Experimental feature in GraalVM

Parallel Execution

The FORK cluster and functions depending solely on forking (e.g., mcparallel) are not supported by the GraalVM R runtime at the moment. However, users can use the PSOCK cluster, which should work in the same way on the GraalVM R runtime as on GNU R.

Moreover, R can be used as a worker node in a PSOCK cluster computation driven from GNU R. See FastRCluster package for GNU R, which provides helper functions to create PSOCK cluster nodes that run the GraalVM R runtime.