Registers a finalizer to a cluster such that the cluster will be stopped when garbage collected
autoStopCluster(cl, debug = FALSE)A cluster object created by for instance makeClusterPSOCK()
or parallel::makeCluster().
If TRUE, then debug messages are produced when the cluster is garbage collected.
The cluster object with attribute gcMe set.
The cluster is stopped using
stopCluster(cl).
An alternative to explicitly call this function on an existing
cluster object, is to create the cluster object using
makeClusterPSOCK() with argument autoStop = TRUE.
cl <- makeClusterPSOCK(2, dryrun = TRUE)
#> ----------------------------------------------------------------------
#> Manually, start worker #1 on local machine ‘localhost’ with:
#>
#> '/home/henrik/shared/software/CBI/_ubuntu22_04/R-4.4.1-gcc11/lib/R/bin/Rscript' --default-packages=datasets,utils,grDevices,graphics,stats,methods -e 'options(socketOptions = "no-delay")' -e 'workRSOCK <- tryCatch(parallel:::.workRSOCK, error=function(e) parallel:::.slaveRSOCK); workRSOCK()' MASTER=localhost PORT=11166 OUT=/dev/null TIMEOUT=2592000 XDR=FALSE SETUPTIMEOUT=120 SETUPSTRATEGY=sequential
#>
#> ----------------------------------------------------------------------
#> Manually, start worker #2 on local machine ‘localhost’ with:
#>
#> '/home/henrik/shared/software/CBI/_ubuntu22_04/R-4.4.1-gcc11/lib/R/bin/Rscript' --default-packages=datasets,utils,grDevices,graphics,stats,methods -e 'options(socketOptions = "no-delay")' -e 'workRSOCK <- tryCatch(parallel:::.workRSOCK, error=function(e) parallel:::.slaveRSOCK); workRSOCK()' MASTER=localhost PORT=11166 OUT=/dev/null TIMEOUT=2592000 XDR=FALSE SETUPTIMEOUT=120 SETUPSTRATEGY=sequential
#>
cl <- autoStopCluster(cl)
print(cl)
#> Socket cluster with 2 nodes where 2 nodes are on host ‘NA’ (R version and platform not queried). This cluster is registered to be automatically stopped by the garbage collector
rm(list = "cl")
gc()
#> used (Mb) gc trigger (Mb) max used (Mb)
#> Ncells 818390 43.8 1511960 80.8 1511960 80.8
#> Vcells 1491489 11.4 8388608 64.0 2107900 16.1