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...http://www.google.com/patents/US7673182?utm_source=gb-gplus-sharePatent US7673182 - Method and apparatus for obtaining stack traceback data for multiple computing nodes of a massively parallel computer system
