dragonfly-custom.C 125 KB
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/*
 * Copyright (C) 2013 University of Chicago.
 * See COPYRIGHT notice in top-level directory.
 *
 */

#include <ross.h>

#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"
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#include "codes/net/dragonfly-custom.h"
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#include "sys/file.h"
#include "codes/quickhash.h"
#include "codes/rc-stack.h"
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#include <vector>
#include <map>
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#include <set>
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#ifdef ENABLE_CORTEX
#include <cortex/cortex.h>
#include <cortex/topology.h>
#endif
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#define DUMP_CONNECTIONS 0
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#define CREDIT_SIZE 8
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#define DFLY_HASH_TABLE_SIZE 100000
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// debugging parameters
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#define DEBUG_LP 892
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#define T_ID 10
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#define TRACK -1
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#define TRACK_PKT 0
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#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])
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static int BIAS_MIN = 1;
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static int DF_DALLY = 0;
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static int adaptive_threshold = 1024;
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static long num_local_packets_sr = 0;
static long num_local_packets_sg = 0;
static long num_remote_packets = 0;
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using namespace std;
struct Link {
  int offset, type;
};
struct bLink {
  int offset, dest;
};
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/* 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)*/
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vector< map< int, vector<Link> > > intraGroupLinks;
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/* contains mapping between source router and destination group via link (link
 * has dest ID)*/
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vector< map< int, vector<bLink> > > interGroupLinks;
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/*MM: Maintains a list of routers connecting the source and destination groups */
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vector< vector< vector<int> > > connectionList;

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

struct InterGroupLink {
  int src, dest;
};

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#ifdef ENABLE_CORTEX
/* This structure is defined at the end of the file */
extern "C" {
extern cortex_topology dragonfly_custom_cortex_topology;
}
#endif
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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;
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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 */
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static int router_magic_num = 0;
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/* terminal magic number */
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static int terminal_magic_num = 0;
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/* Hops within a group */
static int num_intra_nonmin_hops = 4;
static int num_intra_min_hops = 2;

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static FILE * dragonfly_log = NULL;
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static int sample_bytes_written = 0;
static int sample_rtr_bytes_written = 0;
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static char cn_sample_file[MAX_NAME_LENGTH];
static char router_sample_file[MAX_NAME_LENGTH];
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//don't do overhead here - job of MPI layer
static tw_stime mpi_soft_overhead = 0;
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typedef struct terminal_custom_message_list terminal_custom_message_list;
struct terminal_custom_message_list {
    terminal_custom_message msg;
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    char* event_data;
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    terminal_custom_message_list *next;
    terminal_custom_message_list *prev;
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};

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static void init_terminal_custom_message_list(terminal_custom_message_list *thisO, 
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    terminal_custom_message *inmsg) {
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    thisO->msg = *inmsg;
    thisO->event_data = NULL;
    thisO->next = NULL;
    thisO->prev = NULL;
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}

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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);
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}

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;
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    int intra_grp_radix;
    int num_col_chans;
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    int num_row_chans;
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    int num_router_rows;
    int num_router_cols;
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    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;
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   terminal_custom_message_list **terminal_msgs;
   terminal_custom_message_list **terminal_msgs_tail;
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   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;

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   tw_stime * last_buf_full;
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   tw_stime busy_time;
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   tw_stime max_latency;
   tw_stime min_latency;

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   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;
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   /* for logging forward and reverse events */
   long fwd_events;
   long rev_events;
};

/* terminal event type (1-4) */
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typedef enum event_t
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{
  T_GENERATE=1,
  T_ARRIVE,
  T_SEND,
  T_BUFFER,
  R_SEND,
  R_ARRIVE,
  R_BUFFER,
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} event_t;
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/* whether the last hop of a packet was global, local or a terminal */
enum last_hop
{
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   GLOBAL=1,
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   LOCAL,
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   TERMINAL,
   ROOT
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};

/* 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
{
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    MINIMAL = 1,
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    NON_MINIMAL,
    ADAPTIVE,
    PROG_ADAPTIVE
};

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enum LINK_TYPE
{
    GREEN,
    BLACK,
};
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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;
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   tw_stime** last_buf_full;
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   tw_stime* busy_time;
   tw_stime* busy_time_sample;

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   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;
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   int *in_send_loop;
   int *queued_count;
   struct rc_stack * st;
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   int* last_sent_chan;
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   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;
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    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);
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    key = key * 21;
    key = ~key ^ (tmp->sender_id >> 4);
    key = key * tmp->sender_id; 
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    return (int)(key & (table_size - 1));*/
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}

/* 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 */
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int dragonfly_custom_get_msg_sz(void)
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{
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	   return sizeof(terminal_custom_message);
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}

static void free_tmp(void * ptr)
{
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    struct dfly_qhash_entry * dfly = (dfly_qhash_entry *)ptr; 
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    if(dfly->remote_event_data)
        free(dfly->remote_event_data);
   
    if(dfly)
        free(dfly);
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}
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static void append_to_terminal_custom_message_list(  
        terminal_custom_message_list ** thisq,
        terminal_custom_message_list ** thistail,
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        int index, 
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        terminal_custom_message_list *msg) {
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    if(thisq[index] == NULL) {
        thisq[index] = msg;
    } else {
        thistail[index]->next = msg;
        msg->prev = thistail[index];
    } 
    thistail[index] = msg;
}

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static void prepend_to_terminal_custom_message_list(  
        terminal_custom_message_list ** thisq,
        terminal_custom_message_list ** thistail,
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        int index, 
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        terminal_custom_message_list *msg) {
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    if(thisq[index] == NULL) {
        thistail[index] = msg;
    } else {
        thisq[index]->prev = msg;
        msg->next = thisq[index];
    } 
    thisq[index] = msg;
}

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

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static terminal_custom_message_list* return_tail(
        terminal_custom_message_list ** thisq,
        terminal_custom_message_list ** thistail,
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        int index) {
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    terminal_custom_message_list *tail = thistail[index];
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    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){
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    /*Adding init for router magic number*/
    uint32_t h1 = 0, h2 = 0; 
    bj_hashlittle2(LP_METHOD_NM_ROUT, strlen(LP_METHOD_NM_ROUT), &h1, &h2);
    router_magic_num = h1 + h2;
    
    bj_hashlittle2(LP_METHOD_NM_TERM, strlen(LP_METHOD_NM_TERM), &h1, &h2);
    terminal_magic_num = h1 + h2;
    
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    // shorthand
    dragonfly_param *p = params;
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    int myRank;
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    MPI_Comm_rank(MPI_COMM_CODES, &myRank);
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    int rc = configuration_get_value_int(&config, "PARAMS", "local_vc_size", anno, &p->local_vc_size);
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    if(rc) {
        p->local_vc_size = 1024;
        fprintf(stderr, "Buffer size of local channels not specified, setting to %d\n", p->local_vc_size);
    }

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    rc = configuration_get_value_int(&config, "PARAMS", "adaptive_threshold", anno, &adaptive_threshold);
    if(rc) {
    	adaptive_threshold = p->local_vc_size / 8;
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        printf("\n Setting adaptive threshold to %d ", adaptive_threshold);
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	}
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    else
    {
        printf("\n Setting adaptive threshold to %d ", adaptive_threshold);
    }
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    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);
    }

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    rc = configuration_get_value_int(&config, "PARAMS", "df-dally-vc", anno, &DF_DALLY);
    if(rc) {
        DF_DALLY = 0;
    }
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    rc = configuration_get_value_int(&config, "PARAMS", "minimal-bias", anno, &BIAS_MIN);
    if(rc) {
        BIAS_MIN = 0;
    }
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    else
	printf("\n Setting minimal bias");

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    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);
    }

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    rc = configuration_get_value_double(&config, "PARAMS", "router_delay", anno,
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            &p->router_delay);
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    if(rc) {
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      p->router_delay = 100;
    }
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    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)
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	      routing = PROG_ADAPTIVE;
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    else
    {
        fprintf(stderr, 
                "No routing protocol specified, setting to minimal routing\n");
        routing = -1;
    }

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    // rc = configuration_get_value_int(&config, "PARAMS", "num_vcs_override", anno, &p->num_vcs);
    // if(rc) {
    //     if(routing == PROG_ADAPTIVE)
    //         p->num_vcs = 10;
    //     else
    //         p->num_vcs = 8;
    // }
    // else {
    //     printf("Overriding num_vcs: p->num_vcs=%d\n",p->num_vcs);
    // }
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if(DF_DALLY == 0) 
{
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    if(routing == PROG_ADAPTIVE)
        p->num_vcs = 10;
    else
        p->num_vcs = 8;
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}
else
{
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    if(routing == PROG_ADAPTIVE)
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        p->num_vcs = 5;
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    else
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        p->num_vcs = 4;
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}
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    rc = configuration_get_value_int(&config, "PARAMS", "num_groups", anno, &p->num_groups);
    if(rc) {
      printf("Number of groups not specified. Aborting");
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      MPI_Abort(MPI_COMM_CODES, 1);
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    }
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    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;
    }
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    rc = configuration_get_value_int(&config, "PARAMS", "num_row_chans", anno, &p->num_row_chans);
    if(rc) {
//        printf("\n Number of links connecting chassis not specified, setting to default value 3 ");
        p->num_row_chans = 1;
    }
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    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;
    }
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    p->intra_grp_radix = (p->num_router_cols * p->num_row_chans);
    if(p->num_router_rows > 1)
        p->intra_grp_radix += (p->num_router_rows * p->num_col_chans);

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    p->num_routers = p->num_router_rows * p->num_router_cols;
    
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    rc = configuration_get_value_int(&config, "PARAMS", "num_cns_per_router", anno, &p->num_cn);
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    if(rc) {
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        printf("\n Number of cns per router not specified, setting to %d ", p->num_routers/2);
        p->num_cn = p->num_routers/2;
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    }
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    rc = configuration_get_value_int(&config, "PARAMS", "num_global_channels", anno, &p->num_global_channels);
    if(rc) {
673 674
        printf("\n Number of global channels per router not specified, setting to 10 ");
        p->num_global_channels = 10;
675
    }
676
    p->radix = (p->num_router_cols * p->num_row_chans) + (p->num_col_chans * p->num_router_rows) + p->num_global_channels + p->num_cn;
677 678
    p->total_routers = p->num_groups * p->num_routers;
    p->total_terminals = p->total_routers * p->num_cn;
679 680 681 682
    
    // read intra group connections, store from a router's perspective
    // all links to the same router form a vector
    char intraFile[MAX_NAME_LENGTH];
683
    configuration_get_value(&config, "PARAMS", "intra-group-connections", 
684
        anno, intraFile, MAX_NAME_LENGTH);
685 686
    if(strlen(intraFile) <= 0) {
      tw_error(TW_LOC, "Intra group connections file not specified. Aborting");
687 688
    }
    FILE *groupFile = fopen(intraFile, "rb");
689 690 691
    if(!groupFile)
        tw_error(TW_LOC, "intra-group file not found ");

692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713
    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];
714
    configuration_get_value(&config, "PARAMS", "inter-group-connections", 
715
        anno, interFile, MAX_NAME_LENGTH);
716 717
    if(strlen(interFile) <= 0) {
      tw_error(TW_LOC, "Inter group connections file not specified. Aborting");
718 719 720
    }
    FILE *systemFile = fopen(interFile, "rb");
    if(!myRank)
721
    {
722
      printf("Reading inter-group connectivity file: %s\n", interFile);
723 724
      printf("\n Total routers %d total groups %d ", p->total_routers, p->num_groups);
    }
725 726 727 728 729 730 731 732 733

    {
      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);
      }
734
      
735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755
      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);

756
#if DUMP_CONNECTIONS == 1
757 758 759 760 761 762 763 764
    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++) {
765
          // offset is number of local connections
766
          // type is black or green according to Cray architecture 
767 768 769 770 771 772 773
          printf("%d,%d ", it->second[l].offset, it->second[l].type);
        }
        printf(")");
      }
      printf("\n");
    }
#endif
774
#if DUMP_CONNECTIONS == 1
775 776 777
    printf("Dumping inter-group connections\n");
    for(int a = 0; a < interGroupLinks.size(); a++) {
      printf("Connections for router %d\n", a);
778 779
      map< int, vector<bLink> >  &curMap = interGroupLinks[a];
      map< int, vector<bLink> >::iterator it = curMap.begin();
780
      for(; it != curMap.end(); it++) {
781
        // dest group ID 
782 783
        printf(" ( %d - ", it->first);
        for(int l = 0; l < it->second.size(); l++) {
784 785
            // dest is dest router ID
            // offset is number of global connections
786 787 788 789 790 791 792 793
          printf("%d,%d ", it->second[l].offset, it->second[l].dest);
        }
        printf(")");
      }
      printf("\n");
    }
#endif

794
#if DUMP_CONNECTIONS == 1
795 796 797 798 799 800 801 802 803 804 805 806 807
    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) {
808
        printf("\n Total nodes %d routers %d groups %d routers per group %d radix %d\n",
809
                p->num_cn * p->total_routers, p->total_routers, p->num_groups,
810
                p->num_routers, p->radix);
811
    }
812

813 814 815
    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);
816
    p->credit_delay = bytes_to_ns(CREDIT_SIZE, p->local_bandwidth); //assume 8 bytes packet
817 818
}

819
void dragonfly_custom_configure(){
820 821 822
    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);
823
    all_params = (dragonfly_param *)malloc(num_params * sizeof(*all_params));
824 825 826 827 828 829 830 831

    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]);
    }
832 833 834
#ifdef ENABLE_CORTEX
	model_net_topology = dragonfly_custom_cortex_topology;
#endif
835 836 837
}

/* report dragonfly statistics like average and maximum packet latency, average number of hops traversed */
838
void dragonfly_custom_report_stats()
839 840 841 842 843 844
{
   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;
845
   long total_local_packets_sr, total_local_packets_sg, total_remote_packets;
846

847 848 849 850 851 852 853
   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);
854
   
855
   MPI_Reduce( &packet_gen, &total_gen, 1, MPI_LONG, MPI_SUM, 0, MPI_COMM_CODES);
856
   MPI_Reduce(&packet_fin, &total_fin, 1, MPI_LONG, MPI_SUM, 0, MPI_COMM_CODES);
857 858
    MPI_Reduce( &num_local_packets_sr, &total_local_packets_sr, 1, MPI_LONG, MPI_SUM, 0, MPI_COMM_CODES);
    MPI_Reduce( &num_local_packets_sg, &total_local_packets_sg, 1, MPI_LONG, MPI_SUM, 0, MPI_COMM_CODES);
859
   MPI_Reduce( &num_remote_packets, &total_remote_packets, 1, MPI_LONG, MPI_SUM, 0, MPI_COMM_CODES);
860 861
   if(routing == ADAPTIVE || routing == PROG_ADAPTIVE)
    {
862 863
	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);
864 865 866 867 868 869 870 871 872 873 874
    }

   /* 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);
 
875
      printf("\n Total packets generated %ld finished %ld Locally routed- same router %ld different-router %ld Remote (inter-group) %ld \n", total_gen, total_fin, total_local_packets_sr, total_local_packets_sg, total_remote_packets);
876 877 878 879 880 881 882
   }
   return;
}


/* initialize a dragonfly compute node terminal */
void 
883
terminal_custom_init( terminal_state * s, 
884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908
	       tw_lp * lp )
{
    s->packet_gen = 0;
    s->packet_fin = 0;

    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);

909
   s->terminal_id = codes_mapping_get_lp_relative_id(lp->gid, 0, 0);
910
   s->router_id=(int)s->terminal_id / (s->params->num_cn);
911 912
   s->terminal_available_time = 0.0;
   s->packet_counter = 0;
913 914 915
   s->min_latency = INT_MAX;
   s->max_latency = 0;   

916 917 918 919 920 921 922 923 924 925 926 927 928 929
   s->finished_msgs = 0;
   s->finished_chunks = 0;
   s->finished_packets = 0;
   s->total_time = 0.0;
   s->total_msg_size = 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));
930
   s->last_buf_full = (tw_stime*)malloc(s->num_vcs * sizeof(tw_stime));
931 932 933

   for( i = 0; i < s->num_vcs; i++ )
    {
934
      s->last_buf_full[i] = 0.0;
935 936 937 938
      s->vc_occupancy[i]=0;
    }


939
   s->rank_tbl = NULL;
940
   s->terminal_msgs = 
941
       (terminal_custom_message_list**)malloc(s->num_vcs*sizeof(terminal_custom_message_list*));
942
   s->terminal_msgs_tail = 
943
       (terminal_custom_message_list**)malloc(s->num_vcs*sizeof(terminal_custom_message_list*));
944 945 946 947 948 949 950 951 952 953 954
   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 */
955
void router_custom_setup(router_state * r, tw_lp * lp)
956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973
{
    
    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;

974
    num_routers_per_mgrp = codes_mapping_get_lp_count (lp_group_name, 1, "modelnet_dragonfly_custom_router",
975 976 977 978 979 980 981
            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);

982
   r->router_id = codes_mapping_get_lp_relative_id(lp->gid, 0, 0);
983
   r->group_id=r->router_id/p->num_routers;
984 985
    
   //printf("\n Local router id %d global id %d ", r->router_id, lp->gid);
986 987 988 989

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

990

991 992 993 994 995 996 997
   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));
998 999
  
   r->last_sent_chan = (int*) malloc(p->num_router_rows * sizeof(int));
1000 1001 1002
   r->vc_occupancy = (int**)malloc(p->radix * sizeof(int*));
   r->in_send_loop = (int*)malloc(p->radix * sizeof(int));
   r->pending_msgs = 
1003
    (terminal_custom_message_list***)malloc(p->radix * sizeof(terminal_custom_message_list**));
1004
   r->pending_msgs_tail = 
1005
    (terminal_custom_message_list***)malloc(p->radix * sizeof(terminal_custom_message_list**));
1006
   r->queued_msgs = 
1007
    (terminal_custom_message_list***)malloc(p->radix * sizeof(terminal_custom_message_list**));
1008
   r->queued_msgs_tail = 
1009
    (terminal_custom_message_list***)malloc(p->radix * sizeof(terminal_custom_message_list**));
1010
   r->queued_count = (int*)malloc(p->radix * sizeof(int));
1011
   r->last_buf_full = (tw_stime**)malloc(p->radix * sizeof(tw_stime*));
1012 1013 1014 1015
   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);
1016 1017 1018 1019

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

1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033
   for(int i=0; i < p->radix; i++)
    {
       // Set credit & router occupancy
    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));
1034 1035
    r->pending_msgs[i] = (terminal_custom_message_list**)malloc(p->num_vcs * 
        sizeof(terminal_custom_message_list*));
1036
    r->last_buf_full[i] = (tw_stime*)malloc(p->num_vcs * sizeof(tw_stime));
1037 1038 1039 1040 1041 1042
    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*));
1043
        for(int j = 0; j < p->num_vcs; j++) {
1044
            r->last_buf_full[i][j] = 0.0;
1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056
            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 */
1057
static tw_stime dragonfly_custom_packet_event(
1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071
        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;
1072
    terminal_custom_message * msg;
1073 1074 1075 1076 1077 1078
    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,
1079
            sender, DRAGONFLY_CUSTOM, (void**)&msg, (void**)&tmp_ptr);
1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098
    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*/
      {
1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110
        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;
        }
1111 1112 1113 1114 1115 1116 1117
     }
	   //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 */
1118
static void dragonfly_custom_packet_event_rc(tw_lp *sender)
1119 1120 1121 1122 1123 1124
{
	  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*/
1125
static void router_credit_send(router_state * s, terminal_custom_message * msg, 
1126 1127 1128
  tw_lp * lp, int sq) {
  tw_event * buf_e;
  tw_stime ts;
1129
  terminal_custom_message * buf_msg;
1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140

  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;
1141 1142 1143 1144
  } else if(msg->last_hop == GLOBAL 
          || msg->last_hop == LOCAL
          || msg->last_hop == ROOT)
  {
1145 1146 1147 1148 1149 1150 1151
    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) {
1152
    buf_e = model_net_method_event_new(dest, ts, lp, DRAGONFLY_CUSTOM, 
1153 1154 1155
      (void**)&buf_msg, NULL);
    buf_msg->magic = terminal_magic_num;
  } else {
1156
    buf_e = model_net_method_event_new(dest, ts, lp, DRAGONFLY_CUSTOM_ROUTER,
1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174
            (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;
}

1175
static void packet_generate_rc(terminal_state * s, tw_bf * bf, terminal_custom_message * msg, tw_lp * lp)
1176 1177 1178
{
   s->packet_gen--;
   packet_gen--;
1179 1180
   s->packet_counter--;

1181 1182 1183
   tw_rand_reverse_unif(lp->rng);

   int num_chunks = msg->packet_size/s->params->chunk_size;
1184
   if(msg->packet_size < s->params->chunk_size)
1185 1186 1187 1188
       num_chunks++;

   int i;
   for(i = 0; i < num_chunks; i++) {
1189
        delete_terminal_custom_message_list(return_tail(s->terminal_msgs, 
1190 1191 1192 1193 1194 1195 1196 1197 1198
          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;
1199 1200 1201 1202
        if(bf->c8)
        {
            s->last_buf_full[0] = msg->saved_busy_time;
        }
1203 1204 1205 1206 1207 1208 1209 1210 1211
      }
     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 */
1212
static void packet_generate(terminal_state * s, tw_bf * bf, terminal_custom_message * msg, 
1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223
  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;
1224 1225
  double cn_delay = s->params->cn_delay;

1226
  if (msg->packet_size < s->params->chunk_size) 
1227 1228
      num_chunks++;

1229 1230 1231
  if(msg->packet_size < s->params->chunk_size)
      cn_delay = bytes_to_ns(msg->packet_size % s->params->chunk_size, s->params->cn_bandwidth);

1232 1233 1234 1235 1236
  int dest_router_id = codes_mapping_get_lp_relative_id(msg->dest_terminal_id, 0, 0) / s->params->num_cn;
  int dest_grp_id = dest_router_id / s->params->num_routers; 
  int src_grp_id = s->router_id / s->params->num_routers; 

  if(src_grp_id == dest_grp_id)
1237 1238 1239 1240 1241 1242
  {
      if(dest_router_id == s->router_id)
          num_local_packets_sr++;
      else
          num_local_packets_sg++;
  }
1243 1244 1245
  else
      num_remote_packets++;

1246
  nic_ts = g_tw_lookahead + (num_chunks * cn_delay) + tw_rand_unif(lp->rng);
1247
  
1248
  msg->packet_ID = s->packet_counter;
1249
  s->packet_counter++;
1250 1251 1252 1253 1254
  msg->my_N_hop = 0;
  msg->my_l_hop = 0;
  msg->my_g_hop = 0;


1255
  for(int i = 0; i < num_chunks; i++)
1256
  {
1257 1258
    terminal_custom_message_list *cur_chunk = (terminal_custom_message_list*)malloc(
      sizeof(terminal_custom_message_list));
1259
    msg->origin_router_id = s->router_id;
1260
    init_terminal_custom_message_list(cur_chunk, msg);
1261 1262 1263 1264 1265 1266
  
    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);
    }
    
1267
    void * m_data_src = model_net_method_get_edata(DRAGONFLY_CUSTOM, msg);
1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278
    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;
1279
    append_to_terminal_custom_message_list(s->terminal_msgs, s->terminal_msgs_tail,
1280 1281 1282 1283 1284 1285 1286 1287 1288
      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;
1289 1290 1291 1292 1293 1294 1295 1296

      if(s->last_buf_full[0] == 0.0)
      {
        bf->c8 = 1;
        msg->saved_busy_time = s->last_buf_full[0];
        /* TODO: Assumes a single vc from terminal to router */
        s->last_buf_full[0] = tw_now(lp);
      }
1297 1298 1299 1300 1301
  }
  
  if(s->in_send_loop == 0) {
    bf->c5 = 1;
    ts = codes_local_latency(lp);
1302
    terminal_custom_message *m;
1303
    tw_event* e = model_net_method_event_new(lp->gid, ts, lp, DRAGONFLY_CUSTOM, 
1304 1305 1306 1307 1308 1309 1310
      (void**)&m, NULL);
    m->type = T_SEND;
    m->magic = terminal_magic_num;
    s->in_send_loop = 1;
    tw_event_send(e);
  }

1311
  total_event_size = model_net_get_msg_sz(DRAGONFLY_CUSTOM) + 
1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323
      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;
}

1324
static void packet_send_rc(terminal_state * s, tw_bf * bf, terminal_custom_message * msg,
1325 1326
        tw_lp * lp)
{
1327 1328 1329
      if(bf->c10)
         s->last_buf_full[0] = msg->saved_busy_time;
      
1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343
      if(bf->c1) {
        s->in_send_loop = 1;
        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->vc_occupancy[0] -= s->params->chunk_size;

1344
      terminal_custom_message_list* cur_entry = (terminal_custom_message_list *)rc_stack_pop(s->st);
1345

1346
      prepend_to_terminal_custom_message_list(s->terminal_msgs, 
1347 1348 1349 1350 1351 1352 1353
              s->terminal_msgs_tail, 0, cur_entry);
      if(bf->c3) {
        tw_rand_reverse_unif(lp->rng);
      }
      if(bf->c4) {
        s->in_send_loop = 1;
      }
1354
      if(bf->c5)
1355
      {
1356
          tw_rand_reverse_unif(lp->rng);
1357
          s->issueIdle = 1;
1358 1359 1360
          if(bf->c6)
          {
            s->busy_time = msg->saved_total_time;
1361
            s->last_buf_full[0] = msg->saved_busy_time;
1362 1363
            s->busy_time_sample = msg->saved_sample_time;
          }
1364
      }
1365 1366 1367
      return;
}
/* sends the packet from the current dragonfly compute node to the attached router */
1368
static void packet_send(terminal_state * s, tw_bf * bf, terminal_custom_message * msg, 
1369 1370 1371 1372
  tw_lp * lp) {
  
  tw_stime ts;
  tw_event *e;
1373
  terminal_custom_message *m;
1374 1375
  tw_lpid router_id;

1376
  terminal_custom_message_list* cur_entry = s->terminal_msgs[0];
1377

1378 1379 1380 1381 1382 1383 1384 1385 1386 1387
  if(s->vc_occupancy[0] + s->params->chunk_size > s->params->cn_vc_size)
  {
      if(s->last_buf_full[0] == 0.0)
      {
        bf->c10 = 1;
        msg->saved_busy_time = s->last_buf_full[0];
        s->last_buf_full[0] = tw_now(lp);
      }
  }

1388 1389 1390 1391 1392 1393 1394 1395
  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;
    return;
  }

  uint64_t num_chunks = cur_entry->msg.packet_size/s->params->chunk_size;
1396
  if(cur_entry->msg.packet_size < s->params->chunk_size)
1397 1398 1399
    num_chunks++;

  tw_stime delay = s->params->cn_delay;
1400
  if((cur_entry->msg.packet_size < s->params->chunk_size) && (cur_entry->msg.chunk_id == num_chunks - 1))
1401 1402 1403 1404 1405 1406 1407
       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;

1408
  ts = s->terminal_available_time - tw_now(lp);
1409 1410
  codes_mapping_get_lp_info(lp->gid, lp_group_name, &mapping_grp_id, NULL,
      &mapping_type_id, NULL, &mapping_rep_id, &mapping_offset);
1411
  codes_mapping_get_lp_id(lp_group_name, LP_CONFIG_NM_ROUT, NULL, 0,
1412
      s->router_id / num_routers_per_mgrp, s->router_id % num_routers_per_mgrp, &router_id);
1413 1414 1415

//  if(s->router_id == 1)
//   printf("\n Local router id %d global router id %d ", s->router_id, router_id);
1416 1417
  // we are sending an event to the router, so no method_event here
  void * remote_event;
1418
  e = model_net_method_event_new(router_id, ts, lp,
1419
          DRAGONFLY_CUSTOM_ROUTER, (void**)&m, &remote_event);
1420
  memcpy(m, &cur_entry->msg, sizeof(terminal_custom_message));
1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431
  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;
1432
  m->intm_rtr_id = -1;
1433 1434 1435
  tw_event_send(e);


1436 1437 1438 1439 1440
  if(cur_entry->msg.packet_ID == LLU(TRACK_PKT) && lp->gid == T_ID)
    printf("\n Packet %llu generated at terminal %d dest %llu size %llu num chunks %llu router-id %d %d", 
            cur_entry->msg.packet_ID, s->terminal_id, LLU(cur_entry->msg.dest_terminal_id),
            LLU(cur_entry->msg.packet_size), LLU(num_chunks), s->router_id, router_id);

1441 1442 1443
  if(cur_entry->msg.chunk_id == num_chunks - 1 && 
      (cur_entry->msg.local_event_size_bytes > 0)) {
    bf->c2 = 1;
1444 1445
    tw_stime local_ts = codes_local_latency(lp); 
    tw_event *e_new = tw_event_new(cur_entry->msg.sender_lp, local_ts, lp);
1446 1447 1448 1449 1450 1451 1452 1453
    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->vc_occupancy[0] += s->params->chunk_size;
  cur_entry = return_head(s->terminal_msgs, s->terminal_msgs_tail, 0); 
1454
  rc_stack_push(lp, cur_entry, delete_terminal_custom_message_list, s->st);
1455 1456 1457 1458 1459 1460 1461 1462
  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;
1463
    terminal_custom_message *m_new;
1464
    ts += tw_rand_unif(lp->rng);
1465
    e = model_net_method_event_new(lp->gid, ts, lp, DRAGONFLY_CUSTOM, 
1466 1467 1468 1469 1470 1471 1472 1473 1474
      (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;
  }
1475
  if(s->issueIdle) {
1476 1477
    bf->c5 = 1;
    s->issueIdle = 0;
1478 1479 1480
    ts += tw_rand_unif(lp->rng);
    model_net_method_idle_event(ts, 0, lp);
   
1481
    if(s->last_buf_full[0] > 0.0)
1482 1483 1484
    {
        bf->c6 = 1;
        msg->saved_total_time = s->busy_time;
1485
        msg->saved_busy_time = s->last_buf_full[0];
1486 1487
        msg->saved_sample_time = s->busy_time_sample;

1488 1489 1490
        s->busy_time += (tw_now(lp) - s->last_buf_full[0]);
        s->busy_time_sample += (tw_now(lp) - s->last_buf_full[0]);
        s->last_buf_full[0] = 0.0;
1491
    }
1492
  }
1493 1494 1495
  return;
}

1496
static void packet_arrive_rc(terminal_state * s, tw_bf * bf, terminal_custom_message * msg, tw_lp * lp)
1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541
{
    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)
1542
       {
1543
          dragonfly_max_latency = msg->saved_available_time;
1544
       }
1545 1546 1547 1548 1549
      
       if(bf->c22)
	{
          s->max_latency = msg->saved_available_time;
	} 
1550 1551 1552
       if(bf->c7)
        {
            //assert(!hash_link);
1553 1554
            if(bf->c8) 
              tw_rand_reverse_unif(lp->rng);
1555 1556 1557 1558
            N_finished_msgs--;
            s->finished_msgs--;
            total_msg_sz -= msg->total_size;
            s->total_msg_size -= msg->total_size;
1559
            s->data_size_sample -= msg->total_size;
1560

1561
	        struct dfly_qhash_entry * d_entry_pop = (dfly_qhash_entry *)rc_stack_pop(s->st);