Re: Larger matrices

[johnscpg@googlemail.com]

amado.al...@gmail.com wrote:
> Upon failing miserably to convince GNAT to use a stack of 200M, I am
> currently working around the problem by writing my own matrix-by-
> vector multiplication function. It takes 2 seconds for a 5000 x 5000
> matrix, but it does not explode.
>
> I continue interested in ways to augment the stack size (or another
> way) to enable use of the standard library. Not so much for speed, but
> more for validation (GNAT passes ACATS right? Are ACATS for this
> library setup yet?)
>
> Thanks a lot.

I'm not sure if this relevant to your problem, but when I get
segmentation fault
in linux, its usually due to insufficient stack mem in the shell I'm
in.
Read up on: ulimit  for bash shell. I use bash, and the command is
 ulimit -s <some number of Megs>.  I get lazy and type

 ulimit -s unlimited

 For csh I seem to recall its: limit stacksize unlimited.

    in BASH:
      ulimit -s unlimited
      (type "ulimit -s" to see stack setting.  The "s" is for stack.)
      (type "ulimit -a" to see all settings.)

    in CSH try:
      limit stacksize unlimited
      limit datasize unlimited
      (type "limit" to see settings.)

jonathan