HP XC System 2.x Software - Manual (Page 57)

4
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.
4.1 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.
4.2 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
processors. The use of TotalView in the HP XC environment is described in Section 4.2.1. You
can obtain additional information about TotalView from the TotalView documentation and
the TotalView Web site at:
http://www.etnus.com
_________________________ 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:
http://www.streamline-computing.com/softwaredivision_1.shtml
Debugging Applications 4-1