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On Thursday, July 24, 2003, at 01:46 PM, Shahram Tehranian wrote:
> Basically I am wondering if it's possible to bring a remote deamon up
> separately once it has failed without doing a complete lamboot. I am
> developing a fault tolerant master-worker MPI-application. Currently
> my program can go on if the process or lam deamon fails on a worker
> node. Would it be possible to bring the remote deamon up separately
> and reconnect the worker process to the master without having to bring
> down the entire application.
This is possible, with some constraints. You have to start the new
daemon from a node with a daemon already running (using whatever boot
mechanism you used to start the original lam daemons). The command you
want is 'lamgrow' - see the lamgrow(1) manpage for more information.
Hope this helps,
Brian
- --
Brian Barrett
LAM/MPI developer and all around nice guy
Have a LAM/MPI day: http://www.lam-mpi.org/
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