Re: Re: gtk+ and MPI

[Jim Parker <hopeye cfl rr com>]

Hmmm, 

Well in my particular case only the "head node" wants or needs a GUI ....

Could you do the GTK+ initialization after the MPI initialization and
within a if block as follows:

int main (int argc, char *argv[ ] )
{

MPI_Init(&argc, &argv);
MPI_Comm_size( ...);
MPI_Comm_rank ( ... );

if (my_node == 0)
{
        gtk_init (&argc, &argv);
        /* other initialization stuff */
        gtk_main()
}

/* rest of code */

}


cheers,
Jim Parker

On Sat, 02 Feb 2002, Stewart Adcock wrote:
> Date: Sat, 02 Feb 2002 16:40:03 +0000
> To: gtk-app-devel-list gnome org
> From: Stewart Adcock <stewart bellatrix pcl ox ac uk>
> Sender: gtk-app-devel-list-admin gnome org
> Subject: Re: gtk+ and MPI
>
> Hi,
>
> Havoc Pennington wrote:
>  > Just call MPI_init() after gtk_init(), gtk_init() removes the
>  > arguments it understands but leaves other arguments unmodified.
>
> Calling MPI_Init() before gtk_init() will almost certianly work too, 
> subject to the exact implementation of MPI.  (And this is much more 
> convenient when only one process needs the GUI).  I have such an 
> application, and it works fine with all the versions of MPI that I've
> tried.
>
> LAM/MPI definitely ignores the arguments anyway.
>
> Stewart.
>
> -- 
> ____________________________________________________________________
> Stewart Adcock   stewart linux-domain com   www.stewart-adcock.co.uk
> Dept. Chemistry & Biochemistry, University of California, San Diego
> 4234 Urey Hall, 9500 Gilman Drive, La Jolla, CA 92093-0365 USA
> lab: +1 858 534 0956 home: +1 858 453 2577
>
>
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