(* param 1 = taille des matrices au depart
   param 2 = incrementation
   param 3 = taille des matrices ŕ l'arrive
   param 4 = nombre d'itérations *)

open Bsmllib
open Bsmlcomm

let multiplication n zero add mul a b c =
  let tmp=ref zero in
  for i=0 to n-1 do
   for j=0 to n-1 do
    tmp:=zero;
    (* let rec loop tmp k =
     if k=n then tmp else loop (add tmp (mul b.(k*n+j) a.(i*n+k))) (k+1)
    in 
     c.(i*n+j)<-loop zero 0 *)
    for k=0 to n-1 do
     tmp:= add (!tmp) (mul b.(k*n+j) a.(i*n+k)) 
    done; 
    c.(i*n+j)<-(!tmp)    
   done
  done

let random_complex n = {Complex.re=Random.float n; im=Random.float n}

let matrixRandom n = Array.init (n*n) (fun _ -> random_complex 1000.)

let _ = 
        Bsmllib.initialize();
	Random.self_init();
        let i = ref (int_of_string (argv()).(1))
	and pas=(int_of_string (argv()).(2))
	and maxi=(int_of_string (argv()).(3)) 
	and iter=(int_of_string (argv()).(4)) in
	while !i<maxi do
         let a=matrixRandom (!i)
         and b=matrixRandom (!i)
         and c=Array.make ((!i)*(!i)) Complex.zero in
	 ignore(bench_fun (fun () -> 
                 ignore(multiplication (!i) Complex.zero Complex.add 
		                                      Complex.mul a b c)) iter);
	 i:=!i+pas;
	done