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Full Discussion: Smt
Operating Systems AIX Smt Post 91363 by bakunin on Thursday 1st of December 2005 11:32:23 AM
Old 12-01-2005
I suppose you mean "Symmetrical Multiprocessing" (SMP). Multithreading is automatically enabled if you use the correct libraries for your softwre development (libpthreads.so).

The multiprocessor kernel resides in a package called "bos.mp", whereas the uniprocessor kernel resides in "bos.up". One can have installed both and decide which one to use.

First check what is installed on the machine. The command and its output should look similar to the following:

Code:
# lslpp -l bos.mp
  Fileset                      Level  State      Description         
  ----------------------------------------------------------------------------
Path: /usr/lib/objrepos
  bos.mp                    5.2.0.76  COMMITTED  Base Operating System
                                                 Multiprocessor Runtime

Path: /etc/objrepos
  bos.mp                     5.2.0.0  COMMITTED  Base Operating System
                                                 Multiprocessor Runtime

Then check which kernel gets booted on system startup. The kernel to get booted is "/unix", which is a link to the kernel file:

Code:
# ls -l /unix
lrwxrwxrwx   1 root     system           21 Oct 11 06:07 /unix -> /usr/lib/boot/unix_64

You can use the bosboot-command (as root) to alter the kernel to boot, the boot image, the device from which to boot, etc.

PLEASE READ CAREFULLY the manpage of bosboot prior to usage - you can easily render your machine useless and ready for a reinstallation by (mis-)using this command.

bakunin
 

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BOS_GETDATE(8)						       AFS Command Reference						    BOS_GETDATE(8)

NAME
bos_getdate - Displays the time stamps on an AFS binary file SYNOPSIS
bos getdate -server <machine name> -file <files to check>+ [-dir <destination dir>] [-cell <cell name>] [-noauth] [-localauth] [-help] bos getd -s <machine name> -f <files to check>+ [-d <destination dir>] [-c <cell name>] [-n] [-l] [-h] DESCRIPTION
The bos getdate command displays the time stamps on the current version," .BAK" version (if any) and ".OLD" version (if any) of each binary file named by the -file argument. (The BOS Server automatically creates ".BAK" and ".OLD" versions when new binaries are installed with the bos install command.) The files must reside in the /usr/lib/openafs directory on the server machine named by the -server argument unless the -dir argument indicates an alternate directory. To revert to the ".BAK" version of a binary, use the bos uninstall command. To remove obsolete binary files from the /usr/lib/openafs directory, use the bos prune command. OPTIONS
-server <machine name> Indicates the server machine from which to list binary files. Identify the machine by IP address or its host name (either fully- qualified or abbreviated unambiguously). For details, see bos(8). All server machines of the same AFS system type show the same timestamps if the binaries were installed properly on the binary distribution machine for this machine's system type, and if all other machines of that type are running the appropriate "upclientbin" process. -file <files to check>+ Names each binary file to list. -dir <destination dir> Specifies the complete pathname of the local disk directory containing each file named by the -file argument. It is necessary only if the files are not in the /usr/lib/openafs directory. -cell <cell name> Names the cell in which to run the command. Do not combine this argument with the -localauth flag. For more details, see bos(8). -noauth Assigns the unprivileged identity "anonymous" to the issuer. Do not combine this flag with the -localauth flag. For more details, see bos(8). -localauth Constructs a server ticket using a key from the local /etc/openafs/server/KeyFile file. The bos command interpreter presents the ticket to the BOS Server during mutual authentication. Do not combine this flag with the -cell or -noauth options. For more details, see bos(8). -help Prints the online help for this command. All other valid options are ignored. OUTPUT
For each file specified with the -file argument, the output displays the time stamp on the current (unmarked), ".BAK", and ".OLD" version. The output explicitly reports that a version does not exist, rather than simply omitting it. EXAMPLES
The following command examines the time stamps on the files with basename "kaserver" on the machine "fs2.abc.com": % bos getdate -server fs2.abc.com -file kaserver File /usr/lib/openafs/kaserver dated Mon Jan 4 10:00:36 1999. .BAK file dated Wed Dec 9 18:55:04 1998, no .OLD file. PRIVILEGE REQUIRED
None SEE ALSO
KeyFile(5), bos(8), bos_install(8), bos_prune(8), bos_uninstall(8) COPYRIGHT
IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved. This documentation is covered by the IBM Public License Version 1.0. It was converted from HTML to POD by software written by Chas Williams and Russ Allbery, based on work by Alf Wachsmann and Elizabeth Cassell. OpenAFS 2012-03-26 BOS_GETDATE(8)
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