[X10-announce] X10 2.4.3 released

[David P G. <gr...@us...>]

We're pleased to announce that X10 and X10DT 2.4.3 are now available for
download at http://x10-lang.org/releases/x10-release-243.

Highlights of the X10 2.4.3 Release Notes are appended:

HIGHLIGHTS OF THIS RELEASE

A major new feature in X10DT 2.4.3 is support for basic
source-level debugging of X10 programs running on Managed X10.
With this release debugging operations that rely on source
line information (e.g. breakpoints, single stepping) can be
done at the X10 source level.  Debugging operations like variable
inspection can only be done at the level of the generated Java
code (due to limitations of JSR-045 SMAP mappings). To try this
new feature, simply launch a Managed X10 program using the usual
Eclipse debugging procedures.

In previous versions of X10, when a Place had no activities
to execute the XRX runtime would consume CPU by actively pooling
the network for incoming activities.  In X10 2.4.3 the default has
been changed to instead block the polling thread on the network,
thus allowing idle X10 Places to not consume CPU resources.
If the previous behavior is desired (active polling), set the
environment variable X10_BUSY_WAITING to true.

SUMMARY OF ISSUES RESOLVED IN THIS RELEASE

Below is a summary of JIRA issues addressed for the X10 2.4.3

** New Features and Improvements
    * [XTENLANG-1012] - Busy wait in x10::runtime::Pool::scan()
    * [XTENLANG-3367] - Handle non-trivial at() expressions in CUDA kernels
    * [XTENLANG-3370] - generate SMAPI debug info in command line builds
    * [XTENLANG-3385] - GML: add Manhattan, Chebyshev distances to
x10.matrix.Vector
    * [XTENLANG-3386] - New class x10.util.Date

** Bugs
    * [XTENLANG-3219] - Exceptions during serialization/deserialization can
hang XRX
    * [XTENLANG-3368] - Resilient X10: failure to reliably raise DPE when
System.killHere is called
    * [XTENLANG-3374] - Team: illegal broadcastFlat within atomic block
    * [XTENLANG-3376] - bugs in x10.io.File.list()
    * [XTENLANG-3377] - Team.WORLD.barrier() intermittent hang with X10RT
MPI
    * [XTENLANG-3383] - Elements of Rail[struct] not initialized to zero
    * [XTENLANG-3384] - Incomplete type error on cast to constrained type
in postcompile
    * [XTENLANG-3387] - Machine architecture unknown for X10RT MPI bindings

** Tasks
    * [XTENLANG-3332] - Update install instructions on website