[Paraview] Crash when extracting surface in a big mesh

[Paul Edwards]

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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