Method and apparatus for obtaining stack traceback data for multiple computing nodes of a massively parallel computer system
Patent
·
OSTI ID:1015491
- Rochester, MN
A data collector for a massively parallel computer system obtains call-return stack traceback data for multiple nodes by retrieving partial call-return stack traceback data from each node, grouping the nodes in subsets according to the partial traceback data, and obtaining further call-return stack traceback data from a representative node or nodes of each subset. Preferably, the partial data is a respective instruction address from each node, nodes having identical instruction address being grouped together in the same subset. Preferably, a single node of each subset is chosen and full stack traceback data is retrieved from the call-return stack within the chosen node.
- Research Organization:
- International Business Machines Corp., Armonk, NY (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- B591700
- Assignee:
- International Business Machines Corporation (Armonk, NY)
- Patent Number(s):
- 7,673,182
- Application Number:
- 11/425,778
- OSTI ID:
- 1015491
- Country of Publication:
- United States
- Language:
- English
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