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DDT: Difference between revisions
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(Added simple example and special for DDT + Open MPI on Nehalem Cluster) |
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| website = [http://www.allinea.com/ Allinea homepage] | | website = [http://www.allinea.com/ Allinea homepage] | ||
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== Usage == | |||
DDT is available through modules | |||
{{Command|command = | |||
module load debugger/ddt | |||
}} | |||
{{Note|text = | |||
Do not forget to compile your application with debugging info (<tt>-g</tt> option) | |||
}} | |||
== Examples == | |||
=== starting the application from inside DDT === | |||
Set up the environment | |||
{{Command| command = | |||
module load debugger/ddt | |||
module load mpi/openmpi | |||
}} | |||
Compile your application | |||
{{Command| command = | |||
mpicc -g your_app.c -o your_app | |||
}} | |||
Start DDT: | |||
{{Command| command = | |||
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. | |||
<!-- === attaching to an already running application === --> | |||
== See also == | == See also == | ||
Revision as of 11:11, 10 March 2010
| 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. |
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Usage
DDT is available through modules
module load debugger/ddt
Note: Do not forget to compile your application with debugging info (-g option)
Examples
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.