[Paraview] ParaView parallel - CPU-exhaustion

[Natalie Happenhofer]

Thanks a lot.

Actually, I tried now to start the pvserver with mpirun -np 4 -mca mpi_yield_when_idle 1 pvserver , but I did not observe any differences to mpirun -np 4 -mca mpi_yield_when_idle 0 pvserver in the CPU-usage. 

Greets, 
Natalie

From: kmorel at sandia.gov
To: nataliehapp at hotmail.com; paraview at paraview.org
Date: Thu, 1 Jul 2010 10:37:21 -0600
Subject: Re: [Paraview] ParaView parallel - CPU-exhaustion





Re: [Paraview] ParaView parallel - CPU-exhaustion


Natalie,



An explanation about the continual use of CPUs can be found on this wiki page:



http://www.paraview.org/Wiki/Setting_up_a_ParaView_Server#Server_processes_always_have_100.25_CPU_usage



The licensing of ParaView is fully open, so there should be no problem installing on the VSC.



File format for large scale parallel file access is a sticky issue right now.  Parallel file formats are still evolving.  The HDF5 library included with the ParaView build is used for the XDMF reader and, yes, it is designed to do coordinated parallel reads.  As such, it is probably a good first choice for files read on a large computer.



-Ken





On 7/1/10 6:47 AM, "Natalie Happenhofer" <nataliehapp at hotmail.com> wrote:



Hi!



I have recently noticed, that when starting the pvserver in parallel mode, it uses the full capacity of all CPU's it's started at, regardless if there is actually something visualized or not. Is there any option to prevent this?



Apart from there is the idea to install ParaView at the new supercomputer in Vienna, the VSC (Vienna Scientific Cluster). Since it is open source, I suppose, there are no judicial problems, but please correct me if I am wrong. 



So I wanted to ask about parallel reading of files and so on - ParaView does that for sure, but honestly, I don't really know which fileformat this requires. HDF5 can be read correctly, I think, since there is a compiler option, but other file formats - it would be nice if you could point me somewhere to read about "ParaView on supercomputers". 



Thanks a lot!



Kind regards,

Natalie Happenhofer 











       

Descubre un nuevo Hotmail: con más herramientas para una vida más práctica. Muy pronto.  Ver más <http://www.nuevohotmail.com> 





   ****      Kenneth Moreland

    ***      Sandia National Laboratories

***********  

*** *** ***  email: kmorel at sandia.gov

**  ***  **  phone: (505) 844-8919

    ***      web:   http://www.cs.unm.edu/~kmorel



 		 	   		  
_________________________________________________________________
Pronto descubrirás un nuevo Hotmail. Nos estamos reinventando. Prepárate para lo que se viene.
http://www.nuevohotmail.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.paraview.org/pipermail/paraview/attachments/20100702/87e1a9cc/attachment.htm>