Automatic parallelization in a tracing just-in-time compiler system
US8959496B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2010 |
| Grant date | Feb 17, 2015 |
| Priority date | — |
| Expiry date | Dec 9, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/449
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A tracing just-in-time (TJIT) compiler system is described for performing parallelization of code in a runtime phase in the execution of code. Upon detecting a hot loop during the execution of the code, the compiler system extracts trace information from sequentially recorded traces. In a first phase, the compiler system uses the trace information to identify at least one group of operation components that can be operated on in a parallel manner. In a second phase, the compiler system provides instructions which allocate the group of operation components to plural processing resources. A native code generator module carries out those instructions by recompiling native code that directs the operation of a native system to perform parallel processing. The compiler system terminates a group if it encounters program data in a loop iteration that is not consistent with previously encountered predicated information (upon which it records a new trace in a sequential manner).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.