[Debichem-devel] Bug#725013: [Support] Bug#725013: gromacs-openmpi: grompp crashes with invalid opcode

[Nicholas Breen]

Thank you, I think that information will lead to a solution.  One last
question:

On Tue, Oct 01, 2013 at 11:00:26AM +0300, Vassilis Virvilis wrote:
> 7) Now I am installing in i5
>   It works in my i5. Looks like the problem is only in i7. I have
> tested in the two machines of the cluster. These are xeons that they
> have the problem. Here is an excerpt from /proc/cpuinfo

Could you please check if the i5 machines where it works include "avx" in the
flags line of /proc/cpuinfo?

I built 4.6.3-4 on a different machine than usual, and I think it accidentally
picked up a CPU optimization it should not have had.  AVX extensions were only
added on the Sandy Bridge and newer model Intel CPUs, and the Xeon you provided
the information for doesn't have it.  If that's the case, I will ask for the
package to be rebuilt on a different machine where that problem won't occur.


-- 
Nicholas Breen
nbreen at debian.org