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Method and apparatus for obtaining stack traceback data for multiple computing nodes of a massively parallel computer system

United States Patent

7,673,182
March 2, 2010
View the Complete Patent at the US Patent & Trademark Office
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.
Gooding; Thomas Michael (Rochester, MN), McCarthy; Patrick Joseph (Rochester, MN)
International Business Machines Corporation (Armonk, NY)
11/ 425,778
20080126767
June 22, 2006
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with Government support under Contract No. B591700 awarded by the Department of Energy. The Government has certain rights in this invention.