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Subject: Re: [OMPI users] LAMA of openmpi-1.7.3 is unstable
From: Ralph Castain (rhc_at_[hidden])
Date: 2013-11-07 18:57:25


What happens if you drop the LAMA request and instead run

mpirun -report-bindings -bind-to core Myprog

This would do the same thing - does it work? If so, then we know it is a problem in the LAMA mapper. If not, then it is likely a problem in a different section of the code.

On Nov 7, 2013, at 3:43 PM, tmishima_at_[hidden] wrote:

>
>
> Dear openmpi developers,
>
> I tried the new function LAMA of openmpi-1.7.3 and
> unfortunately it is not stable under my environment, which
> is built with torque.
>
> (1) I used 4 scripts as shown below to clarify the problem:
>
> (COMMON PART)
> #!/bin/sh
> #PBS -l nodes=node03:ppn=8 / nodes=node08:ppn=8
> export OMP_NUM_THREADS=1
> cd $PBS_O_WORKDIR
> cp $PBS_NODEFILE pbs_hosts
> NPROCS=`wc -l < pbs_hosts`
>
> (SCRIPT1)
> mpirun -report-bindings -mca rmaps lama -mca rmaps_lama_bind 1c Myprog
> (SCRIPT2)
> mpirun -oversubscribe -report-bindings -mca rmaps lama \
> -mca rmaps_lama_bind 1c Myprog
> (SCRITP3)
> mpirun -machinefile pbs_hosts -np ${NPROCS} -oversubscribe \
> -report-bindings -mca rmaps lama -mca rmaps_lama_bind 1c Myprog
> (SCRIPT4)
> mpirun -machinefile pbs_hosts -np ${NPROCS} -oversubscribe \
> -report-bindings -mca rmaps lama -mca rmaps_lama_bind 1c \
> -mca rmaps_lama_map Nsbnch \
> -mca ess ^tm -mca plm ^tm -mca ras ^tm Myprog
>
> (2) The results are as follows:
>
> NODE03(32cores) NODE08(8cores)
> SCRIPT1 *ERROR1 *ERROR1
> SCRIPT2 OK OK
> SCRIPT3 **ABORT OK
> SCRIPT4 **ABORT **ABORT
>
> (*)ERROR1 means:
> --------------------------------------------------------------------------
> RMaps LAMA detected oversubscription after mapping 1 of 8 processes.
> Since you have asked not to oversubscribe the resources the job will not
> be launched. If you would instead like to oversubscribe the resources
> try using the --oversubscribe option to mpirun.
> --------------------------------------------------------------------------
> [node08.cluster:28849] [[50428,0],0] ORTE_ERROR_LOG: Error in file
> rmaps_lama_module.c at line 310
> [node08.cluster:28849] [[50428,0],0] ORTE_ERROR_LOG: Error in file
> base/rmaps_base_map_job.c at line 166
>
> (**)ABORT means "stuck and no answer" until forced termination.
>
>
> (3) openmpi-1.7.3 configuration (with PGI compiler)
>
> ./configure \
> --with-tm \
> --with-verbs \
> --disable-ipv6 \
> CC=pgcc CFLAGS="-fast -tp k8-64e" \
> CXX=pgCC CXXFLAGS="-fast -tp k8-64e" \
> F77=pgfortran FFLAGS="-fast -tp k8-64e" \
> FC=pgfortran FCFLAGS="-fast -tp k8-64e"
>
>
> (4) Cluster information:
>
> 32 cores AMD based node(node03):
> Machine (126GB)
> Socket L#0 (32GB)
> NUMANode L#0 (P#0 16GB) + L3 L#0 (5118KB)
> 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) + L3 L#1 (5118KB)
> 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)
> Socket L#1 (32GB)
> NUMANode L#2 (P#6 16GB) + L3 L#2 (5118KB)
> L2 L#8 (512KB) + L1d L#8 (64KB) + L1i L#8 (64KB) + Core L#8 + PU L#8
> (P#8)
> L2 L#9 (512KB) + L1d L#9 (64KB) + L1i L#9 (64KB) + Core L#9 + PU L#9
> (P#9)
> L2 L#10 (512KB) + L1d L#10 (64KB) + L1i L#10 (64KB) + Core L#10 + PU
> L#10 (P#10)
> L2 L#11 (512KB) + L1d L#11 (64KB) + L1i L#11 (64KB) + Core L#11 + PU
> L#11 (P#11)
> NUMANode L#3 (P#7 16GB) + L3 L#3 (5118KB)
> L2 L#12 (512KB) + L1d L#12 (64KB) + L1i L#12 (64KB) + Core L#12 + PU
> L#12 (P#12)
> L2 L#13 (512KB) + L1d L#13 (64KB) + L1i L#13 (64KB) + Core L#13 + PU
> L#13 (P#13)
> L2 L#14 (512KB) + L1d L#14 (64KB) + L1i L#14 (64KB) + Core L#14 + PU
> L#14 (P#14)
> L2 L#15 (512KB) + L1d L#15 (64KB) + L1i L#15 (64KB) + Core L#15 + PU
> L#15 (P#15)
> Socket L#2 (32GB)
> NUMANode L#4 (P#4 16GB) + L3 L#4 (5118KB)
> L2 L#16 (512KB) + L1d L#16 (64KB) + L1i L#16 (64KB) + Core L#16 + PU
> L#16 (P#16)
> L2 L#17 (512KB) + L1d L#17 (64KB) + L1i L#17 (64KB) + Core L#17 + PU
> L#17 (P#17)
> L2 L#18 (512KB) + L1d L#18 (64KB) + L1i L#18 (64KB) + Core L#18 + PU
> L#18 (P#18)
> L2 L#19 (512KB) + L1d L#19 (64KB) + L1i L#19 (64KB) + Core L#19 + PU
> L#19 (P#19)
> NUMANode L#5 (P#5 16GB) + L3 L#5 (5118KB)
> L2 L#20 (512KB) + L1d L#20 (64KB) + L1i L#20 (64KB) + Core L#20 + PU
> L#20 (P#20)
> L2 L#21 (512KB) + L1d L#21 (64KB) + L1i L#21 (64KB) + Core L#21 + PU
> L#21 (P#21)
> L2 L#22 (512KB) + L1d L#22 (64KB) + L1i L#22 (64KB) + Core L#22 + PU
> L#22 (P#22)
> L2 L#23 (512KB) + L1d L#23 (64KB) + L1i L#23 (64KB) + Core L#23 + PU
> L#23 (P#23)
> Socket L#3 (32GB)
> NUMANode L#6 (P#2 16GB) + L3 L#6 (5118KB)
> L2 L#24 (512KB) + L1d L#24 (64KB) + L1i L#24 (64KB) + Core L#24 + PU
> L#24 (P#24)
> L2 L#25 (512KB) + L1d L#25 (64KB) + L1i L#25 (64KB) + Core L#25 + PU
> L#25 (P#25)
> L2 L#26 (512KB) + L1d L#26 (64KB) + L1i L#26 (64KB) + Core L#26 + PU
> L#26 (P#26)
> L2 L#27 (512KB) + L1d L#27 (64KB) + L1i L#27 (64KB) + Core L#27 + PU
> L#27 (P#27)
> NUMANode L#7 (P#3 16GB) + L3 L#7 (5118KB)
> L2 L#28 (512KB) + L1d L#28 (64KB) + L1i L#28 (64KB) + Core L#28 + PU
> L#28 (P#28)
> L2 L#29 (512KB) + L1d L#29 (64KB) + L1i L#29 (64KB) + Core L#29 + PU
> L#29 (P#29)
> L2 L#30 (512KB) + L1d L#30 (64KB) + L1i L#30 (64KB) + Core L#30 + PU
> L#30 (P#30)
> L2 L#31 (512KB) + L1d L#31 (64KB) + L1i L#31 (64KB) + Core L#31 + PU
> L#31 (P#31)
> HostBridge L#0
> PCIBridge
> PCI 14e4:1639
> Net L#0 "eth0"
> PCI 14e4:1639
> Net L#1 "eth1"
> PCIBridge
> PCI 14e4:1639
> Net L#2 "eth2"
> PCI 14e4:1639
> Net L#3 "eth3"
> PCIBridge
> PCIBridge
> PCIBridge
> PCI 1000:0072
> Block L#4 "sdb"
> Block L#5 "sda"
> PCI 1002:4390
> Block L#6 "sr0"
> PCIBridge
> PCI 102b:0532
> HostBridge L#7
> PCIBridge
> PCI 15b3:6274
> Net L#7 "ib0"
> OpenFabrics L#8 "mthca0"
>
> 8 cores AMD based node(node08):
> 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)
> HostBridge L#0
> PCI 10de:036e
> PCI 10de:037f
> Block L#0 "sda"
> PCI 10de:037f
> PCI 10de:037f
> PCIBridge
> PCI 18ca:0020
> PCIBridge
> PCI 15b3:6274
> Net L#1 "ib0"
> OpenFabrics L#2 "mthca0"
>
> Regards,
> Tetsuya Mishima
>
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