From: Andreas Dorn Newsgroups: comp.os.msdos.djgpp Subject: Re: Large Arrays Date: Fri, 06 Jul 2001 00:42:54 +0200 Organization: University of Heidelberg, Germany Lines: 19 Message-ID: <3B44ED6E.E3EDD428@web.de> References: <3B447193 DOT E7BA25AB AT ix DOT urz DOT uni-heidelberg DOT de> <9i1vcr$8op$1 AT nets3 DOT rz DOT RWTH-Aachen DOT DE> NNTP-Posting-Host: ppp304.urz.uni-heidelberg.de Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Trace: news.urz.uni-heidelberg.de 994372911 3644 129.206.203.104 (5 Jul 2001 22:41:51 GMT) X-Complaints-To: usenet AT news DOT urz DOT uni-heidelberg DOT de NNTP-Posting-Date: 5 Jul 2001 22:41:51 GMT X-Mailer: Mozilla 4.7 [de]C-CCK-MCD CSO 1.0 (Win95; I) X-Accept-Language: de,en To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Reply-To: djgpp AT delorie DOT com Hans-Bernhard Broeker wrote: > Andreas Dorn wrote: > > I need a really large array for a matrix (~100 MB). > > Fine. But you should re-think the way you're using to create it. > > [.. inside main(): ..] > > float TheMatrix[Dimension][Dimension]; > > This creates the matrix in the stack. That's bad, because the stack > has a fixed maximal size, on DOS/DJGPP (and several other platforms). > Use the heap, instead (--> 'new' or 'malloc'). Methods for creating 2D > dynamical arrays that still can be accessed by a[i][j] notation are in > the comp.lang.c FAQ. Thank you for the hint. I re-arranged the Matrix definition and now everything works fine. Andreas Dorn