Berkeley UPC 2.8.0 and GASNet 1.12.0 released!

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We are pleased to announce the release of Berkeley UPC 2.8.0, which is now
available for download at:

     http://upc.lbl.gov/download/

Source is available for all supported platforms.  Binary distributions are
available for Mac OS X and Windows/Cygwin. As usual, CD's containing the 
release will be freely available at the PGAS booth at SuperComputing 08 next 
week.

The 2.8.0 release contains numerous improvements over our last release,
including:

     - Add native support for IBM BlueGene/P via new 'dcmf' network
     - Upgrade portals network support to cache local memory registration
     - Many small improvements to IBM LAPI support
     - Fix performance and correctness problems in Myrinet GM support
     - Add Pathscale compilers to supported list for Cray XT machines
     - Improved support for XLC compilers on Linux
     - Extend "ibv" (InfiniBand) support to Qlogic's InfiniPath adapters
     - Add/improve support for MIPSEL/Linux platforms, including SiCortex
     - Extend GCCUPC support to GCCUPC 4.2.0.2 and newer
     - Add user documentation for experimental UPC-level compiler
         optimizations (see the upcc manpage)
     - Workaround for a gcc 4.x (x<3) optimizer bug has changed
         We now encourage updating to gcc >= 4.3.0, though our previously
         documented workarounds remain valid
     - Add support for autoconf 2.62 and newer
     - Add experimental support for ARM processors
     - Misc improvements and/or fixes for MIPS, Alpha, PPC and SPARC 
processors
     - Fix the following notable bugs in 2.6.0 (see http://upc-bugs.lbl.gov 
for details):
       - bug1847 - Fix stability problems in cygwin -pthread apps
       - bug2391 - Berkeley UPC atomics failures on SGI Altix
       - bug2383 - Failure to parse gcc-4.3.2's private includes
       - bug2304 - "make install" always appears up-to-date on Cygwin
       - bug2209 - Provide missing documentation for IBM SP job launch
       - bug2188 - Support unequal thread distribution on LAPI network
       - bug2025 - Translator build failures w/ g++ >= 4.1.2
       - Various code generation bugs in the source-to-source translator
       - Source-to-source translator error messages on various valid inputs
       - Source-to-source translator crashes on various valid inputs
     - Additional bug reports resolved with improved/clarified documentation
     - Additional bugs fixed in GASNet (see gasnet/ChangeLog)
     - Numerous misc minor bug fixes

Bundled with this release is the new 1.12.0 release of the GASNet 
communication system, which is also available for separate download at:

             http://gasnet.cs.berkeley.edu/

Below are the notable changes at the GASNet level since the last public 
release:

* New conduits added:
   - dcmf-conduit: High-performance conduit for the IBM BlueGene/P
     using the DCMF communication interface.

* IBM SP/LAPI:
   - Fix a bug that prevented the use of unequal segment sizes across
     nodes in LAPI-RDMA mode
   - Fix several exit-time crashes
   - Remove deprecated support for Federation LAPI version < 2.3.2.0
   - Lots of misc cleanups and tuning

* Myrinet/GM:
   - Fix some AM performance and correctness problems, esp with AMLong

* CrayXT/Portals:
   - Upgrade to cache local memory registration using firehose library
   - Add GASNET_PORTAL_PUTGET_BOUNCE_LIMIT setting

* InfiniBand/{VAPI,IBV}:
   - Extend "ibv" (InfiniBand) support to Qlogic's InfiniPath adapters

* Platform support:
   - Add support for the BlueGene/P architecture (mpi and dcmf)
   - Add experimental support for ARM processors
   - Add support for PGI compiler on Mac OSX
   - Misc improvements and/or fixes for MIPS, Alpha, PPC and SPARC processors
   - Add Pathscale compilers to supported list for Cray XT machines
   - Improved support for XLC compilers on Linux
   - Add/improve support for MIPSEL/Linux platforms, including SiCortex
   - Add support for the default libpthread on Cray XT CNL 2.1
   - Add support for Playstation 3 PowerPC

* Configure features:
   - Add --disable-mmap support to force the use of malloc for the GASNet 
segment
   - Add configure option --with-max-pthreads-per-node=N to override the
     GASNet default limit of 256 pthreads per node
   - Add support for autoconf 2.62 and newer
   - Workaround stability problems in cygwin pthread mutexes (bug 1847)

* GASNet tools:
   - Upgrades to error reporting in the GASNet debug mallocator
   - Add GASNET_MALLOCFILE option and corresponding gasnet_trace support
     to assist in leak detection for libgasnet and apps using debug mallocator
   - Add "strong" atomics to the GASNet-tools interface
   - New gasnett_performance_warning_str() returns a string reporting
     performance-relevant attributes of the current GASNet build

* Misc changes:
   - Workaround for a gcc 4.x (x<3) optimizer bug has changed
       We now encourage updating to gcc >= 4.3.0, though our previously
       documented workarounds remain valid
   - Minor improvements to the collectives environmental interface
   - Fix cross-configure detection of stack growth direction
   - Avoid "capturing" __attribute__ when compiler mismatch is detected

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