lamexec [options] [<app>] [[<nodes>] <prog> [<args>]]

----------------------------------------------------------------------------- Synopsis: lamexec [options] <app> lamexec [options] <where> <program> [<prog args>] Description: Start a non-MPI job on LAM nodes. Notes: [options] Zero or more of the options listed below <app> LAM/MPI appschema <where> List of LAM nodes and/or CPUs (examples below) <program> Program to execute <prog args> Optional list of command line arguments to <program> Options: -c <num> Run <num> copies of <program> (same as -np) -D Change current working directory of new processes to the directory where the executable resides -f Do not open stdio descriptors -h Print this help message -pty Use pty if stdout is a tty -np <num> Run <num> copies of <program> (same as -c) -npty Do not use a pty for stdout -s <nodeid> Load <program> from node <nodeid> -v Be verbose -w / -nw Wait / don't wait for job to complete -x <envlist> Export environment vars in <envlist> Nodes: n<list>, e.g., n0-3,5 CPUS: c<list>, e.g., c0-3,5 Extras: h (local node), o (origin node), N (all nodes), C (all CPUs) Examples: lamexec n0-7 prog1 Executes "prog1" on nodes 0 through 7. lamexec -x FOO=bar,DISPLAY N prog2 Executes "prog2" on all nodes. In the environment of each process, set FOO to the value "bar", and set DISPLAY to the current value. lamexec n0 N prog3 Run "prog3" on node 0, *and* all nodes. This executes *2* copies on n0. lamexec C prog4 arg1 arg2 Run "prog4" on each available CPU with command line arguments of "arg1" and "arg2". If each node has a CPU count of 1, the "C" is equivalent to "N". If at least one node has a CPU count greater than 1, LAM will run multiple copies on that node. For example, if node 0 has a CPU count of 4 and node 1 has a CPU count of 2, "prog4" will have MPI_COMM_WORLD ranks 0 through 3 on n0, and ranks 4 and 5 on n1. lamexec c0 C prog5 Similar to the "prog3" example above, this runs "prog5" on CPU 0 *and* on each available CPU. This executes *2* copies on the node where CPU 0 is (i.e., n0). This is probably not a useful use of the "C" notation; it is only shown here for an example. Defaults: -w -pty -----------------------------------------------------------------------------