[Paraview] ParaView Digest, Vol 65, Issue 92

[Berk Geveci]

Hi Christine,

This is expected. The renders are always initiated by the client
(through user action) and the timer log is recording this fact. The
number the timer log is reporting is the total time it takes for the
client to tell the server to render, the server to render in parallel,
to composite and to send the image to the client and finally for the
client to display this image.

-berk

On Mon, Sep 28, 2009 at 12:17 PM, Christine Corbett Moran
<corbett at physik.uzh.ch> wrote:
> Hi Jean,
>
> I had previously done this, as well as the test (for my test I set the
> pixel size to 20, and I clearly see the large ones during interaction)
> but when I run the timer log, the rendering always shows up as a local
> process while if I do analysis (thresholding on a variable value for
> example) it does show up in the Server section under each process.
>
> *E.g. for some interactive rendering I get
> Local Process
> Interactive Render,  0.111477 seconds
> Interactive Render,  0.094096 seconds
> ...
> Still Render,  1.2302 seconds
> Server, Process 0
> Server, Process 1
> Server, Process 2
> Server, Process 3
>
> While for a threshold I get
> Local Process
> Interactive Render,  0.111477 seconds
> ..
> Still Render,  1.2302 seconds
> Still Render,  0.116044 seconds
> Server, Process 0
> Execute vtkThreshold id: 2054,  1.04218 seconds
> Execute vtkPVGeometryFilter id: 2087,  0.020597 seconds
> Server, Process 1
> Execute vtkThreshold id: 2054,  0.987578 seconds
> Execute vtkPVGeometryFilter id: 2087,  0.020291 seconds
> ...
>
> I do get server processes in the timer log but only when I first open the file:
> Server, Process 0
> Execute vtkTipsyReader id: 2664,  2.84199 seconds
> Execute vtkPVGeometryFilter id: 2712,  0.062723 seconds
> ...
>
> After that, during and after interaction I do not see server processes
> appearing in the log. This made me think that after this point, the
> rendering was done on the client. Is the timer log not behaving as I
> expected?
>
> Christine
>
>> Message: 2
>> Date: Mon, 28 Sep 2009 11:31:41 +0200
>> From: "Jean M. Favre" <jfavre at cscs.ch>
>> Subject: Re: [Paraview] forcing server to do all
>>        computations/rendering; unrelated, rendering    vertices as pixels
>> Cc: paraview at paraview.org
>> Message-ID: <4AC0827D.3040004 at cscs>
>> Content-Type: text/plain; charset=ISO-8859-1
>>
>> Christine Corbett Moran wrote:
>>> Hi,
>>>
>>> I have two questions I am hoping someone can give me some insight on.
>>>
>>> 1. How to force the server to do all computations and rendering?
>>> After playing around with the ParaView server settings, I haven't yet
>>> been able to force the server to do all computations and rendering,
>>> only sending images to the client. I want to do this for testing
>>> purposes. Is there a way to do this easily?
>>
>>
>> under Edit->Settings->Render View->Server
>>
>> set the Remote Render Threshold to 0 and the servers will do all
>> rendering. An easy way to check is that during interactive rendering, if
>> you enable "interactive Subsample Rate", you will see fat pixels
>> rendered. That is the image composited server-side, then sub-sampled,
>> and sent over to the client for display.
>>
>> Jean--
>> Swiss National Supercomputing Center
>>
>>
>>
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