Compile-Time and Link-Time Options by Language

Note: If you specify any of the options listed here, it is essential that you specify the option both at compile time and and at link time.

Option	Meaning
-fast	This option is a macro that you can effectively use as a starting point for tuning an executable for maximum run-time performance.
-m32\|64	Specifies the memory model for the compiled binary object.
-mt	Indicates compilation and linking for multithreaded code.
-xarch	Specifies the target architecture instruction set (ISA).
-xautopar	Turns on automatic parallelization for multiple processors.
-xexplicitpar	Parallelizes the loops that are specified.
-xhwcprof	Enables compiler support for hardware counter-based profiling.
-xipo	Performs interprocedural optimizations.
-xlinkopt	Performs link-time optimizations on relocatable object files.
-xmemalign	Specifies the maximum assumed memory alignment and the behavior of misaligned data accesses.
-xopenmp	Enable explicit parallelization with OpenMP directives.
-xpagesize	Set the preferred page size for the stack and the heap.
-xpagesize_heap	Set the preferred page size for the heap.
-xpagesize_stack	Set the preferred page size for the stack.
-xparallel	Parallelizes loops both automatically (by the compiler) and explicitly (as specified by the programmer).
-xpg	Compiles for profiling with the gprof profiler.
-xprofile	Collects or optimizes with runtime profiling data.
-xvector	Enables automatic generation of calls to the vector library and/or the generation of the SIMD (Single Instruction Multiple Data) instructions.

Option	Meaning
-fast	This option is a macro that you can effectively use as a starting point for tuning an executable for maximum run-time performance.
-m32\|64	Specifies the memory model for the compiled binary object.
-mt	Indicates compilation and linking for multithreaded code.
-xarch	Specifies the target architecture instruction set (ISA).
-xautopar	Turns on automatic parallelization for multiple processors.
-xhwcprof	Enables compiler support for hardware counter-based profiling.
-xipo	Performs interprocedural optimizations.
-xlinkopt	Performs link-time optimizations on relocatable object files.
-xmemalign	Specifies the maximum assumed memory alignment and the behavior of misaligned data accesses.
-xopenmp	Enable explicit parallelization with OpenMP directives.
-xpagesize	Set the preferred page size for the stack and the heap.
-xpagesize_heap	Set the preferred page size for the heap.
-xpagesize_stack	Set the preferred page size for the stack.
-xpg	Compiles for profiling with the gprof profiler.
-xprofile	Collects or optimizes with runtime profiling data.
-xvector	Enables automatic generation of calls to the vector library and/or the generation of the SIMD (Single Instruction Multiple Data) instructions.

Option	Meaning
-fast	This option is a macro that you can effectively use as a starting point for tuning an executable for maximum run-time performance.
-m32\|64	Specifies the memory model for the compiled binary object.
-mt	Indicates compilation and linking for multithreaded code.
-xarch	Specifies the target architecture instruction set (ISA).
-xautopar	Turns on automatic parallelization for multiple processors.
-xexplicitpar	Parallelizes the loops that are specified.
-xipo	Performs interprocedural optimizations.
-xlinkopt	Performs link-time optimizations on relocatable object files.
-xmemalign	Specifies the maximum assumed memory alignment and the behavior of misaligned data accesses.
-xopenmp	Enable explicit parallelization with OpenMP directives.
-xpagesize	Set the preferred page size for the stack and the heap.
-xpagesize_heap	Set the preferred page size for the heap.
-xpagesize_stack	Set the preferred page size for the stack.
-xparallel	Parallelizes loops both automatically (by the compiler) and explicitly (as specified by the programmer).
-xpg	Compiles for profiling with the gprof profiler.
-xprofile	Collects or optimizes with runtime profiling data.
-xvector	Enables automatic generation of calls to the vector library and/or the generation of the SIMD (Single Instruction Multiple Data) instructions.