[Rsiena-help] More flexibility on using Clusters

[George Vega Yon]

Hey there,

Recently I've started working with the R package -parallel- using multiple
machines each one with its own address (host). The connections are not done
via port 22 and further depend on username. Here is an example of a PSOCK
cluster that I create

cl <- makePSOCKcluster(c('localhost', 'machine2.website.com' , '
machine3.website.com'), user='myusername', rshcmd='ssh -p PORTNUMBER')

Notice that I use rshcmd to specify the port number. This last point I cant
do in siena07. I know that I can change the default port in ssh and do
something like this

cl <- makePSOCKcluster(c('localhost', 'myusername at machine2.website.com' , '
myusername at machine3.website.com'))

which solves the issue, but having to change the default port number on my
computer isn't the nicest solution either. That said, I wanted to ask if
any of you guys have came up with a similar situation and how you solved it.

On the side I think it might be a good idea to include a -cl- argument on
-siena07- so that the user can build its own cluster and pass it directly
to siena07 (just like the boot command in the boot package does). Not a big
change to make but very useful. If only I could submit patches to RSiena
(like one does via Pull Requests on github) I would love to do so (any way
of doing that?).

Best,

George G. Vega Yon
+1 (626) 381 8171
http://www.its.caltech.edu/~gvegayon/
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