NHSE Software Catalog

P2D2 - A Portable Parallel/Distributed Debugger

url

http://www.nas.nasa.gov/NAS/Tools/Projects/P2D2/

abstract

P2D2 is a debugger for parallel and distributed computations with a common
interface on a variety of machines. This interface includes process
navigation components that scale to a large number of processes. The
design incorporates a client-server model and protocol which dictates the
interaction between a message-passing library and the debugger, thereby
isolating non-portable debugger code from the user interface. The process
abstractions used for debugging message-passing programs can be easily
adapted to debug HPF programs at the source level. This allows the
debugger to present information hidden in tool-generated code in a
meaningful manner.

contact

Robert Hood / rhood@nas.nasa.gov