[Paraview] Paraview v5.1.2: SurfaceLIC & software rendering issues

[Albina, Frank]

Benson,
I won't be able to provide you with the dataset you are requesting since the IP is protected. I might be able to provide it to Kitware for debugging purposes with the condition of not distributing it to any third parties. However, I can access your request to share the benchmarking code.
Please find attached the code I am using for my benchmark.
Hope you will find it useful.
Nonetheless, I would it useful if someone could point me towards a resolution of the issue I reported in my original email.
Regards,
Frank.
From: Benson Muite [mailto:benson_muite at yahoo.com]
Sent: Montag, 26. September 2016 11:30
To: Albina, Frank; paraview at paraview.org
Cc: Del Citto, Francesco
Subject: Re: [Paraview] Paraview v5.1.2: SurfaceLIC & software rendering issues


Both would be great if possible.

On 09/26/2016 12:22 PM, Albina, Frank wrote:
Benson,

do you need the data and the example code, or only the example code?

Frank.

From: Benson Muite [mailto:benson_muite at yahoo.com]
Sent: Montag, 26. September 2016 11:17
To: Albina, Frank; paraview at paraview.org<mailto:paraview at paraview.org>
Cc: Del Citto, Francesco
Subject: Re: [Paraview] Paraview v5.1.2: SurfaceLIC & software rendering issues


Hi,

Is the benchmark available? Would be interested in looking at this if possible to get example code.

Regards,

Benson

On 09/26/2016 11:55 AM, Albina, Frank wrote:
Dear all,

I have downloaded from the paraview.org the latest binaries for Linux of ParaView v5.1.2. My main purpose is to make use of ParaView with software rendering in a clustered environment without GPU and, as such, I have been going through my small benchmark on a generic F1 car.

This what I have found so far when generating a SurfaceLIC representation on the whole car surface in batch mode.

Using pvbatch -mesa-llvm works fine. This is one of the produced images for reference:
[cid:image001.jpg at 01D21801.1883A400]
Using 4 cores to perform the same task (with the same script) with mpiexec -np 4 pvbatch --mesa-llvm shows a good speed-up but the background is black instead of white (although view.Backgound = [1,1,1] is set explicitely), as shown hereafter:

[cid:image002.jpg at 01D21801.1883A400]

On the same server (Intel Xeon ES-2650 v3), the CPU is AVX2 capable, so I tried also the same script with pvbatch --mesa-swr-avx2. The image background is corrupted with leftover frames apparently, as shown hereafter:

[cid:image003.jpg at 01D21801.1883A400]
Was this behavior to be expected?

Please let me know if there is any interest in providing with my benchmark.

Frank Albina









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