Computational steering

	Consider a simulator written in F77, C or C++
	Aim: write the administering code and run-time visualization in Python
	Use a Python interface to Gnuplot
	Use NumPy arrays in Python
	F77/C and NumPy arrays share the same data
	Result: steer simulations through scripts do low-level numerics efficiently in C/F77 send simulation data to plotting a program The best of all worlds?