[Paraview] Uncomplete display of large unstructured grid

[Cornelis Bockemühl]

A little after a couple of days: It turns out that while the display is now
complete, the program behaves now rather "ticklish" Doing too much of
zooming, panning etc with a large model leads to crushes of the graphics
driver (the message says explicitly!), the PV prog window becomes
completely white and the program does not react any more; has to be killed
with the task manager.

So better save as the first action after a lengthy calculation, and only
then try everytjing else to investigate the result.

Regards, Cornelis

Am 26.08.2017 23:37 schrieb "Cornelis Bockemühl" <
cornelis.bockemuehl at gmail.com>:

> 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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