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Parallelizing R across multiple nodes

Hi,

 

I've been able to deploy some R functions using the parallel package and mclapply to take advantage of multiple cores within a single node. 

 

Has anyone deployed a R function through UDX that takes advantage of CPU cores across multiple nodes?  I was looking at the snow package to do this and was hoping from tips or at least some existence proof that someone had pulled this off.

 

Thanks, Tim 

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