From: Two spectral gradient projection methods for constrained equations and their linear convergence rate
Dimension
Method
Iter.
Fn
CPU
100
Algorithm 2.1
125
479
0.80
Algorithm 2.2
141
743
1.39
CGD
356
5,422
10.00
500
215
873
19.48
239
1,475
32.81
270
2,700
63.13