FCTL(1) LAM COMMANDS FCTL(1)
fctl - Control a LAM remote file daemon.
fctl [-hS] [-s <descno>] <nodes> [<newdir>]
-h Print the command help menu.
-S Sweep out all but the standard filed descriptors.
-s <descno> Sweep out the given filed descriptor.
<nodes> Direct command to filed on these nodes.
<newdir> Change to new working directory.
Most MPI users will probably not need to use the fctl command; see lam-
clean(1). This command is only installed if LAM/MPI was configured
with the --with-trillium switch.
The fctl command controls important file daemon (filed) attributes and
support features. With no options, fctl reports the current working
directory that is prepended to all partial pathnames on rfopen(2). A
file name on the command line becomes the new working directory.
Another important role of fctl is cleaning the debris that can form in
filed in certain application crashes or bugs. Any file descriptor can
be swept clean by indicating its handle (number) with the -c option.
If desired, all descriptors, save stdio (0, 1, 2), can be cleaned and
filed effectively reset with the -S option.
fctl h data/set1
Change current working directory as indicated.
fctl h -s 4
Close and remove filed descriptor 4.
LAM 7.1.1 September, 2004 FCTL(1)
Man(1) output converted with