Intraprocedural privatization for shared array references within partitioned global address space (PGAS) languages

Patent metadata

Field	Value
Publication number	US-8990791-B2
Application number	US-201113194889-A
Country	US
Kind code	B2
Filing date	Jul 29, 2011
Priority date	Jul 29, 2011
Publication date	Mar 24, 2015
Grant date	Mar 24, 2015

Abstract

Partitioned global address space (PGAS) programming language source code is retrieved by an executed PGAS compiler. At least one shared memory array access indexed by an affine expression that includes a distinct thread identifier that is constant and different for each of a group of program execution threads targeted to execute the PGAS source code is identified within the PGAS source code. It is determined whether the at least one shared memory array access results in a local shared memory access by all of the group of program execution threads for all references to the at least one shared memory array access during execution of a compiled executable of the PGAS source code. A direct memory access executable code is generated for each shared memory array access determined to result in the local shared memory access by all of the group of program execution threads.

First claim

What is claimed is:

1. A method, comprising:
retrieving, via an executed partitioned global address space (PGAS) programming language compiler, PGAS source code;
identifying within the PGAS source code at least one shared memory array access indexed by an affine expression that comprises a distinct thread identifier that is constant and different for each of a plurality of program execution threads targeted to execute the PGAS source code;
determining whether the at least one…

Assignees

• Derisavi Salem
• Tiotto Ettore
• IBM

Inventors

• Derisavi Salem
• Tiotto Ettore

Classifications

• G06F8/4441 Primary

  Physics · mapped topic

• G06F8/45

  Physics · mapped topic