Open MPI logo

Open MPI User's Mailing List Archives

  |   Home   |   Support   |   FAQ   |  

This web mail archive is frozen.

This page is part of a frozen web archive of this mailing list.

You can still navigate around this archive, but know that no new mails have been added to it since July of 2016.

Click here to be taken to the new web archives of this list; it includes all the mails that are in this frozen archive plus all new mails that have been sent to the list since it was migrated to the new archives.

Subject: Re: [OMPI users] new map-by-obj has a problem
From: Ralph Castain (rhc_at_[hidden])
Date: 2014-02-27 18:24:33


Hmmm..what does your node look like again (sockets and cores)?

On Feb 27, 2014, at 3:19 PM, tmishima_at_[hidden] wrote:

>
> Hi Ralph, I'm afraid to say your new "map-by obj" causes another problem.
>
> I have overload message with this command line as shown below:
>
> mpirun -np 8 -host node05,node06 -report-bindings -map-by socket:pe=2
> -display-map ~/mis/openmpi/d
> emos/myprog
> --------------------------------------------------------------------------
> A request was made to bind to that would result in binding more
> processes than cpus on a resource:
>
> Bind to: CORE
> Node: node05
> #processes: 2
> #cpus: 1
>
> You can override this protection by adding the "overload-allowed"
> option to your binding directive.
> --------------------------------------------------------------------------
>
> Then, I add "-bind-to core:overload-allowed" to see what happenes.
>
> mpirun -np 8 -host node05,node06 -report-bindings -map-by socket:pe=2
> -display-map -bind-to core:o
> verload-allowed ~/mis/openmpi/demos/myprog
> Data for JOB [14398,1] offset 0
>
> ======================== JOB MAP ========================
>
> Data for node: node05 Num slots: 1 Max slots: 0 Num procs: 4
> Process OMPI jobid: [14398,1] App: 0 Process rank: 0
> Process OMPI jobid: [14398,1] App: 0 Process rank: 1
> Process OMPI jobid: [14398,1] App: 0 Process rank: 2
> Process OMPI jobid: [14398,1] App: 0 Process rank: 3
>
> Data for node: node06 Num slots: 1 Max slots: 0 Num procs: 4
> Process OMPI jobid: [14398,1] App: 0 Process rank: 4
> Process OMPI jobid: [14398,1] App: 0 Process rank: 5
> Process OMPI jobid: [14398,1] App: 0 Process rank: 6
> Process OMPI jobid: [14398,1] App: 0 Process rank: 7
>
> =============================================================
> [node06.cluster:18443] MCW rank 6 bound to socket 0[core 0[hwt 0]], socket
> 0[core 1[hwt 0]]: [B/B/./.][./././.]
> [node05.cluster:20901] MCW rank 2 bound to socket 0[core 0[hwt 0]], socket
> 0[core 1[hwt 0]]: [B/B/./.][./././.]
> [node06.cluster:18443] MCW rank 7 bound to socket 0[core 2[hwt 0]], socket
> 0[core 3[hwt 0]]: [././B/B][./././.]
> [node05.cluster:20901] MCW rank 3 bound to socket 0[core 2[hwt 0]], socket
> 0[core 3[hwt 0]]: [././B/B][./././.]
> [node06.cluster:18443] MCW rank 4 bound to socket 0[core 0[hwt 0]], socket
> 0[core 1[hwt 0]]: [B/B/./.][./././.]
> [node05.cluster:20901] MCW rank 0 bound to socket 0[core 0[hwt 0]], socket
> 0[core 1[hwt 0]]: [B/B/./.][./././.]
> [node06.cluster:18443] MCW rank 5 bound to socket 0[core 2[hwt 0]], socket
> 0[core 3[hwt 0]]: [././B/B][./././.]
> [node05.cluster:20901] MCW rank 1 bound to socket 0[core 2[hwt 0]], socket
> 0[core 3[hwt 0]]: [././B/B][./././.]
> Hello world from process 4 of 8
> Hello world from process 2 of 8
> Hello world from process 6 of 8
> Hello world from process 0 of 8
> Hello world from process 5 of 8
> Hello world from process 1 of 8
> Hello world from process 7 of 8
> Hello world from process 3 of 8
>
> When I add "map-by obj:span", it works fine:
>
> mpirun -np 8 -host node05,node06 -report-bindings -map-by socket:pe=2,span
> -display-map ~/mis/ope
> nmpi/demos/myprog
> Data for JOB [14703,1] offset 0
>
> ======================== JOB MAP ========================
>
> Data for node: node05 Num slots: 1 Max slots: 0 Num procs: 4
> Process OMPI jobid: [14703,1] App: 0 Process rank: 0
> Process OMPI jobid: [14703,1] App: 0 Process rank: 2
> Process OMPI jobid: [14703,1] App: 0 Process rank: 1
> Process OMPI jobid: [14703,1] App: 0 Process rank: 3
>
> Data for node: node06 Num slots: 1 Max slots: 0 Num procs: 4
> Process OMPI jobid: [14703,1] App: 0 Process rank: 4
> Process OMPI jobid: [14703,1] App: 0 Process rank: 6
> Process OMPI jobid: [14703,1] App: 0 Process rank: 5
> Process OMPI jobid: [14703,1] App: 0 Process rank: 7
>
> =============================================================
> [node06.cluster:18491] MCW rank 6 bound to socket 0[core 2[hwt 0]], socket
> 0[core 3[hwt 0]]: [././B/B][./././.]
> [node05.cluster:20949] MCW rank 2 bound to socket 0[core 2[hwt 0]], socket
> 0[core 3[hwt 0]]: [././B/B][./././.]
> [node06.cluster:18491] MCW rank 7 bound to socket 1[core 6[hwt 0]], socket
> 1[core 7[hwt 0]]: [./././.][././B/B]
> [node05.cluster:20949] MCW rank 3 bound to socket 1[core 6[hwt 0]], socket
> 1[core 7[hwt 0]]: [./././.][././B/B]
> [node06.cluster:18491] MCW rank 4 bound to socket 0[core 0[hwt 0]], socket
> 0[core 1[hwt 0]]: [B/B/./.][./././.]
> [node05.cluster:20949] MCW rank 0 bound to socket 0[core 0[hwt 0]], socket
> 0[core 1[hwt 0]]: [B/B/./.][./././.]
> [node06.cluster:18491] MCW rank 5 bound to socket 1[core 4[hwt 0]], socket
> 1[core 5[hwt 0]]: [./././.][B/B/./.]
> [node05.cluster:20949] MCW rank 1 bound to socket 1[core 4[hwt 0]], socket
> 1[core 5[hwt 0]]: [./././.][B/B/./.]
> ....
>
> So, byobj_span would be okay. Of course, bynode and byslot should be okay.
> Could you take a look at orte_rmaps_rr_byobj again?
>
> Regards,
> Tetsuya Mishima
>
> _______________________________________________
> users mailing list
> users_at_[hidden]
> http://www.open-mpi.org/mailman/listinfo.cgi/users