Technical data

4
TPU XIO Board Introduction
Software Installation and Configuration
If your system is currently up and running, save yourself time and extra system reboots
by installing and configuring the correct version of IRIX before the board is installed.
Follow the instructions below:
1. Verify that IRIX 6.5.5 or greater is installed:
% versions eoe
I eoe date IRIX Execution Environment, version...
I eoe.sw.base date IRIX Base Execution Environment
If these IRIX software subsystems are not installed or if the displayed version is
earlier than 6.5.5, reinstall IRIX from the CD (or other source).
2. Verify that the IP27 PROM revision is 6.25 or greater:
% hinv -mv | grep IP27prom
IP27prom in Module 1/Slot n1: Revision 6.25
IP27prom in Module 1/Slot n2: Revision 6.25
3. Become superuser:
% su
Password:
4. Edit the /var/sysgen/system/irix.sm file to change the TPU lines from EXCLUDE to
INCLUDE:
*
* Tensor Processing Unit support.
*
INCLUDE: tpu
INCLUDE: tpuidbg
INCLUDE: tpusim
DRIVER_ADMIN: tpu_ XBAR_CREDITS=3
DRIVER_ADMIN: tpusim_ NDEV=144
5. Enable large page sizes and remove the page lock limit with the following
commands:
# systune percent_totalmem_16m_pages 20
# systune percent_totalmem_256k_pages 20
# systune maxlkmem 0
6. Run the autoconfig command to build a new operating system (kernel) that includes
the new driver:
# autoconfig