Table 3.

Computational cost of fitting MRGP models in our convergence study: As the number of the training samples increases, the fitting cost increases as well.

	Model 1	Model 2	Model 3	Model 4	Model 5	Model 6
Training Size	$50$	$100$	$150$	$200$	$250$	$300$
Fitting Cost (seconds)	$1.83$	$3.68$	$5.89$	$8.00$	$14.00$	$16.89$