The Sp Switch Board - IBM RS/6000 SP Problem Determination Manual

This soft copy for use by IBM employees only.
For example, Node 14 (N14) is connected to the switch board at J4 on the High
Performance Switch, but on the SP Switch it is connected at J34. Look at
Figure 45 on page 95 and compare it with Figure 41 on page 88 for the High
Performance Switch to discover how it is cabled differently.
Figure 45. The SP Switch Board
J3 to J34
V1 to V32
SW0 to SW7
U1 to U8
N1 to N16
E1 to E16
4.3 Switch Topology and Clock Subsystem
The following section discusses switch topology and clock subsystem
considerations.
4.3.1 Switch Topology Files
The switch topology file is critical to the successful working of the switch. The
switch daemons (which will be discussed in some detail later) use this topology
file as the basis for creating the routing tables which get propagated to every
node on the switch network. The topology files are shipped as standard with the
POWERparallel System Support Programs software, and during the installation
Bulkhead jacks for data cables
Data connectors on the switch board (silk screen)
Logical identification of switch chips
•
In output files, add 10,000 to the logical number.
•
The frame number is used to build logical number. Multiply
frame number by 10.
Master switch chip silkscreen on the board
Node ports (physical numbering)
Switch to switch ports
95
Chapter 4. The Switch