Laplace+grid approximation  IA-grid: finding the mode
 IA-grid: computing Hessian using multiplication
 IA-grid: evaluating density in a grid
 IA-grid: evaluated density at 30 points
Elapsed time 2s
EP+grid approximation       IA-grid: finding the mode
 IA-grid: computing Hessian using multiplication
 IA-grid: evaluating density in a grid
 IA-grid: evaluated density at 30 points
    Elapsed time 1.03 seconds
 IA-grid: Total elapsed time 1.23 seconds
Elapsed time 5s
MCMC approximation         Elapsed time 194s

 gp hyperparameters: 
 
    4.3811    2.3256

Demo completed in 3.367 minutes
