[Beowulf] Measuring port to port latency

[richard.walsh at comcast.net]

Carsten,

The Intel MPI Benchmarks (formerly Pallas MPI Benchmarks) are a good
choice for measuring a range of MPI driven network performance features.
There is a nice technical summary defining exactly what is being measured
and how.

They are at:

http://www.intel.com/cd/software/products/asmo-na/eng/cluster/clustertoolkit/219848.htm

Enjoy!

rbw
-- 

"Making predictions is hard, especially about the future." 

Niels Bohr 

-- 

Richard Walsh 
Thrashing River Consulting-- 
5605 Alameda St. 
Shoreview, MN 55126 

Phone #: 612-382-4620

-------------- Original message -------------- 
From: Carsten Aulbert <carsten.aulbert at aei.mpg.de> 

> Hi, 
> 
> since the rush of emails seems to be over right now, I would like to 
> start another thread. How are you measuring port to port latency in your 
> network easily? 
> 
> So far, I have found a small MPI-pingpong code at 
> 
> http://cluster.fisica.unam.mx/curso/mpi_intro/para_pingpong.html 
> 
> as well as netpipe at 
> 
> http://www.scl.ameslab.gov/Projects/Netpipe/ 
> 
> They look fine on their own, but since I'm just starting, any opinions? 
> 
> Cheers 
> 
> Carsten 
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