merged changes from sylvainforet@git.
Currently, unable to test for case 2000 sequence (training & testing set)
on c4k8.
System freezes and become totally unresponsive upon execution of the optimization process to find the SVM grid parameters.
This had been the case when >7 threads have been used.
Unsure if the problem is due to some bug/ codes in the script, or simply issues related to this (ubuntu MSi) machine.

Currently performing memtest on system.