On Wed, 2 Sep 2009, Duncan Murdoch wrote:
Debabrata Midya wrote:
Dear R users,
Thanks in advance.
I am using R 2.9.1 on Windows XP.
May I request you to assist me on the following:
I have downloaded Rtools29.exe and installed it today 02 Sep 2009 and I
have also provided the appropriate path variable for Rtools.
I have checked the version of gcc compiler in Rtools.exe is 4.2.1.
I have checked (in http://gcc.gnu.org/) the latest available gcc compiler
is 4.4.1. My objective is to use latest gnu gcc for openMP and I like to
link it to R (by creating *.dll).
How can I use latest version of gcc for openMP? And at the same time I
like to use Rtools as well.
I have moved this response to the R-devel mailing list, it's not really
appropriate for R-help.
Generally speaking the compiler used for a .dll need not be the same one used
for the rest of an application, so R won't care if you work out how to use
gcc 4.4.1 to build your dll. However:
- The scripts for building packages are written and tested against gcc
4.2.1; you may need to tweak them to work with a different compiler.
- As far as I know, there's no gcc 4.4.1 available for Windows, but 4.4.0 is
available on the MinGW site. So if you really need 4.4.1 you may need to
compile it yourself.
So this is a pretty difficult project. You can ask on the R-devel mailing
list for help, but there aren't many people who will be able to help you, so
you may be pretty much on your own.
To add to this:
- The MinGW gcc 4.4.0 is too buggy to build R successfully.
- I don't see that you need 4.4.0 to use OpenMP: I have used it with
4.2.1. (And note: that is not an offer of help to do so.)
Duncan Murdoch
Once again, thank you very much for the time you have given.
I am looking forward for your reply.
Regards,
Deb
--
Brian D. Ripley, rip...@stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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