[Valgrind-users] Switching execution from valgrind to native

[Mohit T. <moh...@gm...>]

Hello,

I notice that running the floating point benchmarks (like ammp) takes a
substantial time. (ammp took ~15min natively and 1.5 hrs using nulgrind)
With Memcheck's ~50X overhead, it might take this 12.5 hrs to finish. Is
there a way I can switch between native and valgrind executions of a
program, so I could use a phase analyzing software like Simpoint to simulate
only certain instructions. (A simulator like ptlsim can do such
switching...) I saw in the tool_iface that any particular function can be
wrapped around with macros to execute them natively, but is there a way I
can insert switch_to_native() or switch_to_VG() calls in the profiled
program's (like ammp) code?

Thanks a lot,

Mohit