model-net.c 21.5 KB
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/*
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 * Copyright (C) 2013 University of Chicago.
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 * See COPYRIGHT notice in top-level directory.
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 *
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 */
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#include <string.h>
#include <assert.h>

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#include "codes/model-net.h"
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#include "codes/model-net-method.h"
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#include "codes/model-net-lp.h"
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#include "codes/model-net-sched.h"
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#include "codes/codes.h"
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#include <codes/codes_mapping.h>
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#define STR_SIZE 16
#define PROC_TIME 10.0

extern struct model_net_method simplenet_method;
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extern struct model_net_method simplep2p_method;
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extern struct model_net_method torus_method;
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extern struct model_net_method dragonfly_method;
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extern struct model_net_method dragonfly_custom_method;
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extern struct model_net_method dragonfly_plus_method;
extern struct model_net_method dragonfly_plus_router_method;
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extern struct model_net_method slimfly_method;
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extern struct model_net_method fattree_method;
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extern struct model_net_method dragonfly_router_method;
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extern struct model_net_method dragonfly_custom_router_method;
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extern struct model_net_method loggp_method;
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extern struct model_net_method express_mesh_method;
extern struct model_net_method express_mesh_router_method;
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extern struct model_net_method express_mesh_method;
extern struct model_net_method express_mesh_router_method;
extern struct model_net_method network_graph_method;
extern struct model_net_method network_graph_router_method;
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#define X(a,b,c,d) b,
char * model_net_lp_config_names[] = {
    NETWORK_DEF
};
#undef X

#define X(a,b,c,d) c,
char * model_net_method_names[] = {
    NETWORK_DEF
};
#undef X

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/* Global array initialization, terminated with a NULL entry */
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#define X(a,b,c,d) d,
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struct model_net_method* method_array[] = {
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    NETWORK_DEF
};
#undef X
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// counter and offset for the MN_START_SEQ / MN_END_SEQ macros
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int mn_in_sequence = 0;
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tw_stime mn_msg_offset = 0.0;

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// message parameters for use via model_net_set_msg_param
static int is_msg_params_set[MAX_MN_MSG_PARAM_TYPES];
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static mn_sched_params sched_params; // MN_MSG_PARAM_SCHED
static tw_stime start_time_param; // MN_MSG_PARAM_START_TIME
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static double cn_bandwidth = 20;
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tw_stime codes_cn_delay;
static int codes_node_eager_limit = 16000;
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// global listing of lp types found by model_net_register
// - needs to be held between the register and configure calls
static int do_config_nets[MAX_NETS];

void model_net_register(){
    // first set up which networks need to be registered, then pass off to base
    // LP to do its thing
    memset(do_config_nets, 0, MAX_NETS * sizeof(*do_config_nets));
    for (int grp = 0; grp < lpconf.lpgroups_count; grp++){
        config_lpgroup_t *lpgroup = &lpconf.lpgroups[grp];
        for (int lpt = 0; lpt < lpgroup->lptypes_count; lpt++){
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            char const *nm = lpgroup->lptypes[lpt].name.ptr;
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            for (int n = 0; n < MAX_NETS; n++){
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                if (!do_config_nets[n] &&
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                        strcmp(model_net_lp_config_names[n], nm) == 0){
                    do_config_nets[n] = 1;
                    break;
                }
            }
        }
    }
    model_net_base_register(do_config_nets);
}

int* model_net_configure(int *id_count){
    // first call the base LP configure, which sets up the general parameters
    model_net_base_configure();

    // do network-specific configures
    *id_count = 0;
    for (int i = 0; i < MAX_NETS; i++) {
        if (do_config_nets[i]){
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            // some don't need configuration (dragonfly router is covered by
            // dragonfly)
            if (method_array[i]->mn_configure != NULL)
                method_array[i]->mn_configure();
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            (*id_count)++;
        }
    }

    // allocate the output
    int *ids = malloc(*id_count * sizeof(int));
    // read the ordering provided by modelnet_order
    char **values;
    size_t length;
    int ret = configuration_get_multivalue(&config, "PARAMS", "modelnet_order",
            NULL, &values, &length);
    if (ret != 1){
        tw_error(TW_LOC, "unable to read PARAMS:modelnet_order variable\n");
    }
    if (length != (size_t) *id_count){
        tw_error(TW_LOC, "number of networks in PARAMS:modelnet_order "
                "do not match number in LPGROUPS\n");
    }
    // set the index
    for (int i = 0; i < *id_count; i++){
        ids[i] = -1;
        for (int n = 0; n < MAX_NETS; n++){
            if (strcmp(values[i], model_net_method_names[n]) == 0){
                if (!do_config_nets[n]){
                    tw_error(TW_LOC, "network in PARAMS:modelnet_order not "
                            "present in LPGROUPS: %s\n", values[i]);
                }
                ids[i] = n;
                break;
            }
        }
        if (ids[i] == -1){
            tw_error(TW_LOC, "unknown network in PARAMS:modelnet_order: %s\n",
                    values[i]);
        }
        free(values[i]);
    }
    free(values);

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    // init the per-msg params here
    memset(is_msg_params_set, 0,
            MAX_MN_MSG_PARAM_TYPES*sizeof(*is_msg_params_set));
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    ret = configuration_get_value_double(&config, "PARAMS", "intra_bandwidth", NULL,
            &cn_bandwidth);
    if(ret && !g_tw_mynode) {
        fprintf(stderr, "Bandwidth of compute node channels not specified, "
                "setting to %lf\n", cn_bandwidth);
    }

    codes_cn_delay = 1/cn_bandwidth;
    if(!g_tw_mynode) {
        printf("within node transfer per byte delay is %f\n", codes_cn_delay);
    }
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    ret = configuration_get_value_int(&config, "PARAMS", "node_eager_limit", NULL,
            &codes_node_eager_limit);
    if(ret && !g_tw_mynode) {
        fprintf(stderr, "Within-node eager limit (node_eager_limit) not specified, "
                "setting to %d\n", codes_node_eager_limit);
    }
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    return ids;
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}

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int model_net_get_id(char *name){
    int i;
    for(i=0; method_array[i] != NULL; i++) {
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        if(strcmp(model_net_method_names[i], name) == 0) {
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            return i;
        }
    }
    return -1;
}

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void model_net_write_stats(tw_lpid lpid, struct mn_stats* stat)
{
    int ret;
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    char id[19+CATEGORY_NAME_MAX+1];
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    char data[1024];

    sprintf(id, "model-net-category-%s", stat->category);
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    sprintf(data, "lp:%ld\tsend_count:%ld\tsend_bytes:%ld\tsend_time:%f\t"
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        "recv_count:%ld\trecv_bytes:%ld\trecv_time:%f\tmax_event_size:%ld\n",
        (long)lpid,
        stat->send_count,
        stat->send_bytes,
        stat->send_time,
        stat->recv_count,
        stat->recv_bytes,
        stat->recv_time,
        stat->max_event_size);

    ret = lp_io_write(lpid, id, strlen(data), data);
    assert(ret == 0);

    return;
}

void model_net_print_stats(tw_lpid lpid, mn_stats mn_stats_array[])
{

    int i;
    struct mn_stats all;

    memset(&all, 0, sizeof(all));
    sprintf(all.category, "all");

    for(i=0; i<CATEGORY_MAX; i++)
    {
        if(strlen(mn_stats_array[i].category) > 0)
        {
            all.send_count += mn_stats_array[i].send_count;
            all.send_bytes += mn_stats_array[i].send_bytes;
            all.send_time += mn_stats_array[i].send_time;
            all.recv_count += mn_stats_array[i].recv_count;
            all.recv_bytes += mn_stats_array[i].recv_bytes;
            all.recv_time += mn_stats_array[i].recv_time;
            if(mn_stats_array[i].max_event_size > all.max_event_size)
                all.max_event_size = mn_stats_array[i].max_event_size;

            model_net_write_stats(lpid, &mn_stats_array[i]);
        }
    }
    model_net_write_stats(lpid, &all);
}

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struct mn_stats* model_net_find_stats(char const * category, mn_stats mn_stats_array[])
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{
    int i;
    int new_flag = 0;
    int found_flag = 0;

    for(i=0; i<CATEGORY_MAX; i++)
    {
        if(strlen(mn_stats_array[i].category) == 0)
        {
            found_flag = 1;
            new_flag = 1;
            break;
        }
        if(strcmp(category, mn_stats_array[i].category) == 0)
        {
            found_flag = 1;
            new_flag = 0;
            break;
        }
    }
    assert(found_flag);

    if(new_flag)
    {
        strcpy(mn_stats_array[i].category, category);
    }
    return(&mn_stats_array[i]);
}

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static model_net_event_return model_net_noop_event(
        tw_lpid final_dest_lp,
        int is_pull,
        tw_stime offset,
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        uint64_t message_size,
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        int remote_event_size,
        void const * remote_event,
        int self_event_size,
        void const * self_event,
        tw_lp *sender)
{
    model_net_event_return num_rng_calls = 0;
    tw_stime poffset = mn_in_sequence ? mn_msg_offset : 0.0;
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    tw_stime delay = codes_local_latency(sender);

    tw_stime sendTime = message_size * codes_cn_delay;
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    if (self_event_size && self_event != NULL) {
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        poffset += delay;
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        num_rng_calls++;
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        tw_event *e = tw_event_new(sender->gid, poffset+offset+sendTime, sender);
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        memcpy(tw_event_data(e), self_event, self_event_size);
        tw_event_send(e);
    }

    if (remote_event_size && remote_event != NULL) {
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        poffset += delay;
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        num_rng_calls++;
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        /* special case - in a "pull" event, the "remote" message is actually
         * to self */
        tw_event *e = tw_event_new(is_pull ? sender->gid : final_dest_lp,
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                poffset+offset+sendTime, sender);
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        memcpy(tw_event_data(e), remote_event, remote_event_size);
        tw_event_send(e);
    }

    if (mn_in_sequence)
        mn_msg_offset += poffset;

    return num_rng_calls;
}

static model_net_event_return model_net_event_impl_base(
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        int net_id,
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        struct codes_mctx const * send_map_ctx,
        struct codes_mctx const * recv_map_ctx,
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        char const * category,
        tw_lpid final_dest_lp,
        uint64_t message_size,
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        int is_pull,
        tw_stime offset,
        int remote_event_size,
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        void const * remote_event,
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        int self_event_size,
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        void const * self_event,
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        tw_lp *sender) {
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    if (remote_event_size + self_event_size + sizeof(model_net_wrap_msg)
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            > g_tw_msg_sz){
        tw_error(TW_LOC, "Error: model_net trying to transmit an event of size "
                         "%d but ROSS is configured for events of size %zd\n",
                         remote_event_size+self_event_size+sizeof(model_net_wrap_msg),
                         g_tw_msg_sz);
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        return -1;
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    }
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    tw_lpid src_mn_lp = model_net_find_local_device_mctx(net_id, send_map_ctx,
            sender->gid);
    tw_lpid dest_mn_lp = model_net_find_local_device_mctx(net_id, recv_map_ctx,
            final_dest_lp);

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    if (src_mn_lp == dest_mn_lp && message_size < (uint64_t)codes_node_eager_limit)
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        return model_net_noop_event(final_dest_lp, is_pull, offset, message_size,
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                remote_event_size, remote_event, self_event_size, self_event,
                sender);

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    tw_stime poffset = codes_local_latency(sender);
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    if (mn_in_sequence){
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        tw_stime tmp = mn_msg_offset;
        mn_msg_offset += poffset;
        poffset += tmp;
    }
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    tw_event *e = tw_event_new(src_mn_lp, poffset+offset, sender);
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    model_net_wrap_msg *m = tw_event_data(e);
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    msg_set_header(model_net_base_magic, MN_BASE_NEW_MSG, sender->gid, &m->h);
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    // set the request struct
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    model_net_request *r = &m->msg.m_base.req;
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    r->final_dest_lp = final_dest_lp;
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    r->dest_mn_lp = dest_mn_lp;
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    r->src_lp = sender->gid;
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    r->is_pull = is_pull;
    if (r->is_pull) {
        r->msg_size = PULL_MSG_SIZE;
        r->pull_size = message_size;
    }
    else {
        r->msg_size = message_size;
        r->pull_size = 0;
    }
    r->net_id = net_id;
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    r->remote_event_size = remote_event_size;
    r->self_event_size = self_event_size;
    strncpy(r->category, category, CATEGORY_NAME_MAX-1);
    r->category[CATEGORY_NAME_MAX-1]='\0';
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    if (is_msg_params_set[MN_MSG_PARAM_START_TIME])
        r->msg_start_time = start_time_param;
    else
        r->msg_start_time = tw_now(sender);

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    // this is an outgoing message
    m->msg.m_base.is_from_remote = 0;
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    m->msg.m_base.isQueueReq = 1;
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    // set the msg-specific params
    if (is_msg_params_set[MN_SCHED_PARAM_PRIO])
        m->msg.m_base.sched_params = sched_params;
    else // set the default
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        model_net_sched_set_default_params(&m->msg.m_base.sched_params);
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    // once params are set, clear the flags
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    memset(is_msg_params_set, 0,
            MAX_MN_MSG_PARAM_TYPES*sizeof(*is_msg_params_set));

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    void *e_msg = (m+1);
    if (remote_event_size > 0){
        memcpy(e_msg, remote_event, remote_event_size);
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        e_msg = (char*)e_msg + remote_event_size;
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    }
    if (self_event_size > 0){
        memcpy(e_msg, self_event, self_event_size);
    }
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    //print_base(m);
    tw_event_send(e);
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    return 1;
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}
static void model_net_event_impl_base_rc(tw_lp *sender){
    codes_local_latency_reverse(sender);
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}
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model_net_event_return model_net_event(
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    int net_id,
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    char const * category,
    tw_lpid final_dest_lp,
    uint64_t message_size,
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    tw_stime offset,
    int remote_event_size,
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    void const * remote_event,
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    int self_event_size,
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    void const * self_event,
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    tw_lp *sender)
{
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    return model_net_event_impl_base(net_id, CODES_MCTX_DEFAULT,
            CODES_MCTX_DEFAULT, category, final_dest_lp, message_size, 0,
            offset, remote_event_size, remote_event, self_event_size,
            self_event, sender);
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}

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model_net_event_return model_net_event_annotated(
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        int net_id,
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        char const * annotation,
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        char const * category,
        tw_lpid final_dest_lp,
        uint64_t message_size,
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        tw_stime offset,
        int remote_event_size,
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        void const * remote_event,
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        int self_event_size,
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        void const * self_event,
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        tw_lp *sender){
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    struct codes_mctx mc = codes_mctx_set_group_modulo(annotation, false);
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    return model_net_event_impl_base(net_id, &mc, &mc, category, final_dest_lp,
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            message_size, 0, offset, remote_event_size, remote_event,
            self_event_size, self_event, sender);
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}

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model_net_event_return model_net_event_mctx(
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        int net_id,
        struct codes_mctx const * send_map_ctx,
        struct codes_mctx const * recv_map_ctx,
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        char const * category,
        tw_lpid final_dest_lp,
        uint64_t message_size,
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        tw_stime offset,
        int remote_event_size,
        void const * remote_event,
        int self_event_size,
        void const * self_event,
        tw_lp *sender){
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    return model_net_event_impl_base(net_id, send_map_ctx, recv_map_ctx,
            category, final_dest_lp, message_size, 0, offset,
            remote_event_size, remote_event, self_event_size, self_event,
            sender);
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}

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model_net_event_return model_net_pull_event(
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        int net_id,
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        char const *category,
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        tw_lpid final_dest_lp,
        uint64_t message_size,
        tw_stime offset,
        int self_event_size,
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        void const *self_event,
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        tw_lp *sender){
    /* NOTE: for a pull, we are filling the *remote* event - it will be remote
     * from the destination's POV */
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    return model_net_event_impl_base(net_id, CODES_MCTX_DEFAULT,
            CODES_MCTX_DEFAULT, category, final_dest_lp, message_size, 1,
            offset, self_event_size, self_event, 0, NULL, sender);
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}

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model_net_event_return model_net_pull_event_annotated(
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        int net_id,
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        char const * annotation,
        char const *category,
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        tw_lpid final_dest_lp,
        uint64_t message_size,
        tw_stime offset,
        int self_event_size,
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        void const *self_event,
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        tw_lp *sender){
    /* NOTE: for a pull, we are filling the *remote* event - it will be remote
     * from the destination's POV */
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    struct codes_mctx mc = codes_mctx_set_group_modulo(annotation, false);
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    return model_net_event_impl_base(net_id, &mc, &mc, category, final_dest_lp,
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            message_size, 1, offset, self_event_size, self_event, 0, NULL,
            sender);
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}

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model_net_event_return model_net_pull_event_mctx(
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        int net_id,
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        struct codes_mctx const * send_map_ctx,
        struct codes_mctx const * recv_map_ctx,
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        char const *category,
        tw_lpid final_dest_lp,
        uint64_t message_size,
        tw_stime offset,
        int self_event_size,
        void const *self_event,
        tw_lp *sender){
    /* NOTE: for a pull, we are filling the *remote* event - it will be remote
     * from the destination's POV */
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    return model_net_event_impl_base(net_id, send_map_ctx, recv_map_ctx,
            category, final_dest_lp, message_size, 1, offset, self_event_size,
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            self_event, 0, NULL, sender);
}

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void model_net_event_rc2(
        tw_lp *sender,
        model_net_event_return const * ret)
{
    for (int i = 0; i < *ret; i++)
        codes_local_latency_reverse(sender);
}

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void model_net_event_rc(
        int net_id,
        tw_lp *sender,
        uint64_t message_size){
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    (void)net_id;
    (void)message_size;
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    model_net_event_impl_base_rc(sender);
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}

void model_net_pull_event_rc(
        int net_id,
        tw_lp *sender) {
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    (void)net_id;
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    model_net_event_impl_base_rc(sender);
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}

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void model_net_set_msg_param(
        enum msg_param_type type,
        int sub_type,
        const void * params){
    switch(type){
        case MN_MSG_PARAM_SCHED:
            is_msg_params_set[MN_MSG_PARAM_SCHED] = 1;
            switch(sub_type){
                case MN_SCHED_PARAM_PRIO:
                    sched_params.prio = *(int*)params;
                    break;
                default:
                    tw_error(TW_LOC, "unknown or unsupported "
                            "MN_MSG_PARAM_SCHED parameter type");
            }
            break;
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        case MN_MSG_PARAM_START_TIME:
            is_msg_params_set[MN_MSG_PARAM_START_TIME] = 1;
            switch(sub_type){
                case MN_MSG_PARAM_START_TIME_VAL:
                    start_time_param = *(tw_stime*)params;
                    break;
                default:
                    tw_error(TW_LOC, "unknown or unsupported "
                            "MN_MSG_PARAM_START_TIME parameter type");
            }
            break;
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        default:
            tw_error(TW_LOC, "unknown or unsupported msg_param_type");
    }
}

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/* returns the message size, can be either simplenet, dragonfly or torus message size*/
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int model_net_get_msg_sz(int net_id)
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{
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    (void)net_id;
    // TODO: Add checks on network name
    // TODO: Add dragonfly and torus network models
    return sizeof(model_net_wrap_msg);
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#if 0
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    if(net_id < 0 || net_id >= MAX_NETS)
    {
        printf("%s Error: Uninitializied modelnet network, call modelnet_init first\n", __FUNCTION__);
        exit(-1);
    }
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    return method_array[net_id]->mn_get_msg_sz();
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#endif
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}

/* returns the packet size in the modelnet struct */
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uint64_t model_net_get_packet_size(int net_id)
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{
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  if(net_id < 0 || net_id >= MAX_NETS)
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     {
       fprintf(stderr, "%s Error: Uninitializied modelnet network, call modelnet_init first\n", __FUNCTION__);
       exit(-1);
     }
  return method_array[net_id]->packet_size; // TODO: where to set the packet size?
}

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/* This event does a collective operation call for model-net */
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void model_net_event_collective(int net_id, char const * category, int message_size, int remote_event_size, const void* remote_event, tw_lp* sender)
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{
  if(net_id < 0 || net_id > MAX_NETS)
     {
       fprintf(stderr, "%s Error: Uninitializied modelnet network, call modelnet_init first\n", __FUNCTION__);
       exit(-1);
     }
  return method_array[net_id]->mn_collective_call(category, message_size, remote_event_size, remote_event, sender);
}

/* reverse event of the collective operation call */
void model_net_event_collective_rc(int net_id, int message_size, tw_lp* sender)
{
  if(net_id < 0 || net_id > MAX_NETS)
     {
       fprintf(stderr, "%s Error: Uninitializied modelnet network, call modelnet_init first\n", __FUNCTION__);
       exit(-1);
     }
  return method_array[net_id]->mn_collective_call_rc(message_size, sender);
}

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/* returns lp type for modelnet */
const tw_lptype* model_net_get_lp_type(int net_id)
{
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    if(net_id < 0 || net_id >= MAX_NETS)
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     {
       fprintf(stderr, "%s Error: Uninitializied modelnet network, call modelnet_init first\n", __FUNCTION__);
       exit(-1);
     }

   // TODO: ADd checks by network names
   // Add dragonfly and torus network models
   return method_array[net_id]->mn_get_lp_type();
}

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const st_model_types* model_net_get_model_stat_type(int net_id)
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{
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    if (!method_array[net_id]->mn_get_model_stat_types)
        tw_error(TW_LOC, "mn_get_model_stat_types not defined for network model with net_id: %d\n", net_id);
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   return method_array[net_id]->mn_get_model_stat_types();
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}

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void model_net_report_stats(int net_id)
{
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  if(net_id < 0 || net_id >= MAX_NETS)
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  {
    fprintf(stderr, "%s Error: Uninitializied modelnet network, call modelnet_init first\n", __FUNCTION__);
    exit(-1);
   }

     // TODO: ADd checks by network names
     //    // Add dragonfly and torus network models
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   method_array[net_id]->mn_report_stats();
   return;
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}
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tw_lpid model_net_find_local_device(
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        int          net_id,
        const char * annotation,
        int          ignore_annotations,
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        tw_lpid      sender_gid)
{
    struct codes_mctx const * mc_p;
    struct codes_mctx mc;
    if (ignore_annotations)
        mc_p = CODES_MCTX_DEFAULT;
    else {
        mc = codes_mctx_set_group_modulo(annotation, ignore_annotations);
        mc_p = &mc;
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    }
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    return model_net_find_local_device_mctx(net_id, mc_p, sender_gid);
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}

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tw_lpid model_net_find_local_device_mctx(
        int net_id,
        struct codes_mctx const * map_ctx,
        tw_lpid sender_gid)
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{
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    return codes_mctx_to_lpid(map_ctx, model_net_lp_config_names[net_id],
            sender_gid);
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}

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#ifdef ENABLE_CORTEX
/* structure that gives access to the topology functions */
cortex_topology model_net_topology;
#endif

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