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Subject: Re: [OMPI users] new map-by-obj has a problem
From: tmishima_at_[hidden]
Date: 2014-02-27 21:11:22


Just checking the difference, not so significant meaning...

Anyway, I guess it's due to the behavior when slot counts is missing
(regarded as slots=1) and it's oversubscribed unintentionally.

I'm going out now, so I can't verify it quickly. If I provide the
correct slot counts, it wll work, I guess. How do you think?

Tetsuya

> "restore" in what sense?
>
> On Feb 27, 2014, at 4:10 PM, tmishima_at_[hidden] wrote:
>
> >
> >
> > Hi Ralph, this is just for your information.
> >
> > I tried to restore previous orte_rmaps_rr_byobj. Then I gets the result
> > below with this command line:
> >
> > mpirun -np 8 -host node05,node06 -report-bindings -map-by socket:pe=2
> > -display-map -bind-to core:overload-allowed ~/mis/openmpi/demos/myprog
> > Data for JOB [31184,1] offset 0
> >
> > ======================== JOB MAP ========================
> >
> > Data for node: node05 Num slots: 1 Max slots: 0 Num procs: 7
> > Process OMPI jobid: [31184,1] App: 0 Process rank: 0
> > Process OMPI jobid: [31184,1] App: 0 Process rank: 2
> > Process OMPI jobid: [31184,1] App: 0 Process rank: 4
> > Process OMPI jobid: [31184,1] App: 0 Process rank: 6
> > Process OMPI jobid: [31184,1] App: 0 Process rank: 1
> > Process OMPI jobid: [31184,1] App: 0 Process rank: 3
> > Process OMPI jobid: [31184,1] App: 0 Process rank: 5
> >
> > Data for node: node06 Num slots: 1 Max slots: 0 Num procs: 1
> > Process OMPI jobid: [31184,1] App: 0 Process rank: 7
> >
> > =============================================================
> > [node06.cluster:18857] MCW rank 7 bound to socket 0[core 0[hwt 0]],
socket
> > 0[core 1[hwt 0]]: [B/B/./.][./././.]
> > [node05.cluster:21399] MCW rank 3 bound to socket 1[core 6[hwt 0]],
socket
> > 1[core 7[hwt 0]]: [./././.][././B/B]
> > [node05.cluster:21399] MCW rank 4 bound to socket 0[core 0[hwt 0]],
socket
> > 0[core 1[hwt 0]]: [B/B/./.][./././.]
> > [node05.cluster:21399] MCW rank 5 bound to socket 1[core 4[hwt 0]],
socket
> > 1[core 5[hwt 0]]: [./././.][B/B/./.]
> > [node05.cluster:21399] MCW rank 6 bound to socket 0[core 2[hwt 0]],
socket
> > 0[core 3[hwt 0]]: [././B/B][./././.]
> > [node05.cluster:21399] MCW rank 0 bound to socket 0[core 0[hwt 0]],
socket
> > 0[core 1[hwt 0]]: [B/B/./.][./././.]
> > [node05.cluster:21399] MCW rank 1 bound to socket 1[core 4[hwt 0]],
socket
> > 1[core 5[hwt 0]]: [./././.][B/B/./.]
> > [node05.cluster:21399] MCW rank 2 bound to socket 0[core 2[hwt 0]],
socket
> > 0[core 3[hwt 0]]: [././B/B][./././.]
> > ....
> >
> >
> > Then I add "-hostfile pbs_hosts" and the result is:
> >
> > [mishima_at_manage work]$cat pbs_hosts
> > node05 slots=8
> > node06 slots=8
> > [mishima_at_manage work]$ mpirun -np 8 -hostfile ~/work/pbs_hosts
> > -report-bindings -map-by socket:pe=2 -display-map
> > ~/mis/openmpi/demos/myprog
> > Data for JOB [30254,1] offset 0
> >
> > ======================== JOB MAP ========================
> >
> > Data for node: node05 Num slots: 8 Max slots: 0 Num procs: 4
> > Process OMPI jobid: [30254,1] App: 0 Process rank: 0
> > Process OMPI jobid: [30254,1] App: 0 Process rank: 2
> > Process OMPI jobid: [30254,1] App: 0 Process rank: 1
> > Process OMPI jobid: [30254,1] App: 0 Process rank: 3
> >
> > Data for node: node06 Num slots: 8 Max slots: 0 Num procs: 4
> > Process OMPI jobid: [30254,1] App: 0 Process rank: 4
> > Process OMPI jobid: [30254,1] App: 0 Process rank: 6
> > Process OMPI jobid: [30254,1] App: 0 Process rank: 5
> > Process OMPI jobid: [30254,1] App: 0 Process rank: 7
> >
> > =============================================================
> > [node05.cluster:21501] MCW rank 2 bound to socket 0[core 2[hwt 0]],
socket
> > 0[core 3[hwt 0]]: [././B/B][./././.]
> > [node05.cluster:21501] MCW rank 3 bound to socket 1[core 6[hwt 0]],
socket
> > 1[core 7[hwt 0]]: [./././.][././B/B]
> > [node05.cluster:21501] MCW rank 0 bound to socket 0[core 0[hwt 0]],
socket
> > 0[core 1[hwt 0]]: [B/B/./.][./././.]
> > [node05.cluster:21501] MCW rank 1 bound to socket 1[core 4[hwt 0]],
socket
> > 1[core 5[hwt 0]]: [./././.][B/B/./.]
> > [node06.cluster:18935] MCW rank 6 bound to socket 0[core 2[hwt 0]],
socket
> > 0[core 3[hwt 0]]: [././B/B][./././.]
> > [node06.cluster:18935] MCW rank 7 bound to socket 1[core 6[hwt 0]],
socket
> > 1[core 7[hwt 0]]: [./././.][././B/B]
> > [node06.cluster:18935] MCW rank 4 bound to socket 0[core 0[hwt 0]],
socket
> > 0[core 1[hwt 0]]: [B/B/./.][./././.]
> > [node06.cluster:18935] MCW rank 5 bound to socket 1[core 4[hwt 0]],
socket
> > 1[core 5[hwt 0]]: [./././.][B/B/./.]
> > ....
> >
> >
> > I think previous version's behavior would be close to what I expect.
> >
> > Tetusya
> >
> >> They have 4 cores/socket and 2 sockets, totally 4 X 2 = 8 cores, each.
> >>
> >> Here is the output of lstopo.
> >>
> >> mishima_at_manage round_robin]$ rsh node05
> >> Last login: Tue Feb 18 15:10:15 from manage
> >> [mishima_at_node05 ~]$ lstopo
> >> Machine (32GB)
> >> NUMANode L#0 (P#0 16GB) + Socket L#0 + L3 L#0 (6144KB)
> >> L2 L#0 (512KB) + L1d L#0 (64KB) + L1i L#0 (64KB) + Core L#0 + PU L#0
> >> (P#0)
> >> L2 L#1 (512KB) + L1d L#1 (64KB) + L1i L#1 (64KB) + Core L#1 + PU L#1
> >> (P#1)
> >> L2 L#2 (512KB) + L1d L#2 (64KB) + L1i L#2 (64KB) + Core L#2 + PU L#2
> >> (P#2)
> >> L2 L#3 (512KB) + L1d L#3 (64KB) + L1i L#3 (64KB) + Core L#3 + PU L#3
> >> (P#3)
> >> NUMANode L#1 (P#1 16GB) + Socket L#1 + L3 L#1 (6144KB)
> >> L2 L#4 (512KB) + L1d L#4 (64KB) + L1i L#4 (64KB) + Core L#4 + PU L#4
> >> (P#4)
> >> L2 L#5 (512KB) + L1d L#5 (64KB) + L1i L#5 (64KB) + Core L#5 + PU L#5
> >> (P#5)
> >> L2 L#6 (512KB) + L1d L#6 (64KB) + L1i L#6 (64KB) + Core L#6 + PU L#6
> >> (P#6)
> >> L2 L#7 (512KB) + L1d L#7 (64KB) + L1i L#7 (64KB) + Core L#7 + PU L#7
> >> (P#7)
> >> ....
> >>
> >> I foucused on byobj_span and bynode. I didn't notice byobj was
modified,
> >> sorry.
> >>
> >> Tetsuya
> >>
> >>> 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
> >>>
> >>> _______________________________________________
> >>> users mailing list
> >>> users_at_[hidden]
> >>> http://www.open-mpi.org/mailman/listinfo.cgi/users
> >>
> >> _______________________________________________
> >> users mailing list
> >> users_at_[hidden]
> >> http://www.open-mpi.org/mailman/listinfo.cgi/users
> >
> > _______________________________________________
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