Re: OpenMPI and BLCR 0.8.0b2

From: Josh Hursey (jjhursey_at_open-mpi.org)
Date: Wed Dec 10 2008 - 16:14:50 PST

  • Next message: Alexandre Strube: "undefined symbol: cri_initialize_checkpoint_args_t"
    As a followup I just committed a patch to address the use of this  
    deprecated function to the Open MPI development trunk (r20114). This  
    fix will be moved to the v1.3 branch in the next few days and will be  
    in the eventual v1.3.0 release.
    
    Cheers,
    Josh
    
    On Dec 7, 2008, at 6:31 PM, Paul H. Hargrove wrote:
    
    > It looks as if the current releases of MVAPICH2 and MPICH-V are also  
    > both unprepared for the removal of these older interfaces.  So, they  
    > will be restored in the next beta.
    >
    > -Paul
    >
    > Josh Hursey wrote:
    >> 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
    >
    >
    > -- 
    > 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
    

  • Next message: Alexandre Strube: "undefined symbol: cri_initialize_checkpoint_args_t"