R parallel appears to be only spawning 2 processes in mclapply()

ArtPoon / kamphir

Phylogenetic inference using a tree-shape kernel in an Approximate Bayesian Computation framework

BSD 3-Clause "New" or "Revised" License

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R parallel appears to be only spawning 2 processes in mclapply() #10

Closed ArtPoon closed 9 years ago

ArtPoon commented 9 years ago

Based on monitoring top output. detectCores() returns the correct number (12). Also tried calling Rscript from Python to see if this affected number of cores.

ArtPoon commented 9 years ago

You have to set mc.cores in mclapply(). The line:

mc <- getOption('mc.cores', n.cores)

has no effect.