[MVAPICH-discuss] Install MVAPICH 1

[Stecher, Fred]

Jonathan,
What I am saying is that when I monitor the network while my application
is running, no packets are being transferred over InfiniBand, while
Ethernet is busy. Maybe the SGI Clustervis monitor software is not
catching the InfiniBand traffic. It outputs every 2 seconds. Is there
another interactive utility that I can use to monitor the networks while
my program is executing?

Thanks,

Fred
 

-----Original Message-----
From: Jonathan Perkins [mailto:perkinjo at cse.ohio-state.edu] 
Sent: Monday, April 14, 2008 3:35 PM
To: Stecher, Fred
Subject: Re: [MVAPICH-discuss] Install MVAPICH 1

On Mon, Apr 14, 2008 at 02:34:28PM -0500, Stecher, Fred wrote:
> Jonathan,
> You were right. The new build used the PGI compilers. I have rebuilt 
> the executable with the gen2 version of MVAPICH. I restarted my run 
> and InfiniBand was not used. I then ran the osu_bw program with the 
> following results:
> # OSU MPI Bandwidth Test v3.0
> # Size        Bandwidth (MB/s)
> 1                         2.46
> 2                         5.07
> 4                         9.83
> 8                        18.69
> 16                       35.98
> 32                       69.31
> 64                      125.95
> 128                     225.55
> 256                     354.17
> 512                     491.20
> 1024                    615.13
> 2048                    727.53
> 4096                    795.82
> 8192                    861.88
> 16384                   858.40
> 32768                   906.21
> 65536                   931.13
> 131072                  943.26
> 262144                  949.19
> 524288                  952.36
> 1048576                 954.01
> 2097152                 954.83
> 4194304                 955.25
> 
> I have attached the log files.
> 
> Thanks,
> 
> Fred

I'm not quite sure what is being asked here.  The osu_bw numbers seem to
indicate that Infiniband is being used.  Are you saying that your
application is still not using Infiniband even after recompiling it or
are you saying that it is now working?

--
Jonathan Perkins
http://www.cse.ohio-state.edu/~perkinjo