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In article <276tfp$96n@nuscc.nus.sg>, engp3056@leonis.nus.sg (JEROME HANSABHAYA ELLEPOLA) writes:
|> I am writing a CFD code which needs 10, arrays of [101][801] in the main
|> program.
|> 
|> In one function there is another 5, arrays of [101][801],
|> the program runs fine on a Spark10 but core dumps ( segmentation fault )
|> at that point.
|> 
|> When the arrays are defined as floats things seem to work.
|> 
|> I have about 64MB of RAM, and assuming that all functions use the memory
|> at all times, with 3 functions I would need (3*5+8)*101*801*4=15MB
|> 
|> Hardly a problem right?
|> 
|> I look forward to any pointers.
|> 
|> Regards
|> 
|> Jerome

What about explicitly using malloc?

Look at those two programs:
#include <stdio.h>

#define BIG 10000000


void main( void)
{
   double big[ BIG];
   

   printf( "Success\n");
}
This programs compiles but dies on my SparcStation 10.

This one here works fine and prints 'Success':
#include <malloc.h>
#include <stdio.h>

#define BIG 10000000


void main( void)
{
   double  *big;
   
   big = malloc( BIG * sizeof( double));
   if (big != NULL)
      {
         printf( "Success\n");
      }
   else
      {
         printf( "Failed\n");
      }
}


I hope this helps...

  Stephan

BTW: Why do you use static array definitions in C ?
     Or is it just an F2Ced f77 source?

-- 
Stephan Melin                     | 38# 70" Hoyt GoldMedalist, 32.5" ACE 430
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