Интерактивная система просмотра системных руководств (man-ов)
>> hboot (1) ( Linux man: Команды и прикладные программы пользовательского уровня )
hboot - Start LAM on the local node.
- hboot [-dhstvNV] [-c <conf>] [-I <inet_topo>] [-R <rtr_topo>]
Turn on debugging. This implies -v.
Print the command help menu.
Close stdio of child processes.
Terminate (tkill(1)) any previous LAM session before starting.
Go through the motions but do not actually take any action.
Format and print the process schema.
- -c <conf>
Use <conf> as the process schema.
- -I <inet_topo>
Set the $inet_topo variable in the process schema.
- -R <rtr_topo>
Set the $rtr_topo variable in the process schema.
Most MPI users will probably not need to use the
command; see lamboot
can be understood as a generic utility that starts multiple processes
on the local node, based on information in a process schema.
It is not restricted to starting LAM.
It is part of the startup sequence preformed by lamboot(1).
A process schema is a description of the processes which constitute
the operating system on a given node.
Naturally, the process schema used by
should be the one that describes LAM on a node.
The grammar of the process schema is described in conf(5).
When starting LAM on a remote machine using rsh(1), the open file
descriptors of the processes started by
must be closed in order for rsh(1) to exit.
This is done by using the
option can be used to force a tkill(1) on the machine before attempting
to start LAM.
This feature is used by lamboot(1) to handle the case where
a user might start a machine a second time without using wipe(1) to
terminate the previous LAM session.
The -I and -R options set their
respective variables to the given values.
The $inet_topo variable is typically used by the LAM Internet datalinks
that communicate with other nodes.
The $rtr_topo variable is passed to the LAM router that
handles network and topology information.
The variables can also be set in the process schema file (see conf(5))
but their values are overridden by the command line options.
When LAM is started, the kernel records all processes that
attach to it, including all the processes in the process schema.
It is the job of tkill(1)
to use this information to remove these processes from the node.
- hboot -v
Start LAM on the local node with the default process schema.
Report about every step as it is done.
- hboot -c myconfig
Boot the local node with the custom process schema,
default node process schema, where $LAMHOME is the installation directory
Default location for help file for diagnostic messages that
kill file for the LAM session on machine <hostname>, where
$USER is the userid.
will display, among others, the LAM
processes that have been started.
They may be killed one by one with kill
(1), or all at once by killing
the LAM kernel process with a HUP signal.
The preferred method is to use the LAM tool tkill
which should kill them all at once, and also remove the kill file.
New users should make liberal use of ps
to gain confidence that the system is working properly.
In a disaster, ps
(1) and kill
(1) are your only hope of recovery.
- SEE ALSO