MCE 1.499_003

on Perl CPAN

• There are 3 items remaining before releasing the final MCE 1.5.

  1. Document MCE::Stream
     
  2. Finish documentation on MCE::Loop
     
  3. Re-visit documentation on MCE::Flow
     

;) mario

• MCE 1.5 is backwards compatible with 1.4 and below.

• The documentation, previously MCE.pod, moved to MCE::Core.pod with the
  examples section placed in MCE::Examples.pod. The MCE.pod file serves
  as an index page for the various documentation.

• IPC has been enhanced with 8 data channels. Many operations run 3x when
  compared with MCE 1.4.

• Five models: MCE::Flow, MCE::Grep, MCE::Loop, MCE::Map, and MCE::Stream.

• Hybrid queues via MCE::Queue allowing for normal and priority queues.

• MCE::Subs for exporting functions prefixed with mce_; e.g. mce_wid.

• All public methods can be called directly using the package name
  and method e.g. MCE->wid, MCE->run.

  MCE->new(

  max_workers => 'auto',
  user_func => sub {
     my $wid = MCE->wid;
     MCE->sendto("STDOUT", "Hello from $wid\n");
  }
  

  );

  MCE->run;

• New options (gather, interval, task_name).

The task_end option can now be specified at the top level.
See docs for use case.

Input_data can be specified inside the first task instead of having
to specify this at the top level. Input_data is ignored when specified
for tasks other than the first task.

 user_tasks => [{
    input_data => \@list,
    ...
 },{
    ...
 }

• New public methods
  chunk_id, gather, freeze, thaw, yield, task_name, print, printf, say

• New example (interval.pl).

• Optimized the egrep.pl and wc.pl examples. These run much faster.
  Try these out against large log files. Both examples fly.

• Barrier synchronization update. Two sockets are utilized instead of
  2 lock files. This, now works wonderfully under the Cygwin environment.
  For threading, the removal of 2 lock files increases the number of
  threads allowed from about 1/3rd previously to under 1/2 of ulimit,
  e.g. int(ulimit -n / 2 - 20).

• Removed the logic for determining MAX_OPEN_FILES and MAX_USER_PROCS.
  MCE no longer has a constraint on max_workers allowed.

• Code re-factor work. Added a private method _validate_runstate called
  by various methods. Organized the code slightly such as placement of
  methods.

• Localize the input scalar $_ prior to calling userfunc. Folks can
  use $ for input_data and sequence of numbers. Added section to docs
  explaining DEFAULT INPUT SCALAR.