[Paraview] Multiple paraview instances in MPI standalone mode

[Gregory, David C CIV NSWCDD, G24]

The command to run on 8 processors would be
 
mpirun -np 8 paraview
 
whether that gives the "fastest performance" is a much more complex
issue.
 
-David
 

	-----Original Message-----
	From: paraview-bounces+david.c.gregory=navy.mil at paraview.org
[mailto:paraview-bounces+david.c.gregory=navy.mil at paraview.org] On
Behalf Of Bikash Agarwal
	Sent: Monday, April 02, 2007 3:04 PM
	To: eschenbe at psc.edu
	Cc: ParaView
	Subject: Re: [Paraview] Multiple paraview instances in MPI
standalone mode
	
	
	I'm sorry for being naive. Very new to mpi and parallel
processing. How do I run paraview on a machine with 8 processors so that
I can get the fastest performance?
	
	Bikash
	
	
	
	On 4/2/07, Kent Eschenberg <eschenbe at psc.edu> wrote: 

		Bikash Agarwal wrote:
		> When running paraview 2.6 in MPI mode on a single
machine, why does it
		> open one instance of paraview for each processor? When
I use,
		> mpirun -np 2 ./paraview
		> it opens up 2 instances of paraview. 
		
		??? That's what you asked it to do with "-np 2". Each
		instance knows it is using MPI and so uses the MPI
library
		to connect to the other instances. "mpirun" will spread
the
		instances out over as many processors as are available
to it 
		(one, in this case).
		
		Kent
		


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