[Paraview] pv3 - server always shows 100% cpu usage

[Moreland, Kenneth]

Funny.  I get the opposite effect.  The root node of my server is pretty
much idle whereas all the others are at 100%.

I am absolutely positive this is just an artifact of the implementation
of the underlying socket and MPI libraries, respectively.  I attached a
debugger to a server and verified that while the server is "idle," node
0 is waiting for the select function to finish and all other nodes are
waiting for the MPI_Recv function to finish.  I placed breakpoints right
after these functions and saw that they never returned until after I did
something with the client.

-Ken

> -----Original Message-----
> From: paraview-bounces+kmorel=sandia.gov at paraview.org
[mailto:paraview-
> bounces+kmorel=sandia.gov at paraview.org] On Behalf Of John Biddiscombe
> Sent: Friday, September 21, 2007 4:58 AM
> To: ParaView at paraview.org
> Subject: [Paraview] pv3 - server always shows 100% cpu usage
> 
> When running pv3 (pvserver), utilities like top and any other system
> monitoring tools always show 100% (or at least whenever I look at
them)
> cpu usage - even when nothing is going on and the server should have
> been idle for hours. I suspect something fishy is going on at the
> server-client connection and the server is constantly polling to see
if
> any new messages are ready.
> 
> Can anyone confirm/deny or explain if there is a 'problem' - is this a
> design feature?
> 
> thanks
> 
> JB
> 
> --
> John Biddiscombe,                            email:biddisco @ cscs.ch
> http://www.cscs.ch/about/BJohn.php
> CSCS, Swiss National Supercomputing Centre  | Tel:  +41 (91) 610.82.07
> Via Cantonale, 6928 Manno, Switzerland      | Fax:  +41 (91) 610.82.82
> 
> 
> _______________________________________________
> ParaView mailing list
> ParaView at paraview.org
> http://www.paraview.org/mailman/listinfo/paraview