[gmx-developers] release candidate for 5.1 imminent

Mark Abraham mark.j.abraham at gmail.com
Tue Jun 30 20:36:39 CEST 2015


An unexpected issue came up while running my automated tests of the RC
tarball. Some newly-merged fatal errors that try to stop people using mdrun
inefficiently sometimes cause the regressiontests to fail because they are
defaulting to using too many threads. See https://pastee.org/jgyae

We do have machinery in regressiontests to automatically re-try the test
with fewer threads/cores/whatever, but only in response to a set of known
mdrun error outputs, so we could add this particular error to that set.

But in this case, the note on line 43 suggests we should improve the code
leading to the fatal error so that we aren't subsequently double-crossing
ourselves. What do you think, Berk?

(This didn't come up in per-commit testing because we limit those to small
numbers of cores because there's normally multiple testing instances
running simultaneously on the same machine. We can probably do a better job
of this after 5.1, with a bunch of new hardware available.)


On Tue, Jun 30, 2015 at 4:28 PM Mark Abraham <mark.j.abraham at gmail.com>

> Hi,
> I'll ship release candidate for 5.1 today, once I've sorted out release
> notes and put stuff on servers, etc.
> The last possible behaviour changing patch for 5.1 is
> https://gerrit.gromacs.org/4753, if someone's inspired to make it work
> well. https://gerrit.gromacs.org/4272 is too late, even if someone's
> inspired to split off part of it.
> release-5-1 branch is active on git, gerrit and jenkins. Any remaining
> bug-fix patches on master branch in gerrit may be cherry-picked to
> release-5-1 branch (on gerrit or locally, as needed).
> Business will proceed as usual in release-5-1 - such branches are open
> only for all kinds of bug fixes, addition of docs, addition of tests, and
> in all cases aimed at stability and correctness.
> master branch is open for normal business, but people will probably be a
> bit quiet there for a while ;-)
> We are likely to issue a new 4.6.x some time soon, as we've had a number
> of mdrun issues fixed. (There's one known bug outstanding to fix, hopefully
> Michael has time real soon now.) Then release-4-6 branch will be
> permanently closed. We cannot maintain three active release branches and a
> development branch.
> We'll do a 5.0.x soon also, then change the policy for release-5-0 to
> "mdrun correctness bug fixes only" mode.
> Thanks to all for the hard work!
> Mark
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