09: Do things after file things

Exercise sheet 9/latticescalar.py

@@ -91,18 +91,7 @@ def main():
 	else:
 	    output_filename = args.f
 
-	# Measure
+	last_output_time = time.time()	
-	# TODO: Does mean_magn need to be a list?
-	mean_magn = []
-	phi_state = np.zeros((width,width,width,width))
-	run_scalar_MH(phi_state,lamb,kappa,delta,equil_sweeps * num_sites)
-	magnetizations = np.empty(measurements)
-	for i in range(measurements):
-		run_scalar_MH(phi_state,lamb,kappa,delta,measure_sweeps * num_sites)
-		magnetizations[i] = np.mean(phi_state)
-	mean, err = batch_estimate(np.abs(magnetizations),lambda x:np.mean(x),10)
-	mean_magn.append([mean,err])
-	
 	with h5py.File(output_filename,'a') as f:
 		if not "mean-magn" in f:
 			dataset = f.create_dataset("mean-magn", chunks=True, data=mean_magn)
@@ -118,5 +107,17 @@ def main():
 			dataset.attrs["start time"] = starttime
 			dataset.attrs["stop time"] = time.asctime()
 
+	# Measure
+	# TODO: Does mean_magn need to be a list?
+	mean_magn = []
+	phi_state = np.zeros((width,width,width,width))
+	run_scalar_MH(phi_state,lamb,kappa,delta,equil_sweeps * num_sites)
+	magnetizations = np.empty(measurements)
+	for i in range(measurements):
+		run_scalar_MH(phi_state,lamb,kappa,delta,measure_sweeps * num_sites)
+		magnetizations[i] = np.mean(phi_state)
+	mean, err = batch_estimate(np.abs(magnetizations),lambda x:np.mean(x),10)
+	mean_magn.append([mean,err])
+
 if __name__ == "__main__":
 	main()