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root/radiance/ray/src/util/genBSDF.pl
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Comparing ray/src/util/genBSDF.pl (file contents):
Revision 2.22 by greg, Fri Jun 24 00:41:51 2011 UTC vs.
Revision 2.26 by greg, Tue Oct 25 20:51:10 2011 UTC

# Line 16 | Line 16 | chomp $td;
16   my @savedARGV = @ARGV;
17   my $tensortree = 0;
18   my $ttlog2 = 4;
19 < my $nsamp = 1000;
19 > my $nsamp = 2000;
20   my $rtargs = "-w -ab 5 -ad 700 -lw 3e-6";
21   my $mgfin = 0;
22   my $geout = 1;
# Line 149 | Line 149 | print
149   </WindowElement>
150   ';
151   # Clean up temporary files and exit
152 if ( $persistfile && open(PFI, "< $persistfile") ) {
153        while (<PFI>) {
154                s/^[^ ]* //;
155                kill('ALRM', $_);
156                last;
157        }
158        close PFI;
159 }
152   exec("rm -rf $td");
153  
154   #-------------- End of main program segment --------------#
155  
156 + #++++++++++++++ Kill persistent rtrace +++++++++++++++++++#
157 + sub persist_end {
158 +        if ( $persistfile && open(PFI, "< $persistfile") ) {
159 +                while (<PFI>) {
160 +                        s/^[^ ]* //;
161 +                        kill('ALRM', $_);
162 +                        last;
163 +                }
164 +                close PFI;
165 +        }
166 + }
167 +
168   #++++++++++++++ Tensor tree BSDF generation ++++++++++++++#
169   sub do_tree_bsdf {
170   # Get sampling rate and subdivide task
171   my $ns2 = $ns;
172   $ns2 /= 2 if ( $tensortree == 3 );
173 < @pdiv = (0, int($ns2/$nproc));
174 < my $nrem = $ns2 % $nproc;
175 < for (my $i = 1; $i < $nproc; $i++) {
173 > my $nsplice = $nproc;
174 > $nsplice *= 10 if ($nproc > 1);
175 > $nsplice = $ns2 if ($nsplice > $ns2);
176 > $nsplice = 999 if ($nsplice > 999);
177 > @pdiv = (0, int($ns2/$nsplice));
178 > my $nrem = $ns2 % $nsplice;
179 > for (my $i = 1; $i < $nsplice; $i++) {
180          my $nv = $pdiv[$i] + $pdiv[1];
181          ++$nv if ( $nrem-- > 0 );
182          push @pdiv, $nv;
# Line 217 | Line 225 | print "\t<DataDefinition>\n";
225   print "\t\t<IncidentDataStructure>TensorTree$tensortree</IncidentDataStructure>\n";
226   print "\t</DataDefinition>\n";
227   # Fork parallel rtcontrib processes to compute each side
228 + my $npleft = $nproc;
229   if ( $doback ) {
230 <        for (my $proc = 0; $proc < $nproc; $proc++) {
231 <                bg_tree_rtcontrib(0, $proc);
230 >        for (my $splice = 0; $splice < $nsplice; $splice++) {
231 >                if (! $npleft ) {
232 >                        wait();
233 >                        die "rtcontrib process reported error" if ( $? );
234 >                        $npleft++;
235 >                }
236 >                bg_tree_rtcontrib(0, $splice);
237 >                $npleft--;
238          }
239          while (wait() >= 0) {
240                  die "rtcontrib process reported error" if ( $? );
241 +                $npleft++;
242          }
243 +        persist_end();
244          ttree_out(0);
245   }
246   if ( $doforw ) {
247 <        for (my $proc = 0; $proc < $nproc; $proc++) {
248 <                bg_tree_rtcontrib(1, $proc);
247 >        for (my $splice = 0; $splice < $nsplice; $splice++) {
248 >                if (! $npleft ) {
249 >                        wait();
250 >                        die "rtcontrib process reported error" if ( $? );
251 >                        $npleft++;
252 >                }
253 >                bg_tree_rtcontrib(1, $splice);
254 >                $npleft--;
255          }
256          while (wait() >= 0) {
257                  die "rtcontrib process reported error" if ( $? );
258 +                $npleft++;
259          }
260 +        persist_end();
261          ttree_out(1);
262   }
263   }       # end of sub do_tree_bsdf()
264  
265 < # Run i'th rtcontrib process for generating tensor tree samples
265 > # Run rtcontrib process in background to generate tensor tree samples
266   sub bg_tree_rtcontrib {
267          my $pid = fork();
268          die "Cannot fork new process" unless defined $pid;

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