STATE(1)

NAME
state - Report status of LAM processes.

SYNTAX
state [-ghklt] <nodes> [<processes>]

OPTIONS

-g  Print information on system and application processes.

-h  Print the command help menu.

-k  Only obtain kernel information on local kernel processes.

-l  Print supplementary information.

-t  Print information on system processes only.

DESCRIPTION
Most MPI users will probably not need to use the bfctl command; see mpimsg(1) and mpitask(1).

If no process selection is given on the command line, one line of status will be printed for every process on each specified node.

In default mode, information is organized under the following headings:

NODE
    the nodeid on which the process is running

INDEX
    the LAM process index

PID the process identifier from the underlying operating system

KPRI
    the LAM kernel priority

KSTATE
    the LAM kernel execution status:

    R   running - unencumbered by LAM

    BR  blocked receiving - The blocked message event and type are also displayed.

    BS  blocked sending - The blocked message event and type are also displayed.

    F   no longer a LAM process

PROGRAM
    the program filename

With the -l option, state prints signal information instead of execution status.

SIGS
    all pending but undelivered LAM signals

Some event/type combinations are used by the system to implement client/server requests or to implement other message passing libraries. Where possible, state replaces these numbers with the name of the function that caused the current execution state. In general, the information provided by state is low-level and geared toward LAM system programmers. MPI programmers are expected to use mpitask(1) to monitor the state of MPI processes.

  Kernel Processes
A process must call kenter(2) or be created by loadgo(1) in order to be directly visible to state. In other cases, limited monitoring is possible in one of two ways. If a process identifier is given, the kernel on each specified node will be consulted for kernel information (kstate(2)). On the local node (use node specifier h) a process can be watched without the assistance of the process management daemon by giving the process identifier and the -k option.

EXAMPLES

state n0-7
    Display the status of all application processes on nodes 0 through 7.

state n7 i4
    Display the status of LAM process index 4 on node 7.

DIAGNOSTICS
If no processes are found, only the title line is displayed.

SEE ALSO
loadgo(1), mpimsg(1), mpitask(1), doom(1), bfstate(1)