From: Available software

- [93-01-21-10-18.30] The Condor system is available via anonymous ftp
  from <URL:ftp://ftp.cs.wisc.edu>.  Condor works entirely at user
  level [no kernel modifications required] but doesn't currently
  support interprocess communication, signals, or fork().  Definitely
  worth a look.

- Bennet S Yee implemented a `mostly portable' checkpoint and restore
  package back around 1987.  When the programmer invokes the
  checkpoint procedure, it saves the state to a file; when a second
  process with the same program (but with different arguments) is
  started which calls the restore procedure, it reads the old state
  from the file.  Available via anonymous ftp from
  <URL:ftp://play.trust.cs.cmu.edu/usr/bsy/pub/save_world.shar.Z>.
  This package is known to work for Pmaxen, Sun4's, Sun3's, IBM RTs,
  and VAXen.  Porting it to a new architecture should be relatively
  simple -- look at the README file.

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