XLED - An LED Server for LAM
XLED
is an X/Motif based client/server package that emulates hardware LEDs.
It is implemented on top of LAM, a cluster computing environment for UNIX.
It provides a low cost alternative for sexy blinking LEDs demos (popular
with supervisors and managers!) and quick-n-dirty debugging.
The XLED client library can be used by MPI applications
under LAM, from C and Fortran.
It provides a simple interface to turn on/off selected LEDs and inquire
about their current state.
The XLED server can be run on any node in the LAM multicomputer.
The LED calls locate and direct their requests to the proper
destination.
The XLED API
- lam_ledinit( ) handles initialization.
- lam_ledclr( ) clears the LEDs.
- lam_ledon( ) turns on an LED.
- lam_ledoff( ) turns off an LED.
- lam_ledisset( ) checks the state of an LED.
- lam_ledgetnum( ) gets the number of LEDs.
How to Get XLED
XLED was developed at the Ohio Supercomputer Center and is
freely available under a GNU license from the
LAM ftp site.
LAM / MPI Parallel Computing
/ Ohio Supercomputer Center / lam@tbag.osc.edu