Mechanism of supporting sub-communicator collectives with o(64) counters as opposed to one counter for each sub-communicator
Patent
·
OSTI ID:1236466
A system and method for enhancing barrier collective synchronization on a computer system comprises a computer system including a data storage device. The computer system includes a program stored in the data storage device and steps of the program being executed by a processor. The system includes providing a plurality of communicators for storing state information for a barrier algorithm. Each communicator designates a master core in a multi-processor environment of the computer system. The system allocates or designates one counter for each of a plurality of threads. The system configures a table with a number of entries equal to the maximum number of threads. The system sets a table entry with an ID associated with a communicator when a process thread initiates a collective. The system determines an allocated or designated counter by searching entries in the table.
- Research Organization:
- GLOBALFOUNDRIES INC., Grand Cayman, KY (Cayman Islands)
- Sponsoring Organization:
- USDOE
- Assignee:
- GLOBALFOUNDRIES INC.
- Patent Number(s):
- 9,244,734
- Application Number:
- 14/015,098
- OSTI ID:
- 1236466
- Country of Publication:
- United States
- Language:
- English
SMARTMAP: Operating system support for efficient data sharing among processes on a multi-core processor
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conference | November 2008 |
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