[Paraview] big delays in parallel

[Utkarsh Ayachit]

Paul,

Looking at the log, doesn't look like any of the filters is taking
time. Any possibility of attaching to the server processes while it's
waiting and looking at the call stack? I could not reproduce this on
my machine, fyi.

Utkarsh

On Tue, May 4, 2010 at 10:03 AM, Paul Edwards <paul.m.edwards at gmail.com> wrote:
> Below is the timer log - I cleared the log and reapplied the extract block
> filter:
>
> 8<------------------------------------------------------------------------
> Local Process
> Still Render,  0.232783 seconds
>     Execute vtkPolyDataMapper id: 253,  0.000132 seconds
> Still Render,  0.296391 seconds
>     Execute vtkMPIMoveData id: 21893,  0.04249 seconds
>     Execute vtkPolyDataMapper id: 21532,  0.000242 seconds
>     Execute vtkPolyDataMapper id: 253,  9.8e-05 seconds
>     Execute vtkPolyDataMapper id: 21532,  7.1e-05 seconds
>
>
>
> Server, Process 0
> Execute vtkExtractBlock id: 21466,  0.00187 seconds
> Execute vtkPVGeometryFilter id: 21526,  0.003053 seconds
>     vtkPVGeometryFilter::RequestData,  0.001736 seconds
>         vtkPVGeometryFilter::RequestCompositeDa,  0.001698 seconds
>             vtkPVGeometryFilter::CheckAttributes,  3.5e-05 seconds
>             vtkPVGeometryFilter::ExecuteCompositeDa,  0.000278 seconds
>             vtkPVGeometryFilter::FillPartialArrays,  4.8e-05 seconds
>             Append Blocks,  0.000162 seconds
>     vtkPVGeometryFilter::GarbageCollect,  0.00111 seconds
> Execute vtkPVCacheKeeper id: 21890,  0.000132 seconds
> Execute vtkMPIMoveData id: 21893,  0.007764 seconds
>     Dataserver gathering to 0,  0.00541 seconds
>     Dataserver sending to client,  0.001424 seconds
> Execute vtkOrderedCompositeDistributor ,  0.000284 seconds
>
> Server, Process 1
> Execute vtkExtractBlock id: 21466,  0.001936 seconds
> Execute vtkPVGeometryFilter id: 21526,  0.002713 seconds
>     vtkPVGeometryFilter::RequestData,  0.001588 seconds
>         vtkPVGeometryFilter::RequestCompositeDa,  0.001561 seconds
>             vtkPVGeometryFilter::CheckAttributes,  4e-05 seconds
>             vtkPVGeometryFilter::ExecuteCompositeDa,  0.000226 seconds
>             vtkPVGeometryFilter::FillPartialArrays,  5.5e-05 seconds
>             Append Blocks,  0.000183 seconds
>     vtkPVGeometryFilter::GarbageCollect,  0.000989 seconds
> Execute vtkPVCacheKeeper id: 21890,  6.9e-05 seconds
> Execute vtkMPIMoveData id: 21893,  0.001792 seconds
>     Dataserver gathering to 0,  0.001589 seconds
> Execute vtkOrderedCompositeDistributor ,  0.000171 seconds
> ------------------------------------------------------------------------>8
> Regards,
> Paul
> On 4 May 2010 14:42, David E DeMarle <dave.demarle at kitware.com> wrote:
>>
>> Can you post the (Tools->)Timer log?
>>
>> David E DeMarle
>> Kitware, Inc.
>> R&D Engineer
>> 28 Corporate Drive
>> Clifton Park, NY 12065-8662
>> Phone: 518-371-3971 x109
>>
>>
>>
>> On Tue, May 4, 2010 at 9:02 AM, Paul Edwards <paul.m.edwards at gmail.com>
>> wrote:
>> > Hi,
>> > I'm noticing big delays when running in ParaView in parallel (running 2
>> > cores on latest ParaView version with OpenMPI v1.2.6).  To reproduce:
>> >
>> > create sphere
>> > create cone
>> > group datasets (group the sphere and cone)
>> > extract block (and select one of the objects)
>> >
>> > The first time the extract block filter is called it will hang for about
>> > 15
>> > seconds.  After the first update it is instant when reapplying after
>> > changing the block to extract.  But, this will happen again if I delete
>> > the
>> > extract block filter and add another one.  I tried debugging this but
>> > the
>> > hanging occurs after the RequestData for both processes.  Does anyone
>> > know
>> > what could be happening?  Or, can anyone give any advice for what to
>> > try?
>> > Thanks in advance,
>> > Paul
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>
>
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