| CPU2006 license: | 11 | Test date: | May-2008 |
|---|---|---|---|
| Test sponsor: | IBM Corporation | Hardware Availability: | May-2008 |
| Tested by: | IBM Corporation | Software Availability: | May-2008 |
| Hardware | |
|---|---|
| CPU Name: | POWER6 |
| CPU Characteristics: | |
| CPU MHz: | 4700 |
| FPU: | Integrated |
| CPU(s) enabled: | 32 cores, 16 chips, 2 cores/chip, 2 threads/core |
| CPU(s) orderable: | 32 cores |
| 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: | 2x146 GB SFF SAS 10K RPM |
| Other Hardware: | None |
| Software | |
|---|---|
| Operating System: | Red Hat Enterprise Linux Advanced Platform 5.2 for IBM POWER |
| Compiler: | IBM XL C/C++ Advanced Edition for Linux, V9.0 |
| Auto Parallel: | No |
| File System: | ext3 |
| System State: | Run level 3 (multi-user) |
| Base Pointers: | 32-bit |
| Peak Pointers: | 32/64-bit |
| Other Software: | -IBM Post-Link Optimization for Linux on POWER, Version 5.4.0-17 -MicroQuill SmartHeap 8.1 |
Results Table
| Benchmark | Base | Peak | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Copies | Seconds | Ratio | Seconds | Ratio | Seconds | Ratio | Copies | Seconds | Ratio | Seconds | Ratio | Seconds | Ratio | |
| Results appear in the order in which they were run. Bold underlined text indicates a median measurement. | ||||||||||||||
| 400.perlbench | 64 | 1167 | 536 | 1174 | 532 | 1177 | 531 | 64 | 1196 | 523 | 1153 | 542 | 1102 | 567 |
| 401.bzip2 | 64 | 943 | 655 | 954 | 647 | 949 | 651 | 64 | 858 | 720 | 867 | 712 | 864 | 715 |
| 403.gcc | 64 | 645 | 799 | 644 | 800 | 642 | 803 | 64 | 578 | 892 | 574 | 898 | 576 | 894 |
| 429.mcf | 64 | 433 | 1350 | 431 | 1350 | 432 | 1350 | 64 | 429 | 1360 | 428 | 1360 | 425 | 1370 |
| 445.gobmk | 64 | 836 | 803 | 837 | 802 | 835 | 804 | 64 | 667 | 1010 | 667 | 1010 | 667 | 1010 |
| 456.hmmer | 64 | 844 | 708 | 845 | 706 | 844 | 708 | 64 | 790 | 756 | 786 | 760 | 784 | 762 |
| 458.sjeng | 64 | 1064 | 728 | 1063 | 728 | 1076 | 719 | 64 | 981 | 789 | 985 | 786 | 981 | 789 |
| 462.libquantum | 64 | 826 | 1610 | 825 | 1610 | 824 | 1610 | 32 | 250 | 2650 | 250 | 2650 | 250 | 2650 |
| 464.h264ref | 64 | 1223 | 1160 | 1216 | 1160 | 1216 | 1160 | 64 | 976 | 1450 | 979 | 1450 | 994 | 1430 |
| 471.omnetpp | 64 | 693 | 577 | 693 | 577 | 693 | 577 | 64 | 670 | 597 | 670 | 597 | 670 | 597 |
| 473.astar | 64 | 731 | 615 | 729 | 616 | 728 | 617 | 64 | 611 | 735 | 611 | 736 | 614 | 732 |
| 483.xalancbmk | 64 | 578 | 765 | 582 | 758 | 579 | 763 | 64 | 520 | 850 | 520 | 850 | 520 | 850 |
General Notes
kernel release 2.6.18-91.el5.
See flags file for details on following settings.
ulimit -s (stack) set to 1048576.
System set to Enhanced mode when defining partition on HMC
System set to "Chip affinity" mode using the HMC command
chsyscfg ... -i "addr_broadcast_perf_policy=chip_affinity"
Large pages reserved as follows by root user:
echo 4240 > /proc/sys/vm/nr_hugepages
System configured with libhugetlbfs library for application access to large pages
Environment variables set before executing benchmarks.
export HUGETLB_VERBOSE=0
export HUGETLB_MORECORE=yes
export XLFRTEOPTS=intrinthds=1
IBM Post-Link Optimization tool used for
400.perlbench 401.bzip2 403.gcc 429.mcf 445.gobmk 456.hmmer 458.sjeng
462.libquantum 464.h264ref 473.astar 483.xalancbmk
Benchmarks bound to a processor using numactl on the submit command.
Base Portability Flags
| 400.perlbench: | -DSPEC_CPU_LINUX_PPC |
| 462.libquantum: | -DSPEC_CPU_LINUX |
| 464.h264ref: | -qchars=signed |
| 483.xalancbmk: | -DSPEC_CPU_LINUX |
Base Optimization Flags
C benchmarks:
| -O5 -qalias=noansi -qalloca -lhugetlbfs |
C++ benchmarks:
| -O5 -qrtti -lsmartheap |
Base Other Flags
C benchmarks:
| -qipa=noobject -qipa=threads |
C++ benchmarks:
| -qipa=noobject -qipa=threads |
Peak Portability Flags
| 400.perlbench: | -DSPEC_CPU_LINUX_PPC |
| 403.gcc: | -DSPEC_CPU_LP64 |
| 462.libquantum: | -DSPEC_CPU_LINUX |
| 464.h264ref: | -qchars=signed |
| 483.xalancbmk: | -DSPEC_CPU_LINUX |
Peak Optimization Flags
C benchmarks:
| 400.perlbench: | -Wl,-q -qpdf1(pass 1) -qpdf2(pass 2) -O4 -qalias=noansi -lsmartheap |
| 401.bzip2: | -Wl,-q -qpdf1(pass 1) -qpdf2(pass 2) -O4 -lhugetlbfs |
| 403.gcc: | -Wl,-q -qpdf1(pass 1) -qpdf2(pass 2) -O4 -qalloca -q64 -lhugetlbfs |
| 429.mcf: | -Wl,-q -O5 -qnoenablevmx -lhugetlbfs |
| 445.gobmk: | -Wl,-q -qpdf1(pass 1) -qpdf2(pass 2) -O4 -qnoenablevmx -lhugetlbfs |
| 456.hmmer: | Same as 401.bzip2 |
| 458.sjeng: | Same as 401.bzip2 |
| 462.libquantum: | -Wl,-q -qpdf1(pass 1) -qpdf2(pass 2) -O5 -qnoenablevmx -q64 -lhugetlbfs |
| 464.h264ref: | -Wl,-q -qpdf1(pass 1) -qpdf2(pass 2) -O5 -q64 -lhugetlbfs |
C++ benchmarks:
| 471.omnetpp: | -qpdf1(pass 1) -qpdf2(pass 2) -O5 -qrtti -lsmartheap |
| 473.astar: | -Wl,-q -qpdf1(pass 1) -qpdf2(pass 2) -O5 -qnoenablevmx -lsmartheap |
| 483.xalancbmk: | -Wl,-q -O4 -lsmartheap |