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    There are 8 data channels in MCE. Basically, a worker will obtain a
    lock only when sharing the data channel with another worker.

  * Updated files_flow.pl, files_mce.pl and files_thr.pl to allow for
    many workers for the first task. Updated the synopsis in MCE::Queue.
    Synced example listing in Examples.pod with the examples folder.

  * Remove period from summary line.

1.518 Mon Oct 27 10:00:00 EST 2014

  [BUG FIXES]

  * Corrected MCE::Queue's synopsis due to missing List::MoreUtils line.
    Changed the synopsis to use 1 worker for the 'dir' task in the event
    one were to copy/patse the code and use threads. The glob() function
    is not thread-safe in Perl 5.16.x; fixed in 5.18.2, okay in 5.8 - 14.

  * Use portable syntax for setpgrp in MCE::Signal. This closes issue 1
    at https://code.google.com/p/many-core-engine-perl.

  [NEW FEATURES]

  * New 'fast' option for MCE::Queue. The 'fast' option speeds up ->dequeue
    ops and not enabled by default. It is beneficial for queues not needing
    ->clear or ->dequeue_nb and not altering the optional count value
    while running; e.g. ->dequeue( [ $count ] ).

  * Added three examples: files_flow.pl, files_mce.pl, and files_thr.pl.
  * Benchmarked on several OSes and appended results to MCE::Queue synopsis.

1.517 Thu Oct 23 10:00:00 EST 2014

  [BUG FIXES]

  * Correction applied to MCE::Util::get_ncpu for Tru64 UNIX. This method
    will emit a warning (not croak) whenever the OS is unknown.

  * Changed ${^CHILD_ERROR_NATIVE} to $? in examples/pipe2.pl. This was
    missed in the previous release.

  [ENHANCEMENTS]

  * Added support for DragonFly BSD, SCO OpenServer 5, SCO OpenServer 6 and
    SCO UnixWare 7 to MCE::Util::get_ncpu.

  * Also, validated MCE on FreeBSD, NetBSD, OpenBSD, PC-BSD and JabirOS.
    No further changes to MCE::Util::get_ncpu.

1.516 Fri Oct 03 02:00:00 EST 2014

  [BUG FIXES]

  * Updated IPC for better stability across multiple environments. The fix
    addresses an issue on Windows where sockets fail to respond after a
    period of inactivity; i.e. 4 minutes. Added George Bouras to CREDITS
    for reporting the issue.

  * Tip for folks developing on Windows:
    Open an explorer window and go to C:\Users\<user>\AppData\Local\Temp.
    Right-click on the 'mce' folder and create a shortcut on the desktop.
    Although MCE removes its temp files automatically, it is possible for
    files to remain from a failing app. Go inside the 'mce' folder and
    press ctrl-a to select all files. Then press shift-delete;
    (macbook[pro] folks: fn-shift-delete).

  [ENHANCEMENTS]

  * Corrections to documentation.

1.515 Thu Jul 24 23:30:00 EST 2014

  [BUG FIXES]

  * bin/mce_grep: ${^CHILD_ERROR_NATIVE} is not defined in Perl 5.8.x.
    Changed to $?.

  [ENHANCEMENTS]

  * Tweaked bin/mce_grep. Compute chunk_level => 'auto' to use 'file' when
    reading STDIN. Set chunk_size to 8M when not specified (4M previously).

  * Added the following names to CREDITS.

       Stephan Kulow       ; for making the OpenSUSE MCE package
       Henry Lu            ; for listening while I chatted away about MCE
       Jillian Rowe        ; for reporting IO::File failing as input_data
       Sylvia Roy          ; for driving while I worked in the passenger seat
       Tom Sasser          ; for reporting bin/mce_grep failing with Perl 5.8.x
       Florian Schlichting ; for making the Debian MCE package

  [NEW FEATURES]

  * Added support for IO::File handles as valid input_data including
    IO:Uncompress:Gunzip.

    Modified SYNTAX section for INPUT_DATA in MCE::Core.pod.

       input_data => $fh,   ## new IO::File "file", "r"
       input_data => $fh,   ## new IO::Uncompress::Gunzip "file.gz"

1.514 Thu Jun 05 09:00:00 EST 2014

  [BUG FIXES]

  * Fixed typo in MCE::Step POD (RT#95250) (Florian Schlichting).
  * Updated MCE::Util's get_ncpu function for AIX (Dana Jacobsen).
  * Do not send a KILL signal after receiving a SIGPIPE.
  * Fixed issue with Makefile.PL on defining the minimum Perl version.

  * Use Scalar::Util (looks_like_number) for validation logic. The regex
    previously were insufficient for large numbers containing scientific
    notation. This impacted the sequence option in MCE.

  [ENHANCEMENTS]

  * The mce-sandbox demo has been released on GitHub demonstrating
    Perl + MCE + Inline::C. The theme is Prime Numbers. This journey
    which began 2 years ago has been completed. There is also the
    mce-sort exercise demonstrating Perl + MCE + External C.