Table 3.

Training time (in seconds) for a single iteration under different implementations of MedGP

Implementation	Sequential	Multithreading
Computing Gram matrix	11	2
Inverting Gram matrix	13	3
Computing gradients	2497	97
Total per iteration	2521	102

The total number of observations across time for this patient is 6679. The sequential test used a single CPU, while the multithreading test used 35 CPUs—one thread per CPU