cannot make cluster on remote host in R studio

RStudio IDE
1

I'm unable to create a cluster on a remote machine in R studio, works fine in R terminal
Running Ubuntu Linux, R version 3.6.2

this works in terminal
'''r

library(parallel)
cl <- makePSOCKcluster(c("localhost","localhost"),user="mark")
cl
socket cluster with 2 nodes on host ‘localhost’
stopCluster(cl)
cl <- makePSOCKcluster(c("localhost","laptop"),user="mark")
mark@laptop's password:
cl
socket cluster with 2 nodes on hosts ‘localhost’, ‘laptop’
'''

same code in R studio hangs:
'''r

library(parallel)
cl <- makePSOCKcluster(c("localhost","localhost"),user="mark")
cl
socket cluster with 2 nodes on host ‘localhost’
stopCluster(cl)
cl <- makePSOCKcluster(c("localhost","laptop"),user="mark")
'''

any ideas? (also, is there a way to specify the password in code, I'm hoping to use maybe 100 nodes)

Mark

2

R uses ssh to connect to these nodes, so I suspect the simplest way forward would be to authenticate with SSH keys rather than requiring interactive password input.

3

yep, that worked on Linux. Having trouble getting keys copied in Windows 10, (a Windows problem, not an R studio problem, but if you have any suggestions ....)
thanks

4

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