---
name: "tau_treemerge.pl"
section: "1"
platform: "linux"
package: "tau"
version: "2.17.3.1.dfsg-4.2"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/tau_treemerge.pl"
---

# tau\_treemerge.pl(1)

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

## NAME

tau\_treemerge.pl - combine multiple node and or thread TAU tracefiles into a merged tracefile

## SYNOPSIS

**tau\_treemerge.pl** \[**-n** *break\_amount*\]

## DESCRIPTION

tau\_treemerge.pl 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.

tau\_treemerge.pl will generate the specified merged trace file and an event definition file, tau.edf by default.

## OPTIONS

**-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, tau\_treemerge.pl will incrementally merge the trace files so as not to exceed the number of open file descriptors.

## SEE ALSO

tau\_merge

tau\_convert

tau2profile

tau2vtf

tau2elg

tau2slog2