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Re: Autotuning parameters/heuristics within gcc - best place to start?
- From: Andi Kleen <andi at firstfloor dot org>
- To: Robert Stevenson <9golive9 at gmail dot com>
- Cc: gcc at gcc dot gnu dot org
- Date: Fri, 26 Sep 2014 07:47:05 -0700
- Subject: Re: Autotuning parameters/heuristics within gcc - best place to start?
- Authentication-results: sourceware.org; auth=none
- References: <CAFAOWhG-bNr3=u-wVhT3Sssi5OmQX+iQxvhHvxy9Nph7EBxB0g at mail dot gmail dot com>
Robert Stevenson <firstname.lastname@example.org> writes:
> I am planning to begin a project to explore the space of tuning gcc
> internals in an effort to increase performance. I am wondering if
> anyone can point to me any parameterizations, heuristics, or
> priorities functions within gcc that can be tuned/adjusted. Some
> general areas I am considering include register allocation and data
gcc has lots of params (see gcc -v --help=params) for different
areas that can be tuned. If you need more there's a generic
parameters frame work to add. And of course there are lots
of command line flags (see --help)
One example of an existing autotuner is the gccflags tuner in opentuner.
email@example.com -- Speaking for myself only