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

[Utkarsh Ayachit]

John,

What did you use for your memory profiling?

Utkarsh

On Tue, Jan 10, 2012 at 9:51 AM, Biddiscombe, John A. <biddisco at cscs.ch>wrote:

>  Takuya****
>
> ** **
>
> Running a test of coprocessing on a very small simulation using just 2
> cores on the desktop, I am seeing what looks like a very small leak. Over
> about 30 iterations, it’s of the order of 30MB, so might not be real (need
> to test on a bigger domain to see if it grows faster), but the trend looks
> credible. I’ll see if I can pinpoint where the loss is occurring.****
>
> ** **
>
> JB****
>
> ** **
>
> ****
>
> ** **
>
> -----Original Message-----
> From: paraview-bounces at paraview.org [mailto:paraview-bounces at paraview.org]
> On Behalf Of Takuya OSHIMA
> Sent: 10 January 2012 15:11
> To: paraview at paraview.org
> Subject: Re: [Paraview] Unreclaimed memory in coprocessing? (PV 3.12.0 and
> git-master)
>
> ** **
>
> 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****
>
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