In the case of MPI application (not gromacs), How do I relocate MPI application from one node to another node while it is running ? I'm sorry, as far as I know the *ompi-restart *command is used to restart application, based on checkpoint file, once the application already terminated (no longer running).
Thanks regards, Husen On Wed, Mar 16, 2016 at 4:29 PM, Jeff Hammond <jeff.scie...@gmail.com> wrote: > Just checkpoint-restart the app to relocate. The overhead will be lower > than trying to do with MPI. > > Jeff > > > On Wednesday, March 16, 2016, Husen R <hus...@gmail.com> wrote: > >> Hi Jeff, >> >> Thanks for the reply. >> >> After consulting the Gromacs docs, as you suggested, Gromacs already >> supports checkpoint/restart. thanks for the suggestion. >> >> Previously, I asked about checkpoint/restart in Open MPI because I want >> to checkpoint MPI Application and restart/migrate it while it is running. >> For the example, I run MPI application in node A,B and C in a cluster and >> I want to migrate process running in node A to other node, let's say to >> node C. >> is there a way to do this with open MPI ? thanks. >> >> Regards, >> >> Husen >> >> >> >> >> On Wed, Mar 16, 2016 at 12:37 PM, Jeff Hammond <jeff.scie...@gmail.com> >> wrote: >> >>> Why do you need OpenMPI to do this? Molecular dynamics trajectories are >>> trivial to checkpoint and restart at the application level. I'm sure >>> Gromacs already supports this. Please consult the Gromacs docs or user >>> support for details. >>> >>> Jeff >>> >>> >>> On Tuesday, March 15, 2016, Husen R <hus...@gmail.com> wrote: >>> >>>> Dear Open MPI Users, >>>> >>>> >>>> Does the current stable release of Open MPI (v1.10 series) support >>>> fault tolerant feature ? >>>> I got the information from Open MPI FAQ that The checkpoint/restart >>>> support was last released as part of the v1.6 series. >>>> I just want to make sure about this. >>>> >>>> and by the way, does Open MPI able to checkpoint or restart mpi >>>> application/GROMACS automatically ? >>>> Please, I really need help. >>>> >>>> Regards, >>>> >>>> >>>> Husen >>>> >>> >>> >>> -- >>> Jeff Hammond >>> jeff.scie...@gmail.com >>> http://jeffhammond.github.io/ >>> >>> _______________________________________________ >>> users mailing list >>> us...@open-mpi.org >>> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users >>> Link to this post: >>> http://www.open-mpi.org/community/lists/users/2016/03/28705.php >>> >> >> > > -- > Jeff Hammond > jeff.scie...@gmail.com > http://jeffhammond.github.io/ > > _______________________________________________ > users mailing list > us...@open-mpi.org > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users > Link to this post: > http://www.open-mpi.org/community/lists/users/2016/03/28709.php >
