Allinea Distributed Debugging Tool

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Allinea DDT
Developer(s) Allinea Software Ltd.
Initial release 2002
Stable release 5.0 / February 2015; 3 months ago (2015-02)
Development status Active
Operating system Linux and Blue Gene/Q
Platform Intel x86 - 32-bit, x64, ARM, PowerPC, Intel Xeon Phi and CUDA
Size 61 MB
Available in English
Type Debugger
Licence Proprietary commercial software
Allinea DDT logo

Allinea DDT is a commercial debugger produced by Allinea Software[1] of Warwick, United Kingdom, primarily for debugging parallel MPI or OpenMP programs, including those running on clusters of Linux machines, but also used by many for scalar code in C, C++ and Fortran 90. As of November 2013 it is used on 46 of the top 100 supercomputers on the TOP500 list.[2]

It is used to find bugs on both small and large clusters, from 1 to 1,000s of processors. It features memory debugging which detect memory leaks, or reading and writing beyond the bounds of arrays.

It was the first debugger to be able to debug Petascale applications - having been used to debug applications running concurrently on 220,000 processes on a Cray XT5 at Oak Ridge National Laboratories.[3][4] This is possible interactively as the debugger's control tree architecture leads to logarithmic performance for most collective operations. Allinea DDT uses the GNU Debugger as debug engine.

Allinea DDT also supports coprocessor architectures such as Intel Xeon Phi coprocessors[5] and NVIDIA CUDA GPUs.[6]

It is part of Allinea Forge - a suite of tools for developing code in high performance computing - which also includes the performance profiler for scalar, multithreaded and parallel codes - Allinea MAP.

See also[edit]


  1. ^ "How Allinea Helps Scientists Run their Applications Faster and Better". InsideHPC. 5 December 2012. 
  2. ^ "Allinea Selected as a Red Herring Top 100 Europe Technology Company". HPCwire (Tabor Communications). 2011-06-01. Retrieved 2013-02-07. 
  3. ^ "Upgrade Adds Muscle to Debugger". Oak Ridge National Laboratories. Retrieved 14 June 2011. 
  4. ^ "ORNL, Allinea Prep Debugging Tool for Petascale Supercomputers". Communications of the ACM. 30 July 2010. 
  5. ^ "Allinea Releases Tools for Xeon Phi Developers". HPCWire. 13 November 2012. 
  6. ^ "NVIDIA debugging solutions page". 

External links[edit]