Re: [gts-general] memory issue while remeshing

[Luis S. <lui...@gm...>]

2011/3/16 Luis Saavedra <lui...@gm...>

> 2011/3/16 Márcio Ricardo Pivello <pi...@gm...>
>
>> Luis, what is the configuration of your system?
>>
>>
>>
>> On 16 March 2011 12:33, Luis Saavedra <lui...@gm...> wrote:
>>
>>> 2011/3/15 Márcio Ricardo Pivello <pi...@gm...>
>>>
>>>> Hi all
>>>>
>>>> I've had some memory issues with GTS about remeshing so I decided to run
>>>> a very simple test, which is reproduced bellow. The test is simple:
>>>>
>>>> 1. create a sphere using gts_surface_generate_sphere
>>>> 2. n_edges = gts_surface_edge_number(s)
>>>>    n_edges_coarsen = 0.7*n_edges
>>>>    n_edges_refine = n_edges
>>>> 3. Enter a loop:
>>>> 3.1 apply gts_surface_coarsen using Lindstrom & Turk's algorithm and
>>>> edge number as the stop criteria. stopdata = n_edges_coarsen
>>>> 3.2 apply gts_surface_refine with default functions and stop_number as
>>>> the stop critera. stop_data = n_edges_refine. The idea is to return the mesh
>>>> to its original vertex_number, edge_number and face_number
>>>>
>>>> If I run this loop long enough I'll eventually run out of memory (8 GB
>>>> RAM).
>>>>
>>>> How can I solve this problem?
>>>>
>>>> Could it be a bug in the *object_destroy functions?
>>>>
>>>> ------------------------------------
>>>> code
>>>> ------------------------------------
>>>>
>>>>
>>>> #include "lagrangian.h"
>>>> static gboolean stop_number (gdouble cost, guint number, guint * max)
>>>> {
>>>>    if (number > *max)
>>>>       return TRUE;
>>>>    return FALSE;
>>>> }
>>>>
>>>> int main(int argc, char** argv)
>>>> {
>>>>
>>>>    GtsVolumeOptimizedParams params;
>>>>    params.volume_weight = 0.5;
>>>>    params.boundary_weight = 0.5;
>>>>    params.shape_weight = 1.0e+2;
>>>>    GtsSurface *s = gts_surface_new(gts_surface_class(),
>>>> gts_face_class(), gts_edge_class(), gts_vertex_class());
>>>>    s=gts_surface_generate_sphere(s,7);
>>>>    int n_edges_coarsen = 0.7*gts_surface_edge_number(s);
>>>>    int n_edges_refine = gts_surface_edge_number(s);
>>>>    int n=0, i=0;
>>>>    double min_angle = 5.0*DEGREES_TO_RADIANS;
>>>>    for(i=0;i<1000;++i)
>>>>    {
>>>>
>>>> gts_surface_coarsen(s,(GtsKeyFunc)gts_volume_optimized_cost,&params,(GtsCoarsenFunc)gts_volume_optimized_vertex,&params,(GtsStopFunc)gts_coarsen_stop_number,
>>>> &n_edges_coarsen, min_angle);
>>>>       gts_surface_refine(s,NULL,NULL,NULL,NULL,stop_number,
>>>> &n_edges_refine);
>>>>    }
>>>>
>>>>
>>>>    return 0;
>>>> }
>>>>
>>>>
>>>> Thanks for helping
>>>>
>>>>
>>>>
>>>> Márcio
>>>>
>>>> --
>>>> Márcio Ricardo Pivello
>>>> Universidade Federal de Uberlândia
>>>> Faculdade de Engenharia Mecânica
>>>> Laboratório de Mecânica dos Fluidos
>>>> +55 (34) 3239 4040 ramal 618
>>>>
>>>>
>>>> ------------------------------------------------------------------------------
>>>> Colocation vs. Managed Hosting
>>>> A question and answer guide to determining the best fit
>>>> for your organization - today and in the future.
>>>> http://p.sf.net/sfu/internap-sfd2d
>>>> _______________________________________________
>>>> Gts-general mailing list
>>>> Gts...@li...
>>>> https://lists.sourceforge.net/lists/listinfo/gts-general
>>>>
>>>>
>>> Hi Márcio,
>>>
>>> I compiled and run the example (attached) and I have no problems you
>>> mentioned, for this reason, I would like you to tell us what operating
>>> system you use and what is you version of GTS in order to suggest some possible
>>> solutions.
>>>
>>> regards,
>>> Luis.
>>>
>>>
>>> ------------------------------------------------------------------------------
>>> Colocation vs. Managed Hosting
>>> A question and answer guide to determining the best fit
>>> for your organization - today and in the future.
>>> http://p.sf.net/sfu/internap-sfd2d
>>> _______________________________________________
>>> Gts-general mailing list
>>> Gts...@li...
>>> https://lists.sourceforge.net/lists/listinfo/gts-general
>>>
>>>
>>
>>
>> --
>> Márcio Ricardo Pivello
>> Universidade Federal de Uberlândia
>> Faculdade de Engenharia Mecânica
>> Laboratório de Mecânica dos Fluidos
>> +55 (34) 3239 4040 ramal 618
>>
>>
>> ------------------------------------------------------------------------------
>> Colocation vs. Managed Hosting
>> A question and answer guide to determining the best fit
>> for your organization - today and in the future.
>> http://p.sf.net/sfu/internap-sfd2d
>> _______________________________________________
>> Gts-general mailing list
>> Gts...@li...
>> https://lists.sourceforge.net/lists/listinfo/gts-general
>>
>>
>
> ubuntu 10.10, but gts version is from gnugts.org:
>
> $ svn co http://svn.gnugts.org/trunk gnugts
>
> then, I configure with:
>
> $ ./autogen.sh --disable-shared --enable-static CFLAGS='-O0 -ggdb'
>
> and
>
> $ make
>
> I needed gtk-doc-tools package,
>
> regards,
> Luis
>

same with

$ ./autogen.sh --disable-shared --enable-static CFLAGS='-O1'

options (42.7MiB used),

regards,
Luis