CPU2006 Result Flag Description

Base Optimization Flags

C benchmarks

- +Ofaster
- hp_cc,hp_aCC
- COPTIMIZE
- This option selects +Ofast, but with the optimization level increased to +O4.
- Includes:
  - +Ofast
    - +O2
      
      +O1
    - +Onolimit
    - +Ofltacc=relaxed
    - +DSnative
    - +FPD
    - -Wl,+pi,1M
    - -Wl,+pd,1M
    - +mergeseg
  - +O4
    - +O3
      
      +O2
      
      +O1
    - -ipo
- +Otype_safety=ansi
- hp_cc,hp_aCC
- COPTIMIZE
- Enable [disable] aliasing across types.
  - off - The default. Specifies that aliasing can occur freely across types. This is a synonym to +Onoptrs_ansi and +Onoptrs_strongly_typed options in legacy cc.
  - limited - Code follows ANSI aliasing rules. Unnamed objects should be treated as if they had an unknown type.
  - ansi - Code follows ANSI aliasing rules, and unnamed objects should be treated the same as named objects. This option is synonym to +Optrs_ansi option in legacy cc.
  - strong - Code follows ANSI aliasing rules, except that accesses through lvalues of a character type are not permitted to touch objects of other types. This assumes that field addresses are not taken. This option is synonym to +Optrs_strongly_typed option in legacy cc.
- -Wl,-a,archive_shared
- COPTIMIZE
- Specifies whether shared or archive libraries are searched with the -l option. For archive_shared, the archive form is preferred, but the shared form is allowed.
- -Wl,+pd,64M
- COPTIMIZE
- Request a particular virtual memory page size that should be used for data. Sizes of 4K, 16K, 64K, 256K, 1M, 4M, 16M, 64M, 256M, 1G, 4G, D, and L are supported. A size of D allows the kernel to choose what page size should be used. A size of L results in using the largest page size available. The actual page size may vary if the requested size cannot be fulfilled.
- -Wl,+pi,64M
- COPTIMIZE
- Request a particular virtual memory page size that should be used for instructions. Sizes of 4K, 16K, 64K, 256K, 1M, 4M, 16M, 64M, 256M, 1G, 4G, D, and L are supported. A size of D allows the kernel to choose what page size should be used. A size of L results in using the largest page size available. The actual page size may vary if the requested size cannot be fulfilled.
- -Wl,-N
- EXTRA_LDFLAGS
- In 32-bit mode only, cause the data to be placed immediately following the text, and make the text writable. Files of this type cannot be shared.

C++ benchmarks

- +Ofaster
- hp_cc,hp_aCC
- CXXOPTIMIZE
- This option selects +Ofast, but with the optimization level increased to +O4.
- Includes:
  - +Ofast
    - +O2
      
      +O1
    - +Onolimit
    - +Ofltacc=relaxed
    - +DSnative
    - +FPD
    - -Wl,+pi,1M
    - -Wl,+pd,1M
    - +mergeseg
  - +O4
    - +O3
      
      +O2
      
      +O1
    - -ipo
- +Otype_safety=ansi
- hp_cc,hp_aCC
- CXXOPTIMIZE
- Enable [disable] aliasing across types.
  - off - The default. Specifies that aliasing can occur freely across types. This is a synonym to +Onoptrs_ansi and +Onoptrs_strongly_typed options in legacy cc.
  - limited - Code follows ANSI aliasing rules. Unnamed objects should be treated as if they had an unknown type.
  - ansi - Code follows ANSI aliasing rules, and unnamed objects should be treated the same as named objects. This option is synonym to +Optrs_ansi option in legacy cc.
  - strong - Code follows ANSI aliasing rules, except that accesses through lvalues of a character type are not permitted to touch objects of other types. This assumes that field addresses are not taken. This option is synonym to +Optrs_strongly_typed option in legacy cc.
- -Wl,-a,archive_shared
- CXXOPTIMIZE
- Specifies whether shared or archive libraries are searched with the -l option. For archive_shared, the archive form is preferred, but the shared form is allowed.
- -Wl,+pd,64M
- CXXOPTIMIZE
- Request a particular virtual memory page size that should be used for data. Sizes of 4K, 16K, 64K, 256K, 1M, 4M, 16M, 64M, 256M, 1G, 4G, D, and L are supported. A size of D allows the kernel to choose what page size should be used. A size of L results in using the largest page size available. The actual page size may vary if the requested size cannot be fulfilled.
- -Wl,+pi,64M
- CXXOPTIMIZE
- Request a particular virtual memory page size that should be used for instructions. Sizes of 4K, 16K, 64K, 256K, 1M, 4M, 16M, 64M, 256M, 1G, 4G, D, and L are supported. A size of D allows the kernel to choose what page size should be used. A size of L results in using the largest page size available. The actual page size may vary if the requested size cannot be fulfilled.
- -Wl,-N
- EXTRA_LDFLAGS
- In 32-bit mode only, cause the data to be placed immediately following the text, and make the text writable. Files of this type cannot be shared.

Fortran benchmarks

- +Ofaster
- hp_f90
- FOPTIMIZE
- This option selects +Ofast, but with the optimization level increased to +O4. It also implies -ipo.
- Includes:
  - +Ofast
    - +O2
      
      +O1
    - +Onolimit
    - +Ofltacc=relaxed
    - +DSnative
    - +FPD
    - -Wl,+pi,1M
    - -Wl,+pd,1M
    - +mergeseg
  - +O4
    - +O3
      
      +O2
      
      +O1
    - -ipo
- -Wl,-a,archive_shared
- FOPTIMIZE
- Specifies whether shared or archive libraries are searched with the -l option. For archive_shared, the archive form is preferred, but the shared form is allowed.
- -Wl,+pd,64M
- FOPTIMIZE
- Request a particular virtual memory page size that should be used for data. Sizes of 4K, 16K, 64K, 256K, 1M, 4M, 16M, 64M, 256M, 1G, 4G, D, and L are supported. A size of D allows the kernel to choose what page size should be used. A size of L results in using the largest page size available. The actual page size may vary if the requested size cannot be fulfilled.
- -Wl,+pi,64M
- FOPTIMIZE
- Request a particular virtual memory page size that should be used for instructions. Sizes of 4K, 16K, 64K, 256K, 1M, 4M, 16M, 64M, 256M, 1G, 4G, D, and L are supported. A size of D allows the kernel to choose what page size should be used. A size of L results in using the largest page size available. The actual page size may vary if the requested size cannot be fulfilled.
- -Wl,-N
- EXTRA_LDFLAGS
- In 32-bit mode only, cause the data to be placed immediately following the text, and make the text writable. Files of this type cannot be shared.

Benchmarks using both Fortran and C

- +Ofaster
- hp_cc,hp_aCC
- COPTIMIZE
- This option selects +Ofast, but with the optimization level increased to +O4.
- Includes:
  - +Ofast
    - +O2
      
      +O1
    - +Onolimit
    - +Ofltacc=relaxed
    - +DSnative
    - +FPD
    - -Wl,+pi,1M
    - -Wl,+pd,1M
    - +mergeseg
  - +O4
    - +O3
      
      +O2
      
      +O1
    - -ipo
- +Otype_safety=ansi
- hp_cc,hp_aCC
- COPTIMIZE
- Enable [disable] aliasing across types.
  - off - The default. Specifies that aliasing can occur freely across types. This is a synonym to +Onoptrs_ansi and +Onoptrs_strongly_typed options in legacy cc.
  - limited - Code follows ANSI aliasing rules. Unnamed objects should be treated as if they had an unknown type.
  - ansi - Code follows ANSI aliasing rules, and unnamed objects should be treated the same as named objects. This option is synonym to +Optrs_ansi option in legacy cc.
  - strong - Code follows ANSI aliasing rules, except that accesses through lvalues of a character type are not permitted to touch objects of other types. This assumes that field addresses are not taken. This option is synonym to +Optrs_strongly_typed option in legacy cc.
- -Wl,-a,archive_shared
- COPTIMIZE, FOPTIMIZE
- Specifies whether shared or archive libraries are searched with the -l option. For archive_shared, the archive form is preferred, but the shared form is allowed.
- -Wl,+pd,64M
- COPTIMIZE, FOPTIMIZE
- Request a particular virtual memory page size that should be used for data. Sizes of 4K, 16K, 64K, 256K, 1M, 4M, 16M, 64M, 256M, 1G, 4G, D, and L are supported. A size of D allows the kernel to choose what page size should be used. A size of L results in using the largest page size available. The actual page size may vary if the requested size cannot be fulfilled.
- -Wl,+pi,64M
- COPTIMIZE, FOPTIMIZE
- Request a particular virtual memory page size that should be used for instructions. Sizes of 4K, 16K, 64K, 256K, 1M, 4M, 16M, 64M, 256M, 1G, 4G, D, and L are supported. A size of D allows the kernel to choose what page size should be used. A size of L results in using the largest page size available. The actual page size may vary if the requested size cannot be fulfilled.
- +Ofaster
- hp_f90
- FOPTIMIZE
- This option selects +Ofast, but with the optimization level increased to +O4. It also implies -ipo.
- Includes:
  - +Ofast
    - +O2
      
      +O1
    - +Onolimit
    - +Ofltacc=relaxed
    - +DSnative
    - +FPD
    - -Wl,+pi,1M
    - -Wl,+pd,1M
    - +mergeseg
  - +O4
    - +O3
      
      +O2
      
      +O1
    - -ipo
- -Wl,-N
- EXTRA_LDFLAGS
- In 32-bit mode only, cause the data to be placed immediately following the text, and make the text writable. Files of this type cannot be shared.

Peak Optimization Flags

C benchmarks

433.milc

- +Oprofile=collect:all
- hp_cc,hp_aCC,hp_f90
- PASS1_CFLAGS, PASS1_LDCFLAGS
- Instrument the application to enable collection of profile based optimization data. Qualifiers are a comma-separated list of profile collection qualifiers. The profile collection qualifiers are:
  - arc - Enable collection of arc counts.
  - dcache - Enable collection of data cache misses.
  - stride - Enable collection of stride data.
  - loopiter - Enable collection of loop iteration counts.
  - all - Enable collection of all types of profile data. Equivalent to the command +Oprofile=collect:arc,dcache,stride,loopiter.
- +Oprofile=use
- hp_cc,hp_aCC,hp_f90
- PASS2_CFLAGS, PASS2_LDCFLAGS
- Examine the profile database file produced by an instrumented program to perform profile based optimizations on the code. Some optimizations are only enabled when a feedback data file is available.
- +Ofaster
- hp_cc,hp_aCC
- COPTIMIZE
- This option selects +Ofast, but with the optimization level increased to +O4.
- Includes:
  - +Ofast
    - +O2
      
      +O1
    - +Onolimit
    - +Ofltacc=relaxed
    - +DSnative
    - +FPD
    - -Wl,+pi,1M
    - -Wl,+pd,1M
    - +mergeseg
  - +O4
    - +O3
      
      +O2
      
      +O1
    - -ipo
- +Otype_safety=ansi
- hp_cc,hp_aCC
- COPTIMIZE
- Enable [disable] aliasing across types.
  - off - The default. Specifies that aliasing can occur freely across types. This is a synonym to +Onoptrs_ansi and +Onoptrs_strongly_typed options in legacy cc.
  - limited - Code follows ANSI aliasing rules. Unnamed objects should be treated as if they had an unknown type.
  - ansi - Code follows ANSI aliasing rules, and unnamed objects should be treated the same as named objects. This option is synonym to +Optrs_ansi option in legacy cc.
  - strong - Code follows ANSI aliasing rules, except that accesses through lvalues of a character type are not permitted to touch objects of other types. This assumes that field addresses are not taken. This option is synonym to +Optrs_strongly_typed option in legacy cc.
- -Wl,-a,archive_shared
- COPTIMIZE
- Specifies whether shared or archive libraries are searched with the -l option. For archive_shared, the archive form is preferred, but the shared form is allowed.
- -Wl,+pd,64M
- COPTIMIZE
- Request a particular virtual memory page size that should be used for data. Sizes of 4K, 16K, 64K, 256K, 1M, 4M, 16M, 64M, 256M, 1G, 4G, D, and L are supported. A size of D allows the kernel to choose what page size should be used. A size of L results in using the largest page size available. The actual page size may vary if the requested size cannot be fulfilled.
- -Wl,+pi,64M
- COPTIMIZE
- Request a particular virtual memory page size that should be used for instructions. Sizes of 4K, 16K, 64K, 256K, 1M, 4M, 16M, 64M, 256M, 1G, 4G, D, and L are supported. A size of D allows the kernel to choose what page size should be used. A size of L results in using the largest page size available. The actual page size may vary if the requested size cannot be fulfilled.
- +Onoparmsoverlap
- COPTIMIZE
- Optimize with the assumption that subprogram arguments do [do not] refer to the same memory. This option can be used at optimization levels 2, 3, and 4.
- -Wl,-N
- EXTRA_LDFLAGS
- In 32-bit mode only, cause the data to be placed immediately following the text, and make the text writable. Files of this type cannot be shared.

482.sphinx3

- +Oprofile=collect:all
- hp_cc,hp_aCC,hp_f90
- PASS1_CFLAGS, PASS1_LDCFLAGS
- Instrument the application to enable collection of profile based optimization data. Qualifiers are a comma-separated list of profile collection qualifiers. The profile collection qualifiers are:
  - arc - Enable collection of arc counts.
  - dcache - Enable collection of data cache misses.
  - stride - Enable collection of stride data.
  - loopiter - Enable collection of loop iteration counts.
  - all - Enable collection of all types of profile data. Equivalent to the command +Oprofile=collect:arc,dcache,stride,loopiter.
- +Oprofile=use
- hp_cc,hp_aCC,hp_f90
- PASS2_CFLAGS, PASS2_LDCFLAGS
- Examine the profile database file produced by an instrumented program to perform profile based optimizations on the code. Some optimizations are only enabled when a feedback data file is available.
- +Ofaster
- hp_cc,hp_aCC
- COPTIMIZE
- This option selects +Ofast, but with the optimization level increased to +O4.
- Includes:
  - +Ofast
    - +O2
      
      +O1
    - +Onolimit
    - +Ofltacc=relaxed
    - +DSnative
    - +FPD
    - -Wl,+pi,1M
    - -Wl,+pd,1M
    - +mergeseg
  - +O4
    - +O3
      
      +O2
      
      +O1
    - -ipo
- +Otype_safety=ansi
- hp_cc,hp_aCC
- COPTIMIZE
- Enable [disable] aliasing across types.
  - off - The default. Specifies that aliasing can occur freely across types. This is a synonym to +Onoptrs_ansi and +Onoptrs_strongly_typed options in legacy cc.
  - limited - Code follows ANSI aliasing rules. Unnamed objects should be treated as if they had an unknown type.
  - ansi - Code follows ANSI aliasing rules, and unnamed objects should be treated the same as named objects. This option is synonym to +Optrs_ansi option in legacy cc.
  - strong - Code follows ANSI aliasing rules, except that accesses through lvalues of a character type are not permitted to touch objects of other types. This assumes that field addresses are not taken. This option is synonym to +Optrs_strongly_typed option in legacy cc.
- -Wl,-a,archive_shared
- COPTIMIZE
- Specifies whether shared or archive libraries are searched with the -l option. For archive_shared, the archive form is preferred, but the shared form is allowed.
- -Wl,+pd,64M
- COPTIMIZE
- Request a particular virtual memory page size that should be used for data. Sizes of 4K, 16K, 64K, 256K, 1M, 4M, 16M, 64M, 256M, 1G, 4G, D, and L are supported. A size of D allows the kernel to choose what page size should be used. A size of L results in using the largest page size available. The actual page size may vary if the requested size cannot be fulfilled.
- -Wl,+pi,64M
- COPTIMIZE
- Request a particular virtual memory page size that should be used for instructions. Sizes of 4K, 16K, 64K, 256K, 1M, 4M, 16M, 64M, 256M, 1G, 4G, D, and L are supported. A size of D allows the kernel to choose what page size should be used. A size of L results in using the largest page size available. The actual page size may vary if the requested size cannot be fulfilled.
- +Onoparmsoverlap
- COPTIMIZE
- Optimize with the assumption that subprogram arguments do [do not] refer to the same memory. This option can be used at optimization levels 2, 3, and 4.

C++ benchmarks

450.soplex

- +Oprofile=collect:all
- hp_cc,hp_aCC,hp_f90
- PASS1_CXXFLAGS, PASS1_LDCXXFLAGS
- Instrument the application to enable collection of profile based optimization data. Qualifiers are a comma-separated list of profile collection qualifiers. The profile collection qualifiers are:
  - arc - Enable collection of arc counts.
  - dcache - Enable collection of data cache misses.
  - stride - Enable collection of stride data.
  - loopiter - Enable collection of loop iteration counts.
  - all - Enable collection of all types of profile data. Equivalent to the command +Oprofile=collect:arc,dcache,stride,loopiter.
- +Oprofile=use
- hp_cc,hp_aCC,hp_f90
- PASS2_CXXFLAGS, PASS2_LDCXXFLAGS
- Examine the profile database file produced by an instrumented program to perform profile based optimizations on the code. Some optimizations are only enabled when a feedback data file is available.
- +Ofaster
- hp_cc,hp_aCC
- CXXOPTIMIZE
- This option selects +Ofast, but with the optimization level increased to +O4.
- Includes:
  - +Ofast
    - +O2
      
      +O1
    - +Onolimit
    - +Ofltacc=relaxed
    - +DSnative
    - +FPD
    - -Wl,+pi,1M
    - -Wl,+pd,1M
    - +mergeseg
  - +O4
    - +O3
      
      +O2
      
      +O1
    - -ipo
- +Otype_safety=ansi
- hp_cc,hp_aCC
- CXXOPTIMIZE
- Enable [disable] aliasing across types.
  - off - The default. Specifies that aliasing can occur freely across types. This is a synonym to +Onoptrs_ansi and +Onoptrs_strongly_typed options in legacy cc.
  - limited - Code follows ANSI aliasing rules. Unnamed objects should be treated as if they had an unknown type.
  - ansi - Code follows ANSI aliasing rules, and unnamed objects should be treated the same as named objects. This option is synonym to +Optrs_ansi option in legacy cc.
  - strong - Code follows ANSI aliasing rules, except that accesses through lvalues of a character type are not permitted to touch objects of other types. This assumes that field addresses are not taken. This option is synonym to +Optrs_strongly_typed option in legacy cc.
- -Wl,-a,archive_shared
- CXXOPTIMIZE
- Specifies whether shared or archive libraries are searched with the -l option. For archive_shared, the archive form is preferred, but the shared form is allowed.
- -Wl,+pd,64M
- CXXOPTIMIZE
- Request a particular virtual memory page size that should be used for data. Sizes of 4K, 16K, 64K, 256K, 1M, 4M, 16M, 64M, 256M, 1G, 4G, D, and L are supported. A size of D allows the kernel to choose what page size should be used. A size of L results in using the largest page size available. The actual page size may vary if the requested size cannot be fulfilled.
- -Wl,+pi,64M
- CXXOPTIMIZE
- Request a particular virtual memory page size that should be used for instructions. Sizes of 4K, 16K, 64K, 256K, 1M, 4M, 16M, 64M, 256M, 1G, 4G, D, and L are supported. A size of D allows the kernel to choose what page size should be used. A size of L results in using the largest page size available. The actual page size may vary if the requested size cannot be fulfilled.
- +Onoparmsoverlap
- CXXOPTIMIZE
- Optimize with the assumption that subprogram arguments do [do not] refer to the same memory. This option can be used at optimization levels 2, 3, and 4.
- -Wl,-N
- EXTRA_LDFLAGS
- In 32-bit mode only, cause the data to be placed immediately following the text, and make the text writable. Files of this type cannot be shared.

453.povray

- +Oprofile=collect:all
- hp_cc,hp_aCC,hp_f90
- PASS1_CXXFLAGS, PASS1_LDCXXFLAGS
- Instrument the application to enable collection of profile based optimization data. Qualifiers are a comma-separated list of profile collection qualifiers. The profile collection qualifiers are:
  - arc - Enable collection of arc counts.
  - dcache - Enable collection of data cache misses.
  - stride - Enable collection of stride data.
  - loopiter - Enable collection of loop iteration counts.
  - all - Enable collection of all types of profile data. Equivalent to the command +Oprofile=collect:arc,dcache,stride,loopiter.
- +Oprofile=use
- hp_cc,hp_aCC,hp_f90
- PASS2_CXXFLAGS, PASS2_LDCXXFLAGS
- Examine the profile database file produced by an instrumented program to perform profile based optimizations on the code. Some optimizations are only enabled when a feedback data file is available.
- +Ofaster
- hp_cc,hp_aCC
- CXXOPTIMIZE
- This option selects +Ofast, but with the optimization level increased to +O4.
- Includes:
  - +Ofast
    - +O2
      
      +O1
    - +Onolimit
    - +Ofltacc=relaxed
    - +DSnative
    - +FPD
    - -Wl,+pi,1M
    - -Wl,+pd,1M
    - +mergeseg
  - +O4
    - +O3
      
      +O2
      
      +O1
    - -ipo
- +Otype_safety=ansi
- hp_cc,hp_aCC
- CXXOPTIMIZE
- Enable [disable] aliasing across types.
  - off - The default. Specifies that aliasing can occur freely across types. This is a synonym to +Onoptrs_ansi and +Onoptrs_strongly_typed options in legacy cc.
  - limited - Code follows ANSI aliasing rules. Unnamed objects should be treated as if they had an unknown type.
  - ansi - Code follows ANSI aliasing rules, and unnamed objects should be treated the same as named objects. This option is synonym to +Optrs_ansi option in legacy cc.
  - strong - Code follows ANSI aliasing rules, except that accesses through lvalues of a character type are not permitted to touch objects of other types. This assumes that field addresses are not taken. This option is synonym to +Optrs_strongly_typed option in legacy cc.
- -Wl,-a,archive_shared
- CXXOPTIMIZE
- Specifies whether shared or archive libraries are searched with the -l option. For archive_shared, the archive form is preferred, but the shared form is allowed.
- -Wl,+pd,64M
- CXXOPTIMIZE
- Request a particular virtual memory page size that should be used for data. Sizes of 4K, 16K, 64K, 256K, 1M, 4M, 16M, 64M, 256M, 1G, 4G, D, and L are supported. A size of D allows the kernel to choose what page size should be used. A size of L results in using the largest page size available. The actual page size may vary if the requested size cannot be fulfilled.
- -Wl,+pi,64M
- CXXOPTIMIZE
- Request a particular virtual memory page size that should be used for instructions. Sizes of 4K, 16K, 64K, 256K, 1M, 4M, 16M, 64M, 256M, 1G, 4G, D, and L are supported. A size of D allows the kernel to choose what page size should be used. A size of L results in using the largest page size available. The actual page size may vary if the requested size cannot be fulfilled.

Fortran benchmarks

416.gamess

- +Ofaster
- hp_f90
- FOPTIMIZE
- This option selects +Ofast, but with the optimization level increased to +O4. It also implies -ipo.
- Includes:
  - +Ofast
    - +O2
      
      +O1
    - +Onolimit
    - +Ofltacc=relaxed
    - +DSnative
    - +FPD
    - -Wl,+pi,1M
    - -Wl,+pd,1M
    - +mergeseg
  - +O4
    - +O3
      
      +O2
      
      +O1
    - -ipo
- -Wl,-a,archive_shared
- FOPTIMIZE
- Specifies whether shared or archive libraries are searched with the -l option. For archive_shared, the archive form is preferred, but the shared form is allowed.
- -Wl,+pd,64M
- FOPTIMIZE
- Request a particular virtual memory page size that should be used for data. Sizes of 4K, 16K, 64K, 256K, 1M, 4M, 16M, 64M, 256M, 1G, 4G, D, and L are supported. A size of D allows the kernel to choose what page size should be used. A size of L results in using the largest page size available. The actual page size may vary if the requested size cannot be fulfilled.
- -Wl,+pi,64M
- FOPTIMIZE
- Request a particular virtual memory page size that should be used for instructions. Sizes of 4K, 16K, 64K, 256K, 1M, 4M, 16M, 64M, 256M, 1G, 4G, D, and L are supported. A size of D allows the kernel to choose what page size should be used. A size of L results in using the largest page size available. The actual page size may vary if the requested size cannot be fulfilled.
- +Odataprefetch=direct
- FOPTIMIZE
- +Odataprefetch=kind
  
  Control generation of data prefetch instructions for data structures referenced within innermost loops. The defined values for kind are:
  - direct - Enable generation of data prefetch instructions for the benefit of direct memory accesses, but not indirect memory accesses.
  - indirect - Enable generation of data prefetch instructions for the benefit of both direct and indirect memory accesses. This is the default at optimization levels +O2 and above.
  - none - Disable generation of data prefetch instructions. This is the default at optimization levels +O1 and below.
- -Wl,-N
- EXTRA_LDFLAGS
- In 32-bit mode only, cause the data to be placed immediately following the text, and make the text writable. Files of this type cannot be shared.

459.GemsFDTD

- +Oprofile=collect:all
- hp_cc,hp_aCC,hp_f90
- PASS1_FFLAGS, PASS1_LDFFLAGS
- Instrument the application to enable collection of profile based optimization data. Qualifiers are a comma-separated list of profile collection qualifiers. The profile collection qualifiers are:
  - arc - Enable collection of arc counts.
  - dcache - Enable collection of data cache misses.
  - stride - Enable collection of stride data.
  - loopiter - Enable collection of loop iteration counts.
  - all - Enable collection of all types of profile data. Equivalent to the command +Oprofile=collect:arc,dcache,stride,loopiter.
- +Oprofile=use
- hp_cc,hp_aCC,hp_f90
- PASS2_FFLAGS, PASS2_LDFFLAGS
- Examine the profile database file produced by an instrumented program to perform profile based optimizations on the code. Some optimizations are only enabled when a feedback data file is available.
- +Ofaster
- hp_f90
- FOPTIMIZE
- This option selects +Ofast, but with the optimization level increased to +O4. It also implies -ipo.
- Includes:
  - +Ofast
    - +O2
      
      +O1
    - +Onolimit
    - +Ofltacc=relaxed
    - +DSnative
    - +FPD
    - -Wl,+pi,1M
    - -Wl,+pd,1M
    - +mergeseg
  - +O4
    - +O3
      
      +O2
      
      +O1
    - -ipo
- -Wl,-a,archive_shared
- FOPTIMIZE
- Specifies whether shared or archive libraries are searched with the -l option. For archive_shared, the archive form is preferred, but the shared form is allowed.
- -Wl,+pd,64M
- FOPTIMIZE
- Request a particular virtual memory page size that should be used for data. Sizes of 4K, 16K, 64K, 256K, 1M, 4M, 16M, 64M, 256M, 1G, 4G, D, and L are supported. A size of D allows the kernel to choose what page size should be used. A size of L results in using the largest page size available. The actual page size may vary if the requested size cannot be fulfilled.
- -Wl,+pi,64M
- FOPTIMIZE
- Request a particular virtual memory page size that should be used for instructions. Sizes of 4K, 16K, 64K, 256K, 1M, 4M, 16M, 64M, 256M, 1G, 4G, D, and L are supported. A size of D allows the kernel to choose what page size should be used. A size of L results in using the largest page size available. The actual page size may vary if the requested size cannot be fulfilled.
- +Odataprefetch=direct
- FOPTIMIZE
- +Odataprefetch=kind
  
  Control generation of data prefetch instructions for data structures referenced within innermost loops. The defined values for kind are:
  - direct - Enable generation of data prefetch instructions for the benefit of direct memory accesses, but not indirect memory accesses.
  - indirect - Enable generation of data prefetch instructions for the benefit of both direct and indirect memory accesses. This is the default at optimization levels +O2 and above.
  - none - Disable generation of data prefetch instructions. This is the default at optimization levels +O1 and below.
- -Wl,-N
- EXTRA_LDFLAGS
- In 32-bit mode only, cause the data to be placed immediately following the text, and make the text writable. Files of this type cannot be shared.

465.tonto

- +Oprofile=collect:all
- hp_cc,hp_aCC,hp_f90
- PASS1_FFLAGS, PASS1_LDFFLAGS
- Instrument the application to enable collection of profile based optimization data. Qualifiers are a comma-separated list of profile collection qualifiers. The profile collection qualifiers are:
  - arc - Enable collection of arc counts.
  - dcache - Enable collection of data cache misses.
  - stride - Enable collection of stride data.
  - loopiter - Enable collection of loop iteration counts.
  - all - Enable collection of all types of profile data. Equivalent to the command +Oprofile=collect:arc,dcache,stride,loopiter.
- +Oprofile=use
- hp_cc,hp_aCC,hp_f90
- PASS2_FFLAGS, PASS2_LDFFLAGS
- Examine the profile database file produced by an instrumented program to perform profile based optimizations on the code. Some optimizations are only enabled when a feedback data file is available.
- +Ofaster
- hp_f90
- FOPTIMIZE
- This option selects +Ofast, but with the optimization level increased to +O4. It also implies -ipo.
- Includes:
  - +Ofast
    - +O2
      
      +O1
    - +Onolimit
    - +Ofltacc=relaxed
    - +DSnative
    - +FPD
    - -Wl,+pi,1M
    - -Wl,+pd,1M
    - +mergeseg
  - +O4
    - +O3
      
      +O2
      
      +O1
    - -ipo
- -Wl,-a,archive_shared
- FOPTIMIZE
- Specifies whether shared or archive libraries are searched with the -l option. For archive_shared, the archive form is preferred, but the shared form is allowed.
- -Wl,+pd,64M
- FOPTIMIZE
- Request a particular virtual memory page size that should be used for data. Sizes of 4K, 16K, 64K, 256K, 1M, 4M, 16M, 64M, 256M, 1G, 4G, D, and L are supported. A size of D allows the kernel to choose what page size should be used. A size of L results in using the largest page size available. The actual page size may vary if the requested size cannot be fulfilled.
- -Wl,+pi,64M
- FOPTIMIZE
- Request a particular virtual memory page size that should be used for instructions. Sizes of 4K, 16K, 64K, 256K, 1M, 4M, 16M, 64M, 256M, 1G, 4G, D, and L are supported. A size of D allows the kernel to choose what page size should be used. A size of L results in using the largest page size available. The actual page size may vary if the requested size cannot be fulfilled.
- +Odataprefetch=direct
- FOPTIMIZE
- +Odataprefetch=kind
  
  Control generation of data prefetch instructions for data structures referenced within innermost loops. The defined values for kind are:
  - direct - Enable generation of data prefetch instructions for the benefit of direct memory accesses, but not indirect memory accesses.
  - indirect - Enable generation of data prefetch instructions for the benefit of both direct and indirect memory accesses. This is the default at optimization levels +O2 and above.
  - none - Disable generation of data prefetch instructions. This is the default at optimization levels +O1 and below.

Benchmarks using both Fortran and C

435.gromacs

- +Oprofile=collect:all
- hp_cc,hp_aCC,hp_f90
- PASS1_CFLAGS, PASS1_FFLAGS, PASS1_LDFFLAGS
- Instrument the application to enable collection of profile based optimization data. Qualifiers are a comma-separated list of profile collection qualifiers. The profile collection qualifiers are:
  - arc - Enable collection of arc counts.
  - dcache - Enable collection of data cache misses.
  - stride - Enable collection of stride data.
  - loopiter - Enable collection of loop iteration counts.
  - all - Enable collection of all types of profile data. Equivalent to the command +Oprofile=collect:arc,dcache,stride,loopiter.
- +Oprofile=use
- hp_cc,hp_aCC,hp_f90
- PASS2_CFLAGS, PASS2_FFLAGS, PASS2_LDFFLAGS
- Examine the profile database file produced by an instrumented program to perform profile based optimizations on the code. Some optimizations are only enabled when a feedback data file is available.
- +Ofaster
- hp_cc,hp_aCC
- COPTIMIZE
- This option selects +Ofast, but with the optimization level increased to +O4.
- Includes:
  - +Ofast
    - +O2
      
      +O1
    - +Onolimit
    - +Ofltacc=relaxed
    - +DSnative
    - +FPD
    - -Wl,+pi,1M
    - -Wl,+pd,1M
    - +mergeseg
  - +O4
    - +O3
      
      +O2
      
      +O1
    - -ipo
- +Otype_safety=ansi
- hp_cc,hp_aCC
- COPTIMIZE
- Enable [disable] aliasing across types.
  - off - The default. Specifies that aliasing can occur freely across types. This is a synonym to +Onoptrs_ansi and +Onoptrs_strongly_typed options in legacy cc.
  - limited - Code follows ANSI aliasing rules. Unnamed objects should be treated as if they had an unknown type.
  - ansi - Code follows ANSI aliasing rules, and unnamed objects should be treated the same as named objects. This option is synonym to +Optrs_ansi option in legacy cc.
  - strong - Code follows ANSI aliasing rules, except that accesses through lvalues of a character type are not permitted to touch objects of other types. This assumes that field addresses are not taken. This option is synonym to +Optrs_strongly_typed option in legacy cc.
- -Wl,-a,archive_shared
- COPTIMIZE, FOPTIMIZE
- Specifies whether shared or archive libraries are searched with the -l option. For archive_shared, the archive form is preferred, but the shared form is allowed.
- -Wl,+pd,64M
- COPTIMIZE, FOPTIMIZE
- Request a particular virtual memory page size that should be used for data. Sizes of 4K, 16K, 64K, 256K, 1M, 4M, 16M, 64M, 256M, 1G, 4G, D, and L are supported. A size of D allows the kernel to choose what page size should be used. A size of L results in using the largest page size available. The actual page size may vary if the requested size cannot be fulfilled.
- -Wl,+pi,64M
- COPTIMIZE, FOPTIMIZE
- Request a particular virtual memory page size that should be used for instructions. Sizes of 4K, 16K, 64K, 256K, 1M, 4M, 16M, 64M, 256M, 1G, 4G, D, and L are supported. A size of D allows the kernel to choose what page size should be used. A size of L results in using the largest page size available. The actual page size may vary if the requested size cannot be fulfilled.
- +Onoparmsoverlap
- COPTIMIZE
- Optimize with the assumption that subprogram arguments do [do not] refer to the same memory. This option can be used at optimization levels 2, 3, and 4.
- +Ofaster
- hp_f90
- FOPTIMIZE
- This option selects +Ofast, but with the optimization level increased to +O4. It also implies -ipo.
- Includes:
  - +Ofast
    - +O2
      
      +O1
    - +Onolimit
    - +Ofltacc=relaxed
    - +DSnative
    - +FPD
    - -Wl,+pi,1M
    - -Wl,+pd,1M
    - +mergeseg
  - +O4
    - +O3
      
      +O2
      
      +O1
    - -ipo

481.wrf

- basepeak = yes

Implicitly Included Flags

This section contains descriptions of flags that were included implicitly by other flags, but which do not have a permanent home at SPEC.

System and Other Tuning Information

maxdsiz, maxdsiz_64bit - maximum size (in bytes) of the data segment for any user process

maxssiz, maxssiz_64bit - maximum size (in bytes) of the stack for any user process

dbc_min_pct - minimum percentage of memory used for caching file I/O data and metadata

dbc_max_pct - maximum percentage of memory to be used for caching file I/O data and metadata

For questions about the meanings of these flags, please contact the tester.
For other inquiries, please contact webmaster@spec.org
Copyright 2006-2014 Standard Performance Evaluation Corporation
Tested with SPEC CPU2006 v1.0.
Report generated on Tue Jul 22 10:06:26 2014 by SPEC CPU2006 flags formatter v6906.

	Indicates that the flag description came from the user flags file.
	Indicates that the flag description came from the suite-wide flags file.
	Indicates that the flag description came from a per-benchmark flags file.

CPU2006 Flag DescriptionHewlett-Packard Company HP Integrity rx2620 (1.6GHz/18MB Dual-Core Intel Itanium 2)

Base Compiler Invocation

Peak Compiler Invocation

Base Portability Flags

Peak Portability Flags

Base Optimization Flags

Peak Optimization Flags

Implicitly Included Flags

CPU2006 Flag Description
Hewlett-Packard Company HP Integrity rx2620 (1.6GHz/18MB Dual-Core Intel Itanium 2)