The aim for the week was to solve the issue with the classification convolution mode that was not working and to getting the training working.
The reason why the fastest convolution was not working is due to SSE instruction set not being enabled. Which is an extended instruction set created by Intel to improve performance for processing in games and graphics., To resolved this ended up changing one of the Matlab compile scripts to pass a flag to the compiler to enable it.
When the convolution was working the demo script provided was adapted to test the speed of the classifier which yielded the following results on a Intel(R) Core(TM)2 CPU 6300 @ 1.86 GHz with 4 GB of Ram, With Ubuntu 12.04:
Multithreaded convolution using SSE
car_final: 10.95 seconds.
inriaperson_final: 4.99 seconds.
bicycle_final: 8.27 seconds.
Average: 8.03 seconds
Multithreaded convolution using blas
car_final: 14.36 seconds
inriaperson_final: 6.13 seconds
bicycle_final: 11.13 seconds
Average: 10.54 seconds
Mulththreaded convolution without blas
car_final: 26.55 seconds
inriaperson_final: 9.79 seconds
bicycle_final: 20.70 seconds
Average: 19.01 seconds
Convolution using blas
car_final: 19.70 seconds
inriaperson_final: 7.95 seconds
bicycle_final: 5.62 seconds
Average: 11.09 seconds
Basic convolution, very compatible
car_final: 42.89 seconds.
inriaperson_final: 15.44 seconds.
bicycle_final: 3.37 seconds
Average: 20.56 seconds
The results are far from fast however this is not necessary important as the algorithm been used was never designed to run anyway near real-time.
Getting the training part of the system to work was another story and though my understanding of it has gowned, I have yet to manage to get it actually working. I think as this point I am just having a problem with the paths to the files I wish to train.
