Tuesday, June 16, 2015

Distributed vs. Non-Distributed Computing

Distributed and non-distributed computing has conceptual differences:
  • Latency
  • Memory access
  • Partial failure
  • Concurrency
Major problems in distributed computing correspond to this differences:
  • Ensuring adequate performance
  • Dealing with differences in memory models between local and distributed entities
  • Dealing with partial failures and lack of a central resource manager
  • Dealing with problems of concurrency
Distributed application interface should reflect its distributed nature. Merging this two models leads to one of the following problems:
  • Making local computing looks like distributed makes local computing unnecessary difficult.
  • Making distributed computing looks like local leads to the unreliable system.

  1. A Note on Distributed Computing (1994)