New features in SCore 4.1

  1. Linux Kernel 2.4.9 support (RedHat 7.1)
  2. Checkpoint/Restart supports disk parity to recover from one host crash
  3. MPE updated to mpich 1.2.1

Unsupported in SCore 4.1

  1. Compaq Alpha Processor is unsupported (untested)
  2. MPICH-SCore driver version 2.0 (ch-score2) is unsupported. Note that the default MPICH-SCore is version 1.0 (ch-score1). If you do not know version 2.0, do not worry about this information.
  3. PM/Agent/UDP is unsupported

Bug Fixes

  1. SCore-D scheduling bug (SCore 4.0) and memory leak bug (SCore 4.0.1)
  2. PM/Myrinet2k is now more stable. Zero-copy communication is now supported in PM/Myrinet2k.

Known Bugs

  1. Checkpointing a process which opens one or more file(s) may not be restarted.
  2. PVM does not work at the moment of this release.
  3. PM/Ethernet does not work well on 3Com 3C905B Ethernet cards.

This document is a part of the SCore cluster system software developed at PC Cluster Consortium, Japan. Copyright (C) 2003 PC Cluster Consortium.