[ros-users] tabletop_object_detector crashing loading model from household database in RAM

Ugo Cupcic ugo at shadowrobot.com
Mon Dec 6 09:45:45 UTC 2010


Hi Peter,

Thanks for your answer, I'll look into that and try to build a subset of
the models.

By the way, it seems to be taking a lot more than 2Gb (I tried to load
it and it took more than 7Gb (and then crashed)).

Cheers,

Ugo

On 05/12/10 00:26, Peter Brook wrote:
> Hey Ugo,
>
> In my experience with the tabletop_object_detector, the memory usage
> can be quite bad. The usage depends on the number of models in the
> model_set, but I have seen the node use over 2GB of memory.
>
> You can change the number of models being loaded by creating a new
> model set with fewer models than the default one. Since you have your
> own local copy of the database, take a look at the model_set table of
> household_objects_database.
>
> Peter
>
> On Thu, Dec 2, 2010 at 8:51 AM, Ugo Cupcic <ugo at shadowrobot.com
> <mailto:ugo at shadowrobot.com>> wrote:
>
>     Hi all,
>
>     I'm trying to use the tabletop_object_detector. It works fine when I'm
>     setting use_database to false.
>
>     The problem I have is when I'm trying to use the database: I
>     installed a
>     local copy of the household_objects_database. The
>     household_objects_database node seems to be working fine. However,
>     when
>     I start the tabletop_object_detector/tabletop_node, the node crashes
>     while loading the models (it loads lots of models before crashing).
>
>     Any idea ?
>
>     I also had an other quick question: how much RAM does the
>     tabletop_node
>     need to load the database? With 4Gb I'm swapping constantly.
>
>     You can find the backtrace below.
>
>     Cheers,
>
>     Ugo
>
>     [ INFO] [1291308286.662052341]:   Loaded database model with id 18737
>     [ INFO] [1291308289.346903337]:   Loaded database model with id 18736
>     terminate called after throwing an instance of 'std::bad_alloc'
>      what():  std::bad_alloc
>
>     Program received signal SIGABRT, Aborted.
>     0xb7fe2430 in __kernel_vsyscall ()
>     (gdb) backtrace
>     #0  0xb7fe2430 in __kernel_vsyscall ()
>     #1  0xb7238651 in raise () from /lib/tls/i686/cmov/libc.so.6
>     #2  0xb723ba82 in abort () from /lib/tls/i686/cmov/libc.so.6
>     #3  0xb748552f in __gnu_cxx::__verbose_terminate_handler() ()
>       from /usr/lib/libstdc++.so.6
>     #4  0xb7483465 in ?? () from /usr/lib/libstdc++.so.6
>     #5  0xb74834a2 in std::terminate() () from /usr/lib/libstdc++.so.6
>     #6  0xb74835e1 in __cxa_throw () from /usr/lib/libstdc++.so.6
>     #7  0xb7483c5f in operator new(unsigned int) () from
>     /usr/lib/libstdc++.so.6
>     #8  0xb7483d3d in operator new[](unsigned int) () from
>     /usr/lib/libstdc++.so.6
>     #9  0xb7a7f616 in VoxelGrid (this=0x1cd82d0,
>     size_x=0.28061000210046771,
>        size_y=0.27929999691247942, size_z=0.12600000074505804,
>     resolution=0.002,
>        origin_x=-0.14644000318646433, origin_y=-0.14591999891400337,
>        origin_z=-0.0050000000000000001, default_object=...)
>        at
>     /tmp/buildd/ros-cturtle-collision-environment-0.2.2/debian/ros-cturtle-collision-environment/opt/ros/cturtle/stacks/collision_environment/distance_field/include/distance_field/voxel_grid.h:193
>     #10 DistanceField (this=0x1cd82d0, size_x=0.28061000210046771,
>        size_y=0.27929999691247942, size_z=0.12600000074505804,
>     resolution=0.002,
>        origin_x=-0.14644000318646433, origin_y=-0.14591999891400337,
>        origin_z=-0.0050000000000000001, default_object=...)
>        at
>     /tmp/buildd/ros-cturtle-collision-environment-0.2.2/debian/ros-cturtle-collision-environment/opt/ros/cturtle/stacks/collision_environment/distance_field/---Type
>     <return> to continue, or q <return> to quit---
>     include/distance_field/distance_field.h:145
>     #11 0xb7a7c53b in PropagationDistanceField (this=0x1cd82d0,
>        size_x=0.28061000210046771, size_y=0.27929999691247942,
>        size_z=0.12600000074505804, resolution=0.002,
>        origin_x=-0.14644000318646433, origin_y=-0.14591999891400337,
>        origin_z=-0.0050000000000000001, max_distance=0.10000000149011612)
>        at
>     /tmp/buildd/ros-cturtle-collision-environment-0.2.2/debian/ros-cturtle-collision-environment/opt/ros/cturtle/stacks/collision_environment/distance_field/src/propagation_distance_field.cpp:49
>     #12 0x080d42f5 in
>     tabletop_object_detector::DistanceFieldFitter::initializeFromBtVectors
>     (this=0x2070080, points=...)
>        at
>     /tmp/buildd/ros-cturtle-tabletop-object-perception-0.2.1/debian/ros-cturtle-tabletop-object-perception/opt/ros/cturtle/stacks/tabletop_object_perception/tabletop_object_detector/src/model_fitter.cpp:98
>     #13 0x080d4a3f in
>     tabletop_object_detector::DistanceFieldFitter::initializeFromMesh
>     (this=0x2070080, mesh=...)
>        at
>     /tmp/buildd/ros-cturtle-tabletop-object-perception-0.2.1/debian/ros-cturtle-tabletop-object-perception/opt/ros/cturtle/stacks/tabletop_object_perception/tabletop_object_detector/src/model_fitter.cpp:210
>     #14 0x080b3fbb in
>     tabletop_object_detector::ExhaustiveFitDetector<tabletop_object_detector::IterativeTranslationFitter>::loadDatabaseModels
>     (this=0xbfffec74,
>        model_set=...)
>        at
>     /tmp/buildd/ros-cturtle-tabletop-object-perception-0.2.1/debian/ros-cturt---Type
>     <return> to continue, or q <return> to quit---
>     le-tabletop-object-perception/opt/ros/cturtle/stacks/tabletop_object_perception/tabletop_object_detector/include/tabletop_object_detector/exhaustive_fit_detector.h:216
>     #15 0x080b9fc7 in TabletopNode (this=0xbfffeba4, nh=...)
>        at
>     /tmp/buildd/ros-cturtle-tabletop-object-perception-0.2.1/debian/ros-cturtle-tabletop-object-perception/opt/ros/cturtle/stacks/tabletop_object_perception/tabletop_object_detector/src/tabletop_node.cpp:231
>     #16 0x0807d457 in main (argc=1, argv=0xbffff004)
>        at
>     /tmp/buildd/ros-cturtle-tabletop-object-perception-0.2.1/debian/ros-cturtle-tabletop-object-perception/opt/ros/cturtle/stacks/tabletop_object_perception/tabletop_object_detector/src/tabletop_node.cpp:942
>
>
>     --
>     Ugo Cupcic         |  Shadow Robot Company | ugo at shadowrobot.com
>     <mailto:ugo at shadowrobot.com>
>     Software Engineer  |    251 Liverpool Road |
>     need a Hand?       |    London  N1 1LX     | +44 20 7700 2487
>     http://www.shadowrobot.com/hand/              @shadowrobot
>
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-- 
Ugo Cupcic         |  Shadow Robot Company | ugo at shadowrobot.com
Software Engineer  |    251 Liverpool Road |
need a Hand?       |    London  N1 1LX     | +44 20 7700 2487
http://www.shadowrobot.com/hand/              @shadowrobot

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