Graphcore IPU-POD128, Руководство по сборке и тестированию, Страница: 9 / 113

IPU-POD128 build and test guide
Front side LEDs
The front side LEDs indicate the status of the IPU-M2000. Fig. 2.4 and Table 2.1 show the colour scheme and
indications.
Fig. 2.4: Front side LEDs
Table 2.1: Front LED indicators
LED Colour Function
1 Green “OK”, ”Normal”, ”Satisfactory operation”, ”Active”, or “In service”
10 Hz: BMC running on flash (instruction fetch from flash)
2 Hz: BMC running on DRAM without interrupt enabled (instruction fetch from DRAM)
0.5 Hz: BMC running on DRAM with interrupt enabled (system in standby mode)
0.1 Hz: BMC abnormal mode, some interrupts are not serviced for over 2 seconds
Steady green light: System operational
2 Amber “Attention” or “Service action required”
3 White “Here I am”,”This is the item being sought” or “Unit ID”
2.3 Server
The default configuration of each IPU-POD
64
uses a single PowerEdge R6525 server but up to four servers can be
used. Contact Graphcore sales for details of other supported server types. This document describes the default
server (PowerEdge R6525) installation only. Other servers may have different installation requirements.
The default server configuration is described in
Section 4.1, Server configuration .
Since there is at least one server per IPU-POD
64
there will be a minimum of two servers in the IPU-POD
128
.
Version: latest (2021-11-25) 5