Hello,

I'm new to the list and new to the mpi-business, too.

Our 4*12 Opteron 6238 system is very similar to the one from the original poster and I get the same error message.
Any use in posting my logs?

I compiled the latest hwloc, no change. our System is Ubunut 14.4 LTS with kernel 3.13. and our bios is not updated.

The system scales very fine with OpenMP but fails to give any realistic scaling using PETSc (both for the standard
streaming benchmark and quick tests with a given application).

As far as I understand the system is fine, just the information gathering fails, right?!

Do you know if the hwloc issue relates with our poor PETSc scaling? Is there a way to configure the topology
manually?

To me it appears that an bios update wouldn't help, right?! I wouldn't try it if it is not nesessary. I'm a user with sudo accesss,
not an administrator but we have no admin for the system.

Thanks,

Fabian

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