Hmm, I was afraid the I would have to install globus
on all of the nodes. I wanted to avoid doing this,
because configuring globus is a bit troublesome.
Attempting to do this correctly across all my nodes is
a headache waiting to happen. I did find another
solution that seems to work, although it's not very
elegant.
This is what I did:
"lamboot -v -ssi boot globus machines.globus" one of
the frontend nodes. This creates the globus
connection between my two frontends. Then I ssh'ed
into each frontend, and did a:
"lamgrow -v compute-0-X" X=Number of the node 0-3
doing this on both frontends, seems to create a lam
universe fine. Obviously the above command can be put
into a script. Anyway, this seems to work just fine,
but I am still testing to see if any errors/problems
arise. Although, I would like a better way of doing
it. I am open to any suggestions. Perhaps an elegant
solution exists.
If anyone has any ideas, please let me know.
Thanks,
-RD
--- Vishal Sahay <vsahay_at_[hidden]> wrote:
> Currenly LAM's support for Globus is only on
> machines which have the
> Globus gatekeeper running. It looks like your front
> end machines are the
> only two that have the gatekeepers and then they
> kind of schedule jobs to
> the internal nodes. LAM currently does not support
> such configurations.
> You need to have Globus installed and the gatekeeper
> running on each
> machine you wish to run LAM jobs on.
>
> -Vishal
>
>
> On Fri, 10 Sep 2004, redirecting decoy wrote:
>
> # Hello everyone,
> #
> # I am using lam-mpi 7.0.6 and the Globus Tool Kit
> 3.2.1
> # on 2 different clusters with 4 nodes each. There
> is a
> # total of 10 machines, 2 Frontends and 8 Nodes.
> These
> # are ROCKS based. I have been able to get the Lam
> # universe to boot using globus. However, I only
> have
> # the 2 frontends(grids) in the machine file. My
> # question is, how do I get Lam to use all 10
> machines,
> # both frontends with the nodes behind them.
> #
> # Here is some more information on my setup:
> # Each frontend has 2 nics, with the compute nodes
> on 10
> # dots. Globus is installed on the 2 Frontends, and
> lam
> # is installed on all of the machines.
> #
> # Frontend0.public: 192.168.10.16
> # compute-0-0: 10.255.255.254
> # compute-0-1: 10.255.255.253
> # compute-0-2: 10.255.255.252
> # compute-0-3: 10.255.255.251
> #
> # Frontend1.public: 192.168.10.17
> # compute-0-0: 10.1.2.254
> # compute-0-1: 10.1.2.253
> # compute-0-2: 10.1.2.252
> # compute-0-3: 10.1.2.251
> #
> # I created a file called machines.globus:
> # machines.globus:
> # Frontend0.public prefix=/usr/local/lam
> # Frontend1.public prefix=/usr/local/lam
> #
> #
> # And used the following command to boot.:
> # lamboot -v -ssi boot globus machines.globus
> #
> # So this works fine, but how do I include the rest
> of
> # the nodes ? Any help will be greatly appreciated.
> #
> # Thanks in advance,
> #
> # -RD
> #
> #
> #
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