[Paraview] GNOME is hanging with co-processing ...

[Andy Bauer]

Hi,

You'll probably want to use PV 5.1.2 or greater for this. Also, note that
the blog post says that the NVIDIA EGL driver minimum version needed is
355.11.

On Thu, Nov 3, 2016 at 5:52 AM, Ufuk Utku Turuncoglu (BE) <
u.utku.turuncoglu at be.itu.edu.tr> wrote:

> Hi Andy,
>
> I am trying to install ParaView with EGL under Centos 7.1 but ParaView
> configuration could not find following libraries,
>
>  EGL_gldispatch_LIBRARY           EGL_gldispatch_LIBRARY-
> NOTFOUND
>  EGL_opengl_LIBRARY              EGL_opengl_LIBRARY-NOTFOUND
>
> I checked the OS and Nvidia drivers and i confirmed that i don't have
> libGLdispatch library.
>
> BTW, i am using Nvidia driver version 352.79. It is little bit old and now
> it is 367.57. Do you think that my driver is not capable to install the
> ParaView with EGL? If this is the case, i will try to upgrade the Nvidia
> library but i just want to be sure.
>
> Thanks for your help,
> Regards,
>
> --ufuk
>
>
> On 02/11/16 17:49, Andy Bauer wrote:
>
> Hi Ufuk,
>
> I haven't heard of any issues like this. Do you get similar behavior on
> the machine when running ParaView with a separate, connected pvserver?
>
> If you have an NVIDIA card you may be able to use their EGL libs for
> offscreen rendering (i.e. no x-windows needed). See the blog post at
> https://blog.kitware.com/off-screen-rendering-through-the-
> native-platform-interface-egl/.
>
> Best,
> Andy
>
> On Wed, Nov 2, 2016 at 5:22 AM, Ufuk Utku Turuncoglu (BE) <
> u.utku.turuncoglu at be.itu.edu.tr> wrote:
>
>> Hi,
>>
>> I am trying to run a parallel code with co-processing support but when i
>> run the code, it is hanging without opening x-window and writing the png
>> files. In this case, i could not use or interact with any other app with
>> GUI such as firefox, terminal etc. It seems that it affects the GNOME. On
>> the other hand, if i connect to machine remotely via ssh and kill the MPI
>> process than the machine back to the normal and i could interact with
>> terminal and other apps with GUI nornally. The system has Centos (7.1)
>> operating system along with ParaView 5.2.0RC3 (BTW, i compiled ParaView
>> from source). In this case, i am just running the code with standard mpirun
>> command as follows,
>>
>> mpirun -np 16 ./main.x
>>
>> to find the source of the problem, i included strace command to the
>> mpirun like following
>>
>> mpirun -np 16 strace ./main.x
>>
>> and it runs without any problem and produces desired output. So, at this
>> point i am little bit confused and i just wonder that is there anybody else
>> had similar issue before. Strace somehow solves the problem but i don't
>> know how. It seems that it is related with the system because same code
>> runs without any problem under MacOS. I also compiled code with ParaView
>> 5.1 and it also hangs. The standard allinputsgridwriter.py is working
>> without any problem and writes the data to disk. So, somehow it is related
>> with the system (probably GNOME) or the ParaView installation.
>>
>> Another question is that is there any way to prevent opening x-window and
>> still getting advantage of having GPU in this case? The code only writes
>> the result in png format. So, i need installation for headless server
>> (without any screen attached) but i am not sure. I think that it requires
>> special configuration options for the ParaView installation. So, please let
>> me know also about those special options.
>>
>> Regards,
>>
>> --ufuk
>>
>>
>>
>>
>>
>>
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