[ewg] RE: OFED libraries - on the web at last

[Jonathan Perkins]

On Wed, Jun 17, 2009 at 06:32:08PM +0300, Sasha Khapyorsky wrote:
> On 08:14 Wed 17 Jun     , Todd Rimmer wrote:
> > 
> > The issue isn't with the management tree.  It's with the mvapich included in OFED 1.4.1 and previous versions.
> 
> Then it should be fixed.
> 
> > It links with libibcommon and as a result,
> 
> Do you know why exactly was it linked (and how)? I searched over mvapich
> source and didn't find any references in sources and makefiles. It is
> only mentioned in spec files. So is there any issue really?

When we link against ibumad this dependency is brought in.  Once ibumad
stops referencing ibcommon then we will no longer have this dependency.
You can see that ibcommon isn't even mentioned in the mvapich2 spec
file.

> 
> > ALL end user and ISV apps linked with mvapich also link with libibcommon.
> > 
> > This means that in moving to OFED 1.5 end users and ISVs would have to recompile all their apps.  Such a change should not be taken lightly.  Instead we should provide what is needed in OFED 1.5 such that existing app binaries will continue to work (might be as simple as stubbed library).  Then we can issue notice to end users and ISVs that their apps will need to be rebuilt and allow them at least 1 release to accomplish that.
> > 
> 
> AFAIR libibcommon removal was discussed on the list couple of times
> before, during and after OFED-1.4.
> 
> Sasha
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-- 
Jonathan Perkins
http://www.cse.ohio-state.edu/~perkinjo
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