Test of Intel IPP libraries with OpenMP multithreading on machine with
two dual-core Intel Xeon 1.86Ghz 4Mb cache.

>> conv_test

1. Large grayscale 2D image - 2000x2000 pixels, kernel size = 5x5
Results --- Matlab (conv2): 0.67 secs. IPP: 0.09 secs. Speedup: 7.2

2. Large grayscale 2D image - 2000x2000 pixels, kernel size = 30x30
Results --- Matlab (fft2): 1.27 secs. IPP: 0.28 secs. Speedup: 4.5

3. Large color 2D image - 2000x2000x3 pixels, kernel size = 5x5
Results --- Matlab (conv2): 3.94 secs. IPP: 0.14 secs. Speedup: 27.2

4. Large color 2D image - 2000x2000x3 pixels, kernel size = 30x30
Results --- Matlab (fft2): 3.95 secs. IPP: 0.34 secs. Speedup: 11.7

5. Multiple tiny images - 32 x 32 x 10000, kernel size = 5x5
Results --- Matlab (conv2): 1.82 secs. IPP: 0.07 secs. Speedup: 25.8