Hardware Reference
In-Depth Information
FIGURE 3.1 (See color insert): The Blue Waters computational analysis sub-
system. [Image courtesy of Paula Popowski, NCSA.]
TABLE 3.1: Data payload bi-directional bandwidth in X;Y;Z dimensions.
X = 23, Y = 24, and
Z = 24
X dimension Y dimension Z dimension
Dimension size
24
24
24
Bits
per
direction
per
24
12
24
link
Bi-directional Band-
width per link @ 3.125
Ghz
18.75 GB/s
9.375 GB/s
18.75 GB/s
Number of links per di-
mension (includes torus
wrap-around links)
1152
1152
1152
Total
Peak
Bi-section
21.6 TB/s
10.35 TB/s
20.7 TB/s
Bandwidth
per
dimen-
sion
Average
Bi-section
17.55 TB/s
Bandwidth
Minimum
Bi-section
10.32 TB/s (Y direction)
Bandwidth
