About This Video
This video is
Comparing IUS 08.20.009 to 08.20.017;
it turns out the newer version performs
worse. The irun.log log file shows caching
and long (ncelab) run times for the latter but not the
former. This is reproducible (not just an artifact of other processes affecting overall CPU usage).
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cadsupport (0:08)
1 month ago 0 + -Clean out the results directory
cadsupport (1:15)
1 month ago 0 + -Some regression test results to show that the circuit is toggling; this is not relevant to the problem described here.
cadsupport (1:55)
1 month ago 0 + -For IUS 08.20.009, ncelab takes less than 2 seconds
cadsupport (2:14)
1 month ago 0 + -I run with -libverbose -- no caching is seen
cadsupport (2:26)
1 month ago 0 + -Re-run the regression test with a newer version of IUS (and IC, and MMSIM).
cadsupport (2:34)
1 month ago 0 + -Again, we've cleaned out the results directory
cadsupport (3:47)
1 month ago 0 + -Circuit functions as before...
cadsupport (4:10)
1 month ago 0 + -With IUS 08.20.017 ncelab takes 25 seconds
cadsupport (4:29)
1 month ago 0 + -Caching seen with the -libverbose option turned on.
cadsupport (4:45)
1 month ago 0 + -Note the version "number"