mirai 1.3.0

mirai 1.3.0

New Features

• daemons(dispatcher = "thread") implements threaded dispatcher (experimental), a faster and more efficient alternative to running dispatcher in a separate process.
• mirai_map() adds [.progress_cli] as an alternative progress indicator, using the cli package to show % complete and ETA.
• daemons() gains argument 'force' to control whether further calls reset previous settings for the same compute profile.
• daemon() gains argument 'asyncdial' to allow control of connection behaviour independently of what happens when the daemon exits.

Behavioural Changes

• For daemons():
  • Argument 'dispatcher' now takes the character options 'process', 'thread' and 'none'. Previous values of TRUE/FALSE continue to be accepted (thanks @hadley #157).
  • Return value is now always an integer - either the number of daemons set if using dispatcher, or the number of daemons launched locally (zero if using a remote launcher).
  • Invalid type of ... arguments are now dropped instead of throwing an error. This allows ... containing unused arguments to be more easily passed from other functions.
• For mirai_map():
  • Now only performs multiple map over the rows of matrices and dataframes (thanks @andrewGhazi, #147).
  • Combining collection options is now easier, in the fashion of: x[.stop, .progress].
  • Collection options now work even if mirai is not on the search path e.g. mirai::mirai_map(1:4, Sys.sleep)[.progress].
• dispatcher() drops argument 'asyncdial' as it is rarely useful to set this here.
• everywhere() now errors if the specified compute profile is not yet set up, rather than fail silently.
• launch_local() and launch_remote() now strictly require daemons to be set, and will error otherwise.
• serial_config() now validates the arguments provided and returns them as a list. This means any saved configurations from previous package versions must be re-generated.

Updates

• Fixes daemons() to correctly handle a vector of URLs passed to 'url' again.
• Fixes flatmap with mirai_map()[.flat] assigning a variable 'typ' to the calling environment.
• Performance enhancements for mirai(), mirai_map() and the promises method.
• Requires nanonext >= 1.3.0.
• The package has a shiny new hex logo.