From: Josh Hursey (jjhursey_at_open-mpi.org)
Date: Sun Dec 07 2008 - 07:02:25 PST
Paul,
This patch will definitely be included in the Open MPI v1.3 series.
Depending on when the group decides to release and when I get a
chance to create the patch it may not make it for v1.3.0. Open MPI
has a configure check for cr_request_file, and it 'should' default to
fork/exec cr_checkpoint if it does not find the interface ('should'
meaning that I haven't tested this in a long time, but the code is
still in place). So I believe that 0.8.0 should work fine with Open
MPI, if not slightly non-optimal.
With that in mind I would continue with removing the cr_request_file
interface in 0.8.0 as you had planned and I'll try to get a patch
into the Open MPI v1.3 series as quickly as I can.
Thanks for the offer.
Josh
On Dec 4, 2008, at 3:13 PM, Paul H. Hargrove wrote:
> Josh,
>
> I see the trac item lists 1.3 as the Milestone for this fix. Is
> it realistic to think that this (hopefully small) change to OMPI
> will make it into 1.3? If not, I can probably resurect the removed
> APIs and delay removal until 0.8.1, though I'd rather not if this
> can be avoided.
>
> -Paul
>
> Josh Hursey wrote:
>> I responded on the Open MPI mailing list regarding this, but
>> wanted to repost here in case anyone is interested in tracking the
>> progress of this Open MPI C/R bug.
>> http://www.open-mpi.org/community/lists/users/2008/12/7391.php
>>
>> Thanks for the bug report,
>> Josh
>>
>> On Dec 4, 2008, at 4:39 AM, Matthias Hovestadt wrote:
>>
>>> Hi!
>>>
>>> Just for your information: the checkpointing support of
>>> OpenMPI makes use of the deprecated function cr_request_file.
>>> Since you removed support for these deprecated functions in
>>> 0.8.0, the usage of older versions like 0.7.3 is mandatory if
>>> if checkpointing OpenMPI jobs.
>>>
>>>
>>> Best,
>>> Matthias
>>>
>>>
>>
>
>
> --
> Paul H. Hargrove PHHargrove_at_lbl_dot_gov
> Future Technologies Group
> HPC Research Department Tel: +1-510-495-2352
> Lawrence Berkeley National Laboratory Fax: +1-510-486-6900