Set CPU and/or Elapsed Time Limits (original) (raw)
| setTimeLimit {base} | R Documentation |
|---|
Description
Functions to set CPU and/or elapsed time limits for top-level computations or the current session.
Usage
setTimeLimit(cpu = Inf, elapsed = Inf, transient = FALSE)
setSessionTimeLimit(cpu = Inf, elapsed = Inf)
Arguments
| cpu, elapsed | double (of length one). Set a limit on the total or elapsed CPU time in seconds, respectively. |
|---|---|
| transient | logical. If TRUE, the limits apply only to the rest of the current computation. |
Details
setTimeLimit sets limits which apply to each top-level computation, that is a command line (including any continuation lines) entered at the console or from a file. If it is called from within a computation the limits apply to the rest of the computation and (unless transient = TRUE) to subsequent top-level computations.
setSessionTimeLimit sets limits for the rest of the session. Once a session limit is reached it is reset to Inf.
Setting any limit has a small overhead – well under 1% on the systems measured.
Time limits are checked whenever a user interrupt could occur. This will happen frequently in R code and during [Sys.sleep](../../base/help/Sys.sleep.html), but only at points in compiled C and Fortran code identified by the code author.
‘Total CPU time’ includes that used by child processes where the latter is reported.
[Package _base_ version 4.6.0 Index]