Re: [gts-general] memory issue while remeshing

[Márcio R. P. <pi...@gm...>]

and what GLib version do you use?

On 16 March 2011 16:43, Luis Saavedra <lui...@gm...> wrote:

> 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
>
>
> ------------------------------------------------------------------------------
> 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