fattree.c 96.9 KB
Newer Older
1 2
#include <ross.h>

Noah Wolfe's avatar
Noah Wolfe committed
3
#include "codes/jenkins-hash.h"
4 5 6 7 8 9 10
#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"
#include "codes/net/fattree.h"
#include "sys/file.h"
11
#include "codes/quickhash.h"
Noah Wolfe's avatar
Noah Wolfe committed
12
#include "codes/rc-stack.h"
Nikhil's avatar
Nikhil committed
13 14
#include <ctype.h>
#include <search.h>
15

Matthieu Dorier's avatar
Matthieu Dorier committed
16 17 18 19 20
#ifdef ENABLE_CORTEX
#include <cortex/cortex.h>
#include <cortex/topology.h>
#endif

21 22 23
#define CREDIT_SIZE 8
#define MEAN_PROCESS 1.0

Nikhil's avatar
Nikhil committed
24
#define TERMINAL_GUID_PREFIX ((uint64_t)(64) << 32)
25
#define FTREE_HASH_TABLE_SIZE 4999
26

27
// debugging parameters
28 29
#define TRACK_PKT -1
//#define TRACK_PKT 2820
30
#define FATTREE_HELLO 0
31
#define FATTREE_DEBUG 0
32 33
#define FATTREE_CONNECTIONS 0
#define FATTREE_MSG 0
Nikhil's avatar
Nikhil committed
34
#define DEBUG_RC 0
35

36
//Data Collection Output Files
Nikhil's avatar
Nikhil committed
37
#define PARAMS_LOG 0
38

39 40 41
#define LP_CONFIG_NM (model_net_lp_config_names[FATTREE])
#define LP_METHOD_NM (model_net_method_names[FATTREE])

42 43 44 45 46
#ifdef ENABLE_CORTEX
/* This structure is defined at the end of the file */
extern cortex_topology fattree_cortex_topology;
#endif

47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66
#if DEBUG_RC
  //Reverse Compute Debug Variables
  long long packet_event_f = 0;
  long long packet_event_r = 0;
  long long t_generate_f = 0;
  long long t_generate_r = 0;
  long long t_send_f = 0;
  long long t_send_r = 0;
  long long t_arrive_f = 0;
  long long t_arrive_r = 0;
  long long t_buffer_f = 0;
  long long t_buffer_r = 0;
  long long s_send_f = 0;
  long long s_send_r = 0;
  long long s_arrive_f = 0;
  long long s_arrive_r = 0;
  long long s_buffer_f = 0;
  long long s_buffer_r = 0;
#endif

67
long fattree_packet_gen = 0, fattree_packet_fin = 0;
Nikhil's avatar
Nikhil committed
68
int dump_topo = 0;
69

70 71 72
static double maxd(double a, double b) { return a < b ? b : a; }

// arrival rate
Noah Wolfe's avatar
Noah Wolfe committed
73
//static double MEAN_INTERVAL=200.0;
74 75

typedef struct fattree_param fattree_param;
76
/* annotation-specific parameters (unannotated entry occurs at the
77 78 79
 * last index) */
static uint64_t                  num_params = 0;
static fattree_param           * all_params = NULL;
Noah Wolfe's avatar
Noah Wolfe committed
80
static const config_anno_map_t * anno_map   = NULL;
81 82 83 84 85 86 87

/* global variables for codes mapping */
static char lp_group_name[MAX_NAME_LENGTH];
static char def_group_name[MAX_NAME_LENGTH];
static int def_gname_set = 0;
static int mapping_grp_id, mapping_type_id, mapping_rep_id, mapping_offset;

Nikhil's avatar
Nikhil committed
88 89 90 91 92 93 94 95
enum ROUTING_ALGO
{
    STATIC=0,
    ADAPTIVE,
};
static char routing_folder[MAX_NAME_LENGTH];
static char dot_file_p[MAX_NAME_LENGTH];

96 97 98
/* switch magic number */
int switch_magic_num = 0;

99
/* terminal magic number */
100
int fattree_terminal_magic_num = 0;
101

Nikhil's avatar
Nikhil committed
102 103 104
/* global variables for DOT file generation */
static FILE *dot_file = NULL;

105 106 107 108 109 110 111 112
typedef struct fattree_message_list fattree_message_list;
struct fattree_message_list {
    fattree_message msg;
    char* event_data;
    fattree_message_list *next;
    fattree_message_list *prev;
};

113
void init_fattree_message_list(fattree_message_list *this,
114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130
  fattree_message *inmsg) {
    this->msg = *inmsg;
    this->event_data = NULL;
    this->next = NULL;
    this->prev = NULL;
}

void delete_fattree_message_list(fattree_message_list *this) {
    if(this->event_data != NULL) free(this->event_data);
    free(this);
}

struct fattree_param
{
  int ft_type;
  // configuration parameters
  int num_levels;
131 132 133
  int link_repetitions;
  int Ns; // number of switches per pod
  int Np; //Number of pods
134 135 136
  int *num_switches; //switches at various levels
  int *switch_radix; //radix of switches are various levels
  double link_bandwidth;/* bandwidth of a wire connecting switches */
137
  double cn_bandwidth;/* bandwidth of the compute node channels
138 139 140
                        connected to switch */
  int vc_size; /* buffer size of the link channels */
  int cn_vc_size; /* buffer size of the compute node channels */
141
  int chunk_size; /* full-sized packets are broken into smaller chunks.*/
142
  int packet_size;
143 144 145 146 147 148 149 150
  int num_terminals;
  int l1_set_size;
  int l1_term_size;
  double cn_delay;
  double head_delay;
  double credit_delay;
  double router_delay;
  double soft_delay;
Nikhil's avatar
Nikhil committed
151
  int routing;
152 153
};

154 155 156 157 158 159 160 161 162 163 164 165 166 167 168
struct ftree_hash_key
{
    uint64_t message_id;
    tw_lpid sender_id;
};

struct ftree_qhash_entry
{
   struct ftree_hash_key key;
   char * remote_event_data;
   int num_chunks;
   int remote_event_size;
   struct qhash_head hash_link;
};

169 170 171 172 173 174 175 176 177
/* handles terminal and switch events like packet generate/send/receive/buffer */
typedef enum event_t event_t;
typedef struct ft_terminal_state ft_terminal_state;
typedef struct switch_state switch_state;

/* fattree compute node data structure */
struct ft_terminal_state
{
  unsigned long long packet_counter;
178
  int packet_gen;
179
  int packet_fin;
180 181 182 183 184 185 186 187 188
  // Fattree specific parameters
  unsigned int terminal_id;
  unsigned int switch_id;
  tw_lpid switch_lp;

  // Each terminal will have an input and output channel with the switch
  int vc_occupancy; // NUM_VC
  tw_stime terminal_available_time;
  tw_stime next_credit_available_time;
189

190 191
  struct mn_stats fattree_stats_array[CATEGORY_MAX];

192 193
  fattree_message_list **terminal_msgs;
  fattree_message_list **terminal_msgs_tail;
194
  int terminal_length;
195
  int in_send_loop;
196 197 198
  int issueIdle;

   struct rc_stack * st;
199 200 201

  char * anno;
  fattree_param *params;
202 203 204 205 206 207 208 209 210 211 212

  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;

213
  tw_stime last_buf_full;
214
  tw_stime busy_time;
215
  char output_buf[4096];
216
  char output_buf3[4096];
217

218 219 220 221 222
  /* For sampling */
  long fin_chunks_sample;
  long data_size_sample;
  double fin_hops_sample;
  tw_stime fin_chunks_time;
Nikhil's avatar
Nikhil committed
223 224
  tw_stime busy_time_sample;

225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260
};

/* terminal event type (1-4) */
enum event_t
{
  T_GENERATE=1,
  T_ARRIVE,
  T_SEND,
  T_BUFFER,
  S_SEND,
  S_ARRIVE,
  S_BUFFER,
};

enum last_hop
{
   LINK,
   TERMINAL
};

struct switch_state
{
  unsigned int switch_id;
  int switch_level;
  int radix;
  int num_cons;
  int num_lcons;
  int con_per_lneigh;
  int con_per_uneigh;;
  int start_lneigh;
  int end_lneigh;
  int start_uneigh;
  int unused;

  tw_stime* next_output_available_time;
  tw_stime* next_credit_available_time;
261 262 263 264 265
  tw_stime* last_buf_full;

  tw_stime* busy_time;
  tw_stime* busy_time_sample;

266 267 268 269 270 271 272 273 274 275
  fattree_message_list **pending_msgs;
  fattree_message_list **pending_msgs_tail;
  fattree_message_list **queued_msgs;
  fattree_message_list **queued_msgs_tail;
  int *queued_length;
  int *in_send_loop;
  int* vc_occupancy;
  int64_t* link_traffic;
  tw_lpid *port_connections;

276 277 278
  char output_buf[4096];
  char output_buf2[4096];

Noah Wolfe's avatar
Noah Wolfe committed
279 280
  struct rc_stack * st;

281 282
  char * anno;
  fattree_param *params;
Nikhil's avatar
Nikhil committed
283 284
  /* array to store linear forwaring tables in case we use static routing */
  int *lft;
285 286
};

287 288
static tw_stime         fattree_total_time = 0;
static tw_stime         fattree_max_latency = 0;
Noah Wolfe's avatar
Noah Wolfe committed
289
//static tw_stime         max_collective = 0;
290 291 292 293 294 295 296 297


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;

298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321
static int fattree_rank_hash_compare(
void *key, struct qhash_head *link)
{
    struct ftree_hash_key *message_key = (struct ftree_hash_key *)key;
    struct ftree_qhash_entry *tmp = NULL;

    tmp = qhash_entry(link, struct ftree_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 fattree_hash_func(void *k, int table_size)
{
    struct ftree_hash_key *tmp = (struct ftree_hash_key *)k;
    uint64_t key = (~tmp->message_id) + (tmp->message_id << 18);
    key = key * 21;
    key = ~key ^ (tmp->sender_id >> 4);
    key = key * tmp->sender_id;
    return (int)(key & (table_size - 1));
}

322 323
static void free_tmp(void * ptr)
{
324
    struct ftree_qhash_entry * ftree = ptr;
325 326 327 328
    free(ftree->remote_event_data);
    free(ftree);
}

329
static void append_to_fattree_message_list(
330 331
        fattree_message_list ** thisq,
        fattree_message_list ** thistail,
332
        int index,
333 334 335 336 337 338
        fattree_message_list *msg) {
    if(thisq[index] == NULL) {
        thisq[index] = msg;
    } else {
        thistail[index]->next = msg;
        msg->prev = thistail[index];
339
    }
340 341 342
    thistail[index] = msg;
}

343
static void prepend_to_fattree_message_list(
344 345
        fattree_message_list ** thisq,
        fattree_message_list ** thistail,
346
        int index,
347 348 349 350 351 352
        fattree_message_list *msg) {
    if(thisq[index] == NULL) {
        thistail[index] = msg;
    } else {
        thisq[index]->prev = msg;
        msg->next = thisq[index];
353
    }
354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398
    thisq[index] = msg;
}

static fattree_message_list* return_head(
        fattree_message_list ** thisq,
        fattree_message_list ** thistail,
        int index) {
    fattree_message_list *head = thisq[index];
    if(head != NULL) {
        thisq[index] = head->next;
        if(head->next != NULL) {
            head->next->prev = NULL;
            head->next = NULL;
        } else {
            thistail[index] = NULL;
        }
    }
    return head;
}

static fattree_message_list* return_tail(
        fattree_message_list ** thisq,
        fattree_message_list ** thistail,
        int index) {
    fattree_message_list *tail = thistail[index];
    if(tail->prev != NULL) {
        tail->prev->next = NULL;
        thistail[index] = tail->prev;
        tail->prev = NULL;
    } else {
        thistail[index] = NULL;
        thisq[index] = NULL;
    }
    return tail;
}

//decl
void switch_credit_send(switch_state * s, tw_bf * bf, fattree_message * msg,
    tw_lp * lp, int sq);
int ft_get_output_port( switch_state * s, tw_bf * bf, fattree_message * msg,
    tw_lp * lp, int *out_off );
int get_base_port(switch_state *s, int from_term, int index);


/* returns the fattree switch lp type for lp registration */
Noah Wolfe's avatar
Noah Wolfe committed
399
//static const tw_lptype* fattree_get_switch_lp_type(void);
400

401
/* returns the fattree message size */
402 403 404 405 406
static int fattree_get_msg_sz(void)
{
  return sizeof(fattree_message);
}

Nikhil's avatar
Nikhil committed
407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543
static inline uint64_t get_term_guid(ft_terminal_state *t)
{
  return TERMINAL_GUID_PREFIX + t->terminal_id;
}

static inline uint64_t get_switch_guid(switch_state *s)
{
  return (((uint64_t)(s->switch_level + 1)) << 32) + s->switch_id;
}

typedef struct {
  uint64_t guid;
  uint64_t port;
} guid_port_combi_t;

static int cmp_guids(const void *g1, const void *g2)
{
  uint64_t guid1 = *((uint64_t *) g1);
  uint64_t guid2 = ((guid_port_combi_t *) g2)->guid;
  if (guid1 == guid2)
    return 0;
  else
    return 1;
}

/* parse external file with give forwarding tables
 * file name: 0x<switch guid>.lft
 * content: '0x<terminal guid> <egress port>' per line, e.g.:
 * `head 0x0000000100000000.lf`
 *    0x0000000100000000 0
 *    0x00000040000000ff 22
 *    0x0000000100000001 19
 */
static int read_static_lft(switch_state *s, tw_lp *lp)
{
  if (!s || !lp)
    return -1;

  char dir_name[512];
  char file_name[512];

  char *io_dir = routing_folder;
  sprintf(dir_name, "%s", io_dir);

  sprintf(file_name, "%s/0x%016"PRIx64".lft", dir_name, get_switch_guid(s));
  FILE *file = NULL;
  if (!(file = fopen(file_name, "r")))
    return -1;

  char line[UINT8_MAX];
  char *p = NULL, *e = NULL;
  uint64_t dest_guid = 0, port = 0;

  int num_added = 0;
  guid_port_combi_t *tmpLFT = calloc(s->params->num_terminals,
        sizeof(guid_port_combi_t));
  s->lft = malloc(s->params->num_terminals * sizeof(int));
  /* init all with -1 so that we find missing routing entries */
  for (int i = 0; i < s->params->num_terminals; i++) s->lft[i] = -1;

  while (fgets(line, sizeof(line), file)) {
    p = line;
    while (isspace(*p))
      p++;

    if (*p == '\0' || *p == '\n' || *p == '#')
      continue;

    dest_guid = strtoull(p, &e, 16);
    if (e == p || (!isspace(*e) && *e != '#' && *e != '\0')) {
      errno = EINVAL;
      return -1;
    }

    p = e;
    while (isspace(*p))
      p++;

    port = strtoull(p, &e, 0);
    if (e == p || (!isspace(*e) && *e != '#' && *e != '\0')) {
      errno = EINVAL;
      return -1;
    }

    if (dest_guid < TERMINAL_GUID_PREFIX){
      // we don't need switches
    } else {
      tmpLFT[num_added].guid = dest_guid;
      tmpLFT[num_added].port = port;
      num_added++;
    }
  }

  /* we want a real LFT with terminal_id as lookup index, so have to
   * convert the read lft, which might contain entries for switches
   * or is permutated, into the correct format
   */
  ft_terminal_state tmpTerm;
  for (int dest_num = 0; dest_num < s->params->num_terminals; dest_num++) {
    tmpTerm.terminal_id = dest_num;
    uint64_t key = get_term_guid(&tmpTerm);
    size_t size = s->params->num_terminals;
    guid_port_combi_t *elem = lfind(&key, tmpLFT, &size,
          sizeof(guid_port_combi_t), cmp_guids);
    assert(elem);
    // opensm uses ports=1...n, so convert back here
    //if(NULL != getenv("OSM_ROUTING"))
       s->lft[dest_num] = elem->port - 1;
    //else
    //   s->lft[dest_num] = elem->port;
  }

#if FATTREE_DEBUG
  printf("I am switch %d (guid=%016"PRIx64") and my LFT is:\n",
        s->switch_id, get_switch_guid(s));
  for (int dest_num = 0; dest_num < s->params->num_terminals; dest_num++)
     printf("\tdest %d -> egress port %d\n", dest_num, s->lft[dest_num]);
#endif

  free(tmpLFT);
  fclose(file);
  return 0;
}

static void dot_write_open_file(FILE **fout)
{
  if(!fout || *fout) return;
  if(!dump_topo) return;

  char dir_name[512];
  char file_name[512];

  char *io_dir = routing_folder;
  sprintf(dir_name, "%s", io_dir);

  char *dot_file_prefix = dot_file_p;
  int rank;
544
  MPI_Comm_rank(MPI_COMM_CODES, &rank);
Nikhil's avatar
Nikhil committed
545 546 547 548 549 550 551
  sprintf(file_name, "%s/%s.dot.%d", dir_name, dot_file_prefix, rank);
  *fout = fopen(file_name, "w+");
  if(*fout == NULL) {
    tw_error(TW_LOC, "Error opening dot file for writing");
  }
}

552
/*static void dot_write_close_file(FILE **fout)
Nikhil's avatar
Nikhil committed
553 554 555 556 557
{
  if(!fout || !(*fout)) return;
  if(!dump_topo) return;
  fclose(*fout);
  *fout = NULL;
558
}*/
Nikhil's avatar
Nikhil committed
559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638

/* sw IDs aren't unique, but level+ID info is */
static void dot_write_switch_info(switch_state *s, int sw_gid, FILE *fout)
{
  if(!s || s->unused || !(s->params) || !fout) return;
  if(!dump_topo) return;

  const char *root_attr = ",root_switch", *empty_attr = "";
  uint64_t switch_guid = get_switch_guid(s);
  fattree_param *p = s->params;

  fprintf(fout, "\t\"S_%d_%d\" [comment=\"0x%016"PRIx64",radix=%d%s\"];\n",
      s->switch_level, sw_gid, switch_guid, s->radix,
      (p->num_levels == s->switch_level + 1) ? root_attr : empty_attr);
}

/* terminal IDs are unique in this model */
static void dot_write_term_info(ft_terminal_state *t, FILE *fout)
{
  uint64_t term_guid = t->terminal_id;
  if(!dump_topo) return;

  if(!t || !fout) return;
  /* need to shift the term guid, because opensm doesn't like guid=0...0 */
  //if(NULL != getenv("OSM_ROUTING"))
     term_guid = get_term_guid(t);
  fprintf(fout, "\t\"H_%d\" [comment=\"0x%016"PRIx64"\"];\n",
        t->terminal_id, term_guid);
}

static void dot_write_sw2sw_link(int lsw_lvl, int lsw_id, int lsw_port,
                                 int rsw_lvl, int rsw_id, int rsw_port,
                                 FILE *fout)
{
  int tmp_lsw_port = 0, tmp_rsw_port = 0;

  if(!fout) return;
  if(!dump_topo) return;

  /* add +1 to ports, since ibsim/opensm start with physical port number 1
   * (port 0 is internal sw port)
   */
  //if(NULL != getenv("OSM_ROUTING")) {
     tmp_lsw_port = lsw_port + 1;
     tmp_rsw_port = rsw_port + 1;
  //} else {
  //   tmp_lsw_port = lsw_port;
  //   tmp_rsw_port = rsw_port;
  //}

  /* if original right hand side is unknown we write '?' instead
   * and must fix it later ... nice topology definition ... :-(
   */
  if(-1 == rsw_port)
     fprintf(fout, "\t\"S_%d_%d\" -> \"S_%d_%d\" [comment=\"P%d->P?\"];\n",
           lsw_lvl, lsw_id, rsw_lvl, rsw_id, tmp_lsw_port);
  else
     fprintf(fout, "\t\"S_%d_%d\" -> \"S_%d_%d\" [comment=\"P%d->P%d\"];\n",
           lsw_lvl, lsw_id, rsw_lvl, rsw_id, tmp_lsw_port, tmp_rsw_port);
}

static void dot_write_sw2term_link(int lsw_lvl, int lsw_id, int lsw_port,
                                   int term_id, int dump_reverse, FILE *fout)
{
  if(!fout) return;
  if(!dump_topo) return;

  /* add +1 to ports, since ibsim/opensm start with physical port number 1
   * (port 0 is internal sw port)
   */
  //if(NULL != getenv("OSM_ROUTING"))
     lsw_port++;

  fprintf(fout, "\t\"S_%d_%d\" -> \"H_%d\" [comment=\"P%d->P1\"];\n",
        lsw_lvl, lsw_id, term_id, lsw_port);
  if(dump_reverse)
     fprintf(fout, "\t\"H_%d\" -> \"S_%d_%d\" [comment=\"P1->P%d\"];\n",
           term_id, lsw_lvl, lsw_id, lsw_port);
}

639
/*static void dot_write_term2sw_link(int term_id, int rsw_lvl, int rsw_id,
Nikhil's avatar
Nikhil committed
640 641 642 643 644
                                   int rsw_port, FILE *fout)
{
  if(!fout) return;
  if(!dump_topo) return;

645
  *//* add +1 to ports, since ibsim/opensm start with physical port number 1
Nikhil's avatar
Nikhil committed
646 647 648
   * (port 0 is internal sw port)
   */
  //if(NULL != getenv("OSM_ROUTING"))
649
  //   rsw_port++;
Nikhil's avatar
Nikhil committed
650

651 652 653
  //fprintf(fout, "\t\"H_%d\" -> \"S_%d_%d\" [comment=\"P1->P%d\"];\n",
  //      term_id, rsw_lvl, rsw_id, rsw_port);
//}
Nikhil's avatar
Nikhil committed
654 655 656 657 658 659 660 661 662 663 664 665 666 667

void post_switch_init(switch_state *s, tw_lp *lp)
{
  /* read any LFTs which might have been generated by an external routing
   * algorithm, e.g., through the use of opensm\
   */
  if(s->params->routing == STATIC && !dump_topo) {
   if(0 != read_static_lft(s, lp)) {
     tw_error(TW_LOC, "Error while reading the routing table");
   }
  }
}


Noah Wolfe's avatar
Noah Wolfe committed
668
static void fattree_read_config(const char * anno, fattree_param *p){
669 670
  int i;

Nikhil's avatar
Nikhil committed
671
  p->ft_type = 1;
672
  configuration_get_value_int(&config, "PARAMS", "ft_type", anno,
673 674
      &p->ft_type);

675
  configuration_get_value_int(&config, "PARAMS", "num_levels", anno,
676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727
      &p->num_levels);
  if(p->num_levels <= 0) {
    tw_error(TW_LOC, "Too few num_levels, Aborting\n");
  }
  if(p->num_levels > 3) {
    tw_error(TW_LOC, "Too many num_levels, only upto 3 supported Aborting\n");
  }

  p->num_switches = (int *) malloc (p->num_levels * sizeof(int));
  p->switch_radix = (int*) malloc (p->num_levels * sizeof(int));

  char switch_counts_str[MAX_NAME_LENGTH];
  int rc = configuration_get_value(&config, "PARAMS", "switch_count", anno,
      switch_counts_str, MAX_NAME_LENGTH);
  if (rc == 0){
    tw_error(TW_LOC, "couldn't read PARAMS:switch_count");
  }
  char* token;
  token = strtok(switch_counts_str, ",");
  i = 0;
  while(token != NULL)
  {
    sscanf(token, "%d", &p->num_switches[i]);
    if(p->num_switches[i] <= 0)
    {
      tw_error(TW_LOC, "Invalid switch count  specified "
          "(%d at pos %d), exiting... ", p->num_switches[i], i);
    }
    i++;
    token = strtok(NULL,",");
  }

  char switch_radix_str[MAX_NAME_LENGTH];
  rc = configuration_get_value(&config, "PARAMS", "switch_radix", anno,
      switch_radix_str, MAX_NAME_LENGTH);
  if (rc == 0){
    tw_error(TW_LOC, "couldn't read PARAMS:switch_radix");
  }
  token = strtok(switch_radix_str, ",");
  i = 0;
  while(token != NULL)
  {
    sscanf(token, "%d", &p->switch_radix[i]);
    if(p->switch_radix[i] <= 0)
    {
      tw_error(TW_LOC, "Invalid switch radix  specified "
          "(%d at pos %d), exiting... ", p->switch_radix[i], i);
    }
    i++;
    token = strtok(NULL,",");
  }

728
  p->Ns = p->switch_radix[0]/2;
729
  int num_terminals = p->num_switches[0]*p->switch_radix[0]/2;
730

731 732 733
  if(p->num_levels == 2) {
    p->num_switches[1] = p->num_switches[0]/2;
    p->switch_radix[1] = p->switch_radix[0];
Nikhil's avatar
Nikhil committed
734 735 736
    p->l1_set_size = p->switch_radix[0]/4;
    p->l1_term_size = (p->l1_set_size * p->switch_radix[0]);

737
  } else {
738
	if(p->ft_type == 0){
739
      p->Np = ceil((num_terminals)/(double)(p->Ns*p->Ns));
740 741 742 743
      p->num_switches[1] = p->num_switches[0];
      p->num_switches[2] = ceil((p->Ns*p->Ns) / floor(p->switch_radix[0]/p->Np));
      p->switch_radix[1] = p->switch_radix[2] = p->switch_radix[0];
      p->link_repetitions = floor(p->switch_radix[2] / p->Np);
744
      printf("Np:%d Ns:%d\n",p->Np,p->Ns);
745 746
	}else{
	  p->num_switches[1] = p->num_switches[0];
747 748
      p->num_switches[2] = p->num_switches[0]/2;
      p->switch_radix[1] = p->switch_radix[2] = p->switch_radix[0];
749 750
	}
	p->l1_set_size = p->switch_radix[0]/2;
Nikhil's avatar
Nikhil committed
751
    p->l1_term_size = (p->l1_set_size * (p->switch_radix[0] / 2));
752 753
  }

754
#if FATTREE_CONNECTIONS
755 756 757 758 759 760 761
  for(int jj=0;jj<3;jj++)
  {
    printf("num_switches[%d]=%d\n",jj,p->num_switches[jj]);
    printf("switch_radix[%d]=%d\n",jj,p->switch_radix[jj]);
  }
#endif

762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780
  i = 1;
  for(i = 1; i < p->num_levels - 1; i++) {
    if(p->num_switches[i - 1] * p->switch_radix[i - 1] >
       p->num_switches[i] * p->switch_radix[i]) {
      tw_error(TW_LOC, "Not enough switches/radix at level %d for full "
          "bisection bandwidth\n", i);
    }
  }

  if(p->num_switches[i - 1] * p->switch_radix[i - 1] > 2 * p->num_switches[i] *
      p->switch_radix[i]) {
    tw_error(TW_LOC, "Not enough switches/radix at level %d (top) for full "
        "bisection bandwidth\n", i);
  }

  configuration_get_value_int(&config, "PARAMS", "packet_size", anno,
      &p->packet_size);
  if(!p->packet_size) {
    p->packet_size = 512;
781
    fprintf(stderr, "Packet size is not specified, setting to %d\n",
782 783
        p->packet_size);
  }
784

785 786 787
  p->router_delay = 50;
  configuration_get_value_double(&config, "PARAMS", "router_delay", anno,
      &p->router_delay);
788

789 790 791 792 793 794 795 796 797 798 799
  p->soft_delay = 1000;
  configuration_get_value_double(&config, "PARAMS", "soft_delay", anno,
      &p->soft_delay);

  configuration_get_value_int(&config, "PARAMS", "vc_size", anno, &p->vc_size);
  if(!p->vc_size) {
    p->vc_size = 8*p->packet_size;
    fprintf(stderr, "Buffer size of global channels not specified, setting to "
        "%d\n", p->vc_size);
  }

800
  configuration_get_value_int(&config, "PARAMS", "cn_vc_size", anno,
801 802 803
      &p->cn_vc_size);
  if(!p->cn_vc_size) {
    p->cn_vc_size = 8*p->packet_size;
804
    fprintf(stderr, "Buffer size of compute node channels not specified, "
805 806 807
        "setting to %d\n", p->cn_vc_size);
  }

808 809 810 811 812 813
  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);
    }

Nikhil's avatar
Nikhil committed
814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829
  char routing_str[MAX_NAME_LENGTH];
  configuration_get_value(&config, "PARAMS", "routing", anno, routing_str,
      MAX_NAME_LENGTH);
  if(strcmp(routing_str, "static") == 0)
    p->routing = STATIC;
  else if(strcmp(routing_str, "adaptive")==0)
    p->routing = ADAPTIVE;
  else
  {
    fprintf(stderr, 
        "No routing protocol specified, setting to adaptive routing\n");
    p->routing = ADAPTIVE;
  }
  
  configuration_get_value_int(&config, "PARAMS", "dump_topo", anno,
      &dump_topo);
830

Nikhil's avatar
Nikhil committed
831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850
  routing_folder[0] = '\0';
  rc = configuration_get_value(&config, "PARAMS", "routing_folder", anno, routing_folder,
      MAX_NAME_LENGTH);

  if(routing_folder[0] == '\0') {
    if(dump_topo || p->routing == STATIC) {
      tw_error(TW_LOC, "routing_folder has to be provided with dump_topo || static routing");
    }
  }
 
  dot_file_p[0] = '\0'; 
  rc = configuration_get_value(&config, "PARAMS", "dot_file", anno, dot_file_p,
      MAX_NAME_LENGTH);
  
  if(dot_file_p[0] == '\0') {
    if(dump_topo) {
      tw_error(TW_LOC, "dot_file has to be provided with dump_topo");
    }
  }
  
851
  configuration_get_value_double(&config, "PARAMS", "link_bandwidth", anno,
852 853 854
      &p->link_bandwidth);
  if(!p->link_bandwidth) {
    p->link_bandwidth = 5;
855
    fprintf(stderr, "Bandwidth of links is specified, setting to %lf\n",
856 857 858
        p->link_bandwidth);
  }

859
  configuration_get_value_double(&config, "PARAMS", "cn_bandwidth", anno,
860 861 862
      &p->cn_bandwidth);
  if(!p->cn_bandwidth) {
    p->cn_bandwidth = 5;
863
    fprintf(stderr, "Bandwidth of compute node channels not specified, "
864 865 866
        "setting to %lf\n", p->cn_bandwidth);
  }

867 868 869 870
#if FATTREE_DEBUG
  printf("l1_set_size:%d l1_term_size:%d\n",p->l1_set_size,p->l1_term_size);
#endif

871 872 873 874 875 876 877 878 879 880 881
  p->cn_delay = (1.0 / p->cn_bandwidth);
  p->head_delay = (1.0 / p->link_bandwidth);
  p->credit_delay = (1.0 / p->link_bandwidth) * 8; //assume 8 bytes packet
}

static void fattree_configure(){
  anno_map = codes_mapping_get_lp_anno_map(LP_CONFIG_NM);
  assert(anno_map);
  num_params = anno_map->num_annos + (anno_map->has_unanno_lp > 0);
  all_params = malloc(num_params * sizeof(*all_params));

Noah Wolfe's avatar
Noah Wolfe committed
882 883
  for (int i = 0; i < anno_map->num_annos; i++){
    const char * anno = anno_map->annotations[i].ptr;
884 885 886 887 888
    fattree_read_config(anno, &all_params[i]);
  }
  if (anno_map->has_unanno_lp > 0){
    fattree_read_config(NULL, &all_params[anno_map->num_annos]);
  }
889 890 891
#ifdef ENABLE_CORTEX
  model_net_topology = fattree_cortex_topology;
#endif
892 893 894 895 896
}

/* initialize a fattree compute node terminal */
void ft_terminal_init( ft_terminal_state * s, tw_lp * lp )
{
897
    s->packet_gen = 0;
898 899
    s->packet_fin = 0;

900
    uint32_t h1 = 0, h2 = 0;
901 902
    bj_hashlittle2(LP_METHOD_NM, strlen(LP_METHOD_NM), &h1, &h2);
    fattree_terminal_magic_num = h1 + h2;
903

904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931
    char anno[MAX_NAME_LENGTH];

    if(def_gname_set == 0) {
      def_gname_set = 1;
      codes_mapping_get_lp_info(0, def_group_name, &mapping_grp_id, NULL,
          &mapping_type_id, anno, &mapping_rep_id, &mapping_offset);
    }

    // Assign the global switch ID
    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,
           s->anno, 0);

   if(num_lps != (s->params->switch_radix[0]/2)) {
     tw_error(TW_LOC, "Number of NICs per repetition has to be equal to "
         "half the radix of leaf level switches %d vs %d\n", num_lps,
          s->params->switch_radix[0]/2);
   }
932
   s->terminal_id = (mapping_rep_id * num_lps) + mapping_offset;
933 934 935 936 937
   s->switch_id = s->terminal_id / (s->params->switch_radix[0] / 2);
   codes_mapping_get_lp_id(lp_group_name, "fattree_switch", NULL, 1,
           s->switch_id, 0, &s->switch_lp);
   s->terminal_available_time = 0.0;
   s->packet_counter = 0;
938
   s->terminal_msgs =
939
     (fattree_message_list**)malloc(1*sizeof(fattree_message_list*));
940
   s->terminal_msgs_tail =
941 942
     (fattree_message_list**)malloc(1*sizeof(fattree_message_list*));

943 944 945 946 947 948
   s->finished_msgs = 0;
   s->finished_chunks = 0;
   s->finished_packets = 0;
   s->total_time = 0.0;
   s->total_msg_size = 0;

949 950 951
   s->last_buf_full = 0;
   s->busy_time = 0;

952
#if FATTREE_HELLO
953 954
   printf("I am terminal %d (%llu), connected to switch %d\n", s->terminal_id,
       LLU(lp->gid), s->switch_id);
955
#endif
Noah Wolfe's avatar
Noah Wolfe committed
956 957 958

   rc_stack_create(&s->st);

959 960 961 962 963 964 965
   s->vc_occupancy = 0;
   s->terminal_msgs[0] = NULL;
   s->terminal_msgs_tail[0] = NULL;
   s->terminal_length = 0;
   s->in_send_loop = 0;
   s->issueIdle = 0;

966 967 968
   s->rank_tbl = NULL;
   //if(!s->rank_tbl)
   //  tw_error(TW_LOC, "\n Hash table not initialized! ");
969

970
   s->params->num_terminals = codes_mapping_get_lp_count(lp_group_name, 0,
971
      LP_CONFIG_NM, s->anno, 0);
Nikhil's avatar
Nikhil committed
972 973 974 975 976 977 978 979 980 981 982 983
   /* dump partial topology into DOT format
    * skip term2sw link part, because we are missing the remote switch port
    * in this stage of the code
    */
   if(!dot_file)
     dot_write_open_file(&dot_file);
   dot_write_term_info(s, dot_file);

   /* ensure the DOT file is out before reading it with external tools */
   if(dot_file)
     fflush(dot_file);

984 985 986 987 988 989
   return;
}

/* sets up the switch */
void switch_init(switch_state * r, tw_lp * lp)
{
990 991 992 993
  uint32_t h1 = 0, h2 = 0;
  bj_hashlittle2(LP_METHOD_NM, strlen(LP_METHOD_NM), &h1, &h2);
  switch_magic_num = h1 + h2;

994
  char anno[MAX_NAME_LENGTH];
Noah Wolfe's avatar
Noah Wolfe committed
995
  int num_terminals = -1;
996 997 998 999 1000

  if(def_gname_set == 0) {
    def_gname_set = 1;
    codes_mapping_get_lp_info(0, def_group_name, &mapping_grp_id, NULL,
        &mapping_type_id, anno, &mapping_rep_id, &mapping_offset);
1001
    num_terminals = codes_mapping_get_lp_count(def_group_name, 0,
1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037
      LP_CONFIG_NM, anno, 0);
  }

  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
  fattree_param *p = r->params;
  if(mapping_offset == p->num_levels - 1) {
    if(mapping_rep_id >= p->num_switches[mapping_offset]) {
      r->unused = 1;
      return;
    }
  }

  r->unused = 0;

  r->switch_id = mapping_rep_id + mapping_offset * p->num_switches[0];

  if(num_terminals != -1) {
    p->num_terminals = num_terminals;
  }

  r->switch_level = mapping_offset;

  r->radix = p->switch_radix[r->switch_level];

1038
  r->next_output_available_time = (tw_stime*) malloc (r->radix *
1039
      sizeof(tw_stime));
1040
  r->next_credit_available_time = (tw_stime*) malloc (r->radix *
1041 1042 1043 1044 1045
      sizeof(tw_stime));
  r->vc_occupancy = (int*) malloc (r->radix * sizeof(int));
  r->in_send_loop = (int*) malloc (r->radix * sizeof(int));
  r->link_traffic = (int64_t*) malloc (r->radix * sizeof(int64_t));
  r->port_connections = (tw_lpid*) malloc (r->radix * sizeof(tw_lpid));
1046
  r->pending_msgs =
1047
    (fattree_message_list**)malloc(r->radix * sizeof(fattree_message_list*));
1048
  r->pending_msgs_tail =
1049
    (fattree_message_list**)malloc(r->radix * sizeof(fattree_message_list*));
1050
  r->queued_msgs =
1051
    (fattree_message_list**)malloc(r->radix * sizeof(fattree_message_list*));
1052
  r->queued_msgs_tail =
1053 1054
    (fattree_message_list**)malloc(r->radix * sizeof(fattree_message_list*));
  r->queued_length = (int*)malloc(r->radix * sizeof(int));
Nikhil's avatar
Nikhil committed
1055
  r->lft = NULL;
1056

1057 1058 1059 1060
  r->last_buf_full = (tw_stime*)malloc(r->radix * sizeof(tw_stime));
  r->busy_time = (tw_stime*)malloc(r->radix * sizeof(tw_stime));
  r->busy_time_sample = (tw_stime*)malloc(r->radix * sizeof(tw_stime));

Noah Wolfe's avatar
Noah Wolfe committed
1061 1062
  rc_stack_create(&r->st);

1063 1064 1065
  for(int i = 0; i < r->radix; i++)
  {
    // Set credit & switch occupancy
1066 1067 1068
    r->last_buf_full[i] = 0.0;
    r->busy_time[i] = 0.0;
    r->busy_time_sample[i] = 0.0;
1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080
    r->next_output_available_time[i] = 0;
    r->next_credit_available_time[i] = 0;
    r->vc_occupancy[i] = 0;
    r->in_send_loop[i] = 0;
    r->link_traffic[i] = 0;
    r->pending_msgs[i] = NULL;
    r->pending_msgs_tail[i] = NULL;
    r->queued_msgs[i] = NULL;
    r->queued_msgs_tail[i] = NULL;
    r->queued_length[i] = 0;
  }

Nikhil's avatar
Nikhil committed
1081 1082 1083 1084 1085
  /* dump partial topology info into DOT format (switch radix, guid, ...) */
  if(!dot_file)
    dot_write_open_file(&dot_file);
  dot_write_switch_info(r, lp->gid, dot_file);

1086 1087
#if FATTREE_CONNECTIONS || FATTREE_DEBUG
    tw_lpid next_switch_lid;
1088 1089
	int written = 0;
    int written_2 = 0;
1090
#endif
1091

1092 1093 1094 1095
  //set lps connected to each port
  r->num_cons = 0;
  r->num_lcons = 0;
#if FATTREE_HELLO
1096 1097
  printf("I am switch %d (%llu), level %d, radix %d\n", r->switch_id,
    LLU(lp->gid), r->switch_level, r->radix);
1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109
#endif
  //if at level 0, first half ports go to terminals
  if(r->switch_level == 0) {
    int start_terminal = r->switch_id * (p->switch_radix[0] / 2);
    int end_terminal = start_terminal + (p->switch_radix[0] / 2);
    for(int term = start_terminal; term < end_terminal; term++) {
      tw_lpid nextTerm;
      int rep = term / (p->switch_radix[0] / 2);
      int off = term % (p->switch_radix[0] / 2);
      codes_mapping_get_lp_id(def_group_name, LP_CONFIG_NM, NULL, 1,
          rep, off, &nextTerm);
      r->port_connections[r->num_cons++] = nextTerm;
1110 1111 1112
#if FATTREE_CONNECTIONS
	  written += sprintf(r->output_buf + written, "%u, %llu, ", r->switch_id+p->num_terminals,LLU(codes_mapping_get_lp_relative_id(nextTerm,0,0)));
#endif
1113 1114
      r->num_lcons++;
#if FATTREE_DEBUG
1115
      printf("L0->term I am switch %d, connect to terminal %d (%llu) at port %d yes collecting\n",
1116
          r->switch_id, term, LLU(nextTerm), r->num_cons - 1);
1117
#endif
Nikhil's avatar
Nikhil committed
1118 1119
      /* write sw2term links and (reverse link, too) into DOT file */
      dot_write_sw2term_link(r->switch_level, lp->gid, r->num_cons - 1, term, 1, dot_file);
1120 1121 1122 1123 1124 1125 1126 1127
    }
    r->start_lneigh = start_terminal;
    r->end_lneigh = end_terminal;
    r->con_per_lneigh = 1;
    assert(r->num_lcons == (r->radix / 2));
    int l1_set;
    if(p->num_levels == 2) {
      l1_set = 0;
Nikhil's avatar
Nikhil committed
1128
      r->con_per_uneigh = 2;
1129 1130
    } else {
      l1_set = r->switch_id / p->l1_set_size;
Nikhil's avatar
Nikhil committed
1131
      r->con_per_uneigh = 1;
1132 1133 1134 1135 1136 1137 1138 1139 1140
    }
    int l1_base = l1_set * p->l1_set_size;
    r->start_uneigh = p->num_switches[0] + l1_base;
    for(int l1 = 0; l1 < p->l1_set_size; l1++) {
      tw_lpid nextTerm;
      codes_mapping_get_lp_id(lp_group_name, "fattree_switch", NULL, 1,
          l1_base, 1, &nextTerm);
      for(int con = 0; con < r->con_per_uneigh; con++) {
        r->port_connections[r->num_cons++] = nextTerm;
1141
#if FATTREE_CONNECTIONS || FATTREE_DEBUG
1142 1143 1144
        codes_mapping_get_lp_info(nextTerm, lp_group_name, &mapping_grp_id, NULL,
            &mapping_type_id, anno, &mapping_rep_id, &mapping_offset);
        next_switch_lid = mapping_rep_id + mapping_offset * p->num_switches[0];
1145 1146
	    written += sprintf(r->output_buf + written, "%u, %llu, ", r->switch_id+p->num_terminals,LLU(next_switch_lid)+p->num_terminals);
#endif
1147
#if FATTREE_DEBUG
1148
    printf("L0->L1 I am switch %d, connect to upper switch %d L1 (%llu) rel_id:%llu at port %d yes collecting\n",
1149
          r->switch_id, l1_base, LLU(nextTerm), LLU(next_switch_lid), r->num_cons - 1);
1150
#endif
Nikhil's avatar
Nikhil committed
1151 1152 1153
        /* write all inter switch links to DOT file (initialized before) */
        dot_write_sw2sw_link(r->switch_level, lp->gid, r->num_cons - 1,
              r->switch_level + 1, nextTerm, -1, dot_file);
1154 1155 1156 1157 1158 1159 1160 1161 1162 1163
      }
      l1_base++;
    }
  } else if (r->switch_level == 1) {
    int l0_set_size, l0_base;
    if(p->num_levels == 2) {
      l0_set_size = p->num_switches[0];
      l0_base = 0;
      r->start_lneigh = 0;
      r->end_lneigh = p->num_switches[0];
Nikhil's avatar
Nikhil committed
1164
      r->con_per_lneigh = 2;
1165 1166 1167 1168 1169 1170
    } else {
      l0_set_size = p->l1_set_size;
      l0_base = ((r->switch_id - p->num_switches[0]) / p->l1_set_size) *
        l0_set_size;
      r->start_lneigh = l0_base;
      r->end_lneigh = l0_base + l0_set_size;
Nikhil's avatar
Nikhil committed
1171
      r->con_per_lneigh = 1;
1172 1173 1174 1175 1176 1177 1178
    }
    for(int l0 = 0; l0 < l0_set_size; l0++) {
      tw_lpid nextTerm;
      codes_mapping_get_lp_id(def_group_name, "fattree_switch", NULL, 1,
          l0_base, 0, &nextTerm);
      for(int con = 0; con < r->con_per_lneigh; con++) {
        r->port_connections[r->num_cons++] = nextTerm;
1179
#if FATTREE_CONNECTIONS || FATTREE_DEBUG
1180 1181 1182
        codes_mapping_get_lp_info(nextTerm, lp_group_name, &mapping_grp_id, NULL,
            &mapping_type_id, anno, &mapping_rep_id, &mapping_offset);
        next_switch_lid = mapping_rep_id + mapping_offset * p->num_switches[0];
1183 1184
        written_2 += sprintf(r->output_buf2 + written_2, "%u, %llu, ", r->switch_id+p->num_terminals,LLU(next_switch_lid)+p->num_terminals);
#endif
1185 1186
        r->num_lcons++;
#if FATTREE_DEBUG
1187 1188
        printf("L1->L0 I am switch %d, connect to switch %d L0 (%llu) rel_id:%llu at port %d not collecting\n",
            r->switch_id, l0_base, LLU(nextTerm), LLU(next_switch_lid), r->num_cons - 1);
1189
#endif
Nikhil's avatar
Nikhil committed
1190 1191 1192
        /* write all inter switch links to DOT file (initialized before) */
        dot_write_sw2sw_link(r->switch_level, lp->gid, r->num_cons - 1,
              r->switch_level - 1, nextTerm, -1, dot_file);
1193 1194 1195 1196
      }
      l0_base++;
    }
    if(p->num_levels == 3) {
1197
      if(p->ft_type == 0) {
1198 1199
        /*for(int rep=0;rep<p->link_repetitions;rep++)*/{
            int rep = 0;