Thomas W Macdonald

US Patent:

55863256, Dec 17, 1996

Filed:

Dec 10, 1993

Appl. No.:

8/165379

Inventors:

Thomas A. MacDonald - Minneapolis MN
Janet M. Eberhart - Saint Paul MN
Douglas M. Pase - Burnsville MN

Assignee:

Cray Research, Inc. - Eagan MN

International Classification:

G06F 900

US Classification:

395706

Abstract:

A method of setting array boundaries in order to simplify addressing across processor elements in a distributed memory system having global addressing. Each dimension of an array is examined to determine a lower bound, a declared upper bound and an implicit upper bound. The lower bound and the declared upper bound in each dimension are used to set limits for operations on array elements while the implicit upper bound calculated from the lower bound and the declared upper bound is used in calculating the location (processor element and offset) of a particular array element.