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Date: Thu, 30 Mar 2006 14:18:02 +0200
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: segfault on memory intensive programs
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On Mar 30 12:14, Dave Korn wrote:
> On 30 March 2006 12:08, Corinna Vinschen wrote:
> 
> 
> >>> #define  N          600 // Matrix rank
> >>> 	// We multiply m1 and m2, and put the result in m3.
> >>> 	int m1[N][N];
> >>> 	int m2[N][N];
> >>> 	int m3[N][N];
> 
> > No wonder.  600**3 * sizeof (int) * 3 == 2592000000 ~= 2.4 Gigs.
> 
>   Those matrices are only 2d!

Oh, hmm.  600**2 * sizeof (int) * 3 == 4320000 = 4.1 Megs.

Maybe reserving a stack bigger than 4Megs would help, though?


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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