Method and apparatus for transforming program code

摘要

Provided is a method of transforming program code written such that a plurality of work-items are allocated respectively to and concurrently executed on a plurality of processing elements included in a computing unit. A program code translator may identify, in the program code, two or more code regions, which are to be enclosed by work-item coalescing loops (WCLs), based on a synchronization barrier function contained in the program code, such that the work-items are serially executable on a smaller number of processing elements than a number of the processing elements, and may enclose the identified code regions with the WCLs, respectively.

主权项

1. A method of transforming program code written such that a plurality of work-items are concurrently executed on a plurality of processing elements included in a computing unit, the method comprising:
identifying, in the program code executed at a computing unit, two or more code regions that are to be enclosed by work-item coalescing loops (WCLs) based on a synchronization barrier function contained in the program code, such that the work-items are serially executable on a smaller number of processing elements than a number of the work-items; enclosing the identified code regions with the WCLs; and in response to a private variable contained in the program code being defined in one of the identified code regions and being used in another identified code region, expanding the private variable according to a number of dimensions in identifiers of the work-items.