1521 1522
  
  tw_stime ts = g_tw_lookahead + s->params->credit_delay + tw_rand_unif(lp->rng);

  // no method_event here - message going to router
  tw_event * buf_e;
1523
  terminal_custom_message * buf_msg;
Nikhil's avatar
Nikhil committed
1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609
  buf_e = model_net_method_event_new(msg->intm_lp_id, ts, lp,
          DRAGONFLY_ROUTER, (void**)&buf_msg, NULL);
  buf_msg->magic = router_magic_num;
  buf_msg->vc_index = msg->vc_index;
  buf_msg->output_chan = msg->output_chan;
  buf_msg->type = R_BUFFER;
  tw_event_send(buf_e);

  bf->c1 = 0;
  bf->c3 = 0;
  bf->c4 = 0;
  bf->c7 = 0;

  /* Total overall finished chunks in simulation */
  N_finished_chunks++;
  /* Finished chunks on a LP basis */
  s->finished_chunks++;
  /* Finished chunks per sample */
  s->fin_chunks_sample++;

  /* WE do not allow self messages through dragonfly */
  assert(lp->gid != msg->src_terminal_id);

  uint64_t num_chunks = msg->packet_size / s->params->chunk_size;
  if (msg->packet_size % s->params->chunk_size)
    num_chunks++;

  if(!num_chunks)
     num_chunks = 1;

  if(msg->path_type == MINIMAL)
    minimal_count++;

  if(msg->path_type == NON_MINIMAL)
    nonmin_count++;

  if(msg->chunk_id == num_chunks - 1)
  {
    bf->c31 = 1;
    s->packet_fin++;
    packet_fin++;
  }
  if(msg->path_type != MINIMAL && msg->path_type != NON_MINIMAL)
    printf("\n Wrong message path type %d ", msg->path_type);

  /* save the sample time */
    msg->saved_sample_time = s->fin_chunks_time;
    s->fin_chunks_time += (tw_now(lp) - msg->travel_start_time);
    
    /* save the total time per LP */
    msg->saved_avg_time = s->total_time;
    s->total_time += (tw_now(lp) - msg->travel_start_time); 

    msg->saved_total_time = dragonfly_total_time;
    dragonfly_total_time += tw_now( lp ) - msg->travel_start_time;
    total_hops += msg->my_N_hop;
    s->total_hops += msg->my_N_hop;
    s->fin_hops_sample += msg->my_N_hop;

    mn_stats* stat = model_net_find_stats(msg->category, s->dragonfly_stats_array);
    msg->saved_rcv_time = stat->recv_time;
    stat->recv_time += (tw_now(lp) - msg->travel_start_time);

#if DEBUG == 1
 if( msg->packet_ID == TRACK 
          && msg->chunk_id == num_chunks-1
          && msg->message_id == TRACK_MSG)
  {
    printf( "(%lf) [Terminal %d] packet %lld has arrived  \n",
        tw_now(lp), (int)lp->gid, msg->packet_ID);

    printf("travel start time is %f\n",
        msg->travel_start_time);

    printf("My hop now is %d\n",msg->my_N_hop);
  }
#endif

   /* Now retreieve the number of chunks completed from the hash and update
    * them */
   void *m_data_src = model_net_method_get_edata(DRAGONFLY, msg);

   /* If an entry does not exist then create one */
   if(!tmp)
   {
        bf->c5 = 1;
1610
       struct dfly_qhash_entry * d_entry = (dfly_qhash_entry *)malloc(sizeof (struct dfly_qhash_entry));
Nikhil's avatar
Nikhil committed
1611 1612 1613 1614 1615 1616
       d_entry->num_chunks = 0;
       d_entry->key = key;
       d_entry->remote_event_data = NULL;
       d_entry->remote_event_size = 0;
       qhash_add(s->rank_tbl, &key, &(d_entry->hash_link));
       s->rank_tbl_pop++;
1617 1618 1619
            
       if(s->rank_tbl_pop >= DFLY_HASH_TABLE_SIZE)
                tw_error(TW_LOC, "\n Exceeded allocated qhash size, increase hash size in dragonfly model");
Nikhil's avatar
Nikhil committed
1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640
      
       hash_link = &(d_entry->hash_link);
       tmp = d_entry;
   }
    
    assert(tmp);
    tmp->num_chunks++;

    if(msg->chunk_id == num_chunks - 1)
    {
        bf->c1 = 1;
        stat->recv_count++;
        stat->recv_bytes += msg->packet_size;

        N_finished_packets++;
        s->finished_packets++;
    }
    /* if its the last chunk of the packet then handle the remote event data */
    if(msg->remote_event_size_bytes > 0 && !tmp->remote_event_data)
    {
        /* Retreive the remote event entry */
1641
         tmp->remote_event_data = (char*)malloc(msg->remote_event_size_bytes);
Nikhil's avatar
Nikhil committed
1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658
         assert(tmp->remote_event_data);
         tmp->remote_event_size = msg->remote_event_size_bytes; 
         memcpy(tmp->remote_event_data, m_data_src, msg->remote_event_size_bytes);
    }
        if (dragonfly_max_latency < tw_now( lp ) - msg->travel_start_time) {
          bf->c3 = 1;
          msg->saved_available_time = dragonfly_max_latency;
          dragonfly_max_latency = tw_now( lp ) - msg->travel_start_time;
        }
    /* If all chunks of a message have arrived then send a remote event to the
     * callee*/
    //assert(tmp->num_chunks <= total_chunks);

    if(tmp->num_chunks >= total_chunks)
    {
        bf->c7 = 1;

1659
        s->data_size_sample += msg->total_size;
Nikhil's avatar
Nikhil committed
1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674
        N_finished_msgs++;
        total_msg_sz += msg->total_size;
        s->total_msg_size += msg->total_size;
        s->finished_msgs++;
        
        //assert(tmp->remote_event_data && tmp->remote_event_size > 0);
        send_remote_event(s, msg, lp, bf, tmp->remote_event_data, tmp->remote_event_size);
        /* Remove the hash entry */
        qhash_del(hash_link);
        rc_stack_push(lp, tmp, free_tmp, s->st);
        s->rank_tbl_pop--;
   }
  return;
}

1675
void dragonfly_custom_rsample_init(router_state * s,
Nikhil's avatar
Nikhil committed
1676 1677 1678 1679 1680 1681 1682 1683 1684
        tw_lp * lp)
{
   (void)lp;
   int i = 0;
   const dragonfly_param * p = s->params;

   assert(p->radix);

   s->max_arr_size = MAX_STATS;
1685
   s->rsamples = (struct dfly_router_sample*)malloc(MAX_STATS * sizeof(struct dfly_router_sample)); 
Nikhil's avatar
Nikhil committed
1686 1687
   for(; i < s->max_arr_size; i++)
   {
1688 1689
    s->rsamples[i].busy_time = (tw_stime*)malloc(sizeof(tw_stime) * p->radix); 
    s->rsamples[i].link_traffic_sample = (int64_t*)malloc(sizeof(int64_t) * p->radix);
Nikhil's avatar
Nikhil committed
1690 1691
   }
}
1692
void dragonfly_custom_rsample_rc_fn(router_state * s,
Nikhil's avatar
Nikhil committed
1693
        tw_bf * bf,
1694
        terminal_custom_message * msg, 
Nikhil's avatar
Nikhil committed
1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717