Hi I am trying to compare latest versions MCT exp() speed on two platforms (windows and linux).
Windows 7 Pro 64bit, Matlab R2017b, MCT 4.4.4 Build 12668
Ubuntu 16.04.3 64bit, Matlab R2017b, MCT 4.4.4 Build 12666
I found very strange results:
rng(1), n = 1000;
A = randn(n); A_mp = mp(A,34);
t = clock; X = exp(A); t_dp = etime(clock, t)
t = clock; X = exp(A_mp); t_mp = etime(clock, t)
Windows and Linux PC has different HW (Linux PC is significantly faster ... see double precision timing), but on linux is quadruple precision computing significantly slower.
Is there some bug in Linux release?
Customer support service by UserEcho