181 |
|
int |
182 |
|
RadSimulManager::SetThreadCount(int nt) |
183 |
|
{ |
184 |
< |
if (!Ready()) |
185 |
< |
return 0; |
184 |
> |
if (!Ready()) return 0; |
185 |
|
|
186 |
|
if (nt <= 0) nt = castonly ? 1 : GetNCores(); |
187 |
|
|
195 |
|
return NThreads(); |
196 |
|
} |
197 |
|
|
199 |
– |
// Assign ray to subthread (fails if NThreads()<2) |
200 |
– |
bool |
201 |
– |
RadSimulManager::SplitRay(RAY *r) |
202 |
– |
{ |
203 |
– |
if (!ray_pnprocs || ThreadsAvailable() < 1) |
204 |
– |
return false; |
205 |
– |
|
206 |
– |
return (ray_psend(r) > 0); |
207 |
– |
} |
208 |
– |
|
198 |
|
// Process a ray (in subthread), optional result |
199 |
< |
bool |
199 |
> |
int |
200 |
|
RadSimulManager::ProcessRay(RAY *r) |
201 |
|
{ |
202 |
< |
if (!Ready()) return false; |
202 |
> |
if (!Ready()) return -1; |
203 |
|
|
204 |
|
if (!ray_pnprocs) { // single-threaded mode? |
205 |
|
samplendx++; |
206 |
|
rayvalue(r); |
207 |
< |
return true; |
207 |
> |
return 1; |
208 |
|
} |
209 |
< |
int rv = ray_pqueue(r); |
221 |
< |
if (rv < 0) { |
222 |
< |
error(WARNING, "ray tracing process(es) died"); |
223 |
< |
return false; |
224 |
< |
} |
225 |
< |
return (rv > 0); |
209 |
> |
return ray_pqueue(r); |
210 |
|
} |
211 |
|
|
212 |
|
// Wait for next result (or fail) |
233 |
|
return 0; |
234 |
|
} |
235 |
|
|
252 |
– |
// How many threads are currently unoccupied? |
253 |
– |
int |
254 |
– |
RadSimulManager::ThreadsAvailable() const |
255 |
– |
{ |
256 |
– |
if (!ray_pnprocs) return 1; |
257 |
– |
|
258 |
– |
return ray_pnidle; |
259 |
– |
} |
260 |
– |
|
236 |
|
// Global pointer to simulation manager for trace call-back (only one) |
237 |
|
static const RtraceSimulManager * ourRTsimMan = NULL; |
238 |
|
|
263 |
|
|
264 |
|
int misMatch = (rtFlags ^ curFlags) & RTmask; |
265 |
|
// updates based on toggled flags |
266 |
< |
if (misMatch & RTtraceSources) { |
266 |
> |
if (((misMatch & RTtraceSources) != 0) & (nsources > 0)) { |
267 |
> |
int nt = NThreads(); |
268 |
> |
if (nt > 1) { |
269 |
> |
if (FlushQueue() < 0) |
270 |
> |
return false; |
271 |
> |
SetThreadCount(1); |
272 |
> |
} |
273 |
|
int sn = nsources; |
274 |
|
if (rtFlags & RTtraceSources) { |
275 |
|
srcFollowed.NewBitMap(nsources); |
285 |
|
source[sn].sflags &= ~SFOLLOW; |
286 |
|
srcFollowed.NewBitMap(0); |
287 |
|
} |
288 |
+ |
if (nt > 1) SetThreadCount(nt); |
289 |
|
} |
290 |
|
if (misMatch & RTdoFIFO && FlushQueue() < 0) |
291 |
|
return false; |
315 |
|
static void |
316 |
|
rayirrad(RAY *r) |
317 |
|
{ |
318 |
< |
/* pretend we hit surface */ |
319 |
< |
r->rxt = r->rot = 1e-5; |
320 |
< |
VSUM(r->rop, r->rorg, r->rdir, r->rot); |
321 |
< |
r->ron[0] = -r->rdir[0]; |
322 |
< |
r->ron[1] = -r->rdir[1]; |
323 |
< |
r->ron[2] = -r->rdir[2]; |
318 |
> |
/* orientation -> normal */ |
319 |
> |
VCOPY(r->ron, r->rdir); |
320 |
> |
/* pretend normal incidence */ |
321 |
> |
r->rdir[0] = -r->ron[0]; |
322 |
> |
r->rdir[1] = -r->ron[1]; |
323 |
> |
r->rdir[2] = -r->ron[2]; |
324 |
|
r->rod = 1.0; |
325 |
+ |
/* counterfeit other params */ |
326 |
+ |
r->rxt = r->rot = 1e-4; |
327 |
+ |
/* move comfortably above sample pos. */ |
328 |
+ |
VSUM(r->rop, r->rorg, r->ron, r->rot); |
329 |
+ |
/* leap-frog for pretend origin */ |
330 |
+ |
VSUM(r->rorg, r->rop, r->ron, r->rot); |
331 |
|
/* compute result */ |
332 |
|
r->revf = raytrace; |
333 |
|
m_normal(&Lamb, r); |
354 |
|
int nqueued = 0; |
355 |
|
RAY res; |
356 |
|
|
357 |
< |
if (!Ready()) |
370 |
< |
return -1; |
357 |
> |
if (!Ready()) return -1; |
358 |
|
|
359 |
|
if (castonly && !cookedCall) |
360 |
|
error(INTERNAL, "EnqueueBundle() called in castonly mode without cookedCall"); |
385 |
|
if (ray_fifo_in(&res) < 0) |
386 |
|
return -1; |
387 |
|
sendRes = false; |
388 |
< |
} else |
389 |
< |
sendRes &= ProcessRay(&res); |
388 |
> |
} else { |
389 |
> |
int rv = ProcessRay(&res); |
390 |
> |
if (rv < 0) |
391 |
> |
return -1; |
392 |
> |
sendRes &= (rv > 0); |
393 |
> |
} |
394 |
|
} else if (ThreadsAvailable() < NThreads() && |
395 |
|
FlushQueue() < 0) |
396 |
|
return -1; |