[Users] Meeting minutes for 2015-05-11

[Ian Hinder]

On 12 May 2015, at 18:09, Ian Hinder <ian.hinder at aei.mpg.de> wrote:

> 
> On 12 May 2015, at 17:23, Frank Loeffler <knarf at cct.lsu.edu> wrote:
> 
>> On Tue, May 12, 2015 at 04:53:14PM +0200, Roland Haas wrote:
>>> Frank: best to give it a bit more time before you create the release
>>> branches for simfactory. Ubuntu.cfg as in master currently does not
>>> compile for me on a freshly installed 14.04 virtual machine if I install
>>> only the packages listed at the top (assuming the following packages are
>>> installed) in the cfg file.
>> 
>> I'll wait until Ubuntu compiles. It does not necessarily need to be able
>> to use the system libraries, but it needs to work both when they are
>> installed (but not necessarily configured to be used), and when they
>> are not.
> 
> Mac OS with homebrew also has some problems. OpenMPI 1.8.5 was just released (6th May), and Homebrew is using it, since it is the latest version.  There is a problem with huge memory leaks in the orterun process:  (https://github.com/open-mpi/ompi/issues/579).  For the tests, this means that the memspeed test can take down the machine, and I assume trying to use cactus for anything serious will also not be possible.
> 
> I'm testing now to see if we can compile OpenMPI from the external library, and Barry is seeing if it's possible to ask for the previous version of OpenMPI from Homebrew, which he has verified doesn't have the problem.
> 
> MacPorts doesn't have this issue as it is using 1.7.5, which is well-established.


Barry has updated the homebrew optionlist and runscript to use OpenMPI 1.6, and the problem no longer occurs.  Erik tidied up some settings in both homebrew and macports optionlists, including adding -Ofast for performance, which causes the LocalInterp2 test to fail (see other thread), but this just makes it consistent with other machines, where value-unsafe optimisations are used anyway.  From the point of view of Mac OS, there is nothing more holding up the release.

-- 
Ian Hinder
http://members.aei.mpg.de/ianhin

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