6 debugging applications, Debugging serial applications, Debugging parallel applications – HP XC System 3.x Software User Manual
Page 53: Debugging with totalview, Totalview
6 Debugging Applications
This chapter describes how to debug serial and parallel applications in the HP XC development environment.
In general, effective debugging of applications requires the applications to be compiled with debug symbols,
typically the -g switch. Some compilers allow -g with optimization.
This chapter addresses the following topics:
•
Debugging Serial Applications (page 53)
•
Debugging Parallel Applications (page 53)
Debugging Serial Applications
Debugging a serial application on an HP XC system is performed the same as debugging a serial application
on a conventional Linux operating system. Refer to standard Linux documentation for information about
debugging serial programs.
The following serial debuggers are available for use in the HP XC environment for local debugging:
•
The gdb utility is provided with the standard Linux distribution; it performs line-mode debugging of a
single process.
•
The idb utility is generally available with the Intel compiler suite.
•
The pgdbg utility is generally available with the PGI compilers.
For information about using these debuggers, refer to standard Linux documentation and the documentation
that is available with the specific debugger that you are using.
Debugging Parallel Applications
The following parallel debuggers are recommended for use in the HP XC environment are TotalView and
DDT.
TotalView
TotalView is a full-featured GUI debugger for debugging parallel applications from Etnus, Inc. It is specifically
designed to meet the requirements of parallel applications running on many cores. The use of TotalView in
the HP XC environment is described in
. You can obtain additional information
about TotalView from the TotalView documentation and the TotalView Web site at:
Note
TotalView is not included with the HP XC software and is not supported. If you have any problems installing
or using TotalView, contact Etnus, Inc.
DDT
DDT (Distributed Debugging Tool) is a parallel debugger from Streamline Computing. DDT is a comprehensive
graphical debugger designed for debugging parallel code. It gives users a common interface for most
compilers, languages and MPI distributions. For information about using DDT, refer to Streamline Computing
documentation and the Streamline Computing Web site:
Debugging with TotalView
TotalView is a full-featured, GUI-based debugger specifically designed to meet the requirements of parallel
applications running on many cores.
You can purchase the TotalView debugger, from Etnus, Inc., for use on the HP XC cluster.
TotalView is not included with the HP XC software and technical support is not provided by HP. Contact
Etnus, Inc. for any issues with TotalView.
Debugging Serial Applications
53