Methods and systems for reconstructing the state of a computation
CA 2240347 C · Owner: Architecture Llc · Inventors: Lasser, Cliff; Stanfill, Craig; Lordi, Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Methods and systems for running and checkpointing parallel and distributed applications which does not require modification to the programs used in the system nor changes to the underlying operating system. One embodiment of the invention includes the following general steps: starting an application on a parallel processing system (40), controlling processes for the application including recording of commands and responses (41 42, 43), controlling a , commit protocol (44) detecting failures of the application (45 46), continuing execution of the application from the most recently committed transaction after "replaying" the recorded commands and responses (47).
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed December 11, 1996 and granted July 10, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 11, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 11, 2018.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.