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Revision as of 11:11, 10 March 2010 by Hpcchris (talk | contribs) (Added simple example and special for DDT + Open MPI on Nehalem Cluster)
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Allinea DDT helps developers fix bugs quickly - from the desktop to the largest supercomputer. The most scalable parallel debugger for debugging MPI and multi-threaded codes, DDT leads the world in performance and usability.
Developer: Allinea
Platforms: NEC Nehalem Cluster
Category: Debugger
License: Commercial
Website: Allinea homepage


DDT is available through modules

module load debugger/ddt

Note: Do not forget to compile your application with debugging info (-g option)


starting the application from inside DDT

Set up the environment

module load debugger/ddt module load mpi/openmpi

Compile your application

mpicc -g your_app.c -o your_app

Start DDT:

ddt your_app

Select the right MPI Implementation in the Options and run your program.

Nec Nehalem Cluster special

If you want to debug a parallel Program using Open MPI with DDT on the NEC Nehalem Cluster select 'OpenMPI (Compatibility)' as the desired MPI Implementation.

See also

External links