[Paraview] Unreclaimed memory in coprocessing? (PV 3.12.0 and git-master)

[Takuya OSHIMA]

Attached in the previous mail is a sample Python coprocessing script
that exhibits the problem (written by the coprocessing script
generator of git-master as of today).

Takuya

Takuya OSHIMA, Ph.D.
Faculty of Engineering, Niigata University
8050 Ikarashi-Ninocho, Nishi-ku, Niigata, 950-2181, JAPAN

From: Takuya OSHIMA <oshima at eng.niigata-u.ac.jp>
Subject: Unreclaimed memory in coprocessing? (PV 3.12.0 and git-master)
Date: Tue, 10 Jan 2012 23:08:21 +0900 (JST)

> Hi,
> 
> I am having a problem where the memory usage of my simulation program
> which links with the PV coprocessing library grows until it gets
> killed by the operating system.
> 
> I have the following piece of code for triggering coprocessing and if
> I watch the memory usage with the ps/top commands it grows only at the
> timestep where this->Processor->CoProcess() is called. My simulation
> program uses vtkImageData as underlying data structure so no data
> format adaptation (that may involve allocating extra memory for data
> copy) is performed.
> 
>   this->DataDescription->SetTimeData(this->TimeInfo->GetTimeValue(),
>       this->TimeInfo->GetTIter());
>   if (this->Processor->RequestDataDescription(this->DataDescription))
>     {
>     vtkCPInputDataDescription *idd
>         = this->DataDescription->GetInputDescriptionByName("input");
>     // obtain vtkImageData to coprocess from my simulation program
>     vtkImageData *grid = this->TimeInfo->GetGrid();
>     idd->SetWholeExtent(grid->GetWholeExtent());
>     idd->SetGrid(grid);
>     // now call the coprocessing library
>     this->Processor->CoProcess(this->DataDescription);
>     }
> 
> Besides, the Apple's "leaks" tool shows no meaningful leaks which
> makes me wonder if e.g. there are un-unregistered proxies than simply
> unmatched New()/Delete() or new/delete pairs.
> 
> The problem is same for PV 3.12.0 and the git master as of today.
> Is anybody else having the problem? Any ideas?
> 
> Thanks,
> Takuya
> 
> Takuya OSHIMA, Ph.D.
> Faculty of Engineering, Niigata University
> 8050 Ikarashi-Ninocho, Nishi-ku, Niigata, 950-2181, JAPAN