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Open Trace Format

OpenTraceFormat (OTF) is an API specification and library implementation of a scalable trace file format, developed at TU Dresden in partnership with ParaTools with funding from Lawrence Livermore National Laboratory and released under the BSD open source license. The intent of OTF is to provide an open source means of efficiently reading and writing up to gigabytes of trace data from thousands of processes.

OTF Features

Application tracing using OTF can currently be done in the following manner:

Option 1: Using VampirTrace

Option 2: Using Open|SpeedShop

Option 3: Using TAU

For all options, users can view and analyze OTF tracefiles with the Vampir serial viewer or with the VampirServer parallel analysis tool.


ParaTools OTF Web site TU Dresden OTF Web site

High Performance Computing at LLNL    Lawrence Livermore National Laboratory