[Gems-users] Gems 2.0 Now Available

[Luke Yen <lyen@xxxxxxxxxxx>]

GEMS users,

  The GEMS team has put its finishing touches on the new 2.0 release, and 
it is now available for download at:
    http://www.cs.wisc.edu/gems/download.html

  Notable features of this release include:

     LogTM-specific features/updates:
        - single-chip transactional CMP directory protocol, with sticky-M 
& sticky-S directory states
        - support for partial rollback, closed and open nesting
        - support for compensating and commit actions through our software 
handler
        - "Perfect" Signature support (can emulate inifite RW bits)
            and Finite Signature support (Bit-Select & H3)
        - Summary signature support (Perfect & finite)
        - Limited LogTM-SE virtualization support, all in simulator*
        - support for ISCA '07 Pathologies systems:
              Eager conflict detection, Lazy version management
              Lazy conflict detection, Lazy version management
              Eager conflict detection, Eager version management, with & 
without store-set prediction
              Hybrid conflict resolution policy
        - Sample transactional micro-benchmarks

      Please note that the prior SMP LogTM protocol using RW bits is no 
longer supported in this release.  Finite RW bit (LogTM-like) 
functionality can be emulated by using "Perfect" signatures & the released 
CMP protocol.
     Non-LogTM specific features/updates:
        - x86 support for Ruby (Thanks Soohong Kim for the patch)
        - Simultaneous multi-threading (SMT) support in Opal
        - Protocol fixes
        - Bash scripts to automate generation of "naked/OS/whatever" 
checkpoints**
   *  = We plan on integrating more stable support with OpenSolaris in the 
future
   ** = Full support for building apache, zeus, and jbb workload 
checkpoints should be expected in a patch released shortly.

    The GEMS development team