[Paraview-developers] memory Leak by MultiBlockData Set

[Julia Fischer]

Hello again

I just realized , I forgot the xml file in my tar file

Thanks !

Julia

On 6 July 2016 at 22:23, Julia Fischer <julia.ute.fischer at gmail.com> wrote:

> Hello everyone,
>
>
> I am  having a hard time by using a vtkMultiBlockDataSet , I have attached
> a small but working example of what I want to achieve, a dummy reader , it
> does not read but add a bunch of vtkStructuredGrid's
>
> My problem is a bit more complex, but long story short; I have a
> hierarchical vtkMultiBlockDataSet
>
> vtkMultiBlockDataSet (level0)   declared using a
> vtkSmartPointer<vtkMultiBlockDataSet>
> -vtkMultiBlockDataSet (level1)
> --vtkMultiBlockDataSet (level2)
> --vtkMultiBlockDataSet (level2)
> ---vtkStructucuredGrid (level3)
> ---vtkStructucuredGrid (level3)
> ---vtkStructucuredGrid (level3)
> --vtkMultiBlockDataSet (level2)
>
> In my RequestData I create the structure  all with smart pointers, if it
> is not created ,  and flag is set  to avoid creating again the skeleton
> *** if !this->rootMB_init ***
>
> I use a vtkIntProperty (Select Block)  to tell the server to fill up any
> level3 (StructuredGrid), for example
> SelectBlock: 4 -> Apply, (it loads grid 4, marked as unloaded )
> SelectBlock:-1 -> Apply (nothing)
> SelectBlock:4 -> Apply (unload grid 4 , since is loaded and marked as
> loaded )
>
> when I repeat the sequence with several blocks  the memory is not being
> released somehow. I think my problem is here, but i cannot see it..
>
> if (block loaded)  //line 110
> {
>       vtkSmartPointer<vtkStructuredGrid>grid=ReadGrid(500 ,0.01, iL3 ,
> iL3, iL3);  //500x500x500 nodes ~2.6GB
>       vtkMultiBlockDataSet->SetBlock(block, grid);
> }
> else if ( !blockIsLoaded)  //line 118
> {
>
> vtkSmartPointer<vtkStructuredGrid>grid=vtkSmartPointer<vtkStructuredGrid>::New()
>        vtkMultiBlockDataSet->SetBlock(block, grid);
>        isBlockLoaded=false;
> }
>
>
> maybe I am initializing wrong . I have read the recommendations about
> vtkSmartPointer . Smart pointers for new objects and std pointer
> (vtkMultiBlockDataSet *, etc) for references
>
> In order to compile just  untar  ; cd build  , cmake .. ; make   the
> extension is *.mem i have included an empty  dummy.mem for reading
>
> maybe you can give me a  hint , or an advice of a better way to
>
> Thank you so much in advance
>
> Julia
>
>
>
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