//rendering only the the left,bottom and front grid of total 8 3-D grids.
eiger> time ./tracer -model spheres100000
Sun Jan 27 18:24:18 MST 2002
Sun Jan 27 18:24:29 MST 2002
21.665u 1.347s 0:24.81 92.7% 0+0k 0+92io 1pf+0w


//rendering only the the left,bottom and front grid of total 8 3-D grids in the above sub-grid.
eiger> time ./tracer -model spheres100000
Sun Jan 27 18:25:38 MST 2002
Sun Jan 27 18:25:41 MST 2002
14.681u 1.340s 0:17.57 91.1% 0+0k 0+92io 1pf+0w


//3
eiger> time ./tracer -model spheres100000
Sun Jan 27 18:22:46 MST 2002
Sun Jan 27 18:22:47 MST 2002
13.625u 1.356s 0:16.22 92.2% 0+0k 0+92io 1pf+0w

//4
eiger> time ./tracer -model spheres100000
Sun Jan 27 18:26:51 MST 2002
Sun Jan 27 18:26:53 MST 2002
13.474u 1.307s 0:16.01 92.2% 0+0k 0+92io 1pf+0w


//5
eiger> time ./tracer -model spheres100000
Sun Jan 27 18:28:21 MST 2002
Sun Jan 27 18:28:22 MST 2002
13.513u 1.325s 0:16.09 92.1% 0+0k 0+92io 1pf+0w