BiocParallel (version 1.0.3)

bplapply: Parallel lapply-like functionality

Description

bplapply applies FUN to each element of X. Any type of object X is allowed, provided length, [, and [[ methods are available. The return value is a list of length equal to X, as with lapply.

Usage

bplapply(X, FUN, ..., BPRESUME = getOption("BiocParallel.BPRESUME", FALSE), BPPARAM=bpparam())
"bplapply"(X, FUN, ..., BPRESUME = getOption("BiocParallel.BPRESUME", FALSE), BPPARAM=bpparam())
"bplapply"(X, FUN, ..., BPRESUME = getOption("BiocParallel.BPRESUME", FALSE), BPPARAM=bpparam())
"bplapply"(X, FUN, ..., BPRESUME = getOption("BiocParallel.BPRESUME", FALSE), BPPARAM=bpparam())

Arguments

X

Any object for which methods length, [, and [[ are implemented.

FUN

The function to be applied to each element of X.

...

Additional arguments for FUN, as in lapply

BPRESUME

Flag to determine if a previous partially successful run should be resumed. See bpresume for details.

BPPARAM

An optional BiocParallelParam instance determining the parallel back-end to be used during evaluation, or a list of BiocParallelParam instances, to be applied in sequence for nested calls to bplapply.

Value

lapply.

Details

See showMethods{bplapply} for additional methods, e.g., method?bplapply("MulticoreParam").

See Also

bpvec for parallel, vectorized calculations.

BiocParallelParam for possible values of BPPARAM.

Examples

showMethods("bplapply")

## ten tasks (1:10) so ten calls to FUN default registered parallel
## back-end. Compare with bpvec.
system.time(result <- bplapply(1:10, function(v) {
    message("working") ## 10 tasks
    sqrt(v)
}))
result