Patent Yard Sign in
Expired Canadian patentCanada

Overpartitioning system and method for increasing checkpoints in component-based parallel applications

CA 2240286 C · Owner: Lasser, Cliff · Inventors: Lasser, Cliff; Lordi, Robert; Stanfill, Craig

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

Two methods for partitioning the work to be done by a computer program into smaller pieces so that checkpoints may be done more frequently. Initially, a parallel task starts with one or more input data sets having q initial partitions, divides the input data sets into p partitions by some combination of partitioning elements (i.e. partitioners/gatherers) runs an instance of a component program on each of the, p partitions of the data, and produces one or more sets of output files with , each set being considered a partitioned data set. The invention is applied to such a task to create a new "overpartitioned" task as follows: , (1) the partitioner is replaced with an "overpartitioner" …

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 March 12, 2002. 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.
FiledDecember 11, 1996
GrantedMarch 12, 2002
Term endedDecember 11, 2016
Patent numberCA 2240286 C
Classification (IPC)G06F11/08 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedDec 11, 1996Patent grantedMarch 12, 2002Term endedDec 11, 2016

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.