local-storage-model-test.c 8.44 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14
/*
 * Copyright (C) 2013 University of Chicago.
 * See COPYRIGHT notice in top-level directory.
 *
 */

/* SUMMARY:
 *
 */

#include <string.h>
#include <assert.h>
#include <ross.h>

15 16 17 18 19 20
#include <codes/lp-io.h>
#include <codes/codes.h>
#include <codes/codes_mapping.h>
#include <codes/local-storage-model.h>
#include <codes/codes-mapping-context.h>
#include <codes/codes-callback.h>
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44

#define NUM_REQS 2000  /* number of requests sent by each server */
#define PAYLOAD_SZ (1024*1024) /* size of simulated data payload, bytes  */

typedef struct svr_msg svr_msg;
typedef struct svr_state svr_state;

/* types of events that will constitute triton requests */
enum svr_event_type
{
    KICKOFF,    /* initial event */
    ACK,        /* ack event */
    LOCAL,      /* local completion of a send */
};

struct svr_state
{
    int msg_sent_count;   /* requests sent */
    int msg_recvd_count;  /* requests recvd */
    tw_stime start_ts;    /* time that we started sending requests */
};

struct svr_msg
{
45 46 47
    msg_header h;
    int tag;
    lsm_return_t ret;
48 49 50
    int incremented_flag; /* helper for reverse computation */
};

51 52 53
static int magic = 123;
static struct codes_cb_info cb_info;

54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82
char conf_file_name[256] = {0};

const tw_optdef app_opt[] = {
    TWOPT_GROUP("Simple Network Test Model"),
    TWOPT_CHAR("conf", conf_file_name, "Name of configuration file"),
    TWOPT_END()
};


static void svr_init(
    svr_state * ns,
    tw_lp * lp);
static void svr_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp);
static void svr_rev_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp);
static void svr_finalize(
    svr_state * ns,
    tw_lp * lp);
static tw_peid svr_node_mapping(
    tw_lpid gid);

tw_lptype svr_lp = {
83 84 85 86
    (init_f) svr_init,
    (pre_run_f) NULL,
    (event_f) svr_event,
    (revent_f) svr_rev_event,
87 88
    (commit_f) NULL,
    (final_f) svr_finalize,
89 90
    (map_f) svr_node_mapping,
    sizeof(svr_state),
91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133
};

static tw_stime ns_to_s(tw_stime ns);
static tw_stime s_to_ns(tw_stime ns);
static void handle_kickoff_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp);
static void handle_ack_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp);
static void handle_kickoff_rev_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp);
static void handle_ack_rev_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp);
static void handle_local_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp);

int main(
    int argc,
    char **argv)
{
    int nprocs;
    int rank;
    lp_io_handle handle;
    int ret;

    g_tw_ts_end = s_to_ns(60*60*24*365); /* one year, in nsecs */

    tw_opt_add(app_opt);
    tw_init(&argc, &argv);
134

135 136
    MPI_Comm_rank(MPI_COMM_WORLD, &rank);
    MPI_Comm_size(MPI_COMM_WORLD, &nprocs);
137

138 139 140 141 142 143 144 145 146
    /* read in configuration file */
    ret = configuration_load(conf_file_name, MPI_COMM_WORLD, &config);
    if (ret)
    {
        fprintf(stderr, "Error opening config file: %s\n", conf_file_name);
        return(-1);
    }

    lp_type_register("server", &svr_lp);
147
    lsm_register();
148 149 150

    codes_mapping_setup();

151 152
    lsm_configure();

153 154 155
    ret = lp_io_prepare("lsm-test", LP_IO_UNIQ_SUFFIX, &handle, MPI_COMM_WORLD);
    if(ret < 0)
    {
156
       return(-1);
157 158
    }

159 160
    INIT_CODES_CB_INFO(&cb_info, svr_msg, h, tag, ret);

161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177
    tw_run();

    ret = lp_io_flush(handle, MPI_COMM_WORLD);
    assert(ret == 0);

    tw_end();

    return 0;
}

static void svr_init(
    svr_state * ns,
    tw_lp * lp)
{
    tw_event *e;
    svr_msg *m;
    tw_stime kickoff_time;
178

179 180 181 182 183 184 185
    memset(ns, 0, sizeof(*ns));

    /* each server sends a dummy event to itself that will kick off the real
     * simulation
     */

    /* skew each kickoff event slightly to help avoid event ties later on */
186
    kickoff_time = g_tw_lookahead + tw_rand_unif(lp->rng);
187

Jonathan Jenkins's avatar
Jonathan Jenkins committed
188
    e = tw_event_new(lp->gid, kickoff_time, lp);
189
    m = tw_event_data(e);
190
    msg_set_header(magic, KICKOFF, lp->gid, &m->h);
191 192 193 194 195 196 197 198 199 200 201
    tw_event_send(e);

    return;
}

static void svr_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp)
{
202 203
    assert(m->h.magic == magic);
    switch (m->h.event_type)
204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225
    {
        case ACK:
            handle_ack_event(ns, b, m, lp);
            break;
        case KICKOFF:
            handle_kickoff_event(ns, b, m, lp);
            break;
        case LOCAL:
            handle_local_event(ns, b, m, lp);
            break;
        default:
            assert(0);
            break;
    }
}

static void svr_rev_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp)
{
226
    switch (m->h.event_type)
227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282
    {
        case ACK:
            handle_ack_rev_event(ns, b, m, lp);
            break;
        case KICKOFF:
            handle_kickoff_rev_event(ns, b, m, lp);
            break;
        case LOCAL:
            /* NOTE: nothing to reverse here. */
            break;
        default:
            assert(0);
            break;
    }

    return;
}

static void svr_finalize(
    svr_state * ns,
    tw_lp * lp)
{
    printf("server %llu : size:%d requests:%d time:%lf rate:%lf\n",
           (unsigned long long)lp->gid,
           PAYLOAD_SZ,
           NUM_REQS,
           ns_to_s((tw_now(lp)-ns->start_ts)),
           (double)(PAYLOAD_SZ*NUM_REQS)/(1024.0*1024.0)/ns_to_s((tw_now(lp)-ns->start_ts)));
    return;
}

static tw_peid svr_node_mapping(
    tw_lpid gid)
{
    return (tw_peid) gid / g_tw_nlp;
}

/* convert ns to seconds */
static tw_stime ns_to_s(tw_stime ns)
{
    return(ns / (1000.0 * 1000.0 * 1000.0));
}

/* convert seconds to ns */
static tw_stime s_to_ns(tw_stime ns)
{
    return(ns * (1000.0 * 1000.0 * 1000.0));
}

/* handle initial event */
static void handle_kickoff_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp)
{
Jonathan Jenkins's avatar
Jonathan Jenkins committed
283 284
    (void)b;
    (void)m;
285 286 287 288 289 290 291 292 293 294
    double rate;
    double seek;

    if (LSM_DEBUG)
        printf("handle_kickoff_event(), lp %llu.\n",
            (unsigned long long)lp->gid);

    /* record when transfers started on this server */
    ns->start_ts = tw_now(lp);

295
    /* these are derived from the config file... */
296 297 298 299 300 301 302
    rate = 50.0;
    seek = 2000.0;
    printf("server %llu : disk_rate:%lf disk_seek:%lf\n",
           (unsigned long long)lp->gid,
           rate,
           seek);

303 304
    msg_header h;
    msg_set_header(magic, ACK, lp->gid, &h);
305

306 307
    lsm_io_event("test", 0, 0, PAYLOAD_SZ, LSM_WRITE_REQUEST, 1.0, lp,
            CODES_MCTX_DEFAULT, 0, &h, &cb_info);
308

309
    ns->msg_sent_count++;
310

311 312 313 314
    // make a parallel dummy request to test out sched
    h.event_type = LOCAL;
    lsm_io_event("test", 0, 0, PAYLOAD_SZ, LSM_WRITE_REQUEST, 2.0, lp,
            CODES_MCTX_DEFAULT, 1, &h, &cb_info);
315 316 317 318 319 320 321 322 323
}

/* reverse handler for kickoff */
static void handle_kickoff_rev_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp)
{
Jonathan Jenkins's avatar
Jonathan Jenkins committed
324 325
    (void)b;
    (void)m;
326 327
    lsm_io_event_rc(lp);
    lsm_io_event_rc(lp);
328 329 330 331 332 333 334 335 336 337 338 339 340 341

    ns->msg_sent_count--;

    return;
}


/* reverse handler for ack */
static void handle_ack_rev_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp)
{
Jonathan Jenkins's avatar
Jonathan Jenkins committed
342
    (void)b;
343 344
    if(m->incremented_flag)
    {
345 346
        lsm_io_event_rc(lp);
        lsm_io_event_rc(lp);
347 348 349 350 351 352 353 354 355 356 357
        ns->msg_sent_count--;
    }
}

/* handle recving ack */
static void handle_ack_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp)
{
Jonathan Jenkins's avatar
Jonathan Jenkins committed
358
    (void)b;
359 360 361 362 363 364 365
    if (LSM_DEBUG)
        printf("handle_ack_event(), lp %llu.\n",
            (unsigned long long)lp->gid);

    if(ns->msg_sent_count < NUM_REQS)
    {
        /* send another request */
366 367 368 369 370
        msg_header h;
        msg_set_header(magic, ACK, lp->gid, &h);
        lsm_io_event("test", 0, 0, PAYLOAD_SZ, LSM_WRITE_REQUEST, 0.0, lp,
                CODES_MCTX_DEFAULT, 0, &h, &cb_info);

371 372
        ns->msg_sent_count++;
        m->incremented_flag = 1;
373

374 375 376 377
        // make a parallel dummy request to test out sched
        h.event_type = LOCAL;
        lsm_io_event("test", 0, 0, PAYLOAD_SZ, LSM_WRITE_REQUEST, 2.0, lp,
                CODES_MCTX_DEFAULT, 1, &h, &cb_info);
378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393
    }
    else
    {
        m->incremented_flag = 0;
    }

    return;
}

/* handle notification of local send completion */
static void handle_local_event(
    svr_state * ns,
    tw_bf * b,
    svr_msg * m,
    tw_lp * lp)
{
Jonathan Jenkins's avatar
Jonathan Jenkins committed
394 395 396
    (void)ns;
    (void)b;
    (void)m;
397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413
    if (LSM_DEBUG)
        printf("handle_local_event(), lp %llu.\n",
            (unsigned long long)lp->gid);

    return;
}



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