| 1 | < | /* Copyright (c) 1998 Silicon Graphics, Inc. */ | 
| 1 | > | /* Copyright (c) 1999 Silicon Graphics, Inc. */ | 
| 2 |  |  | 
| 3 |  | #ifndef lint | 
| 4 |  | static char SCCSid[] = "$SunId$ SGI"; | 
| 11 |  | #include "rholo.h" | 
| 12 |  | #include "random.h" | 
| 13 |  | #include <signal.h> | 
| 14 | – | #include <sys/types.h> | 
| 14 |  | #include <sys/stat.h> | 
| 15 |  |  | 
| 16 | + | #ifndef FRAGWARN | 
| 17 | + | #define FRAGWARN        20              /* fragmentation for warning (%) */ | 
| 18 | + | #endif | 
| 19 |  | #ifndef MAXQTIME | 
| 20 |  | #define MAXQTIME        5               /* target maximum seconds in queue */ | 
| 21 |  | #endif | 
| 22 | + | /* manual cache flushing frequency */ | 
| 23 | + | #ifndef RTFLUSH | 
| 24 | + | #if MAXQTIME | 
| 25 | + | #define RTFLUSH         (300/MAXQTIME*totqlen)  /* <= 5 minutes */ | 
| 26 | + | #else | 
| 27 | + | #define RTFLUSH         (50*totqlen)            /* just guess */ | 
| 28 | + | #endif | 
| 29 | + | #endif | 
| 30 |  | /* the following must be consistent with rholo.h */ | 
| 31 |  | int     NVARS = NRHVARS;                /* total number of variables */ | 
| 32 |  |  | 
| 36 |  | char    *hdkfile;               /* holodeck file name */ | 
| 37 |  | char    froot[256];             /* root file name */ | 
| 38 |  |  | 
| 29 | – | int     nowarn = 0;             /* turn warnings off? */ | 
| 30 | – |  | 
| 39 |  | int     ncprocs = 0;            /* desired number of compute processes */ | 
| 40 |  |  | 
| 41 |  | char    *outdev = NULL;         /* output device name */ | 
| 59 |  | long    npacksdone = 0L;        /* number of packets done */ | 
| 60 |  |  | 
| 61 |  | PACKET  *freepacks;             /* available packets */ | 
| 62 | < | int     totqlen;                /* maximum queue length when full */ | 
| 62 | > | int     totqlen;                /* maximum queue length (number of packets) */ | 
| 63 |  |  | 
| 64 |  | char  *sigerr[NSIG];            /* signal error messages */ | 
| 65 |  |  | 
| 66 | + | extern int      nowarn;         /* turn warnings off? */ | 
| 67 | + |  | 
| 68 |  | extern time_t   time(); | 
| 69 |  |  | 
| 70 |  |  | 
| 154 |  | { | 
| 155 |  | static int  gotsig = 0; | 
| 156 |  |  | 
| 157 | < | if (gotsig++)                   /* two signals and we're gone! */ | 
| 157 | > | if (gotsig > 1)                 /* we're going as fast as we can! */ | 
| 158 | > | return; | 
| 159 | > | if (gotsig++) {                 /* two signals and we split */ | 
| 160 | > | hdsync(NULL, 0);        /* don't leave w/o saying goodbye */ | 
| 161 |  | _exit(signo); | 
| 162 | < |  | 
| 163 | < | alarm(60);                      /* allow 60 seconds to clean up */ | 
| 151 | < | signal(SIGALRM, SIG_DFL);       /* make certain we do die */ | 
| 162 | > | } | 
| 163 | > | alarm(300);                     /* allow 5 minutes to clean up */ | 
| 164 |  | eputs("signal - "); | 
| 165 |  | eputs(sigerr[signo]); | 
| 166 |  | eputs("\n"); | 
| 216 |  | maxdisk = 1024.*1024.*vflt(DISKSPACE); | 
| 217 |  | /* set up memory cache */ | 
| 218 |  | if (outdev == NULL) | 
| 219 | < | hdcachesize = 0;        /* manual flushing */ | 
| 219 | > | hdcachesize = 0;                /* manual flushing */ | 
| 220 |  | else if (vdef(CACHE)) | 
| 221 |  | hdcachesize = 1024.*1024.*vflt(CACHE); | 
| 222 |  | /* open report file */ | 
| 271 |  | sigdie(SIGXCPU, "CPU limit exceeded"); | 
| 272 |  | sigdie(SIGXFSZ, "File size exceeded"); | 
| 273 |  | #endif | 
| 274 | < | /* protect holodeck file */ | 
| 274 | > | /* protect holodeck file */ | 
| 275 |  | orig_mode = resfmode(hdlist[0]->fd, ncprocs>0 ? 0 : 0444); | 
| 276 |  | return; | 
| 277 |  | memerr: | 
| 281 |  |  | 
| 282 |  | rholo()                         /* holodeck main loop */ | 
| 283 |  | { | 
| 284 | + | static long     nextfragwarn = 100*(1L<<20); | 
| 285 |  | static int      idle = 0; | 
| 286 |  | PACKET  *pl = NULL, *plend; | 
| 287 | + | long    fsiz; | 
| 288 |  | int     pksiz; | 
| 289 |  | register PACKET *p; | 
| 290 |  | time_t  t; | 
| 298 |  | return(1); | 
| 299 |  | } else if (idle) | 
| 300 |  | return(0);              /* all done */ | 
| 301 | < | /* check file size */ | 
| 302 | < | if (maxdisk > 0 && hdfilen(hdlist[0]->fd) >= maxdisk) { | 
| 301 | > | fsiz = hdfilen(hdlist[0]->fd);  /* check file size */ | 
| 302 | > | if (maxdisk > 0 && fsiz >= maxdisk) { | 
| 303 |  | error(WARNING, "file limit exceeded"); | 
| 304 |  | done_rtrace(); | 
| 305 |  | return(1);      /* comes back */ | 
| 306 |  | } | 
| 307 | + | #if FRAGWARN | 
| 308 | + | if (fsiz >= nextfragwarn && | 
| 309 | + | (fsiz-hdfiluse(hdlist[0]->fd,0))/(fsiz/100) > FRAGWARN) { | 
| 310 | + | sprintf(errmsg, "holodeck file fragmentation is %.0f%%", | 
| 311 | + | 100.*(fsiz-hdfiluse(hdlist[0]->fd,1))/fsiz); | 
| 312 | + | error(WARNING, errmsg); | 
| 313 | + | nextfragwarn = fsiz + (fsiz>>2);        /* decent interval */ | 
| 314 | + | } | 
| 315 | + | #endif | 
| 316 |  | t = time(NULL);                 /* check time */ | 
| 317 |  | if (endtime > 0 && t >= endtime) { | 
| 318 |  | error(WARNING, "time limit exceeded"); | 
| 322 |  | if (reporttime > 0 && t >= reporttime) | 
| 323 |  | report(t); | 
| 324 |  | /* figure out good packet size */ | 
| 325 | + | pksiz = RPACKSIZ; | 
| 326 |  | #if MAXQTIME | 
| 327 | < | pksiz = nraysdone*MAXQTIME/(totqlen*(t - starttime + 1L)); | 
| 328 | < | if (pksiz < 1) | 
| 329 | < | pksiz = 1; | 
| 330 | < | else if (pksiz > RPACKSIZ) | 
| 327 | > | if (!chunkycmp) { | 
| 328 | > | pksiz = nraysdone*MAXQTIME/(totqlen*(t - starttime + 1L)); | 
| 329 | > | if (pksiz < 1) pksiz = 1; | 
| 330 | > | else if (pksiz > RPACKSIZ) pksiz = RPACKSIZ; | 
| 331 | > | } | 
| 332 |  | #endif | 
| 308 | – | pksiz = RPACKSIZ; | 
| 333 |  | idle = 0;                       /* get packets to process */ | 
| 334 |  | while (freepacks != NULL) { | 
| 335 |  | p = freepacks; freepacks = p->next; p->next = NULL; | 
| 391 |  | for (i = 0; i < 3; i++) | 
| 392 |  | len[i] = VLEN(gp->xv[i]); | 
| 393 |  | if (!vdef(GRID)) { | 
| 394 | < | d = 2/5e5*( len[0]*len[0]*(len[1]*len[1] + | 
| 394 | > | d = 2/2e5*( len[0]*len[0]*(len[1]*len[1] + | 
| 395 |  | len[2]*len[2] + 4*len[1]*len[2]) | 
| 396 |  | + len[1]*len[1]*len[2]*(len[2] + 4*len[0]) | 
| 397 |  | + 4*len[0]*len[1]*len[2]*len[2] ); | 
| 444 |  | } | 
| 445 |  |  | 
| 446 |  |  | 
| 447 | + | int | 
| 448 |  | headline(s)                     /* process information header line */ | 
| 449 |  | char    *s; | 
| 450 |  | { | 
| 458 |  | HOLOFMT, hdkfile, FMTSTR, fmt); | 
| 459 |  | error(USER, errmsg); | 
| 460 |  | } | 
| 461 | < | return; | 
| 461 | > | return(0); | 
| 462 |  | } | 
| 463 |  | for (cp = s; *cp; cp++)         /* take off any comments */ | 
| 464 |  | if (*cp == '#') { | 
| 466 |  | break; | 
| 467 |  | } | 
| 468 |  | setvariable(s, matchvar);       /* don't flag errors */ | 
| 469 | + | return(0); | 
| 470 |  | } | 
| 471 |  |  | 
| 472 |  |  | 
| 479 |  | int4    nextloc; | 
| 480 |  | /* open holodeck file */ | 
| 481 |  | if ((fp = fopen(hdkfile, ncprocs>0 ? "r+" : "r")) == NULL) { | 
| 482 | < | sprintf(errmsg, "cannot open \"%s\" for %s", hdkfile, | 
| 483 | < | ncprocs>0 ? "appending" : "reading"); | 
| 482 | > | sprintf(errmsg, "cannot %s \"%s\"", | 
| 483 | > | ncprocs>0 ? "append" : "read", hdkfile); | 
| 484 |  | error(SYSTEM, errmsg); | 
| 485 |  | } | 
| 486 |  | /* load variables from header */ | 
| 521 |  | p->nr*sizeof(RAYVAL)); | 
| 522 |  | if (outdev != NULL)     /* display it */ | 
| 523 |  | disp_packet((PACKHEAD *)p); | 
| 524 | < | if (hdcachesize <= 0)   /* manual flushing */ | 
| 524 | > | if (hdcachesize <= 0) | 
| 525 |  | n2flush++; | 
| 526 |  | nraysdone += p->nr; | 
| 527 |  | npacksdone++; | 
| 530 |  | p->next = freepacks;            /* push onto free list */ | 
| 531 |  | freepacks = p; | 
| 532 |  | } | 
| 533 | < | if (n2flush > 300/MAXQTIME*totqlen) { | 
| 534 | < | hdflush(NULL);                  /* flush holodeck buffers */ | 
| 533 | > | if (n2flush >= RTFLUSH) { | 
| 534 | > | if (outdev != NULL) | 
| 535 | > | hdsync(NULL, 1); | 
| 536 | > | else | 
| 537 | > | hdflush(NULL); | 
| 538 |  | n2flush = 0; | 
| 539 |  | } | 
| 540 |  | } | 
| 579 |  | fflush(stderr); | 
| 580 |  | midline = 0; | 
| 581 |  | } | 
| 553 | – | } | 
| 554 | – |  | 
| 555 | – |  | 
| 556 | – | wputs(s)                        /* put warning string to stderr */ | 
| 557 | – | char    *s; | 
| 558 | – | { | 
| 559 | – | if (!nowarn) | 
| 560 | – | eputs(s); | 
| 582 |  | } | 
| 583 |  |  | 
| 584 |  |  |