CPU2006 Flag Description
Bull SAS NovaScale T840 (1.86 GHz, Intel Xeon E5320)

Base Optimization Flags

C benchmarks

• • -fast
  • 
  • OPTIMIZE

  • The -fast option enhances execution speed across the entire program by including the following options that can improve run-time performance:

    -O3   (maximum speed and high-level optimizations)

    -Qipo (enables interprocedural optimizations across files)

    -QxP  (generate code specialized for Intel Pentium 4 processor and compatible Intel processors with Streaming SIMD Extensions 3)

    -Qprec-div- (disable -Qprec-div) where -Qprec-div improves precision of FP divides (some speed impact)

    To override one of the options set by /fast, specify that option after the -fast option on the command line. The exception is the xP or QxP option which can't be overridden. The options set by /fast may change from release to release.

  • Includes:
    • -O3
      • -GF
      • -Gf
      • -Ob_n
      • -O2
        • -Oi-
        • -Gs
        • -Oy
        • -Gy
        • -Os
        • -GF
        • -Gf
        • -Ob_n
        • -Og
        • -O1
          • -Qunroll_n
          • -Oi-
          • -Op-
          • -Oy
          • -Gy
          • -Os
          • -GF
          • -Gf
          • -Ob_n
          • -Og
    • -Qipo
    • -QxP
    • -Qprec-div-
• • /F950000000
  • 
  • EXTRA_LDFLAGS

  • Specifies the stack reserve amount for the program.

    F<n>
    <n> is the stack reserve amount in bytes. It can be specified as a decimal integer or by using a C-style convention for constants (for example, -F0x1000).
    Default: The stack size default is chosen by the operating system.

• • shlw32m.lib
  • 
  • EXTRA_LIBS

  • MicroQuill SmartHeap Library 8.0 available from http://www.microquill.com/

• • -link /FORCE:MULTIPLE
  • 
  • LDOUT

  • Enable SmartHeap library usage by forcing the linker to ignore multiple definitions

C++ benchmarks

• • -fast
  • 
  • OPTIMIZE

  • The -fast option enhances execution speed across the entire program by including the following options that can improve run-time performance:

    -O3   (maximum speed and high-level optimizations)

    -Qipo (enables interprocedural optimizations across files)

    -QxP  (generate code specialized for Intel Pentium 4 processor and compatible Intel processors with Streaming SIMD Extensions 3)

    -Qprec-div- (disable -Qprec-div) where -Qprec-div improves precision of FP divides (some speed impact)

    To override one of the options set by /fast, specify that option after the -fast option on the command line. The exception is the xP or QxP option which can't be overridden. The options set by /fast may change from release to release.

  • Includes:
    • -O3
      • -GF
      • -Gf
      • -Ob_n
      • -O2
        • -Oi-
        • -Gs
        • -Oy
        • -Gy
        • -Os
        • -GF
        • -Gf
        • -Ob_n
        • -Og
        • -O1
          • -Qunroll_n
          • -Oi-
          • -Op-
          • -Oy
          • -Gy
          • -Os
          • -GF
          • -Gf
          • -Ob_n
          • -Og
    • -Qipo
    • -QxP
    • -Qprec-div-
• • -Qcxx_features
  • 
  • CXXOPTIMIZE

  • Enable C++ Exception Handling and RTTI. This option has the same effect as specifying /GX /GR.

  • Includes:
    • -GX
    • -GR
• • /F950000000
  • 
  • EXTRA_LDFLAGS

  • Specifies the stack reserve amount for the program.

    F<n>
    <n> is the stack reserve amount in bytes. It can be specified as a decimal integer or by using a C-style convention for constants (for example, -F0x1000).
    Default: The stack size default is chosen by the operating system.

• • shlw32m.lib
  • 
  • EXTRA_LIBS

  • MicroQuill SmartHeap Library 8.0 available from http://www.microquill.com/

• • -link /FORCE:MULTIPLE
  • 
  • LDOUT

  • Enable SmartHeap library usage by forcing the linker to ignore multiple definitions

Fortran benchmarks

• • -fast
  • 
  • OPTIMIZE

  • The -fast option enhances execution speed across the entire program by including the following options that can improve run-time performance:

    -O3   (maximum speed and high-level optimizations)

    -Qipo (enables interprocedural optimizations across files)

    -QxP  (generate code specialized for Intel Pentium 4 processor and compatible Intel processors with Streaming SIMD Extensions 3)

    -Qprec-div- (disable -Qprec-div) where -Qprec-div improves precision of FP divides (some speed impact)

    To override one of the options set by /fast, specify that option after the -fast option on the command line. The exception is the xP or QxP option which can't be overridden. The options set by /fast may change from release to release.

  • Includes:
    • -O3
      • -GF
      • -Gf
      • -Ob_n
      • -O2
        • -Oi-
        • -Gs
        • -Oy
        • -Gy
        • -Os
        • -GF
        • -Gf
        • -Ob_n
        • -Og
        • -O1
          • -Qunroll_n
          • -Oi-
          • -Op-
          • -Oy
          • -Gy
          • -Os
          • -GF
          • -Gf
          • -Ob_n
          • -Og
    • -Qipo
    • -QxP
    • -Qprec-div-
• • /F950000000
  • 
  • EXTRA_LDFLAGS

  • Specifies the stack reserve amount for the program.

    F<n>
    <n> is the stack reserve amount in bytes. It can be specified as a decimal integer or by using a C-style convention for constants (for example, -F0x1000).
    Default: The stack size default is chosen by the operating system.

• • -link /FORCE:MULTIPLE
  • 
  • LDOUT

  • Enable SmartHeap library usage by forcing the linker to ignore multiple definitions

Benchmarks using both Fortran and C

• • -fast
  • 
  • OPTIMIZE

  • The -fast option enhances execution speed across the entire program by including the following options that can improve run-time performance:

    -O3   (maximum speed and high-level optimizations)

    -Qipo (enables interprocedural optimizations across files)

    -QxP  (generate code specialized for Intel Pentium 4 processor and compatible Intel processors with Streaming SIMD Extensions 3)

    -Qprec-div- (disable -Qprec-div) where -Qprec-div improves precision of FP divides (some speed impact)

    To override one of the options set by /fast, specify that option after the -fast option on the command line. The exception is the xP or QxP option which can't be overridden. The options set by /fast may change from release to release.

  • Includes:
    • -O3
      • -GF
      • -Gf
      • -Ob_n
      • -O2
        • -Oi-
        • -Gs
        • -Oy
        • -Gy
        • -Os
        • -GF
        • -Gf
        • -Ob_n
        • -Og
        • -O1
          • -Qunroll_n
          • -Oi-
          • -Op-
          • -Oy
          • -Gy
          • -Os
          • -GF
          • -Gf
          • -Ob_n
          • -Og
    • -Qipo
    • -QxP
    • -Qprec-div-
• • /F950000000
  • 
  • EXTRA_LDFLAGS

  • Specifies the stack reserve amount for the program.

    F<n>
    <n> is the stack reserve amount in bytes. It can be specified as a decimal integer or by using a C-style convention for constants (for example, -F0x1000).
    Default: The stack size default is chosen by the operating system.

• • -link /FORCE:MULTIPLE
  • 
  • LDOUT

  • Enable SmartHeap library usage by forcing the linker to ignore multiple definitions

Peak Optimization Flags

C benchmarks

• • -Qprof_gen
  • 
  • PASS1_CFLAGS, PASS1_LDFLAGS

  • Instrument program for profiling for the first phase of two-phase profile guided otimization. This instrumentation gathers information about a program's execution paths and data values but does not gather information from hardware performance counters. The profile instrumentation also gathers data for optimizations which are unique to profile-feedback optimization.

• • -Qprof_use
  • 
  • PASS2_CFLAGS, PASS2_LDFLAGS

  • Instructs the compiler to produce a profile-optimized executable and merges available dynamic information (.dyn) files into a pgopti.dpi file. If you perform multiple executions of the instrumented program, -Qprof_use merges the dynamic information files again and overwrites the previous pgopti.dpi file.
    Without any other options, the current directory is searched for .dyn files

• • -fast
  • 
  • OPTIMIZE

  • The -fast option enhances execution speed across the entire program by including the following options that can improve run-time performance:

    -O3   (maximum speed and high-level optimizations)

    -Qipo (enables interprocedural optimizations across files)

    -QxP  (generate code specialized for Intel Pentium 4 processor and compatible Intel processors with Streaming SIMD Extensions 3)

    -Qprec-div- (disable -Qprec-div) where -Qprec-div improves precision of FP divides (some speed impact)

    To override one of the options set by /fast, specify that option after the -fast option on the command line. The exception is the xP or QxP option which can't be overridden. The options set by /fast may change from release to release.

  • Includes:
    • -O3
      • -GF
      • -Gf
      • -Ob_n
      • -O2
        • -Oi-
        • -Gs
        • -Oy
        • -Gy
        • -Os
        • -GF
        • -Gf
        • -Ob_n
        • -Og
        • -O1
          • -Qunroll_n
          • -Oi-
          • -Op-
          • -Oy
          • -Gy
          • -Os
          • -GF
          • -Gf
          • -Ob_n
          • -Og
    • -Qipo
    • -QxP
    • -Qprec-div-
• • /F950000000
  • 
  • EXTRA_LDFLAGS

  • Specifies the stack reserve amount for the program.

    F<n>
    <n> is the stack reserve amount in bytes. It can be specified as a decimal integer or by using a C-style convention for constants (for example, -F0x1000).
    Default: The stack size default is chosen by the operating system.

• • shlw32m.lib
  • 
  • EXTRA_LIBS

  • MicroQuill SmartHeap Library 8.0 available from http://www.microquill.com/

• • -link /FORCE:MULTIPLE
  • 
  • LDOUT

  • Enable SmartHeap library usage by forcing the linker to ignore multiple definitions

C++ benchmarks

• • -Qprof_gen
  • 
  • PASS1_CXXFLAGS, PASS1_LDFLAGS

  • Instrument program for profiling for the first phase of two-phase profile guided otimization. This instrumentation gathers information about a program's execution paths and data values but does not gather information from hardware performance counters. The profile instrumentation also gathers data for optimizations which are unique to profile-feedback optimization.

• • -Qprof_use
  • 
  • PASS2_CXXFLAGS, PASS2_LDFLAGS

  • Instructs the compiler to produce a profile-optimized executable and merges available dynamic information (.dyn) files into a pgopti.dpi file. If you perform multiple executions of the instrumented program, -Qprof_use merges the dynamic information files again and overwrites the previous pgopti.dpi file.
    Without any other options, the current directory is searched for .dyn files

• • -fast
  • 
  • OPTIMIZE

  • The -fast option enhances execution speed across the entire program by including the following options that can improve run-time performance:

    -O3   (maximum speed and high-level optimizations)

    -Qipo (enables interprocedural optimizations across files)

    -QxP  (generate code specialized for Intel Pentium 4 processor and compatible Intel processors with Streaming SIMD Extensions 3)

    -Qprec-div- (disable -Qprec-div) where -Qprec-div improves precision of FP divides (some speed impact)

    To override one of the options set by /fast, specify that option after the -fast option on the command line. The exception is the xP or QxP option which can't be overridden. The options set by /fast may change from release to release.

  • Includes:
    • -O3
      • -GF
      • -Gf
      • -Ob_n
      • -O2
        • -Oi-
        • -Gs
        • -Oy
        • -Gy
        • -Os
        • -GF
        • -Gf
        • -Ob_n
        • -Og
        • -O1
          • -Qunroll_n
          • -Oi-
          • -Op-
          • -Oy
          • -Gy
          • -Os
          • -GF
          • -Gf
          • -Ob_n
          • -Og
    • -Qipo
    • -QxP
    • -Qprec-div-
• • -Qcxx_features
  • 
  • CXXOPTIMIZE

  • Enable C++ Exception Handling and RTTI. This option has the same effect as specifying /GX /GR.

  • Includes:
    • -GX
    • -GR
• • /F950000000
  • 
  • EXTRA_LDFLAGS

  • Specifies the stack reserve amount for the program.

    F<n>
    <n> is the stack reserve amount in bytes. It can be specified as a decimal integer or by using a C-style convention for constants (for example, -F0x1000).
    Default: The stack size default is chosen by the operating system.

• • shlw32m.lib
  • 
  • EXTRA_LIBS

  • MicroQuill SmartHeap Library 8.0 available from http://www.microquill.com/

• • -link /FORCE:MULTIPLE
  • 
  • LDOUT

  • Enable SmartHeap library usage by forcing the linker to ignore multiple definitions

Fortran benchmarks

410.bwaves

• • -Qprof_gen
  • 
  • PASS1_FFLAGS, PASS1_LDFLAGS

  • Instrument program for profiling for the first phase of two-phase profile guided otimization. This instrumentation gathers information about a program's execution paths and data values but does not gather information from hardware performance counters. The profile instrumentation also gathers data for optimizations which are unique to profile-feedback optimization.

• • -Qprof_use
  • 
  • PASS2_FFLAGS, PASS2_LDFLAGS

  • Instructs the compiler to produce a profile-optimized executable and merges available dynamic information (.dyn) files into a pgopti.dpi file. If you perform multiple executions of the instrumented program, -Qprof_use merges the dynamic information files again and overwrites the previous pgopti.dpi file.
    Without any other options, the current directory is searched for .dyn files

• • -fast
  • 
  • OPTIMIZE

  • The -fast option enhances execution speed across the entire program by including the following options that can improve run-time performance:

    -O3   (maximum speed and high-level optimizations)

    -Qipo (enables interprocedural optimizations across files)

    -QxP  (generate code specialized for Intel Pentium 4 processor and compatible Intel processors with Streaming SIMD Extensions 3)

    -Qprec-div- (disable -Qprec-div) where -Qprec-div improves precision of FP divides (some speed impact)

    To override one of the options set by /fast, specify that option after the -fast option on the command line. The exception is the xP or QxP option which can't be overridden. The options set by /fast may change from release to release.

  • Includes:
    • -O3
      • -GF
      • -Gf
      • -Ob_n
      • -O2
        • -Oi-
        • -Gs
        • -Oy
        • -Gy
        • -Os
        • -GF
        • -Gf
        • -Ob_n
        • -Og
        • -O1
          • -Qunroll_n
          • -Oi-
          • -Op-
          • -Oy
          • -Gy
          • -Os
          • -GF
          • -Gf
          • -Ob_n
          • -Og
    • -Qipo
    • -QxP
    • -Qprec-div-
• • /F950000000
  • 
  • EXTRA_LDFLAGS

  • Specifies the stack reserve amount for the program.

    F<n>
    <n> is the stack reserve amount in bytes. It can be specified as a decimal integer or by using a C-style convention for constants (for example, -F0x1000).
    Default: The stack size default is chosen by the operating system.

• • -link /FORCE:MULTIPLE
  • 
  • LDOUT

  • Enable SmartHeap library usage by forcing the linker to ignore multiple definitions

416.gamess

• • -fast
  • 
  • OPTIMIZE

  • The -fast option enhances execution speed across the entire program by including the following options that can improve run-time performance:

    -O3   (maximum speed and high-level optimizations)

    -Qipo (enables interprocedural optimizations across files)

    -QxP  (generate code specialized for Intel Pentium 4 processor and compatible Intel processors with Streaming SIMD Extensions 3)

    -Qprec-div- (disable -Qprec-div) where -Qprec-div improves precision of FP divides (some speed impact)

    To override one of the options set by /fast, specify that option after the -fast option on the command line. The exception is the xP or QxP option which can't be overridden. The options set by /fast may change from release to release.

  • Includes:
    • -O3
      • -GF
      • -Gf
      • -Ob_n
      • -O2
        • -Oi-
        • -Gs
        • -Oy
        • -Gy
        • -Os
        • -GF
        • -Gf
        • -Ob_n
        • -Og
        • -O1
          • -Qunroll_n
          • -Oi-
          • -Op-
          • -Oy
          • -Gy
          • -Os
          • -GF
          • -Gf
          • -Ob_n
          • -Og
    • -Qipo
    • -QxP
    • -Qprec-div-
• • /F950000000
  • 
  • EXTRA_LDFLAGS

  • Specifies the stack reserve amount for the program.

    F<n>
    <n> is the stack reserve amount in bytes. It can be specified as a decimal integer or by using a C-style convention for constants (for example, -F0x1000).
    Default: The stack size default is chosen by the operating system.

• • -link /FORCE:MULTIPLE
  • 
  • LDOUT

  • Enable SmartHeap library usage by forcing the linker to ignore multiple definitions

434.zeusmp

• • Same as 410.bwaves

437.leslie3d

• • Same as 410.bwaves

459.GemsFDTD

• • Same as 410.bwaves

465.tonto

• • Same as 410.bwaves

Benchmarks using both Fortran and C

435.gromacs

• • -fast
  • 
  • OPTIMIZE

  • The -fast option enhances execution speed across the entire program by including the following options that can improve run-time performance:

    -O3   (maximum speed and high-level optimizations)

    -Qipo (enables interprocedural optimizations across files)

    -QxP  (generate code specialized for Intel Pentium 4 processor and compatible Intel processors with Streaming SIMD Extensions 3)

    -Qprec-div- (disable -Qprec-div) where -Qprec-div improves precision of FP divides (some speed impact)

    To override one of the options set by /fast, specify that option after the -fast option on the command line. The exception is the xP or QxP option which can't be overridden. The options set by /fast may change from release to release.

  • Includes:
    • -O3
      • -GF
      • -Gf
      • -Ob_n
      • -O2
        • -Oi-
        • -Gs
        • -Oy
        • -Gy
        • -Os
        • -GF
        • -Gf
        • -Ob_n
        • -Og
        • -O1
          • -Qunroll_n
          • -Oi-
          • -Op-
          • -Oy
          • -Gy
          • -Os
          • -GF
          • -Gf
          • -Ob_n
          • -Og
    • -Qipo
    • -QxP
    • -Qprec-div-
• • /F950000000
  • 
  • EXTRA_LDFLAGS

  • Specifies the stack reserve amount for the program.

    F<n>
    <n> is the stack reserve amount in bytes. It can be specified as a decimal integer or by using a C-style convention for constants (for example, -F0x1000).
    Default: The stack size default is chosen by the operating system.

• • -link /FORCE:MULTIPLE
  • 
  • LDOUT

  • Enable SmartHeap library usage by forcing the linker to ignore multiple definitions

436.cactusADM

• • -Qprof_gen
  • 
  • PASS1_CFLAGS, PASS1_FFLAGS, PASS1_LDFLAGS

  • Instrument program for profiling for the first phase of two-phase profile guided otimization. This instrumentation gathers information about a program's execution paths and data values but does not gather information from hardware performance counters. The profile instrumentation also gathers data for optimizations which are unique to profile-feedback optimization.

• • -Qprof_use
  • 
  • PASS2_CFLAGS, PASS2_FFLAGS, PASS2_LDFLAGS

  • Instructs the compiler to produce a profile-optimized executable and merges available dynamic information (.dyn) files into a pgopti.dpi file. If you perform multiple executions of the instrumented program, -Qprof_use merges the dynamic information files again and overwrites the previous pgopti.dpi file.
    Without any other options, the current directory is searched for .dyn files

• • -fast
  • 
  • OPTIMIZE

  • The -fast option enhances execution speed across the entire program by including the following options that can improve run-time performance:

    -O3   (maximum speed and high-level optimizations)

    -Qipo (enables interprocedural optimizations across files)

    -QxP  (generate code specialized for Intel Pentium 4 processor and compatible Intel processors with Streaming SIMD Extensions 3)

    -Qprec-div- (disable -Qprec-div) where -Qprec-div improves precision of FP divides (some speed impact)

    To override one of the options set by /fast, specify that option after the -fast option on the command line. The exception is the xP or QxP option which can't be overridden. The options set by /fast may change from release to release.

  • Includes:
    • -O3
      • -GF
      • -Gf
      • -Ob_n
      • -O2
        • -Oi-
        • -Gs
        • -Oy
        • -Gy
        • -Os
        • -GF
        • -Gf
        • -Ob_n
        • -Og
        • -O1
          • -Qunroll_n
          • -Oi-
          • -Op-
          • -Oy
          • -Gy
          • -Os
          • -GF
          • -Gf
          • -Ob_n
          • -Og
    • -Qipo
    • -QxP
    • -Qprec-div-
• • /F950000000
  • 
  • EXTRA_LDFLAGS

  • Specifies the stack reserve amount for the program.

    F<n>
    <n> is the stack reserve amount in bytes. It can be specified as a decimal integer or by using a C-style convention for constants (for example, -F0x1000).
    Default: The stack size default is chosen by the operating system.

• • -link /FORCE:MULTIPLE
  • 
  • LDOUT

  • Enable SmartHeap library usage by forcing the linker to ignore multiple definitions

454.calculix

• • Same as 436.cactusADM

481.wrf

• • Same as 435.gromacs