Parallel GL

Hi all, I am doing some GL rendering and there are some serious delays due to iteration. Is there anyway to do this operation in parallel? In the operation below, the FPS drops from 75 to 25.

 void OnPostRender()
 {
     GL.PushMatrix();
     lineMaterial.SetPass(0);

     for (int i=0; i<100000; i++)
     {
             GL.Begin(GL.LINES);
             GL.Color(Color.cyan);
             GL.Vertex(line [0]);
             GL.Vertex(line [1]);
             GL.End();
     }
     GL.PopMatrix();

}