Parallelization in R: how to “source” on every node?

Question

I have created parallel workers (all running on the same machine) using:

MyCluster = makeCluster(8)

How can I make every of these 8 nodes sourc

Answer 1

If you use a command to source a local file, ensure the file is there.

Else place the file on a network share or NFS, and source the absolute path.

Better still, and standard answers, write a package and have that package installed on each node and then just call library() or require().