if {[catch {
		::JobServer::listFiles
	    } msg]} {
		puts "Cannot load JobServer::listFiles -- $msg"
		proc ::JobServer::listFiles {} {
		    puts "\nFiles:"
		    foreach file [lsort [glob -nocomplain *]] {
			if {[catch {file mtime $file} T]} {
			    set T "--- -- --:--:--"
			} else {
			    set T [clock format $T -format "%b %d %T"]
			}
			puts [format "%15d %s %s" [file size $file] $T $file]
		    }
		    puts ""
		}
		::JobServer::listFiles
	    }

	    if {[catch {
		puts "Starting LAMMPS at [clock format [clock seconds]]"
		package require LAMMPS 3.0

		::LAMMPS::execute -out LAMMPS.out

		puts "Finished LAMMPS [clock format [clock seconds]]"
		::JobServer::listFiles
	    } msg]} {
		puts "Error executing LAMMPS [clock format [clock seconds]]: $msg\n\n$::errorInfo"
		global errorInfo
		puts ""
		puts $errorInfo
		::JobServer::listFiles
		return
	    }