Scalasca: HPC Performance Trace Analyzer

The development of Scalasca was co-funded by the HBP during the Ramp-up Phase. This page is kept for reference but will no longer be updated.

Scalasca logo

Scalasca is a software tool that supports the performance optimisation of parallelprograms by measuring and analysing their runtime behaviour. The analysis identifies potential performance bottlenecks – in particular those concerning communication and synchronization – and offers guidance in exploring their causes.

Scalasca targets mainly scientific and engineering applications based on the programming interfaces MPI and OpenMP, including hybrid applications based on a combination of the two. The tool has been specifically designed for use on large-scale systems including IBM Blue Gene and Cray XT, but is also well suited for small- and medium-scale HPC platforms. The software is available for free download under the New BSD open-source license.

Scalasca is part of a larger set of tools for parallel performance analysis and debugging developed by the “Virtual Institute – High Productivity Supercomputing” (VI-HPS) consortium. Further documentation, training and support are available through VI-HPS.

The new version 2.2.2 provides the following new features (externally funded) as compared to version 2.2 that was part of the HBP-internal Platform Release in M18:

  • Power8, ARM64, and Intel Xeon Phi support
  • Pthread and OpenMP tasking support
  • Improved analysis
  • Prototype OmpSs support
Date of releaseJanuary 2015
Version of software2.2.2
Version of documentation2.x
Software available
ResponsibleScalasca team:
Requirements & dependenciesSupported OS: Linux
Needs Score-P v1.2 or newer and Cube library v4.3 software packages
Target system(s)Supercomputers (Cray, IBM BlueGene, Fujitsu K/FX10),w Linux Clusters of all kinds, Linux Workstations or Laptops (for test/training)