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IDProjectCategoryView StatusLast Update
0013929Open CASCADEOCCT:Modeling Algorithmspublic2010-06-30 10:30
ReporterabvAssigned Toifv 
PrioritynormalSeveritytrivial 
Status closedResolutionunable to reproduce 
OSAll 
Summary0013929: Incmesh hangs on Motor.rle in release builds under WOK on WNT (VC 6 and 7.1)
DescriptionThe DRAW command "incmesh" hangs on the attached model Motor.rle on WNT; this
happens however only under WOK with OCCT built in optimised mode under VC 6 and
7.1.

It hangs in:

KAS:dev:ros
OS:OCC:rosmnt
OS:OCC:rosmnt-VC7
OS:OCC:ros52

It does not hang on SUN in KAS:dev:ros and on WNT in:

KAS:dev:rosdeb
OS:OCC:rosmntdeb
OS:OCC:rosmnt-VC8 (runs ~17 sec )

The commands to test are:

Draw[]> pload MODELING
Draw[]> restore /users/det/files/Motor.rle a
Draw[]> incmesh a 0.01

Note that this model has been used for a long time in equivalent call (building
mesh with tolerance 0.01) in regular unit tests of Best Fit application, which
runs on WNT and used OCCT 5.2, 5.2.4, 6.1.1 with official builds on VC6, VC7.1,
and VC8.0, and it never exhibited any problems.

Special note: remarkable that it works in VC8 build. One known difference
between OCC builds with VC8 vs. VC7.1 and 6 is that in VC8 default floating
point option is /fp:precise, while on VC7.1 and VC6 the equivalent option /Op
is OFF by default. In fact, the bug has been discovered while trying to detect
the difference in behaviour of these OCCT builds due to that option.
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Issue History

Date Modified Username Field Change
2006-11-16 14:50 bugmaster Assigned To bugmaster => apv
2006-11-16 14:50 bugmaster Status new => assigned
2006-11-16 14:50 bugmaster Category => WOK
2006-11-16 14:54 bugmaster Assigned To apv => bugmaster
2006-11-16 14:54 bugmaster Category => MOA
2007-07-04 13:22 bugmaster Assigned To bugmaster => ifv
2010-06-30 10:30 bugmaster Status assigned => closed
2010-06-30 10:30 bugmaster Resolution @0@ => unable to reproduce
2011-08-02 11:31 bugmaster Category OCCT:MOA => OCCT:Modeling Algorithms