[openib-general] [openfabrics-ewg] RE: OFED-1.0-rc6 is available

[Pavel Shamis (Pasha)]

We also did performance checks on different platforms, and the default
MTU was changed to 1K (The 2k is more optimal for ddr platforms)
Thank you for pointing the issue.

Pavel Shamis (Pasha)

Scott Weitzenkamp (sweitzen) wrote:
> The MTU change undos the changes for bug 81, so I have reopened bug 81 
> (http://openib.org/bugzilla/show_bug.cgi?id=81).
>  
> With rc6, PCI-X osu_bw and osu_bibw performance is bad, and PCI-E 
> osu_bibw performance is bad.  I've enclosed some performance data, look 
> at rc4 vs rc5 vs rc6 for Cougar/Cheetah/LionMini.
>  
> Are there other benchmarks driving the changes in rc6 (and rc4)?
>  
> Scott Weitzenkamp
> SQA and Release Manager
> Server Virtualization Business Unit
> Cisco Systems
>  
> 
>      
> 
>     *OSU MPI:*
> 
>     ·        Added mpi_alltoall fine tuning parameters
> 
>     ·        Added default configuration/documentation file
>     $MPIHOME/etc/mvapich.conf
> 
>     ·        Added shell configuration files  $MPIHOME/etc/mvapich.csh ,
>     $MPIHOME/etc/mvapich.csh
> 
>     ·        Default MTU was changed back to 2K for InfiniHost III Ex
>     and InfiniHost III Lx HCAs. For InfiniHost card recommended value is:
>     VIADEV_DEFAULT_MTU=MTU1024
> 
> 
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