1 /* -----------------------------------------------------------------------------
2 * $Id: RtsFlags.c,v 1.51 2001/10/01 11:36:28 simonmar Exp $
4 * (c) The AQUA Project, Glasgow University, 1994-1997
5 * (c) The GHC Team, 1998-1999
7 * Functions for parsing the argument list.
9 * ---------------------------------------------------------------------------*/
14 //* Static function decls::
15 //* Command-line option parsing routines::
16 //* GranSim specific options::
21 //@node Includes, Constants
22 //@subsection Includes
24 #include "PosixSource.h"
28 #include "BlockAlloc.h"
29 #include "Itimer.h" /* CS_MIN_MILLISECS */
30 #include "Profiling.h"
32 #if defined(PROFILING)
40 extern struct RTS_FLAGS RtsFlags;
43 * Split argument lists
45 int prog_argc; /* an "int" so as to match normal "argc" */
46 char **prog_argv = NULL;
47 int rts_argc; /* ditto */
48 char *rts_argv[MAX_RTS_ARGS];
50 //@node Constants, Static function decls, Includes
51 //@subsection Constants
54 * constants, used later
59 char *debug_opts_strs[] = {
60 "DEBUG (-D1): scheduler\n",
61 "DEBUG (-D2): evaluator\n",
62 "DEBUG (-D4): codegen\n",
63 "DEBUG (-D8): weak\n",
64 "DEBUG (-D16): gccafs\n",
66 "DEBUG (-D64): block\n",
67 "DEBUG (-D128): sanity\n",
68 "DEBUG (-D256): stable\n",
69 "DEBUG (-D512): prof\n",
70 "DEBUG (-D1024): gran\n",
71 "DEBUG (-D2048): par\n",
72 "DEBUG (-D4096): linker\n"
75 char *debug_opts_prefix[] = {
93 char *gran_debug_opts_strs[] = {
94 "DEBUG (-bDe, -bD1): event_trace; printing event trace.\n",
95 "DEBUG (-bDE, -bD2): event_stats; printing event statistics.\n",
96 "DEBUG (-bDb, -bD4): bq; check blocking queues\n",
97 "DEBUG (-bDG, -bD8): pack; routines for (un-)packing graph structures.\n",
98 "DEBUG (-bDq, -bD16): checkSparkQ; check consistency of the spark queues.\n",
99 "DEBUG (-bDf, -bD32): thunkStealing; print forwarding of fetches.\n",
100 "DEBUG (-bDr, -bD64): randomSteal; stealing sparks/threads from random PEs.\n",
101 "DEBUG (-bDF, -bD128): findWork; searching spark-pools (local & remote), thread queues for work.\n",
102 "DEBUG (-bDu, -bD256): unused; currently unused flag.\n",
103 "DEBUG (-bDS, -bD512): pri; priority sparking or scheduling.\n",
104 "DEBUG (-bD:, -bD1024): checkLight; check GranSim-Light setup.\n",
105 "DEBUG (-bDo, -bD2048): sortedQ; check whether spark/thread queues are sorted.\n",
106 "DEBUG (-bDz, -bD4096): blockOnFetch; check for blocked on fetch.\n",
107 "DEBUG (-bDP, -bD8192): packBuffer; routines handling pack buffer (GranSim internal!).\n",
108 "DEBUG (-bDt, -bD16384): blockOnFetch_sanity; check for TSO asleep on fetch.\n",
111 /* one character codes for the available debug options */
112 char gran_debug_opts_flags[] = {
113 'e', 'E', 'b', 'G', 'q', 'f', 'r', 'F', 'u', 'S', ':', 'o', 'z', 'P', 't'
116 /* prefix strings printed with the debug messages of the corresponding type */
117 char *gran_debug_opts_prefix[] = {
118 "", /* event_trace */
119 "", /* event_stats */
122 "^^", /* checkSparkQ */
123 "==", /* thunkStealing */
124 "^^", /* randomSteal */
128 "::", /* checkLight */
130 "", /* blockOnFetch */
132 "" /* blockOnFetch_sanity */
137 char *par_debug_opts_strs[] = {
138 "DEBUG (-qDv, -qD1): verbose; be generally verbose with parallel related stuff.\n",
139 "DEBUG (-qDq, -qD2): bq; print blocking queues.\n",
140 "DEBUG (-qDs, -qD4): schedule; scheduling of parallel threads.\n",
141 "DEBUG (-qDe, -qD8): free; free messages.\n",
142 "DEBUG (-qDr, -qD16): resume; resume messages.\n",
143 "DEBUG (-qDw, -qD32): weight; print weights and distrib GC stuff.\n",
144 "DEBUG (-qDF, -qD64): fetch; fetch messages.\n",
145 // "DEBUG (-qDa, -qD128): ack; ack messages.\n",
146 "DEBUG (-qDf, -qD128): fish; fish messages.\n",
147 //"DEBUG (-qDo, -qD512): forward; forwarding messages to other PEs.\n",
148 "DEBUG (-qDl, -qD256): tables; print internal LAGA etc tables.\n",
149 "DEBUG (-qDo, -qD512): packet; packets and graph structures when packing.\n",
150 "DEBUG (-qDp, -qD1024): pack; packing and unpacking graphs.\n",
151 "DEBUG (-qDz, -qD2048): paranoia; ridiculously detailed output (excellent for filling a partition).\n"
154 /* one character codes for the available debug options */
155 char par_debug_opts_flags[] = {
156 'v', 'q', 's', 'e', 'r', 'w', 'F', 'f', 'l', 'o', 'p', 'z'
159 /* prefix strings printed with the debug messages of the corresponding type */
160 char *par_debug_opts_prefix[] = {
178 //@node Static function decls, Command-line option parsing routines, Constants
179 //@subsection Static function decls
181 /* -----------------------------------------------------------------------------
182 Static function decls
183 -------------------------------------------------------------------------- */
185 static FILE * /* return NULL on error */
188 int argc, char *argv[],
189 int rts_argc, char *rts_argv[],
190 const char *FILENAME_FMT);
192 static I_ decode(const char *s);
193 static void bad_option(const char *s);
196 static void enable_GranSimLight(void);
197 static void process_gran_option(int arg, int *rts_argc, char *rts_argv[], rtsBool *error);
198 static void set_GranSim_debug_options(nat n);
199 static void help_GranSim_debug_options(nat n);
201 static void process_par_option(int arg, int *rts_argc, char *rts_argv[], rtsBool *error);
202 static void set_par_debug_options(nat n);
203 static void help_par_debug_options(nat n);
206 static void set_debug_options(nat n);
207 static void help_debug_options(nat n);
210 //@node Command-line option parsing routines, GranSim specific options, Static function decls
211 //@subsection Command-line option parsing routines
213 /* -----------------------------------------------------------------------------
214 * Command-line option parsing routines.
215 * ---------------------------------------------------------------------------*/
217 void initRtsFlagsDefaults(void)
219 RtsFlags.GcFlags.statsFile = NULL;
220 RtsFlags.GcFlags.giveStats = NO_GC_STATS;
222 RtsFlags.GcFlags.maxStkSize = (1024 * 1024) / sizeof(W_);
223 RtsFlags.GcFlags.initialStkSize = 1024 / sizeof(W_);
225 RtsFlags.GcFlags.minAllocAreaSize = (256 * 1024) / BLOCK_SIZE;
226 RtsFlags.GcFlags.minOldGenSize = (1024 * 1024) / BLOCK_SIZE;
227 RtsFlags.GcFlags.maxHeapSize = 0; /* off by default */
228 RtsFlags.GcFlags.heapSizeSuggestion = 0; /* none */
229 RtsFlags.GcFlags.pcFreeHeap = 3; /* 3% */
230 RtsFlags.GcFlags.oldGenFactor = 2;
232 /* A hack currently needed for GUM -- HWL */
233 RtsFlags.GcFlags.generations = 1;
234 RtsFlags.GcFlags.steps = 2;
235 RtsFlags.GcFlags.squeezeUpdFrames = rtsFalse;
237 RtsFlags.GcFlags.generations = 2;
238 RtsFlags.GcFlags.steps = 2;
239 RtsFlags.GcFlags.squeezeUpdFrames = rtsTrue;
241 RtsFlags.GcFlags.compact = rtsFalse;
242 RtsFlags.GcFlags.compactThreshold = 30.0;
243 #ifdef RTS_GTK_FRONTPANEL
244 RtsFlags.GcFlags.frontpanel = rtsFalse;
247 #if defined(PROFILING) || defined(PAR)
248 RtsFlags.CcFlags.doCostCentres = 0;
249 #endif /* PROFILING or PAR */
252 RtsFlags.ProfFlags.doHeapProfile = rtsFalse;
253 RtsFlags.ProfFlags.profileFrequency = 20;
254 RtsFlags.ProfFlags.showCCSOnException = rtsFalse;
255 RtsFlags.ProfFlags.modSelector = NULL;
256 RtsFlags.ProfFlags.descrSelector = NULL;
257 RtsFlags.ProfFlags.typeSelector = NULL;
258 RtsFlags.ProfFlags.ccSelector = NULL;
260 RtsFlags.ProfFlags.doHeapProfile = rtsFalse;
263 RtsFlags.ConcFlags.ctxtSwitchTime = CS_MIN_MILLISECS; /* In milliseconds */
266 RtsFlags.ParFlags.nNodes = 1;
270 RtsFlags.ParFlags.ParStats.Full = rtsFalse;
271 RtsFlags.ParFlags.ParStats.Suppressed = rtsFalse;
272 RtsFlags.ParFlags.ParStats.Binary = rtsFalse;
273 RtsFlags.ParFlags.ParStats.Sparks = rtsFalse;
274 RtsFlags.ParFlags.ParStats.Heap = rtsFalse;
275 RtsFlags.ParFlags.ParStats.NewLogfile = rtsFalse;
276 RtsFlags.ParFlags.ParStats.Global = rtsFalse;
278 RtsFlags.ParFlags.outputDisabled = rtsFalse;
280 RtsFlags.ParFlags.doFairScheduling = rtsTrue; /* fair sched by def */
282 RtsFlags.ParFlags.doFairScheduling = rtsFalse; /* unfair sched by def */
284 RtsFlags.ParFlags.packBufferSize = 1024;
285 RtsFlags.ParFlags.thunksToPack = 1; /* 0 ... infinity; */
286 RtsFlags.ParFlags.globalising = 1; /* 0 ... everything */
287 RtsFlags.ParFlags.maxThreads = 1024;
288 RtsFlags.ParFlags.maxFishes = MAX_FISHES;
289 RtsFlags.ParFlags.fishDelay = FISH_DELAY;
292 #if defined(PAR) || defined(SMP)
293 RtsFlags.ParFlags.maxLocalSparks = 4096;
294 #endif /* PAR || SMP */
297 /* ToDo: check defaults for GranSim and GUM */
298 RtsFlags.GcFlags.maxStkSize = (1024 * 1024) / sizeof(W_);
299 RtsFlags.GcFlags.initialStkSize = 1024 / sizeof(W_);
301 RtsFlags.GranFlags.maxThreads = 65536; // refers to mandatory threads
302 RtsFlags.GranFlags.GranSimStats.Full = rtsFalse;
303 RtsFlags.GranFlags.GranSimStats.Suppressed = rtsFalse;
304 RtsFlags.GranFlags.GranSimStats.Binary = rtsFalse;
305 RtsFlags.GranFlags.GranSimStats.Sparks = rtsFalse;
306 RtsFlags.GranFlags.GranSimStats.Heap = rtsFalse;
307 RtsFlags.GranFlags.GranSimStats.NewLogfile = rtsFalse;
308 RtsFlags.GranFlags.GranSimStats.Global = rtsFalse;
310 RtsFlags.GranFlags.packBufferSize = 1024;
311 RtsFlags.GranFlags.packBufferSize_internal = GRANSIM_DEFAULT_PACK_BUFFER_SIZE;
313 RtsFlags.GranFlags.proc = MAX_PROC;
314 RtsFlags.GranFlags.Fishing = rtsFalse;
315 RtsFlags.GranFlags.maxFishes = MAX_FISHES;
316 RtsFlags.GranFlags.time_slice = GRAN_TIME_SLICE;
317 RtsFlags.GranFlags.Light = rtsFalse;
319 RtsFlags.GranFlags.Costs.latency = LATENCY;
320 RtsFlags.GranFlags.Costs.additional_latency = ADDITIONAL_LATENCY;
321 RtsFlags.GranFlags.Costs.fetchtime = FETCHTIME;
322 RtsFlags.GranFlags.Costs.lunblocktime = LOCALUNBLOCKTIME;
323 RtsFlags.GranFlags.Costs.gunblocktime = GLOBALUNBLOCKTIME;
324 RtsFlags.GranFlags.Costs.mpacktime = MSGPACKTIME;
325 RtsFlags.GranFlags.Costs.munpacktime = MSGUNPACKTIME;
326 RtsFlags.GranFlags.Costs.mtidytime = MSGTIDYTIME;
328 RtsFlags.GranFlags.Costs.threadcreatetime = THREADCREATETIME;
329 RtsFlags.GranFlags.Costs.threadqueuetime = THREADQUEUETIME;
330 RtsFlags.GranFlags.Costs.threaddescheduletime = THREADDESCHEDULETIME;
331 RtsFlags.GranFlags.Costs.threadscheduletime = THREADSCHEDULETIME;
332 RtsFlags.GranFlags.Costs.threadcontextswitchtime = THREADCONTEXTSWITCHTIME;
334 RtsFlags.GranFlags.Costs.arith_cost = ARITH_COST;
335 RtsFlags.GranFlags.Costs.branch_cost = BRANCH_COST;
336 RtsFlags.GranFlags.Costs.load_cost = LOAD_COST;
337 RtsFlags.GranFlags.Costs.store_cost = STORE_COST;
338 RtsFlags.GranFlags.Costs.float_cost = FLOAT_COST;
340 RtsFlags.GranFlags.Costs.heapalloc_cost = HEAPALLOC_COST;
342 RtsFlags.GranFlags.Costs.pri_spark_overhead = PRI_SPARK_OVERHEAD;
343 RtsFlags.GranFlags.Costs.pri_sched_overhead = PRI_SCHED_OVERHEAD;
345 RtsFlags.GranFlags.DoFairSchedule = rtsFalse;
346 RtsFlags.GranFlags.DoAsyncFetch = rtsFalse;
347 RtsFlags.GranFlags.DoStealThreadsFirst = rtsFalse;
348 RtsFlags.GranFlags.DoAlwaysCreateThreads = rtsFalse;
349 RtsFlags.GranFlags.DoBulkFetching = rtsFalse;
350 RtsFlags.GranFlags.DoThreadMigration = rtsFalse;
351 RtsFlags.GranFlags.FetchStrategy = 2;
352 RtsFlags.GranFlags.PreferSparksOfLocalNodes = rtsFalse;
353 RtsFlags.GranFlags.DoPrioritySparking = rtsFalse;
354 RtsFlags.GranFlags.DoPriorityScheduling = rtsFalse;
355 RtsFlags.GranFlags.SparkPriority = 0;
356 RtsFlags.GranFlags.SparkPriority2 = 0;
357 RtsFlags.GranFlags.RandomPriorities = rtsFalse;
358 RtsFlags.GranFlags.InversePriorities = rtsFalse;
359 RtsFlags.GranFlags.IgnorePriorities = rtsFalse;
360 RtsFlags.GranFlags.ThunksToPack = 0;
361 RtsFlags.GranFlags.RandomSteal = rtsTrue;
365 RtsFlags.TickyFlags.showTickyStats = rtsFalse;
366 RtsFlags.TickyFlags.tickyFile = NULL;
373 "Usage: <prog> <args> [+RTS <rtsopts> | -RTS <args>] ... --RTS <args>",
375 " +RTS Indicates run time system options follow",
376 " -RTS Indicates program arguments follow",
377 " --RTS Indicates that ALL subsequent arguments will be given to the",
378 " program (including any of these RTS flags)",
380 "The following run time system options are available:",
382 " -? Prints this message and exits; the program is not executed",
384 " -K<size> Sets the maximum stack size (default 1M) Egs: -K32k -K512k",
385 " -k<size> Sets the initial thread stack size (default 1k) Egs: -K4k -K2m",
387 " -A<size> Sets the minimum allocation area size (default 256k) Egs: -A1m -A10k",
388 " -M<size> Sets the maximum heap size (default unlimited) Egs: -M256k -M1G",
389 " -H<size> Sets the minimum heap size (default 0M) Egs: -H24m -H1G",
390 " -m<n> Minimum % of heap which must be available (default 3%)",
391 " -G<n> Number of generations (default: 2)",
392 " -T<n> Number of steps in younger generations (default: 2)",
393 " -c<n> Auto-enable compaction of the oldest generation when live data is",
394 " at least <n>% of the maximum heap size set with -M (default: 30%)",
395 " -c Enable compaction for all major collections",
397 " -t<file> One-line GC statistics (default file: <program>.stat)",
398 " -s<file> Summary GC statistics (with -Sstderr going to stderr)",
399 " -S<file> Detailed GC statistics",
400 #ifdef RTS_GTK_FRONTPANEL
401 " -f Display front panel (requires X11 & GTK+)",
405 " -Z Don't squeeze out update frames on stack overflow",
406 " -B Sound the bell at the start of each garbage collection",
407 #if defined(PROFILING) || defined(PAR)
409 " -px Time/allocation profile (XML) (output file <program>.prof)",
410 " -p Time/allocation profile (output file <program>.prof)",
411 " -P More detailed Time/Allocation profile",
412 " -Pa Give information about *all* cost centres",
414 # if defined(PROFILING)
416 " -hx Heap residency profile (XML) (output file <program>.prof)",
417 " -h<break-down> Heap residency profile (text) (output file <program>.prof)",
418 " break-down: C = cost centre stack (default), M = module",
419 " D = closure description, Y = type description",
420 " A subset of closures may be selected thusly:",
421 " -hc{cc, cc ...} specific cost centre(s) (NOT STACKS!)",
422 " -hm{mod,mod...} all cost centres from the specified modules(s)",
423 " -hd{des,des...} closures with specified closure descriptions",
424 " -hy{typ,typ...} closures with specified type descriptions",
426 " -i<msec> Time between heap samples (msec, default: 20)",
428 " -xc Show current cost centre stack on raising an exception",
430 #endif /* PROFILING or PAR */
431 #if !defined(PROFILING) && defined(DEBUG)
433 " -h<break-down> Debugging Heap residency profile",
434 " (output file <program>.hp)",
435 " break-down: L = closure label (default)",
436 " T = closure type (constructor, thunk etc.)",
439 #if defined(TICKY_TICKY)
440 " -r<file> Produce reduction profiling statistics (with -rstderr for stderr)",
444 " -N<n> Use <n> PVMish processors in parallel (default: 2)",
445 /* NB: the -N<n> is implemented by the driver!! */
447 " -C<secs> Context-switch interval in seconds",
448 " (0 or no argument means switch as often as possible)",
449 " the default is .02 sec; resolution is .02 sec",
451 " -N<n> Use <n> OS threads (default: 1)",
453 #if defined(SMP) || defined(PAR)
454 " -e<size> Size of spark pools (default 100)",
457 " -t<num> Set maximum number of advisory threads per PE (default 32)",
458 " -qP Enable activity profile (output files in ~/<program>*.gr)",
459 " -qQ<size> Set pack-buffer size (default: 1024)",
460 " -qd Turn on PVM-ish debugging",
461 " -qO Disable output for performance measurement",
463 #if defined(SMP) || defined(PAR)
464 " -e<n> Maximum number of outstanding local sparks (default: 4096)",
467 " -d Turn on PVM-ish debugging",
468 " -O Disable output for performance measurement",
470 #if defined(GRAN) /* ToDo: fill in decent Docu here */
471 " -b... All GranSim options start with -b; see GranSim User's Guide for details",
474 "RTS options may also be specified using the GHCRTS environment variable.",
476 "Other RTS options may be available for programs compiled a different way.",
477 "The GHC User's Guide has full details.",
482 static __inline__ rtsBool
483 strequal(const char *a, const char * b)
485 return(strcmp(a, b) == 0);
489 splitRtsFlags(char *s, int *rts_argc, char *rts_argv[])
495 while (isspace(*c1)) { c1++; };
497 while (!isspace(*c2) && *c2 != '\0') { c2++; };
499 if (c1 == c2) { break; }
501 if (*rts_argc < MAX_RTS_ARGS-1) {
503 strncpy(s, c1, c2-c1);
505 rts_argv[(*rts_argc)++] = s;
507 barf("too many RTS arguments (max %d)", MAX_RTS_ARGS-1);
511 } while (*c1 != '\0');
515 setupRtsFlags(int *argc, char *argv[], int *rts_argc, char *rts_argv[])
517 rtsBool error = rtsFalse;
522 /* Remove directory from argv[0] -- default files in current directory */
524 if ((last_slash = (char *) strrchr(argv[0], '/')) != NULL)
525 strcpy(argv[0], last_slash+1);
533 // process arguments from the ghc_rts_opts global variable first.
534 // (arguments from the GHCRTS environment variable and the command
535 // line override these).
537 if (ghc_rts_opts != NULL) {
538 splitRtsFlags(ghc_rts_opts, rts_argc, rts_argv);
542 // process arguments from the GHCRTS environment variable first
543 // (arguments from the command line override these).
545 char *ghc_rts = getenv("GHCRTS");
547 if (ghc_rts != NULL) {
548 splitRtsFlags(ghc_rts, rts_argc, rts_argv);
552 // Split arguments (argv) into PGM (argv) and RTS (rts_argv) parts
553 // argv[0] must be PGM argument -- leave in argv
555 for (mode = PGM; arg < total_arg; arg++) {
556 // The '--RTS' argument disables all future +RTS ... -RTS processing.
557 if (strequal("--RTS", argv[arg])) {
561 // The '--' argument is passed through to the program, but
562 // disables all further +RTS ... -RTS processing.
563 else if (strequal("--", argv[arg])) {
566 else if (strequal("+RTS", argv[arg])) {
569 else if (strequal("-RTS", argv[arg])) {
572 else if (mode == RTS && *rts_argc < MAX_RTS_ARGS-1) {
573 rts_argv[(*rts_argc)++] = argv[arg];
575 else if (mode == PGM) {
576 argv[(*argc)++] = argv[arg];
579 barf("too many RTS arguments (max %d)", MAX_RTS_ARGS-1);
582 // process remaining program arguments
583 for (; arg < total_arg; arg++) {
584 argv[(*argc)++] = argv[arg];
586 argv[*argc] = (char *) 0;
587 rts_argv[*rts_argc] = (char *) 0;
589 // Process RTS (rts_argv) part: mainly to determine statsfile
590 for (arg = 0; arg < *rts_argc; arg++) {
591 if (rts_argv[arg][0] != '-') {
593 prog_belch("unexpected RTS argument: %s", rts_argv[arg]);
597 switch(rts_argv[arg][1]) {
599 /* process: general args, then PROFILING-only ones,
600 then CONCURRENT-only, PARallel-only, GRAN-only,
601 TICKY-only (same order as defined in RtsFlags.lh);
602 within those groups, mostly in case-insensitive
604 Final group is x*, which allows for more options.
608 # define TICKY_BUILD_ONLY(x) x
610 # define TICKY_BUILD_ONLY(x) \
611 prog_belch("GHC not built for: ticky-ticky stats"); \
615 #if defined(PROFILING)
616 # define COST_CENTRE_USING_BUILD_ONLY(x) x
618 # define COST_CENTRE_USING_BUILD_ONLY(x) \
619 prog_belch("GHC not built for: -prof or -parallel"); \
624 # define PROFILING_BUILD_ONLY(x) x
626 # define PROFILING_BUILD_ONLY(x) \
627 prog_belch("GHC not built for: -prof"); \
632 # define SMP_BUILD_ONLY(x) x
634 # define SMP_BUILD_ONLY(x) \
635 prog_belch("GHC not built for: -smp"); \
640 # define PAR_BUILD_ONLY(x) x
642 # define PAR_BUILD_ONLY(x) \
643 prog_belch("GHC not built for: -parallel"); \
647 #if defined(SMP) || defined(PAR)
648 # define PAR_OR_SMP_BUILD_ONLY(x) x
650 # define PAR_OR_SMP_BUILD_ONLY(x) \
651 prog_belch("GHC not built for: -parallel or -smp"); \
656 # define GRAN_BUILD_ONLY(x) x
658 # define GRAN_BUILD_ONLY(x) \
659 prog_belch("GHC not built for: -gransim"); \
663 /* =========== GENERAL ========================== */
669 RtsFlags.GcFlags.minAllocAreaSize
670 = decode(rts_argv[arg]+2) / BLOCK_SIZE;
671 if (RtsFlags.GcFlags.minAllocAreaSize <= 0) {
672 bad_option(rts_argv[arg]);
677 RtsFlags.GcFlags.ringBell = rtsTrue;
681 if (rts_argv[arg][2] != '\0') {
682 RtsFlags.GcFlags.compactThreshold =
683 atof(rts_argv[arg]+2);
685 RtsFlags.GcFlags.compact = rtsTrue;
690 RtsFlags.GcFlags.oldGenFactor = atof(rts_argv[arg]+2);
692 if (RtsFlags.GcFlags.oldGenFactor < 0)
693 bad_option( rts_argv[arg] );
698 if (isdigit(rts_argv[arg][2])) {/* Set all debugging options in one */
699 /* hack warning: interpret the flags as a binary number */
700 nat n = decode(rts_argv[arg]+2);
701 set_debug_options(n);
707 RtsFlags.GcFlags.maxStkSize =
708 decode(rts_argv[arg]+2) / sizeof(W_);
710 if (RtsFlags.GcFlags.maxStkSize == 0)
711 bad_option( rts_argv[arg] );
715 RtsFlags.GcFlags.initialStkSize =
716 decode(rts_argv[arg]+2) / sizeof(W_);
718 if (RtsFlags.GcFlags.initialStkSize == 0)
719 bad_option( rts_argv[arg] );
723 RtsFlags.GcFlags.maxHeapSize =
724 decode(rts_argv[arg]+2) / BLOCK_SIZE;
725 /* user give size in *bytes* but "maxHeapSize" is in *blocks* */
727 if (RtsFlags.GcFlags.maxHeapSize <= 0) {
728 bad_option(rts_argv[arg]);
733 RtsFlags.GcFlags.pcFreeHeap = atof(rts_argv[arg]+2);
735 if (RtsFlags.GcFlags.pcFreeHeap < 0 ||
736 RtsFlags.GcFlags.pcFreeHeap > 100)
737 bad_option( rts_argv[arg] );
741 RtsFlags.GcFlags.generations = decode(rts_argv[arg]+2);
742 if (RtsFlags.GcFlags.generations < 1) {
743 bad_option(rts_argv[arg]);
748 RtsFlags.GcFlags.steps = decode(rts_argv[arg]+2);
749 if (RtsFlags.GcFlags.steps < 1) {
750 bad_option(rts_argv[arg]);
755 RtsFlags.GcFlags.heapSizeSuggestion =
756 decode(rts_argv[arg]+2) / BLOCK_SIZE;
758 if (RtsFlags.GcFlags.heapSizeSuggestion <= 0) {
759 bad_option(rts_argv[arg]);
763 #ifdef RTS_GTK_FRONTPANEL
765 RtsFlags.GcFlags.frontpanel = rtsTrue;
770 RtsFlags.GcFlags.giveStats = VERBOSE_GC_STATS;
774 RtsFlags.GcFlags.giveStats = SUMMARY_GC_STATS;
778 RtsFlags.GcFlags.giveStats = ONELINE_GC_STATS;
783 /* Opening all those files would almost certainly fail... */
784 // RtsFlags.ParFlags.ParStats.Full = rtsTrue;
785 RtsFlags.GcFlags.statsFile = stderr; /* temporary; ToDo: rm */
787 RtsFlags.GcFlags.statsFile
788 = open_stats_file(arg, *argc, argv,
789 *rts_argc, rts_argv, STAT_FILENAME_FMT);
791 if (RtsFlags.GcFlags.statsFile == NULL) error = rtsTrue;
796 RtsFlags.GcFlags.squeezeUpdFrames = rtsFalse;
799 /* =========== PROFILING ========================== */
801 case 'P': /* detailed cost centre profiling (time/alloc) */
802 case 'p': /* cost centre profiling (time/alloc) */
803 COST_CENTRE_USING_BUILD_ONLY(
804 switch (rts_argv[arg][2]) {
806 RtsFlags.CcFlags.doCostCentres = COST_CENTRES_XML;
809 RtsFlags.CcFlags.doCostCentres = COST_CENTRES_ALL;
812 if (rts_argv[arg][1] == 'P') {
813 RtsFlags.CcFlags.doCostCentres =
814 COST_CENTRES_VERBOSE;
816 RtsFlags.CcFlags.doCostCentres =
817 COST_CENTRES_SUMMARY;
823 case 'h': /* serial heap profile */
824 #if !defined(PROFILING) && defined(DEBUG)
825 switch (rts_argv[arg][2]) {
828 RtsFlags.ProfFlags.doHeapProfile = HEAP_BY_INFOPTR;
831 RtsFlags.ProfFlags.doHeapProfile = HEAP_BY_CLOSURE_TYPE;
834 prog_belch("invalid heap profile option: %s",rts_argv[arg]);
838 PROFILING_BUILD_ONLY(
839 switch (rts_argv[arg][2]) {
842 RtsFlags.ProfFlags.doHeapProfile = HEAP_BY_CCS;
845 RtsFlags.ProfFlags.doHeapProfile = HEAP_BY_MOD;
848 RtsFlags.ProfFlags.doHeapProfile = HEAP_BY_DESCR;
851 RtsFlags.ProfFlags.doHeapProfile = HEAP_BY_TYPE;
853 case 'c': /* cost centre label select */
854 case 'm': /* cost centre module select */
855 case 'd': /* closure descr select */
856 case 'y': /* closure type select */
857 {char *left = strchr(rts_argv[arg], '{');
858 char *right = strrchr(rts_argv[arg], '}');
859 if (! left || ! right ||
860 strrchr(rts_argv[arg], '{') != left ||
861 strchr(rts_argv[arg], '}') != right) {
863 "Invalid heap profiling selection bracketing\n %s\n",
868 switch (rts_argv[arg][2]) {
869 case 'c': /* cost centre label select */
870 RtsFlags.ProfFlags.ccSelector = left + 1;
872 case 'm': /* cost centre module select */
873 RtsFlags.ProfFlags.modSelector = left + 1;
875 case 'd': /* closure descr select */
876 RtsFlags.ProfFlags.descrSelector = left + 1;
878 case 'y': /* closure type select */
879 RtsFlags.ProfFlags.typeSelector = left + 1;
886 prog_belch("invalid heap profile option: %s",rts_argv[arg]);
894 #if defined(PROFILING)
895 case 'i': /* heap sample interval */
896 if (rts_argv[arg][2] == '\0') {
901 /* Convert to milliseconds */
902 cst = (I_) ((atof(rts_argv[arg]+2) * 1000));
903 cst = (cst / CS_MIN_MILLISECS) * CS_MIN_MILLISECS;
904 if (cst != 0 && cst < CS_MIN_MILLISECS)
905 cst = CS_MIN_MILLISECS;
907 RtsFlags.ProfFlags.profileFrequency = cst;
914 /* =========== CONCURRENT ========================= */
915 case 'C': /* context switch interval */
916 if (rts_argv[arg][2] == '\0')
917 RtsFlags.ConcFlags.ctxtSwitchTime = 0;
921 /* Convert to milliseconds */
922 cst = (I_) ((atof(rts_argv[arg]+2) * 1000));
923 cst = (cst / CS_MIN_MILLISECS) * CS_MIN_MILLISECS;
924 if (cst != 0 && cst < CS_MIN_MILLISECS)
925 cst = CS_MIN_MILLISECS;
927 RtsFlags.ConcFlags.ctxtSwitchTime = cst;
934 if (rts_argv[arg][2] != '\0') {
935 RtsFlags.ParFlags.nNodes
936 = strtol(rts_argv[arg]+2, (char **) NULL, 10);
937 if (RtsFlags.ParFlags.nNodes <= 0) {
938 prog_belch("bad value for -N");
944 /* =========== PARALLEL =========================== */
946 PAR_OR_SMP_BUILD_ONLY(
947 if (rts_argv[arg][2] != '\0') {
948 RtsFlags.ParFlags.maxLocalSparks
949 = strtol(rts_argv[arg]+2, (char **) NULL, 10);
950 if (RtsFlags.ParFlags.maxLocalSparks <= 0) {
951 prog_belch("bad value for -e");
959 process_par_option(arg, rts_argc, rts_argv, &error);
962 /* =========== GRAN =============================== */
966 process_gran_option(arg, rts_argc, rts_argv, &error);
969 /* =========== TICKY ============================== */
971 case 'r': /* Basic profiling stats */
974 RtsFlags.TickyFlags.showTickyStats = rtsTrue;
975 RtsFlags.TickyFlags.tickyFile
976 = open_stats_file(arg, *argc, argv,
977 *rts_argc, rts_argv, TICKY_FILENAME_FMT);
979 if (RtsFlags.TickyFlags.tickyFile == NULL) error = rtsTrue;
982 /* =========== EXTENDED OPTIONS =================== */
984 case 'x': /* Extend the argument space */
985 switch(rts_argv[arg][2]) {
987 prog_belch("incomplete RTS option: %s",rts_argv[arg]);
991 case 'c': /* Debugging tool: show current cost centre on an exception */
992 PROFILING_BUILD_ONLY(
993 RtsFlags.ProfFlags.showCCSOnException = rtsTrue;
996 /* The option prefix '-xx' is reserved for future extension. KSW 1999-11. */
999 prog_belch("unknown RTS option: %s",rts_argv[arg]);
1003 break; /* defensive programming */
1005 /* =========== OH DEAR ============================ */
1007 prog_belch("unknown RTS option: %s",rts_argv[arg]);
1017 for (p = usage_text; *p; p++)
1019 stg_exit(EXIT_FAILURE);
1025 //@node GranSim specific options, Aux fcts, Command-line option parsing routines
1026 //@subsection GranSim specific options
1029 enable_GranSimLight(void) {
1031 fprintf(stderr,"GrAnSim Light enabled (infinite number of processors; 0 communication costs)\n");
1032 RtsFlags.GranFlags.Light=rtsTrue;
1033 RtsFlags.GranFlags.Costs.latency =
1034 RtsFlags.GranFlags.Costs.fetchtime =
1035 RtsFlags.GranFlags.Costs.additional_latency =
1036 RtsFlags.GranFlags.Costs.gunblocktime =
1037 RtsFlags.GranFlags.Costs.lunblocktime =
1038 RtsFlags.GranFlags.Costs.threadcreatetime =
1039 RtsFlags.GranFlags.Costs.threadqueuetime =
1040 RtsFlags.GranFlags.Costs.threadscheduletime =
1041 RtsFlags.GranFlags.Costs.threaddescheduletime =
1042 RtsFlags.GranFlags.Costs.threadcontextswitchtime = 0;
1044 RtsFlags.GranFlags.Costs.mpacktime =
1045 RtsFlags.GranFlags.Costs.munpacktime = 0;
1047 RtsFlags.GranFlags.DoFairSchedule = rtsTrue;
1048 RtsFlags.GranFlags.DoAsyncFetch = rtsFalse;
1049 RtsFlags.GranFlags.DoAlwaysCreateThreads = rtsTrue;
1050 /* FetchStrategy is irrelevant in GrAnSim-Light */
1052 /* GrAnSim Light often creates an abundance of parallel threads,
1053 each with its own stack etc. Therefore, it's in general a good
1054 idea to use small stack chunks (use the -o<size> option to
1057 // RtsFlags.ConcFlags.stkChunkSize = 100;
1059 RtsFlags.GranFlags.proc = 1;
1063 process_gran_option(int arg, int *rts_argc, char *rts_argv[], rtsBool *error)
1065 if (rts_argv[arg][1] != 'b') /* All GranSim options start with -b */
1068 /* or a ridiculously idealised simulator */
1069 if(strcmp((rts_argv[arg]+2),"oring")==0) {
1070 RtsFlags.GranFlags.Costs.latency =
1071 RtsFlags.GranFlags.Costs.fetchtime =
1072 RtsFlags.GranFlags.Costs.additional_latency =
1073 RtsFlags.GranFlags.Costs.gunblocktime =
1074 RtsFlags.GranFlags.Costs.lunblocktime =
1075 RtsFlags.GranFlags.Costs.threadcreatetime =
1076 RtsFlags.GranFlags.Costs.threadqueuetime =
1077 RtsFlags.GranFlags.Costs.threadscheduletime =
1078 RtsFlags.GranFlags.Costs.threaddescheduletime =
1079 RtsFlags.GranFlags.Costs.threadcontextswitchtime = 0;
1081 RtsFlags.GranFlags.Costs.mpacktime =
1082 RtsFlags.GranFlags.Costs.munpacktime = 0;
1084 RtsFlags.GranFlags.Costs.arith_cost =
1085 RtsFlags.GranFlags.Costs.float_cost =
1086 RtsFlags.GranFlags.Costs.load_cost =
1087 RtsFlags.GranFlags.Costs.store_cost =
1088 RtsFlags.GranFlags.Costs.branch_cost = 0;
1090 RtsFlags.GranFlags.Costs.heapalloc_cost = 1;
1092 /* ++RtsFlags.GranFlags.DoFairSchedule; */
1093 RtsFlags.GranFlags.DoStealThreadsFirst = rtsTrue; /* -bZ */
1094 RtsFlags.GranFlags.DoThreadMigration = rtsTrue; /* -bM */
1095 RtsFlags.GranFlags.GranSimStats.Full = rtsTrue; /* -bP */
1099 /* or a somewhat idealised simulator */
1100 if(strcmp((rts_argv[arg]+2),"onzo")==0) {
1101 RtsFlags.GranFlags.Costs.latency =
1102 RtsFlags.GranFlags.Costs.fetchtime =
1103 RtsFlags.GranFlags.Costs.additional_latency =
1104 RtsFlags.GranFlags.Costs.gunblocktime =
1105 RtsFlags.GranFlags.Costs.lunblocktime =
1106 RtsFlags.GranFlags.Costs.threadcreatetime =
1107 RtsFlags.GranFlags.Costs.threadqueuetime =
1108 RtsFlags.GranFlags.Costs.threadscheduletime =
1109 RtsFlags.GranFlags.Costs.threaddescheduletime =
1110 RtsFlags.GranFlags.Costs.threadcontextswitchtime = 0;
1112 RtsFlags.GranFlags.Costs.mpacktime =
1113 RtsFlags.GranFlags.Costs.munpacktime = 0;
1115 RtsFlags.GranFlags.Costs.heapalloc_cost = 1;
1117 /* RtsFlags.GranFlags.DoFairSchedule = rtsTrue; */ /* -b-R */
1118 /* RtsFlags.GranFlags.DoStealThreadsFirst = rtsTrue; */ /* -b-T */
1119 RtsFlags.GranFlags.DoAsyncFetch = rtsTrue; /* -bZ */
1120 RtsFlags.GranFlags.DoThreadMigration = rtsTrue; /* -bM */
1121 RtsFlags.GranFlags.GranSimStats.Full = rtsTrue; /* -bP */
1122 # if defined(GRAN_CHECK) && defined(GRAN)
1123 RtsFlags.GranFlags.Debug.event_stats = rtsTrue; /* print event statistics */
1128 /* Communication and task creation cost parameters */
1129 switch(rts_argv[arg][2]) {
1131 IgnoreYields = rtsTrue; // HWL HACK
1135 enable_GranSimLight(); /* set flags for GrAnSim-Light mode */
1139 if (rts_argv[arg][3] != '\0')
1141 RtsFlags.GranFlags.Costs.gunblocktime =
1142 RtsFlags.GranFlags.Costs.latency = decode(rts_argv[arg]+3);
1143 RtsFlags.GranFlags.Costs.fetchtime = 2*RtsFlags.GranFlags.Costs.latency;
1146 RtsFlags.GranFlags.Costs.latency = LATENCY;
1150 if (rts_argv[arg][3] != '\0')
1151 RtsFlags.GranFlags.Costs.additional_latency = decode(rts_argv[arg]+3);
1153 RtsFlags.GranFlags.Costs.additional_latency = ADDITIONAL_LATENCY;
1157 if (rts_argv[arg][3] != '\0')
1158 RtsFlags.GranFlags.Costs.mpacktime = decode(rts_argv[arg]+3);
1160 RtsFlags.GranFlags.Costs.mpacktime = MSGPACKTIME;
1164 if (rts_argv[arg][3] != '\0')
1165 RtsFlags.GranFlags.Costs.mtidytime = decode(rts_argv[arg]+3);
1167 RtsFlags.GranFlags.Costs.mtidytime = 0;
1171 if (rts_argv[arg][3] != '\0')
1172 RtsFlags.GranFlags.Costs.munpacktime = decode(rts_argv[arg]+3);
1174 RtsFlags.GranFlags.Costs.munpacktime = MSGUNPACKTIME;
1178 if (rts_argv[arg][3] != '\0')
1179 RtsFlags.GranFlags.Costs.fetchtime = decode(rts_argv[arg]+3);
1181 RtsFlags.GranFlags.Costs.fetchtime = FETCHTIME;
1185 if (rts_argv[arg][3] != '\0')
1186 RtsFlags.GranFlags.Costs.gunblocktime = decode(rts_argv[arg]+3);
1188 RtsFlags.GranFlags.Costs.gunblocktime = GLOBALUNBLOCKTIME;
1192 if (rts_argv[arg][3] != '\0')
1193 RtsFlags.GranFlags.Costs.lunblocktime = decode(rts_argv[arg]+3);
1195 RtsFlags.GranFlags.Costs.lunblocktime = LOCALUNBLOCKTIME;
1198 /* Thread-related metrics */
1200 if (rts_argv[arg][3] != '\0')
1201 RtsFlags.GranFlags.Costs.threadcreatetime = decode(rts_argv[arg]+3);
1203 RtsFlags.GranFlags.Costs.threadcreatetime = THREADCREATETIME;
1207 if (rts_argv[arg][3] != '\0')
1208 RtsFlags.GranFlags.Costs.threadqueuetime = decode(rts_argv[arg]+3);
1210 RtsFlags.GranFlags.Costs.threadqueuetime = THREADQUEUETIME;
1214 if (rts_argv[arg][3] != '\0')
1215 RtsFlags.GranFlags.Costs.threadscheduletime = decode(rts_argv[arg]+3);
1217 RtsFlags.GranFlags.Costs.threadscheduletime = THREADSCHEDULETIME;
1219 RtsFlags.GranFlags.Costs.threadcontextswitchtime = RtsFlags.GranFlags.Costs.threadscheduletime
1220 + RtsFlags.GranFlags.Costs.threaddescheduletime;
1224 if (rts_argv[arg][3] != '\0')
1225 RtsFlags.GranFlags.Costs.threaddescheduletime = decode(rts_argv[arg]+3);
1227 RtsFlags.GranFlags.Costs.threaddescheduletime = THREADDESCHEDULETIME;
1229 RtsFlags.GranFlags.Costs.threadcontextswitchtime = RtsFlags.GranFlags.Costs.threadscheduletime
1230 + RtsFlags.GranFlags.Costs.threaddescheduletime;
1233 /* Instruction Cost Metrics */
1235 if (rts_argv[arg][3] != '\0')
1236 RtsFlags.GranFlags.Costs.arith_cost = decode(rts_argv[arg]+3);
1238 RtsFlags.GranFlags.Costs.arith_cost = ARITH_COST;
1242 if (rts_argv[arg][3] != '\0')
1243 RtsFlags.GranFlags.Costs.float_cost = decode(rts_argv[arg]+3);
1245 RtsFlags.GranFlags.Costs.float_cost = FLOAT_COST;
1249 if (rts_argv[arg][3] != '\0')
1250 RtsFlags.GranFlags.Costs.branch_cost = decode(rts_argv[arg]+3);
1252 RtsFlags.GranFlags.Costs.branch_cost = BRANCH_COST;
1256 if (rts_argv[arg][3] != '\0')
1257 RtsFlags.GranFlags.Costs.load_cost = decode(rts_argv[arg]+3);
1259 RtsFlags.GranFlags.Costs.load_cost = LOAD_COST;
1263 if (rts_argv[arg][3] != '\0')
1264 RtsFlags.GranFlags.Costs.store_cost = decode(rts_argv[arg]+3);
1266 RtsFlags.GranFlags.Costs.store_cost = STORE_COST;
1270 if (rts_argv[arg][3] != '\0')
1271 RtsFlags.GranFlags.Costs.heapalloc_cost = decode(rts_argv[arg]+3);
1273 RtsFlags.GranFlags.Costs.heapalloc_cost = 0;
1277 RtsFlags.GranFlags.DoAsyncFetch = rtsTrue;
1278 if (rts_argv[arg][3] != '\0')
1279 RtsFlags.GranFlags.FetchStrategy = decode(rts_argv[arg]+3);
1281 RtsFlags.GranFlags.FetchStrategy = 2;
1282 if (RtsFlags.GranFlags.FetchStrategy == 0)
1283 RtsFlags.GranFlags.DoAsyncFetch = rtsFalse;
1286 case 'K': /* sort overhead (per elem in spark list) */
1287 if (rts_argv[arg][3] != '\0')
1288 RtsFlags.GranFlags.Costs.pri_spark_overhead = decode(rts_argv[arg]+3);
1290 RtsFlags.GranFlags.Costs.pri_spark_overhead = PRI_SPARK_OVERHEAD;
1291 fprintf(stderr,"Overhead for pri spark: %d (per elem).\n",
1292 RtsFlags.GranFlags.Costs.pri_spark_overhead);
1295 case 'O': /* sort overhead (per elem in spark list) */
1296 if (rts_argv[arg][3] != '\0')
1297 RtsFlags.GranFlags.Costs.pri_sched_overhead = decode(rts_argv[arg]+3);
1299 RtsFlags.GranFlags.Costs.pri_sched_overhead = PRI_SCHED_OVERHEAD;
1300 fprintf(stderr,"Overhead for pri sched: %d (per elem).\n",
1301 RtsFlags.GranFlags.Costs.pri_sched_overhead);
1304 /* General Parameters */
1306 if (rts_argv[arg][3] != '\0')
1308 RtsFlags.GranFlags.proc = decode(rts_argv[arg]+3);
1309 if (RtsFlags.GranFlags.proc==0) {
1310 enable_GranSimLight(); /* set flags for GrAnSim-Light mode */
1311 } else if (RtsFlags.GranFlags.proc > MAX_PROC ||
1312 RtsFlags.GranFlags.proc < 1)
1314 fprintf(stderr,"setupRtsFlags: no more than %u processors
1321 RtsFlags.GranFlags.proc = MAX_PROC;
1325 RtsFlags.GranFlags.Fishing = rtsTrue;
1326 if (rts_argv[arg][3] != '\0')
1327 RtsFlags.GranFlags.maxFishes = decode(rts_argv[arg]+3);
1329 RtsFlags.GranFlags.maxFishes = MAX_FISHES;
1333 if (rts_argv[arg][3] != '\0')
1334 RtsFlags.GranFlags.time_slice = decode(rts_argv[arg]+3);
1336 RtsFlags.GranFlags.time_slice = GRAN_TIME_SLICE;
1340 RtsFlags.GranFlags.DoAlwaysCreateThreads=rtsTrue;
1341 RtsFlags.GranFlags.DoThreadMigration=rtsTrue;
1345 fprintf(stderr,"Bulk fetching enabled.\n");
1346 RtsFlags.GranFlags.DoBulkFetching=rtsTrue;
1350 fprintf(stderr,"Thread migration enabled.\n");
1351 RtsFlags.GranFlags.DoThreadMigration=rtsTrue;
1355 fprintf(stderr,"Fair Scheduling enabled.\n");
1356 RtsFlags.GranFlags.DoFairSchedule=rtsTrue;
1360 fprintf(stderr,"Priority Scheduling enabled.\n");
1361 RtsFlags.GranFlags.DoPriorityScheduling=rtsTrue;
1365 RtsFlags.GranFlags.DoStealThreadsFirst=rtsTrue;
1366 RtsFlags.GranFlags.DoThreadMigration=rtsTrue;
1370 RtsFlags.GranFlags.DoAsyncFetch=rtsTrue;
1374 /* RtsFlags.GranFlags.SimplifiedFetch=rtsTrue; */
1378 RtsFlags.GranFlags.PreferSparksOfLocalNodes=rtsTrue;
1382 RtsFlags.GranFlags.GranSimStats.Binary=rtsTrue;
1386 /* format is -bP<c> where <c> is one char describing kind of profile */
1387 RtsFlags.GranFlags.GranSimStats.Full = rtsTrue;
1388 switch(rts_argv[arg][3]) {
1389 case '\0': break; // nothing special, just an ordinary profile
1390 case '0': RtsFlags.GranFlags.GranSimStats.Suppressed = rtsTrue;
1392 case 'b': RtsFlags.GranFlags.GranSimStats.Binary = rtsTrue;
1394 case 's': RtsFlags.GranFlags.GranSimStats.Sparks = rtsTrue;
1396 case 'h': RtsFlags.GranFlags.GranSimStats.Heap = rtsTrue;
1398 case 'n': RtsFlags.GranFlags.GranSimStats.NewLogfile = rtsTrue;
1400 case 'g': RtsFlags.GranFlags.GranSimStats.Global = rtsTrue;
1402 default: barf("Unknown option -bP%c", rts_argv[arg][3]);
1407 RtsFlags.GranFlags.GranSimStats.Sparks=rtsTrue;
1411 RtsFlags.GranFlags.GranSimStats.Heap=rtsTrue;
1414 case 'Y': /* syntax: -bY<n>[,<n>] n ... pos int */
1415 if (rts_argv[arg][3] != '\0') {
1418 arg0 = rts_argv[arg]+3;
1419 if ((tmp = strstr(arg0,","))==NULL) {
1420 RtsFlags.GranFlags.SparkPriority = decode(arg0);
1421 fprintf(stderr,"SparkPriority: %u.\n",RtsFlags.GranFlags.SparkPriority);
1424 RtsFlags.GranFlags.SparkPriority = decode(arg0);
1425 RtsFlags.GranFlags.SparkPriority2 = decode(tmp);
1426 fprintf(stderr,"SparkPriority: %u.\n",
1427 RtsFlags.GranFlags.SparkPriority);
1428 fprintf(stderr,"SparkPriority2:%u.\n",
1429 RtsFlags.GranFlags.SparkPriority2);
1430 if (RtsFlags.GranFlags.SparkPriority2 <
1431 RtsFlags.GranFlags.SparkPriority) {
1432 fprintf(stderr,"WARNING: 2nd pri < main pri (%u<%u); 2nd pri has no effect\n",
1433 RtsFlags.GranFlags.SparkPriority2,
1434 RtsFlags.GranFlags.SparkPriority);
1438 /* plain pri spark is now invoked with -bX
1439 RtsFlags.GranFlags.DoPrioritySparking = 1;
1440 fprintf(stderr,"PrioritySparking.\n");
1446 if (rts_argv[arg][3] != '\0') {
1447 RtsFlags.GranFlags.ThunksToPack = decode(rts_argv[arg]+3);
1449 RtsFlags.GranFlags.ThunksToPack = 1;
1451 fprintf(stderr,"Thunks To Pack in one packet: %u.\n",
1452 RtsFlags.GranFlags.ThunksToPack);
1456 RtsFlags.GranFlags.RandomSteal = rtsFalse;
1457 fprintf(stderr,"Deterministic mode (no random stealing)\n");
1460 /* The following class of options contains eXperimental */
1461 /* features in connection with exploiting granularity */
1462 /* information. I.e. if -bY is chosen these options */
1463 /* tell the RTS what to do with the supplied info --HWL */
1466 if (rts_argv[arg][3] != '\0') {
1467 RtsFlags.GranFlags.packBufferSize_internal = decode(rts_argv[arg]+3);
1469 RtsFlags.GranFlags.packBufferSize_internal = GRANSIM_DEFAULT_PACK_BUFFER_SIZE;
1471 fprintf(stderr,"Size of GranSim internal pack buffer: %u.\n",
1472 RtsFlags.GranFlags.packBufferSize_internal);
1476 switch(rts_argv[arg][3]) {
1479 RtsFlags.GranFlags.DoPrioritySparking = 1;
1480 fprintf(stderr,"Priority Sparking with Normal Priorities.\n");
1481 RtsFlags.GranFlags.InversePriorities = rtsFalse;
1482 RtsFlags.GranFlags.RandomPriorities = rtsFalse;
1483 RtsFlags.GranFlags.IgnorePriorities = rtsFalse;
1487 RtsFlags.GranFlags.DoPrioritySparking = 1;
1488 fprintf(stderr,"Priority Sparking with Inverse Priorities.\n");
1489 RtsFlags.GranFlags.InversePriorities++;
1493 RtsFlags.GranFlags.DoPrioritySparking = 1;
1494 fprintf(stderr,"Priority Sparking with Random Priorities.\n");
1495 RtsFlags.GranFlags.RandomPriorities++;
1499 RtsFlags.GranFlags.DoPrioritySparking = 1;
1500 fprintf(stderr,"Priority Sparking with No Priorities.\n");
1501 RtsFlags.GranFlags.IgnorePriorities++;
1505 bad_option( rts_argv[arg] );
1511 switch(rts_argv[arg][3]) {
1514 RtsFlags.GranFlags.DoAlwaysCreateThreads=rtsFalse;
1515 RtsFlags.GranFlags.DoThreadMigration=rtsFalse;
1519 RtsFlags.GranFlags.DoBulkFetching=rtsFalse;
1523 RtsFlags.GranFlags.DoThreadMigration=rtsFalse;
1527 RtsFlags.GranFlags.DoFairSchedule=rtsFalse;
1531 RtsFlags.GranFlags.DoStealThreadsFirst=rtsFalse;
1532 RtsFlags.GranFlags.DoThreadMigration=rtsFalse;
1536 RtsFlags.GranFlags.DoAsyncFetch=rtsFalse;
1540 RtsFlags.GranFlags.PreferSparksOfLocalNodes=rtsFalse;
1544 RtsFlags.GranFlags.GranSimStats.Suppressed=rtsTrue;
1548 RtsFlags.GranFlags.GranSimStats.Sparks=rtsFalse;
1552 RtsFlags.GranFlags.GranSimStats.Heap=rtsFalse;
1556 RtsFlags.GranFlags.GranSimStats.Binary=rtsFalse;
1560 RtsFlags.GranFlags.DoPrioritySparking = rtsFalse;
1564 RtsFlags.GranFlags.DoPrioritySparking = rtsFalse;
1565 RtsFlags.GranFlags.SparkPriority = rtsFalse;
1569 RtsFlags.GranFlags.DoPriorityScheduling = rtsFalse;
1573 RtsFlags.GranFlags.RandomSteal = rtsFalse;
1577 bad_option( rts_argv[arg] );
1582 # if defined(GRAN_CHECK) && defined(GRAN)
1584 switch(rts_argv[arg][3]) {
1585 case 'Q': /* Set pack buffer size (same as 'Q' in GUM) */
1586 if (rts_argv[arg][4] != '\0') {
1587 RtsFlags.GranFlags.packBufferSize = decode(rts_argv[arg]+4);
1588 fprintf(stderr,"Pack buffer size: %d\n",
1589 RtsFlags.GranFlags.packBufferSize);
1591 fprintf(stderr, "setupRtsFlags: missing size of PackBuffer (for -Q)\n");
1597 if (isdigit(rts_argv[arg][3])) {/* Set all debugging options in one */
1598 /* hack warning: interpret the flags as a binary number */
1599 nat n = decode(rts_argv[arg]+3);
1600 set_GranSim_debug_options(n);
1603 for (i=0; i<=MAX_GRAN_DEBUG_OPTION; i++)
1604 if (rts_argv[arg][3] == gran_debug_opts_flags[i])
1607 if (i==MAX_GRAN_DEBUG_OPTION+1) {
1608 fprintf(stderr, "Valid GranSim debug options are:\n");
1609 help_GranSim_debug_options(MAX_GRAN_DEBUG_MASK);
1610 bad_option( rts_argv[arg] );
1611 } else { // flag found; now set it
1612 set_GranSim_debug_options(GRAN_DEBUG_MASK(i)); // 2^i
1618 case 'e': /* event trace; also -bD1 */
1619 fprintf(stderr,"DEBUG: event_trace; printing event trace.\n");
1620 RtsFlags.GranFlags.Debug.event_trace = rtsTrue;
1621 /* RtsFlags.GranFlags.event_trace=rtsTrue; */
1624 case 'E': /* event statistics; also -bD2 */
1625 fprintf(stderr,"DEBUG: event_stats; printing event statistics.\n");
1626 RtsFlags.GranFlags.Debug.event_stats = rtsTrue;
1627 /* RtsFlags.GranFlags.Debug |= 0x20; print event statistics */
1630 case 'f': /* thunkStealing; also -bD4 */
1631 fprintf(stderr,"DEBUG: thunkStealing; printing forwarding of FETCHNODES.\n");
1632 RtsFlags.GranFlags.Debug.thunkStealing = rtsTrue;
1633 /* RtsFlags.GranFlags.Debug |= 0x2; print fwd messages */
1636 case 'z': /* blockOnFetch; also -bD8 */
1637 fprintf(stderr,"DEBUG: blockOnFetch; check for blocked on fetch.\n");
1638 RtsFlags.GranFlags.Debug.blockOnFetch = rtsTrue;
1639 /* RtsFlags.GranFlags.Debug |= 0x4; debug non-reschedule-on-fetch */
1642 case 't': /* blockOnFetch_sanity; also -bD16 */
1643 fprintf(stderr,"DEBUG: blockOnFetch_sanity; check for TSO asleep on fetch.\n");
1644 RtsFlags.GranFlags.Debug.blockOnFetch_sanity = rtsTrue;
1645 /* RtsFlags.GranFlags.Debug |= 0x10; debug TSO asleep for fetch */
1648 case 'S': /* priSpark; also -bD32 */
1649 fprintf(stderr,"DEBUG: priSpark; priority sparking.\n");
1650 RtsFlags.GranFlags.Debug.priSpark = rtsTrue;
1653 case 's': /* priSched; also -bD64 */
1654 fprintf(stderr,"DEBUG: priSched; priority scheduling.\n");
1655 RtsFlags.GranFlags.Debug.priSched = rtsTrue;
1658 case 'F': /* findWork; also -bD128 */
1659 fprintf(stderr,"DEBUG: findWork; searching spark-pools (local & remote), thread queues for work.\n");
1660 RtsFlags.GranFlags.Debug.findWork = rtsTrue;
1663 case 'g': /* globalBlock; also -bD256 */
1664 fprintf(stderr,"DEBUG: globalBlock; blocking on remote closures (FETCHMEs etc in GUM).\n");
1665 RtsFlags.GranFlags.Debug.globalBlock = rtsTrue;
1668 case 'G': /* pack; also -bD512 */
1669 fprintf(stderr,"DEBUG: pack; routines for (un-)packing graph structures.\n");
1670 RtsFlags.GranFlags.Debug.pack = rtsTrue;
1673 case 'P': /* packBuffer; also -bD1024 */
1674 fprintf(stderr,"DEBUG: packBuffer; routines handling pack buffer (GranSim internal!).\n");
1675 RtsFlags.GranFlags.Debug.packBuffer = rtsTrue;
1678 case 'o': /* sortedQ; also -bD2048 */
1679 fprintf(stderr,"DEBUG: sortedQ; check whether spark/thread queues are sorted.\n");
1680 RtsFlags.GranFlags.Debug.sortedQ = rtsTrue;
1683 case 'r': /* randomSteal; also -bD4096 */
1684 fprintf(stderr,"DEBUG: randomSteal; stealing sparks/threads from random PEs.\n");
1685 RtsFlags.GranFlags.Debug.randomSteal = rtsTrue;
1688 case 'q': /* checkSparkQ; also -bD8192 */
1689 fprintf(stderr,"DEBUG: checkSparkQ; check consistency of the spark queues.\n");
1690 RtsFlags.GranFlags.Debug.checkSparkQ = rtsTrue;
1693 case ':': /* checkLight; also -bD16384 */
1694 fprintf(stderr,"DEBUG: checkLight; check GranSim-Light setup.\n");
1695 RtsFlags.GranFlags.Debug.checkLight = rtsTrue;
1698 case 'b': /* bq; also -bD32768 */
1699 fprintf(stderr,"DEBUG: bq; check blocking queues\n");
1700 RtsFlags.GranFlags.Debug.bq = rtsTrue;
1703 case 'd': /* all options turned on */
1704 fprintf(stderr,"DEBUG: all options turned on.\n");
1705 set_GranSim_debug_options(MAX_GRAN_DEBUG_MASK);
1706 /* RtsFlags.GranFlags.Debug |= 0x40; */
1710 /* RtsFlags.GranFlags.Debug = 1; */
1716 # endif /* GRAN_CHECK */
1718 bad_option( rts_argv[arg] );
1724 Interpret n as a binary number masking GranSim debug options and set the
1725 correxponding option. See gran_debug_opts_strs for explanations of the flags.
1728 set_GranSim_debug_options(nat n) {
1731 for (i=0; i<=MAX_GRAN_DEBUG_OPTION; i++)
1733 fprintf(stderr, gran_debug_opts_strs[i]);
1735 case 0: RtsFlags.GranFlags.Debug.event_trace = rtsTrue; break;
1736 case 1: RtsFlags.GranFlags.Debug.event_stats = rtsTrue; break;
1737 case 2: RtsFlags.GranFlags.Debug.bq = rtsTrue; break;
1738 case 3: RtsFlags.GranFlags.Debug.pack = rtsTrue; break;
1739 case 4: RtsFlags.GranFlags.Debug.checkSparkQ = rtsTrue; break;
1740 case 5: RtsFlags.GranFlags.Debug.thunkStealing = rtsTrue; break;
1741 case 6: RtsFlags.GranFlags.Debug.randomSteal = rtsTrue; break;
1742 case 7: RtsFlags.GranFlags.Debug.findWork = rtsTrue; break;
1743 case 8: RtsFlags.GranFlags.Debug.unused = rtsTrue; break;
1744 case 9: RtsFlags.GranFlags.Debug.pri = rtsTrue; break;
1745 case 10: RtsFlags.GranFlags.Debug.checkLight = rtsTrue; break;
1746 case 11: RtsFlags.GranFlags.Debug.sortedQ = rtsTrue; break;
1747 case 12: RtsFlags.GranFlags.Debug.blockOnFetch = rtsTrue; break;
1748 case 13: RtsFlags.GranFlags.Debug.packBuffer = rtsTrue; break;
1749 case 14: RtsFlags.GranFlags.Debug.blockOnFetch_sanity = rtsTrue; break;
1750 default: barf("set_GranSim_debug_options: only %d debug options expected");
1756 Print one line explanation for each of the GranSim debug options specified
1760 help_GranSim_debug_options(nat n) {
1763 for (i=0; i<=MAX_GRAN_DEBUG_OPTION; i++)
1765 fprintf(stderr, gran_debug_opts_strs[i]);
1771 process_par_option(int arg, int *rts_argc, char *rts_argv[], rtsBool *error)
1774 if (rts_argv[arg][1] != 'q') { /* All GUM options start with -q */
1775 belch("Warning: GUM option does not start with -q: %s", rts_argv[arg]);
1779 /* Communication and task creation cost parameters */
1780 switch(rts_argv[arg][2]) {
1781 case 'e': /* -qe<n> ... allow <n> local sparks */
1782 if (rts_argv[arg][3] != '\0') { /* otherwise, stick w/ the default */
1783 RtsFlags.ParFlags.maxLocalSparks
1784 = strtol(rts_argv[arg]+3, (char **) NULL, 10);
1786 if (RtsFlags.ParFlags.maxLocalSparks <= 0) {
1787 belch("setupRtsFlags: bad value for -e\n");
1791 IF_PAR_DEBUG(verbose,
1792 belch("-qe<n>: max %d local sparks",
1793 RtsFlags.ParFlags.maxLocalSparks));
1797 if (rts_argv[arg][3] != '\0') {
1798 RtsFlags.ParFlags.maxThreads
1799 = strtol(rts_argv[arg]+3, (char **) NULL, 10);
1801 belch("setupRtsFlags: missing size for -qt\n");
1804 IF_PAR_DEBUG(verbose,
1805 belch("-qt<n>: max %d threads",
1806 RtsFlags.ParFlags.maxThreads));
1810 if (rts_argv[arg][3] != '\0')
1811 RtsFlags.ParFlags.maxFishes = decode(rts_argv[arg]+3);
1813 RtsFlags.ParFlags.maxFishes = MAX_FISHES;
1815 IF_PAR_DEBUG(verbose,
1816 belch("-qf<n>: max %d fishes sent out at one time",
1817 RtsFlags.ParFlags.maxFishes));
1821 if (rts_argv[arg][3] != '\0') {
1822 RtsFlags.ParFlags.fishDelay
1823 = strtol(rts_argv[arg]+3, (char **) NULL, 10);
1825 belch("setupRtsFlags: missing fish delay time for -qF\n");
1828 IF_PAR_DEBUG(verbose,
1829 belch("-qF<n>: fish delay time %d us",
1830 RtsFlags.ParFlags.fishDelay));
1834 RtsFlags.ParFlags.outputDisabled = rtsTrue;
1835 IF_PAR_DEBUG(verbose,
1836 belch("-qO: output disabled"));
1839 case 'g': /* -qg<n> ... globalisation scheme */
1840 if (rts_argv[arg][3] != '\0') {
1841 RtsFlags.ParFlags.globalising = decode(rts_argv[arg]+3);
1843 belch("setupRtsFlags: missing identifier for globalisation scheme (for -qg)\n");
1846 IF_PAR_DEBUG(verbose,
1847 belch("-qg<n>: globalisation scheme set to %d",
1848 RtsFlags.ParFlags.globalising));
1851 case 'h': /* -qh<n> ... max number of thunks (except root) in packet */
1852 if (rts_argv[arg][3] != '\0') {
1853 RtsFlags.ParFlags.thunksToPack = decode(rts_argv[arg]+3);
1855 belch("setupRtsFlags: missing number of thunks per packet (for -qh)\n");
1858 IF_PAR_DEBUG(verbose,
1859 belch("-qh<n>: thunks per packet set to %d",
1860 RtsFlags.ParFlags.thunksToPack));
1863 case 'P': /* -qP for writing a log file */
1864 //RtsFlags.ParFlags.ParStats.Full = rtsFalse;
1865 /* same encoding as in GranSim after -bP */
1866 switch(rts_argv[arg][3]) {
1867 case '\0': RtsFlags.ParFlags.ParStats.Full = rtsTrue;
1868 break; // nothing special, just an ordinary profile
1869 case '0': RtsFlags.ParFlags.ParStats.Suppressed = rtsTrue;
1870 RtsFlags.ParFlags.ParStats.Full = rtsFalse;
1872 case 'b': RtsFlags.ParFlags.ParStats.Binary = rtsTrue;
1874 case 's': RtsFlags.ParFlags.ParStats.Sparks = rtsTrue;
1876 //case 'h': RtsFlags.parFlags.ParStats.Heap = rtsTrue;
1878 case 'n': RtsFlags.ParFlags.ParStats.NewLogfile = rtsTrue;
1881 # if defined(PAR_TICKY)
1882 RtsFlags.ParFlags.ParStats.Global = rtsTrue;
1884 fprintf(stderr,"-qPg is only possible for a PAR_TICKY RTS, which this is not");
1885 stg_exit(EXIT_FAILURE);
1888 default: barf("Unknown option -qP%c", rts_argv[arg][2]);
1890 IF_PAR_DEBUG(verbose,
1891 belch("(-qP) writing to log-file (RtsFlags.ParFlags.ParStats.Full=%s)",
1892 (RtsFlags.ParFlags.ParStats.Full ? "rtsTrue" : "rtsFalse")));
1895 case 'Q': /* -qQ<n> ... set pack buffer size to <n> */
1896 if (rts_argv[arg][3] != '\0') {
1897 RtsFlags.ParFlags.packBufferSize = decode(rts_argv[arg]+3);
1899 belch("setupRtsFlags: missing size of PackBuffer (for -qQ)\n");
1902 IF_PAR_DEBUG(verbose,
1903 belch("-qQ<n>: pack buffer size set to %d",
1904 RtsFlags.ParFlags.packBufferSize));
1908 RtsFlags.ParFlags.doFairScheduling = rtsTrue;
1909 IF_PAR_DEBUG(verbose,
1910 belch("-qR: fair-ish scheduling"));
1915 if (rts_argv[arg][3] != '\0') {
1916 RtsFlags.ParFlags.wait
1917 = strtol(rts_argv[arg]+3, (char **) NULL, 10);
1919 RtsFlags.ParFlags.wait = 1000;
1921 IF_PAR_DEBUG(verbose,
1922 belch("-qw<n>: length of wait loop after synchr before reduction: %d",
1923 RtsFlags.ParFlags.wait));
1926 case 'D': /* -qD ... all the debugging options */
1927 if (isdigit(rts_argv[arg][3])) {/* Set all debugging options in one */
1928 /* hack warning: interpret the flags as a binary number */
1929 nat n = decode(rts_argv[arg]+3);
1930 set_par_debug_options(n);
1933 for (i=0; i<=MAX_PAR_DEBUG_OPTION; i++)
1934 if (rts_argv[arg][3] == par_debug_opts_flags[i])
1937 if (i==MAX_PAR_DEBUG_OPTION+1) {
1938 fprintf(stderr, "Valid GUM debug options are:\n");
1939 help_par_debug_options(MAX_PAR_DEBUG_MASK);
1940 bad_option( rts_argv[arg] );
1941 } else { // flag found; now set it
1942 set_par_debug_options(PAR_DEBUG_MASK(i)); // 2^i
1948 belch("Unknown option -q%c (%d opts in total)",
1949 rts_argv[arg][2], *rts_argc);
1955 Interpret n as a binary number masking Par debug options and set the
1956 correxponding option. See par_debug_opts_strs for explanations of the flags.
1959 set_par_debug_options(nat n) {
1962 for (i=0; i<=MAX_PAR_DEBUG_OPTION; i++)
1964 fprintf(stderr, par_debug_opts_strs[i]);
1966 case 0: RtsFlags.ParFlags.Debug.verbose = rtsTrue; break;
1967 case 1: RtsFlags.ParFlags.Debug.bq = rtsTrue; break;
1968 case 2: RtsFlags.ParFlags.Debug.schedule = rtsTrue; break;
1969 case 3: RtsFlags.ParFlags.Debug.free = rtsTrue; break;
1970 case 4: RtsFlags.ParFlags.Debug.resume = rtsTrue; break;
1971 case 5: RtsFlags.ParFlags.Debug.weight = rtsTrue; break;
1972 case 6: RtsFlags.ParFlags.Debug.fetch = rtsTrue; break;
1973 //case 7: RtsFlags.ParFlags.Debug.ack = rtsTrue; break;
1974 case 7: RtsFlags.ParFlags.Debug.fish = rtsTrue; break;
1975 case 8: RtsFlags.ParFlags.Debug.tables = rtsTrue; break;
1976 case 9: RtsFlags.ParFlags.Debug.packet = rtsTrue; break;
1977 case 10: RtsFlags.ParFlags.Debug.pack = rtsTrue; break;
1978 case 11: RtsFlags.ParFlags.Debug.paranoia = rtsTrue; break;
1979 default: barf("set_par_debug_options: only %d debug options expected",
1980 MAX_PAR_DEBUG_OPTION);
1986 Print one line explanation for each of the GranSim debug options specified
1990 help_par_debug_options(nat n) {
1993 for (i=0; i<=MAX_PAR_DEBUG_OPTION; i++)
1995 fprintf(stderr, par_debug_opts_strs[i]);
2002 set_debug_options(nat n) {
2005 for (i=0; i<=MAX_DEBUG_OPTION; i++)
2007 fprintf(stderr, debug_opts_strs[i]);
2009 case 0: RtsFlags.DebugFlags.scheduler = rtsTrue; break;
2010 case 1: RtsFlags.DebugFlags.evaluator = rtsTrue; break;
2011 case 2: RtsFlags.DebugFlags.codegen = rtsTrue; break;
2012 case 3: RtsFlags.DebugFlags.weak = rtsTrue; break;
2013 case 4: RtsFlags.DebugFlags.gccafs = rtsTrue; break;
2014 case 5: RtsFlags.DebugFlags.gc = rtsTrue; break;
2015 case 6: RtsFlags.DebugFlags.block_alloc = rtsTrue; break;
2016 case 7: RtsFlags.DebugFlags.sanity = rtsTrue; break;
2017 case 8: RtsFlags.DebugFlags.stable = rtsTrue; break;
2018 case 9: RtsFlags.DebugFlags.prof = rtsTrue; break;
2019 case 10: RtsFlags.DebugFlags.gran = rtsTrue; break;
2020 case 11: RtsFlags.DebugFlags.par = rtsTrue; break;
2021 case 12: RtsFlags.DebugFlags.linker = rtsTrue; break;
2022 default: barf("set_debug_options: only %d debug options expected",
2029 help_debug_options(nat n) {
2032 for (i=0; i<=MAX_DEBUG_OPTION; i++)
2034 fprintf(stderr, debug_opts_strs[i]);
2038 //@node Aux fcts, , GranSim specific options
2039 //@subsection Aux fcts
2041 static FILE * /* return NULL on error */
2044 int argc, char *argv[],
2045 int rts_argc, char *rts_argv[],
2046 const char *FILENAME_FMT)
2050 if (strequal(rts_argv[arg]+2, "stderr")) /* use real stderr */
2052 else if (rts_argv[arg][2] != '\0') /* stats file specified */
2053 f = fopen(rts_argv[arg]+2,"w");
2055 char stats_filename[STATS_FILENAME_MAXLEN]; /* default <program>.<ext> */
2056 sprintf(stats_filename, FILENAME_FMT, argv[0]);
2057 f = fopen(stats_filename,"w");
2060 fprintf(stderr, "Can't open stats file %s\n", rts_argv[arg]+2);
2062 /* Write argv and rtsv into start of stats file */
2064 for(count = 0; count < argc; count++)
2065 fprintf(f, "%s ", argv[count]);
2066 fprintf(f, "+RTS ");
2067 for(count = 0; count < rts_argc; count++)
2068 fprintf(f, "%s ", rts_argv[count]);
2076 decode(const char *s)
2087 if (c == 'g' || c == 'G')
2088 m *= 1000*1000*1000; /* UNchecked! */
2089 else if (c == 'm' || c == 'M')
2090 m *= 1000*1000; /* We do not use powers of 2 (1024) */
2091 else if (c == 'k' || c == 'K') /* to avoid possible bad effects on */
2092 m *= 1000; /* a direct-mapped cache. */
2093 else if (c == 'w' || c == 'W')
2100 bad_option(const char *s)
2102 prog_belch("bad RTS option: %s", s);
2103 stg_exit(EXIT_FAILURE);