This is the mail archive of the fortran@gcc.gnu.org mailing list for the GNU Fortran project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: Threadprivate performance problem :::Gfortran on Windows (mingw32) with OpenMP

From: Janne Blomqvist <Janne dot Blomqvist at tkk dot fi>
To: Henry Kar Ming Chan <karminghenry at yahoo dot com>
Cc: FX Coudert <fxcoudert at gmail dot com>, "fortran at gcc dot gnu dot org" <fortran at gcc dot gnu dot org>
Date: Sun, 12 Nov 2006 13:01:07 +0200
Subject: Re: Threadprivate performance problem :::Gfortran on Windows (mingw32) with OpenMP
References: <20061112053754.28824.qmail@web30510.mail.mud.yahoo.com>

Henry Kar Ming Chan wrote:

Hi,all,
I just note that there is an article titled
"Techniques Supporting threadprivate in OpenMP" (web
page :
personals.ac.upc.edu/aduran/papers/2006/tls_hips06.pdf)
It is an interesting article about solving the performance problems of 'threadprivate'.

The OpenMP implementation in GCC already uses TLS for thread private variables on platforms where TLS is available. IIRC mingw32 doesn't support TLS.

--
Janne

References:
- Threadprivate performance problem :::Gfortran on Windows (mingw32) with OpenMP
  - From: Henry Kar Ming Chan

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]