SCI, Myrinet Benchmarks using EFF_BW

Jason Rappleye rappleye at
Thu May 18 08:20:59 PDT 2000

On Thu, 18 May 2000, Anas Nashif wrote:

> On Wed, 17 May 2000, Bob Felderman wrote:
> > For GM/Myrinet, did you compile with the -gm-can-register-memory
> > option?
> > 
> No, I read in the documentation that you dont recommend using it on linux
> boxes (with redhat 6.0 or greater), so assumed this also applies to SuSE.

That's not what I remember. You need to use --gm-can-register-memory in
order to enable zero-copy, which should give a nice performance boost. 
Other platforms (e.g. Solaris) don't support that. Bob, is that going to
change with gm1.2 ?


Jason Rappleye
Research Programmer, UB Center for Computational Research
rappleye at		rappleye at

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