Number of threads to use for task scheduling (call
defaultNumThreads to determine the the default
value used for "auto").
stackSize
Stack size (in bytes) to use for worker threads. The
default used for "auto" is 2MB on 32-bit systems and
4MB on 64-bit systems (note that this parameter has
no effect on Windows).
Value
The defaultNumThreads returns the default number of threads
that are used by RcppParallel if another value isn't specified using
setThreadOptions.
Details
RcppParallel is automatically initialized with the default number
of threads and thread stack size when it loads. You can call
setThreadOptions at any time to change the defaults.