R: Request a core for multicore processing

requestCore {future} | R Documentation

## Request a core for multicore processing

### Description

If no cores are available, the current process blocks until a core is available.

### Usage

    requestCore(await, workers = availableCores(),
      timeout = getOption("future.wait.timeout", 30 * 24 * 60 * 60),
      delta = getOption("future.wait.interval", 0.2),
      alpha = getOption("future.wait.alpha", 1.01))

### Arguments

`await` | A function used to try to "collect" finished multicore subprocesses.
`workers` | Total number of workers available.
`timeout` | Maximum waiting time (in seconds) allowed before a timeout error is generated.
`delta` | Then base interval (in seconds) to wait between each try.
`alpha` | A multiplicative factor used to increase the wait interval after each try.

### Value

Invisible TRUE. If no cores are available after extensive waiting, then a timeout error is thrown.

[Package future version 1.8.0 Index]