tping(1) [linux man page]

TPING(1)                                                           LAM COMMANDS                                                           TPING(1)

NAME

       tping - Send echo messages to LAM nodes.

SYNOPSIS

       tping [-hv] [-c count] [-d delay] [-l length] nodes

OPTIONS

       -h            Print the command help menu.

       -v            Turn OFF verbose mode.

       -c count      Send count messages.

       -d delay      Delay delay seconds between each message.

       -l length     Each message is length bytes long.

DESCRIPTION

       The  tping  command  sends  messages  to,  and  collects replies from, a list of nodes, via the LAM echo server.  It is similar to the UNIX
       ping(8) command, and is used as a quick diagnosis of the LAM network.

       Unless options are specified, tping sends a 1 byte message an infinite number of times, displaying the roundtrip time of each message as it
       completes,  with  a delay of 1 second between roundtrips.  After the loop is broken (with keyboard interrupt, eg: ^C), tping prints statis-
       tics about all roundtrip messages.

EXAMPLES

       tping h
           Echo messages to the local node.

       tping -v n7 -l 1000 -c 10
           Echo 1000 byte messages to node 7.  Stay silent while working.  Stop after 10 roundtrips and report statistics.

BUGS

       There is no built-in timeout and tping will wait forever to receive an echo.  If no echo is received, due to a dead  link  or  node,  tping
       hangs.   Stop  the  process  with  a  keyboard suspend signal (eg: ^Z) and terminate LAM with lamhalt(1) or lamwipe(1) (although the use of
       lamwipe(1) is deprecated).

SEE ALSO

       lamhalt(1), lamwipe(1)

LAM 7.1.4                                                           July, 2007                                                            TPING(1)

INTROU(1)							   LAM COMMANDS 							 INTROU(1)

NAME

       introu - introduction to LAM user interface commands

LIST OF COMMANDS

       Name	      Appears	     Description
		      on Page

       bfctl	      bfctl.1	     Control message buffers (optional).
       bfstate	      bfstate.1      Get message buffer status (optional).
       doom	      doom.1	     Deliver a signal (optional).
       fctl	      fctl.1	     Control remote file access (optional).
       fstate	      fstate.1	     Get remote file status (optional).
       hboot	      hboot.1	     Start LAM on a local node.
       mpicc	      mpicc.1	     Compile LAM C programs.
       mpiCC	      mpicc.1	     Compile LAM C++ programs.
       mpif77	      mpif77.1	     Compile LAM F77 programs.
       lamboot	      lamboot.1      Start LAM.
       lamclean       lamclean.1     Clean all nodes.
       lamexec	      lamexec.1      Run non-MPI programs.
       lamgrow	      lamgrow.1      Add a node.
       lamhalt	      lamhalt.1      Terminate LAM.
       lamshrink      lamshrink.1    Remove a node.
       lamtrace       lamtrace.1     Unload trace data.
       loadgo	      loadgo.1	     Execute program (optional).
       mpimsg	      mpimsg.1	     Display MPI buffered messages.
       mpirun	      mpirun.1	     Run an MPI application.
       mpitask	      mpitask.1      Display MPI processes.
       recon	      recon.1	     Verify LAM setup.
       state	      state.1	     Get process status (optional).
       sweep	      bfctl.1	     Clean out message buffers (optional).
       tkill	      tkill.1	     Terminate local node LAM session.
       tping	      tping.1	     Echo messages to a node.
       lamwipe	      lamwipe.1      Terminate LAM (deprecated; use lamhalt).

   Node Specification
       Target  nodes  are  given  on the command line.	Nodes are generically identified as nlist, where list can be a single node identifier or a
       list of node identifiers.  For example:

	      n1
	      n1,3,5-10

       Additionally, clist can be used to list specific CPUs on a given machine (lamboot(1) is used to specify how many CPUs LAM may use  on  each
       node).

       Node/CPU identifiers are established in the boot schema (see bhost(5)), and can be written in decimal or hexadecimal notation.  In addition
       to explicit node identification, LAM has special mnemonics that refer to special nodes or a group of nodes.

       h       the local node where the command is typed (as in "here")

       o       the origin node where LAM was started with lamboot(1)

       N       all nodes

       C       all CPUs

   Process Specification
       LAM processes can be specified in two ways: by process identifier from the underlying operating system or by LAM process index.	 PIDs  are
       written as plist, where list can be a single PID or a list of PIDs.  Process indices are written as ilist, where list can be a single index
       or a list of indices.

LAM 7.1.4							    July, 2007								 INTROU(1)