Explicit Parallelization

Instruct R code to execute operations with multiple R processes (possibly on different machines).

Multiple packages are available: parallel, snow/snowfall, foreach.^{R_hpc_packages}

Note Examples: multicore(mclapply), Rmpi(plapply). Figure source

Note maybe useful reference.pdf

• Rmpi

  R interface to MPI APIs.

  R is required at each compute node.

  Note Figure source with adaptation.