[Paraview] Crash when extracting surface in a big mesh

[Paul Edwards]

This is running the latest CVS version, linux (Suse 9.3) and 64bit.
It is definitely not a problem with memory allocation - the machine
has 64GB of RAM and it was only using about 14GB for the mesh with
solution (even less for the example in the last email).  I did have a
quick try changing the variable to unsigned int but there were other
problems.    I understand people use ParaView for much bigger meshes
but it must just be because it is all in one block.

Regards,
Paul

2008/10/27 Michael Jackson <mike.jackson at bluequartz.net>:
> Looks like you may be running into a 32/64 bit bug. Does the program crash
> because it can not allocate enough memory or something else. Your gdb
> session below seems to indicate that the length variable needs to be a 64
> bit value, or at least unsigned.
>
> What system/compiler is this on?
> _________________________________________________________
> Mike Jackson                  mike.jackson at bluequartz.net
> BlueQuartz Software                    www.bluequartz.net
> Principal Software Engineer                  Dayton, Ohio
>
>
>
> On Oct 27, 2008, at 12:28 PM, Paul Edwards wrote:
>
>> Has anyone else experienced this problem?  Is it just because I have
>> so many cells in one block?  To reproduce: compile structured grid
>> generator that is attached, create grid with dimensions 1000 x 1000 x
>> 80, use clean to grid to make unstructured, and then try viewing the
>> surface.
>>
>> Note: this uses quite a bit of memory....
>>
>> Regards,
>> Paul
>>
>> 2008/10/17 Edwards, Paul <Paul.Edwards3 at rolls-royce.com>:
>>>
>>> I think this int needs to be unsigned (or more bits)…..
>>>
>>>
>>>
>>> (gdb) frame 3
>>>
>>> #3  0x00002aaab2c053ea in vtkDataSetSurfaceFilter::NewFastGeomQuad
>>> (this=0x14fe670, numPts=4)
>>>
>>>   at
>>>
>>> /tmp/padramgui-1.1/tmp/src/paraview/VTK/Graphics/vtkDataSetSurfaceFilter.cxx:1730
>>>
>>> 1730        this->FastGeomQuadArrays[this->NextArrayIndex]
>>>
>>> (gdb) list
>>>
>>> 1720            }
>>>
>>> 1721          }
>>>
>>> 1722        delete [] this->FastGeomQuadArrays;
>>>
>>> 1723        this->FastGeomQuadArrays = newArrays;
>>>
>>> 1724        this->NumberOfFastGeomQuadArrays = num;
>>>
>>> 1725        }
>>>
>>> 1726
>>>
>>> 1727      // Next: allocate a new array if necessary.
>>>
>>> 1728      if (this->FastGeomQuadArrays[this->NextArrayIndex] == NULL)
>>>
>>> 1729        {
>>>
>>> 1730        this->FastGeomQuadArrays[this->NextArrayIndex]
>>>
>>> 1731          = new unsigned char[this->FastGeomQuadArrayLength];
>>>
>>> 1732        }
>>>
>>> 1733
>>>
>>> 1734      vtkFastGeomQuad* q = reinterpret_cast<vtkFastGeomQuad*>
>>>
>>> 1735        (this->FastGeomQuadArrays[this->NextArrayIndex] +
>>> this->NextQuadIndex);
>>>
>>> 1736      q->numPts = numPts;
>>>
>>> 1737
>>>
>>> 1738      this->NextQuadIndex += polySize;
>>>
>>> 1739
>>>
>>> (gdb) print this->FastGeomQuadArrayLength
>>>
>>> $2 = -1721647736
>>>
>>> (gdb) whatis this->FastGeomQuadArrayLength
>>>
>>> type = int
>>>
>>> (gdb)
>>>
>>>
>>>
>>> More than just that variable needs to be updated though.
>>>
>>>
>>>
>>> I experienced this when viewing the surface of a mesh with 90M cells on a
>>> single machine.  Cuts worked without any problems.
>>>
>>>
>>>
>>> Regards,
>>>
>>> Paul
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>>
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