Array in structure issue

Hello everybody. I'm trying to create the structure describing particles with some positions and velocity. I'm doing the following:

#define SIZE 1000000
#define nx 1000

typedef struct Species{
  double x[SIZE];
  double y[SIZE];
  double vx[SIZE];
  double vy[SIZE];
  double vz[SIZE];
  double dens[nx];
  double charge;
  double mass;
  long int num; //actual number of particles
  double QtoM;
  double sw; //weight of macroparticles
  char *bc_l;
  char *bc_r;
} species;

What I have tried:

I fill all arrays within the main function. When I compile the code, I don't see any warning or error message. But, when I run it, I see the message "stack overflow". As I understand correctly, the problem is with SIZE=1000000 because the code runs when I use SIZE=10000. Can anybody help me with this?

Thanks.May be, I should change my approach?

Tags: C