Name — combine multiple node and or thread TAU tracefiles into a merged tracefile

Synopsis [ -n break_amount ]

Description is generated when TAU is configured with the -TRACE option.

This tool assembles a set of tau trace and event files from multiple multiple nodes or threads across a program's execution into a single unified trace file. Many TAU trace file tools operate on merged trace files. will generate the specified merged trace file and an event definition file, tau.edf by default.


-n break_amount set the maximum number of trace files to merge in each invocation of tau_merge. If we need to merge 2000 trace files and if the maximum number of open files specified by unix is 250, will incrementally merge the trace files so as not to exceed the number of open file descriptors.