[lsb-discuss] New package for future LSB version

[Robert Schweikert]

ABI issues only come into play when one considers C++ due to the symbol
mangling stuff. However, LSB prescribes a version of gcc, thus the ABI
is set. I did suggest originally not to include the C++ interfaces thus
this would eliminate some issues. 

I would think if we concentrate on the C interface only, including
OpenMP should not be too difficult. The biggest issue may be to gather
support from the distribution vendors.

Robert

On Mon, 2007-01-08 at 20:13 +0100, Tobias Burnus wrote:
> Hi,
> 
> Wichmann, Mats D wrote:
> >> Since Linux is a major force in clustered environments would it make
> >> sense to try and include OpenMP in the LSB in the 4.0 time frame? To the
> >> best of my knowledge OpenMP is not shipped with distributions today.
> >> However, the API is stable (since it is base on the MPI standard), and
> >> one could enforce that only the C interface is built to avoid any nasty
> >> C++ issues.
> 
> Well, the API is well defined, but I think in terms of ABI the different
> implementations don't have that much in common.
> 
> But maybe it is really time for an ABI, cf. also
> http://www.nic.uoregon.edu/iwomp2005/Talks/meadows.pdf p. 14 (Report of
> the CEO of OpenMP ARB):
> 
> "There is no ABI for OpenMP"
> "* Even on the same hardware; e.g., PGI, Intel, Microsoft, and Pathscale
> all have x86-64 compilers; can you mix and match OpenMP code compiled
> with different compilers?"
> "* There’s a gcc project to do OpenMP. Do we really want another gcc
> compatibility race?"
> 
> GCC's implementation of OpenMP (GOMP) is part of GCC 4.2 (a small minory
> of the Linux vendors backported it to 4.1). To my knowledge there is no
> "GCC 4.2" distribution yet, which is not suprising since 4.2 has not yet
> been released.
> 
> I asked on the OpenMP mainling list about this topic (my take a while
> until the link appears):
> http://www.openmp.org/pipermail/omp/2007/thread.html
> 
> Tobias
> 
> 
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Robert Schweikert                   MAY THE SOURCE BE WITH YOU
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