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root/Development/ray/src/rt/RcontribSimulManager.cpp

Comparing ray/src/rt/RcontribSimulManager.cpp (file contents):
Revision 2.11 by greg, Thu Jan 2 16:16:49 2025 UTC vs.
Revision 2.22 by greg, Tue Nov 11 00:19:10 2025 UTC

#	Line 52 | Line 52 | struct RowAssignment {
52		uint32                  ac;             // accumulation count
53		};
54
55	<	// Get format identifier
56	<	const char *
57	<	formstr(int f)
58	<	{
59	<	switch (f) {
60	<	case 'a': return("ascii");
61	<	case 'f': return("float");
62	<	case 'd': return("double");
63	<	case 'c': return(NCSAMP==3 ? COLRFMT : SPECFMT);
64	<	}
65	<	return("unknown");
66	<	}
55	>	static const char       ROW_DONE[] = "ROW FINISHED\n";
56
57	<	// Our default data share function
58	<	RdataShare *
70	<	defDataShare(const char *name, RCOutputOp op, size_t siz)
71	<	{
72	<	return new RdataShareMap(name, RSDOflags[op], siz);
73	<	}
74	<
75	<	// Allocate rcontrib accumulator
76	<	RcontribMod *
57	>	// allocate rcontrib accumulator
58	>	static RcontribMod *
59		NewRcMod(const char *prms, const char *binexpr, int ncbins)
60		{
61	+	if (binexpr && !*binexpr) binexpr = NULL;
62		if (!prms) prms = "";
63		if ((ncbins > 1) & !binexpr) {
64		error(USER, "missing bin expression");
#	Line 110 | Line 93 | NewRcMod(const char *prms, const char *binexpr, int nc
93		return mp;
94		}
95
96	<	// Free an RcontribMod
96	>	// Free an RcontribMod (public for RcontribSimulManager constructor)
97		void
98		FreeRcMod(void *p)
99		{
#	Line 120 | Line 103 | FreeRcMod(void *p)
103		efree(p);
104		}
105
106	+	// Get format identifier
107	+	const char *
108	+	formstr(int f)
109	+	{
110	+	switch (f) {
111	+	case 'a': return("ascii");
112	+	case 'f': return("float");
113	+	case 'd': return("double");
114	+	case 'c': return(NCSAMP==3 ? COLRFMT : SPECFMT);
115	+	}
116	+	return("unknown");
117	+	}
118	+
119	+	// Standard file data share function
120	+	RdataShare *
121	+	fileDataShare(const char *name, RCOutputOp op, size_t siz)
122	+	{
123	+	if (op == RCOrecover && access(name, R_OK|W_OK) < 0) {
124	+	sprintf(errmsg, "cannot recover from '%s'", name);
125	+	error(SYSTEM, errmsg);
126	+	return NULL;
127	+	}
128	+	RdataShare *    rds = new RdataShareFile(name, RSDOflags[op],
129	+	siz*(op != RCOforce));
130	+
131	+	if (!rds || (op == RCOforce && rds->Resize(siz) < siz)) {
132	+	delete rds;
133	+	sprintf(errmsg, "cannot create %lu byte output file '%s'",
134	+	(unsigned long)siz, name);
135	+	error(SYSTEM, errmsg);
136	+	return NULL;
137	+	}
138	+	return rds;
139	+	}
140	+
141	+	// Memory-mapped data share function
142	+	RdataShare *
143	+	mapDataShare(const char *name, RCOutputOp op, size_t siz)
144	+	{
145	+	if (op == RCOrecover && access(name, R_OK|W_OK) < 0) {
146	+	sprintf(errmsg, "cannot recover from '%s'", name);
147	+	error(SYSTEM, errmsg);
148	+	return NULL;
149	+	}
150	+	RdataShare *    rds = new RdataShareMap(name, RSDOflags[op],
151	+	siz*(op != RCOforce));
152	+
153	+	if (!rds || (op == RCOforce && rds->Resize(siz) < siz)) {
154	+	delete rds;
155	+	sprintf(errmsg, "cannot create %lu byte output map '%s'",
156	+	(unsigned long)siz, name);
157	+	error(SYSTEM, errmsg);
158	+	return NULL;
159	+	}
160	+	return rds;
161	+	}
162	+
163		// Set output format ('f', 'd', or 'c')
164		bool
165		RcontribSimulManager::SetDataFormat(int ty)
#	Line 163 | Line 203 | RcontribSimulManager::RctCall(RAY *r, void *cd)
203		if (!mp)
204		return 0;               // not in our modifier list
205
206	+	if (rcp->HasFlag(RCcontrib) && sintens(r->rcol) <= FTINY)
207	+	return 0;               // zero contribution
208	+
209		int                     bi = 0; // get bin index
210		if (mp->binv) {
211		worldfunc(RCCONTEXT, r);
#	Line 215 | Line 258 | RcontribSimulManager::AddModifier(const char *modn, co
258		error(WARNING, "ignoring bad call to AddModifier()");
259		return false;
260		}
261	+	if (*outspec == '!') {
262	+	error(USER, "command output not supported by RcontribSimulManager");
263	+	return false;
264	+	}
265		if (!nChan) {                           // initial call?
266		if ((xres < 0) | (yres <= 0)) {
267		error(USER, "xres, yres must be set before first modifier");
#	Line 373 | Line 420 | RcontribSimulManager::PrepOutput()
420		if (rd < 0)
421		return -1;
422		if (rd >= op->nRows) {
423	<	if (remWarnings >= 0) {
423	>	if (remWarnings > 0) {
424		sprintf(errmsg, "recovered output '%s' is complete",
425		op->GetName());
426		error(WARNING, --remWarnings ? errmsg : "etc...");
#	Line 390 | Line 437 | RcontribSimulManager::PrepOutput()
437		}
438		rowsDone.NewBitMap(outList->nRows);     // create row completion map
439		rowsDone.ClearBits(0, rInPos, true);
440	<	return rInPos;
440	>	return nrDone = rInPos;
441		}
442
443		// Create header in open write-only channel
#	Line 425 | Line 472 | RcontribOutput::NewHeader(const RcontribSimulManager *
472		sprintf(hdr+begData, "%s%d\n", NCOMPSTR, NCSAMP);
473		begData += strlen(hdr+begData);
474		if (NCSAMP > 3) {
475	<	sprintf(hdr+begData, "%s %f %f %f %f\n", WLSPLTSTR,
475	>	sprintf(hdr+begData, "%s %g %g %g %g\n", WLSPLTSTR,
476		WLPART[0], WLPART[1], WLPART[2], WLPART[3]);
477		begData += strlen(hdr+begData);
478		}
#	Line 510 | Line 557 | RcontribOutput::CheckHeader(const RcontribSimulManager
557		return -1;
558		}
559		// check #columns
560	<	if (((cp = findArgs(hdr, "NCOLS=", begData)) && atoi(cp)*esiz != rowBytes) ||
561	<	!rcp->xres | (rowBytes > esiz)) {
562	<	sprintf(errmsg, "expected NCOLS=%d in '%s'",
516	<	int(rowBytes/esiz), GetName());
560	>	if ((cp = findArgs(hdr, "NCOLS=", begData)) ? (atoi(cp)*esiz != rowBytes)
561	>	: (!rcp->xres | (rowBytes > esiz))) {
562	>	sprintf(errmsg, "expected NCOLS=%d in '%s'", int(rowBytes/esiz), GetName());
563		error(USER, errmsg);
564		return -1;
565		}
#	Line 555 | Line 601 | RcontribSimulManager::ResetRow(int r)
601		return false;
602
603		rowsDone.ClearBits(r, rInPos-r, false);
604	<	rInPos = r;
604	>	nrDone = rInPos = r;
605		return true;
606		}
607
#	Line 602 | Line 648 | putModContrib(const LUENT *lp, void *p)
648		}
649		} break;
650		default:
651	<	error(CONSISTENCY, "unsupported output type in sendModContrib()");
651	>	error(CONSISTENCY, "unsupported output type in putModContrib()");
652		return -1;
653		}
654		// clear for next tally
#	Line 621 | Line 667 | RcontribSimulManager::ComputeRecord(const FVECT orig_d
667		return 0;
668		}
669		if (nkids > 0) {                        // in parent process?
670	<	int     k = GetChild();         // updates output rows
671	<	if (k < 0) return -1;           // can't really happen
670	>	int     k = GetChild(false);    // updates output rows
671	>	if (k < 0) return -1;           // someone died?
672		RowAssignment   rass;
673		rass.row = kidRow[k] = rInPos++;
674		rass.ac = accum;
#	Line 667 | Line 713 | RcontribSimulManager::GetChild(bool forceWait)
713		return -1;
714		// take inventory
715		int     pn, n = 0;
716	<	fd_set  writeset, errset;
717	<	FD_ZERO(&writeset); FD_ZERO(&errset);
716	>	fd_set  readset, errset;
717	>	FD_ZERO(&readset); FD_ZERO(&errset);
718		for (pn = nkids; pn--; ) {
719		if (kidRow[pn] < 0) {           // child already ready?
720		if (forceWait) continue;
721		return pn;              // good enough
722		}
723	<	FD_SET(kid[pn].w, &writeset);   // will check on this one
724	<	FD_SET(kid[pn].w, &errset);
725	<	if (kid[pn].w >= n)
726	<	n = kid[pn].w + 1;
723	>	FD_SET(kid[pn].r, &readset);    // will check on this one
724	>	FD_SET(kid[pn].r, &errset);
725	>	if (kid[pn].r >= n)
726	>	n = kid[pn].r + 1;
727		}
728		if (!n)                                 // every child is idle?
729		return -1;
730		// wait on "busy" child(ren)
731	<	while ((n = select(n, NULL, &writeset, &errset, NULL)) <= 0)
731	>	while ((n = select(n, &readset, NULL, &errset, NULL)) <= 0)
732		if (errno != EINTR) {
733		error(SYSTEM, "select call failed in GetChild()");
734		return -1;
735		}
736	+	char    buf[sizeof(ROW_DONE)] = "X";
737		pn = -1;                                // get flags set by select
738		for (n = nkids; n--; )
739		if (kidRow[n] >= 0 &&
740	<	FD_ISSET(kid[n].w, &writeset) |
741	<	FD_ISSET(kid[n].w, &errset)) {
740	>	FD_ISSET(kid[n].r, &readset) |
741	>	FD_ISSET(kid[n].r, &errset)) {
742	>	// check for error
743	>	if (FD_ISSET(kid[n].r, &errset) ||
744	>	read(kid[n].r, buf, sizeof(ROW_DONE)) <= 0 ||
745	>	memcmp(buf, ROW_DONE, sizeof(ROW_DONE)))
746	>	return -1;
747		// update output row counts
748	<	if (!FD_ISSET(kid[n].w, &errset))
749	<	UpdateRowsDone(kidRow[n]);
698	<	kidRow[n] = -1;         // flag it available
748	>	UpdateRowsDone(kidRow[n]);
749	>	kidRow[n] = -1;         // flag child available
750		pn = n;
751		}
752		return pn;
#	Line 709 | Line 760 | RcontribSimulManager::UpdateRowsDone(int r)
760		error(WARNING, "redundant call to UpdateRowsDone()");
761		return false;
762		}
763	<	int     nDone = GetRowFinished();
764	<	if (nDone <= r)
763	>	GetRowFinished();
764	>	if (nrDone <= r)
765		return true;                    // nothing to update, yet
766		for (RcontribOutput *op = outList; op; op = op->next)
767	<	if (!op->SetRowsDone(nDone))
767	>	if (!op->SetRowsDone(nrDone))
768		return false;
769		return true;                            // up-to-date
770		}
#	Line 733 | Line 784 | RcontribSimulManager::RunChild()
784		error(CONSISTENCY, "bad accumulator count in child");
785		exit(1);
786		}
787	<	if (rass.ac > accum)
788	<	vecList = (FVECT *)erealloc(vecList,
789	<	sizeof(FVECT)*2*rass.ac);
787	>	if (rass.ac > accum) {
788	>	efree(vecList);
789	>	vecList = (FVECT *)emalloc(sizeof(FVECT)*2*rass.ac);
790	>	}
791		accum = rass.ac;
792		rInPos = rass.row;
793
#	Line 745 | Line 797 | RcontribSimulManager::RunChild()
797
798		if (ComputeRecord(vecList) <= 0)
799		exit(1);
800	+	// signal this row is done
801	+	if (write(1, ROW_DONE, sizeof(ROW_DONE)) != sizeof(ROW_DONE))
802	+	exit(1);
803		}
804		if (nr) {
805		error(SYSTEM, "read error in child process");
#	Line 770 | Line 825 | RcontribSimulManager::StartKids(int n2go)
825		fflush(stdout);                         // shouldn't use, anyway
826		while (nkids < n2go) {
827		kid[nkids] = sp_inactive;
773	–	kid[nkids].w = dup(1);
774	–	kid[nkids].flags |= PF_FILT_OUT;
828		int     rv = open_process(&kid[nkids], NULL);
829		if (!rv) {                      // in child process?
830	<	while (nkids-- > 0)
830	>	while (nkids-- > 0) {
831	>	close(kid[nkids].r);
832		close(kid[nkids].w);
833	+	}
834		free(kid); free(kidRow);
835		kid = NULL; kidRow = NULL;
836		RunChild();             // should never return

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