| [OTF2](https://www.score-p.org) | The Open Trace Format 2 is a highly scalable, memory efficient event trace data format plus support library. It is the new standard trace format for Scalasca, Vampir, and TAU and is open for other tools. |
| [PAPI](https://icl.cs.utk.edu/projects/papi/) | PAPI provides the tool designer and application engineer with a consistent interface and methodology for use of the performance counter hardware found in most major microprocessors. PAPI enables software engineers to see, in near real time, the relation between software performance and processor events. In addition Component PAPI provides access to a collection of components that expose performance measurement opportunites across the hardware and software stack. |
| [Paraver](https://tools.bsc.es/paraver) | A very powerful performance visualization and analysis tool based on traces that can be used to analyse any information that is expressed on its input trace format. Traces for parallel MPI, OpenMP and other programs can be genereated with Extrae. |
| [Score-P](https://www.score-p.org) | The Score-P measurement infrastructure is a highly scalable and easy-to-use tool suite for profiling, event tracing, and online analysis of HPC applications. |
| [Vampir](http://www.vampir.eu) | The Vampir software tool provides an easy-to-use framework that enables developers to quickly display and analyze arbitrary program behavior at any level of detail. The tool suite implements optimized event analysis algorithms and customizable displays that enable fast and interactive rendering of very local_complex performance monitoring data. |
