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Re: [Patch, libfortran] Use high resolution clock if available, timing cleanup

From: Tobias Burnus <burnus at net-b dot de>
To: Janne Blomqvist <blomqvist dot janne at gmail dot com>
Cc: Fortran List <fortran at gcc dot gnu dot org>, GCC Patches <gcc-patches at gcc dot gnu dot org>
Date: Mon, 31 Jan 2011 21:57:15 +0100
Subject: Re: [Patch, libfortran] Use high resolution clock if available, timing cleanup
References: <AANLkTikNqhqPaeAYdf4nac_NrGEGBFvYpEpcJRx=o3UK@mail.gmail.com>

Janne Blomqvist wrote:

2) Uses clock_gettime() if available, and if so in particular:
       2a) enables up to nanosecond resolution for system_clock_8.

I wonder whether one should update http://gcc.gnu.org/onlinedocs/gfortran/CPU_005fTIME.html - I maybe it would be useful to document that a REAL(8) argument leads to higher precision than REAL(4).

Tobias

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  - From: Janne Blomqvist

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