Allinea DDT: The powerful scalable parallel debugging tool
DDT, the Distributed Debugging Tool is a comprehensive graphical debugger for scalar, multi-threaded and large-scale parallel applications that are written in C, C++ and Fortran.
Elegant and Powerful
DDT is the most advanced debugging tool available.
With a now-famous user interface that wins praise for ease-of-use and capability, it is quite simply an integral part of efficient software development.
The advanced source code browser shows at a glance the state of the processes within a parallel job, and enormously simplifies the task of debugging large numbers of simultaneous processes. DDT has a wealth of features designed to debug effectively - from deadlock and memory leak tools, to data comparison and groupwise process control, and it interoperates with all known MPI implementations and all batch queuing systems.
Simplifying debugging at scale
For
multi-threaded or OpenMP development DDT allows threads to be
controlled individually and collectively, with advanced capabilities to
examine data across threads.
The Parallel Stack Viewer is a unique way to see the program state of all processes and threads at a glance - and developers can easily spot rogue processes or threads, and even define new control groups from it, meaning massively parallel programs are easy to manage.
DDT's interface scales amazingly - providing the same clarity of information at thousands of processes as at a handful - highlighting commonality and differences with summary views and data comparison to focus your attention.
DDT is proven at scale on the most powerful systems - including debugging applications at over 200,000 cores simultaneously.
Catching common problems quickly
DDT's advanced memory debugging capability brings tremendous benefits to developers of scalar and parallel applications.
DDT can find memory leaks, and detect common memory usage errors before your program crashes.
With DDT, you can check a pointer is valid or find the stack when it was allocated - a fantastic boost for any developer. Reading or writing beyond the ends of allocated data can also be detected - instantly.
Supporting the languages you need
A programmable STL Wizard enables you to view C++ Standard Template Library variables like the abstract data they represent, viewing lists, maps, sets, multimaps, pairs, deques and strings easily. It is also extensible to let you visualize your own complex classes as you would like.
With Fortran 77, 90, 95 and 2003 support, developers of scientific code have full access to modules, allocated data, strings and derived types.
View MPI message queues to discover deadlock in parallel codes, or visualize data in 3D with the multi-dimensional array viewer.
Download DDT product information as a pdf.
Compatibility
DDT is available on Linux for Itanium, Opteron, EM64T, PowerPC, IBM Cell Broadband Engine and x86, IBM AIX 5.2 and 5.3, Sun Solaris (v9/10 for SPARC v10 for Opteron), NEC SUPER-UX and Cray XT4.
It is compatible with compilers from Absoft, IBM, Intel, Pathscale, ST PGI, Sun Microsystems, and the GNU compiler suite.
DDT supports all known MPI distributions.
Availability
Please visit our download page to get an evaluation copy or contact Allinea at info@allinea.com for more information.
Purchasing
Licences for desktop development can be purchased from our online store, or by contacting our sales team. To obtain further information about licensing larger configurations or bulk licensing and pricing, contact sales@allinea.com
Support
Announcements of fixes and known issues are found on the updates page. Our support team is also waiting to help - just email support@allinea.com for help.
