# $PCCC_Release SCore Release 7.Beta.2.1 BETA1 of SCore Cluster System Software (2009/05/27) $
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#          SCore Cluster System Software versions 1 through 4
#            Copyright (c) 2001,2000,1999,1998,1997
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SCORE7-BETA-2 RELEASE NOTE

    - Some outcomes of the eScience project (funded by Japanese MEXT),
      a flexible file staging system, STG, and file I/O tarcing
      utility, IOC, are added.

    - The new PMX device, SCTP, is introduced, and the original source
      code of the lksctp library is also added into the SCore source tree 
      in the case of missing lksctp RPM.

    - The remote process spawning program, Windup, is introduced
      and is combined with the scout command and can work with 
      "ssh -A" by default, or rsh when it is specified so. 

    - The on-demand file staging system, Catwalk, is introduced

    - SCore-D KVS system has KVS cache to fasten the user program
      initilization.

    - Searching PMX devices when no device is explicitly specified.

SCORE7-BETA-1 RELEASE NOTE

    - X11 protocol relaying option of the scrun command is introduced.

    - The scratch command which adds line header so that users can see
      which process outputs the line is newly introduced.

    - The scan command to attach gdb is newly introduced. 

    - The papion command, which enables performance measurement via
      PAPI, is newly introduced.

    - The socut command now can work with ssh when the SCORE_RSH
      environment is set to ssh.

    - The configuration options for GLUT and PAPI are newly added.

    - PMX device option can be specified with the network option of
      the scrun command.

    - SCore-D system call bug is fixed and the job invokation speed is
      dramatically improved.

    - MPICH2/Nemesis/SCore termination bug is fixed.

    - The bug of XON-XOFF protocol, which can be seen when large
      amount of standard and error messages are output, is fixed.


SCORE7-BETA-0 RELEASE NOTE

    This SCore7-beta release has some missing features from the final
    target of SCore7. Here is the list of scheduled features.

    * Checkpoint and Restart

    * One-sided communication

    * Gang scheduling

    * Tight coupling with the third party batch schedulers.

    * File staging

    * PMX/TCP

    * Performance tuning

    The final target of full-featured SCore7 is the end of March, 2009.


MAJOR CHANGES FROM SCORE 6

    - The SCore's low-level communication library is now called PMX
      having new API. The performance problem on a multi-core system
      is dramatically improved.

    - Infiniband, Myrinet(2G), Myri10G are supported as well as
      Ethernet. 

    - There are two PMX implementations with Ethernet, PMX/Ethernet
      and PMX/EtherHXB. The former is a stable one and the latter is 
      experimental one at this moment but having higher performance.

    - SCore7 has two MPICH2 implementations, libmtmi and nemesis.

    - The mpi-selector command is enabled and you may choose one of
      SCore MPI implementations or any other MPI implementations.

    - SCore7 now has the man pages. The scorer command is the man page 
      command dedicated for SCore.

    - You can specify not only the allocation of process and core but
      also the allocation of process(es) and CPU socket.

    - The scrun command now supports of invoking two or more programs
      in a parallel job in the way of the mpirun commands. For
      example, "scrun a.out : b.out." 

    - No need of restarting scoreboard daemon process when you change
      scorehosts.db file.  

    - Network configuration files, such as pm-ethernet.conf, are no
      longer needed.

    - No file staging takes place in this beta version and the
      executable binary file must be located on an NFS volume.

    - In the scout command, the output from the compute hosts is 
      not only merged but also sorted or reverse-sorted.

    - The command to monitor the activity of user job in real-time is
      now called "scope" and you can attach monitor(s) whenever you
      want. 

    - Lots of bug fixes and enhancements.