SPEC® MPIM2007 Result

IBM Corporation

IBM Power 575

SPECmpiM_peak2007 = 6.57

SPECmpiM_base2007 = 6.57

MPI2007 license:	0005	Test date:	Jun-2008
Test sponsor:	IBM Corporation	Hardware Availability:	May-2008
Tested by:	IBM Corporation	Software Availability:	May-2008

Results Table

Benchmark	Base							Peak
Benchmark	Ranks	Seconds	Ratio	Seconds	Ratio	Seconds	Ratio	Ranks	Seconds	Ratio	Seconds	Ratio	Seconds	Ratio
Results appear in the order in which they were run. Bold underlined text indicates a median measurement.
104.milc	64	371	4.22	376	4.17	372	4.21	64	371	4.22	376	4.17	372	4.21
107.leslie3d	64	652	8.00	659	7.92	656	7.96	64	652	8.00	659	7.92	656	7.96
113.GemsFDTD	64	610	10.3	611	10.3	612	10.3	64	610	10.3	611	10.3	612	10.3
115.fds4	64	297	6.56	302	6.47	299	6.52	64	297	6.56	302	6.47	299	6.52
121.pop2	64	711	5.81	709	5.82	712	5.80	64	711	5.81	709	5.82	712	5.80
122.tachyon	64	899	3.11	897	3.12	897	3.12	64	899	3.11	897	3.12	897	3.12
126.lammps	64	448	6.50	452	6.46	453	6.43	64	448	6.50	452	6.46	453	6.43
127.wrf2	64	878	8.88	876	8.90	878	8.88	64	878	8.88	876	8.90	878	8.88
128.GAPgeofem	64	229	9.03	228	9.06	229	9.00	64	229	9.03	228	9.06	229	9.00
129.tera_tf	64	763	3.63	762	3.63	762	3.63	64	763	3.63	762	3.63	762	3.63
130.socorro	64	296	12.9	296	12.9	296	12.9	64	296	12.9	296	12.9	296	12.9
132.zeusmp2	64	603	5.14	604	5.13	606	5.12	64	603	5.14	604	5.13	606	5.12
137.lu	64	443	8.30	441	8.33	447	8.23	64	443	8.30	441	8.33	447	8.23

Hardware Summary
Type of System:	SMP
Compute Node:	IBM Power 575
File Server Node:	IBM Power 575
Head Node:	IBM Power 575
Total Compute Nodes:	1
Total Chips:	16
Total Cores:	32
Total Threads:	64
Total Memory:	128 GB
Base Ranks Run:	64
Minimum Peak Ranks:	64
Maximum Peak Ranks:	64

Software Summary
C Compiler:	IBM XL C/C++ Enterprise Edition V9.0 Updated with the Oct2007 PTF
C++ Compiler:	IBM XL C/C++ Enterprise Edition V9.0 Updated with the Oct2007 PTF
Fortran Compiler:	IBM XL Fortran Enterprise Edition V11.1 Updated with the Oct2007 PTF
Base Pointers:	64-bit
Peak Pointers:	64-bit
MPI Library:	IBM Parallel Environment for AIX V4.3.2.2
Other MPI Info:	--
Pre-processors:	--
Other Software:	None

Node Description: IBM Power 575

Hardware
Number of nodes:	1
Uses of the node:	compute, head, fileserver
Vendor:	IBM Corporation
Model:	IBM Power 575
CPU Name:	POWER6
CPU(s) orderable:	32 cores
Chips enabled:	16
Cores enabled:	32
Cores per chip:	2
Threads per core:	2
CPU Characteristics:
CPU MHz:	4700
Primary Cache:	64 KB I + 64 KB D on chip per core
Secondary Cache:	4 MB I+D on chip per core
L3 Cache:	32 MB I+D off chip per chip
Other Cache:	None
Memory:	128 GB (64x2 GB) DDR2 533 MHz
Disk Subsystem:	1x146 GB SFF SAS, 10K RPM
Other Hardware:	None
Adapter:	0
Number of Adapters:	0
Slot Type:	0
Data Rate:	0
Ports Used:	0
Interconnect Type:	0

Software
Adapter:	0
Adapter Driver:	0
Adapter Firmware:	--
Operating System:	IBM AIX V5.3 with the 5300-08-02 Technology Level
Local File System:	AIX/JFS2
Shared File System:	NFS over ethernet
System State:	Multi-user
Other Software:	APAR IZ26983 software update for InfiniBand adapter drivers IBM LoadLeveler for AIX V3.4.3.2

General Notes

113.GemsFDTD (base): Applied maxprocandstop src.alt
129.tera_tf (base): Applied fixbuffer src.alt
127.wrf2 (base): Applied fixcalling src.alt
all ulimits set to unlimited
"petaskbind.sh" script used to bind each task to a unique processor
POE Environment variables set before executing benchmarks:
 CWD		     =/specmpi/mpi2007-1.0
 MP_ADAPTER_USE      =shared
 MP_EUILIB           =us
 MP_EUIDEVICE        =sn_all
 MP_SHARED_MEMORY	 =yes
 MP_SINGLE_THREAD	 =yes
 MP_WAIT_MODE        =poll
 MP_EAGER_LIMIT      =65536
 MP_BUFFER_MEM       =67108864
 MP_POLLING_INTERVAL =80000000
 MP_USE_BULK_XFER    =yes
 MP_BULK_MIN_MSG_SIZE=65536
 MP_STDINMODE        =none
 MP_LABELIO          =no
 MP_HOSTFILE         =$CWD/r35.32-1node
Other Environment variables
 MEMORY_AFFINITY     =MCM
 LDR_CNTRL 	     =DATAPSIZE=64K@TEXTPSIZE=64K@STACKPSIZE=64K
 XLFRTEOTPS          =intrinthds=1
submit command uses petaskbind.sh script to bind logical processors to ranks
 poe $CWD/petaskbind.sh $command -procs $ranks
The Gigabit ethernet switch is shared among many nodes, not just the cluster used in this benchmark.

Base Compiler Invocation

C benchmarks:

/usr/bin/mpcc_r

C++ benchmarks:

126.lammps:

/usr/bin/mpCC_r

Fortran benchmarks:

/usr/bin/mpxlf95_r

Benchmarks using both Fortran and C:

/usr/bin/mpcc_r /usr/bin/mpxlf95_r

Base Portability Flags

107.leslie3d:	-qfixed
115.fds4:	-DSPEC_MPI_LC_NO_TRAILING_UNDERSCORE -qfixed
121.pop2:	-DSPEC_MPI_AIX
127.wrf2:	-DNOUNDERSCORE -DSPEC_MPI_AIX
130.socorro:	-DSPEC_NO_UNDERSCORE -qcpluscmt
132.zeusmp2:	-qfixed -DSPEC_SINGLE_UNDERSCORE
137.lu:	-qfixed