Tested by IBM
  Portability Flags:
    176.gcc:          EXTRA_CFLAGS=-ma -DHOST_WORDS_BIG_ENDIAN
    186.crafty:       EXTRA_CFLAGS=-DAIX
    252.eon:          EXTRA_LDFLAGS=-I. -DNDEBUG
    253.perlbmk:      EXTRA_CFLAGS=-DSPEC_CPU2000_AIX
    254.gap:          EXTRA_CFLAGS=-DSYS_IS_BSD -DSYS_STRING_H -DSYS_HAS_TIME_PROTO -DSYS_HAS_MALLOC_PROTO
                                   -DSYS_HAS_CALLOC_PROTO
    300.twolf:        EXTRA_CFLAGS=-DHAVE_SIGNED_CHAR
 
  Base Optimization Flags:
    C:     -qpdf1/pdf2
           -O5 -blpdata -D_ILS_MACROS
    C++:   -qpdf1/pdf2
           -O5 -lhmu -qalign=natural

  Alternate Sources for Base & Peak:
    Approved alternate-source file 252.eon.fmax_errno.src.alt.tar.gz
    was used with 252.eon for POSIX-compatibility.
 
  Peak Optimization Flags:
     164.gzip:       -qpdf1/pdf2
                     -O5 -blpdata -D_ILS_MACROS -qfdpr
                     fdpr -R3
     175.vpr:        -qpdf1/pdf2
                     -O5 -blpdata -qalign=natural -qhot=arraypad -Q
     176.gcc:        -qpdf1/pdf2
                     -O5
     181.mcf:        -O5 -blpdata -qfdpr -D_ILS_MACROS
                     fdpr -R3
     186.crafty:     -qpdf1/pdf2
                     -O4 -q64 -qfdpr -qarch=pwr3 -qtune=pwr3 -D_ILS_MACROS
                     fdpr -R3
     197.parser:     -qpdf1/pdf2
                     -O5 -blpdata -D_ILS_MACROS -qfdpr
                     fdpr -R3
     252.eon:        -qpdf1/pdf2
                     -O4 -qarch=pwr4 -qtune=pwr4 -qalign=natural -D_ILS_MACROS
     253.perlbmk:    -qpdf1/pdf2
                     -O5 -lhmu -qalign=natural
     254.gap:        -qpdf1/pdf2
                     -O5 -lhmu -qalign=natural -D_ILS_MACROS -blpdata  
     255.vortex:     -qpdf1/pdf2
                     -O5 -lhmu -qalign=natural -D_ILS_MACROS -blpdata
     256.bzip2:      -qpdf1/pdf2
                     -O5 -blpdata -D_ILS_MACROS -qfdpr
                     fdpr -R3
     300.twolf:      -qpdf1/pdf2
                     -O5 -blpdata -D_ILS_MACROS


  SMT: Acronym for "Simultaneous Multi-Threading". A processor technology that allows
       the simultaneous execution of multiple thread contexts within a single processor
       core. (Enabled by default)
  MCM: Acronym for "Multi-Chip Module" (four dual-core processor chips + four L3-cache chips)
       This system contains 8 MCMs.
  SUT: Acronym for "System Under Test"

  C:       IBM XL C for AIX invoked as xlc
  C++:     IBM XL C++ for AIX invoked as xlC

  APAR IY60349 was applied to AIX to enable new hardware support.
  ulimits set to unlimited.
  Large page mode and memory affinity were set as follows:
     vmo -r -o lgpg_regions=7000 -o lgpg_size=16777216 -o memory_affinity=1
     chuser capabilities=CAP_BYPASS_RAC_VMM,CAP_PROPAGATE $USER
     shutdown -r
     export MEMORY_AFFINITY=MCM

  The following config-file entry was used to assign each benchmark process to a core:
     submit = schedule.128 \$SPECUSERNUM $command
  with the "schedule.128" function defined as follows:
     #!/bin/ksh
     index=$1
     shift 1                         # Strip off the residual arguments; the rest is the command.
     if [[ $index -ge 64 ]]
     then
         target=$((1+2*(index-64)))
     else
         target=$((2*index))
     fi
     bindprocessor $$ $target        # Schedule this job to the corresponding core.
     $*                              # Now run the command.

  The "bindprocessor" AIX command binds a process to a CPU core.