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Re: change to gcc from lcc
Hi,
On Wed, 19 Nov 2008, H.J. Lu wrote:
> On Wed, Nov 19, 2008 at 7:18 PM, Nicholas Nethercote
> <njn@csse.unimelb.edu.au> wrote:
> > On Tue, 18 Nov 2008, H.J. Lu wrote:
> >
> >>> I used malloc to create my arrays instead of creating the in the stack.
> >>> My program is working now but it is very slow.
> >>>
> >>> I use two-dimensional arrays. The way I access element (i,j) is:
> >>> array_name[i*row_length+j]
> >>>
> >>> The server that I use has 16GB ram. The ulimit -a command gives the
> >>> following output:
> >>> time(seconds) unlimited
> >>> file(blocks) unlimited
> >>> data(kbytes) unlimited
> >>> stack(kbytes) 8192
> >>
> >> ^^^^^^^^^^^^^^^^^^^^^^^^
> >>
> >> That limits stack to 8MB. Please change it to 1GB.
> >
> > Why?
> >
>
> int buffer1[250][1000000];
>
> takes close to 1GB on stack.
Read the lines you quoted carefully again.
Ciao,
Michael.