switch back to unit time in seconds, prepare for parallel computing

main.py

@@ -27,9 +27,9 @@ def main():
     v = np.array([v1, v2, v3],dtype=np.longdouble)
 
     #integration parameters
-    duration, step = 100*yr/yr, np.array([1./(365.25*2.), 1./(365.25*1.), 5./(365.25*1.)],dtype=np.longdouble)*yr/yr #integration time and step in years
+    duration, step = 100*yr, np.array([60.],dtype=np.longdouble) #integration time and step in seconds
     step = np.sort(step)[::-1]
-    integrator = "hermite"
+    integrator = "leapfrog"
     n_bodies = 3
     display = False
     savename = "{0:d}bodies_{1:s}".format(n_bodies, integrator)