STATE(1) LAM COMMANDS STATE(1)NAMEstate - Report status of LAM processes.
SYNTAXstate [-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 state command; see
mpimsg(1) and mpitask(1). This command is only installed if LAM/MPI
was configured with the --with-trillium switch.
If no process selection is given on the command line, one line of sta‐
tus 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 execu‐
tion 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 func‐
tion that caused the current execution state. In general, the informa‐
tion provided by state is low-level and geared toward LAM system pro‐
grammers. 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 pos‐
sible 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 giv‐
ing the process identifier and the -k option.
EXAMPLESstate 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 ALSOloadgo(1), mpimsg(1), mpitask(1), doom(1), bfstate(1)LAM 7.1.2 March, 2006 STATE(1)
