UseParallel parameter on elmann train makes only 1 worker "work"

Hi,

I'm training a ANN (Elmann) with the param 'useParallel'. However, out of 4 workers, 3 are unused. The training as it is takes too much time to finish. My Matlab version is 2015a.

Computing Resources: Parallel Workers: Worker 1 on PA-PC, MEX on PCWIN64 Worker 2 on PA-PC, Unused Worker 3 on PA-PC, Unused Worker 4 on PA-PC, Unused

Can anyone help me? Thanks in advance.

[orlem lima dos santos]

I'm having the problem i'm using feedforwardnet I'm use with others nets(NARX, etc..) and works ... This seems to be a bug