[Paraview] Uncomplete display of large unstructured grid

[Cornelis Bockemühl]

Thanks Ken, this solved indeed already the problem!

It was actually already my first guess, so I went to the Intel site and
installed from there a tool that was supposed to check for potential driver
updates - which found nothing!

The driver that actually helped came finally from the Lenovo site.

Regards, Cornelis

Am 26.08.2017 07:42 schrieb "Ken Martin" <ken.martin at kitware.com>:

> If possible can you try updating the Intel driver for your HD4000 and see
> if that makes a difference?
>
> https://downloadcenter.intel.com/product/81499/Intel-HD-Graphics-4000
>
>
>
> On Fri, Aug 25, 2017 at 11:11 PM, Cornelis Bockemühl <
> cornelis.bockemuehl at gmail.com> wrote:
>
>> Hello all,
>>
>> With some self-written plugin I am generating rather large "unstructured
>> grids". With a model with something more than 700'000 blocks I realized
>> that on my Lenovo notebook I did not get a complete display of all the
>> blocks, so I made tests with subsets of the data. It turns out that with
>> less than 1000 blocks everything works fine, with 20'000 blocks there are
>> already some "reductions" and finally with the full model even more: see
>> the attached Powerpoint with screenshots (plus details about my system and
>> the Paraview version).
>>
>> My question is now if there is possibly some kind of "graphic card
>> overflow" happening? I could so far not test the software with the same
>> model on another computer.
>>
>> And whatever the reason is: is there something that I can do about it?
>>
>> It is to say that the unstructured grid is a bit "unconventional" by the
>> fact that often adjacent blocks do not have common edges and points,
>> sharing thus only common partial faces. With this one possibility would be
>> that Paraview cannot properly carry out certain optimizations that are
>> relying on the fact that neighbor blocks "normally" (??) share a face,
>> edges and points. However I do not know whether this is an issue or not!?
>> In this case it might be an option to change the entire data set to a set
>> of just cubes that happen to touch each other.
>>
>> Regards, Cornelis
>>
>> --
>> Cornelis Bockemühl
>> Basel, Schweiz
>>
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>
>
> --
> Ken Martin PhD
> Distinguished Engineer
> Kitware Inc.
> 28 Corporate Drive
> Clifton Park NY 12065
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