Arm DDT
{{Infobox software
| name = Linaro DDT
| title = Linaro DDT
| developer = Linaro (formerly Arm Forge, formerly Allinea Software Ltd.)
| released = 2002
| latest release version = 24.1.3
| latest release date = {{Start date and age|2025|5}}[https://www.linaroforge.com/release-history Linaro Forge Release History]
| operating system = Linux and Blue Gene/Q. (Windows and macOS for remote client)
| platform = x86-64, Arm, PowerPC, Intel Xeon Phi and CUDA
| language = English
| genre = Debugger
| licence = Proprietary commercial software
| website = {{URL|https://www.linaroforge.com/linaro-ddt}}
}}
Linaro DDT is a commercial C, C++ and Fortran 90 debugger.{{cite news
| title = How Allinea Helps Scientists Run their Applications Faster and Better
| url = http://insidehpc.com/2012/12/05/how-allinea-helps-scientists-run-their-applications-faster-and-better/
| publisher = InsideHPC
| date = 5 December 2012
}} It is widely used for debugging parallel Message Passing Interface (MPI) and threaded (pthread or OpenMP) programs, including those running on clusters of Linux machines.
Debugger
It is used to find bugs on both small and large clusters, from 1 to 100,000s of processors. It features memory debugging which detect memory leaks, or reading and writing beyond the bounds of arrays.
It was the first debugger to be able to debug petascale applications - having been used to debug applications running concurrently on 220,000 processes on a Cray XT5 at Oak Ridge National Laboratories.{{cite web|url=http://www.olcf.ornl.gov/2010/07/12/upgrade-adds-muscle-to-debugger/|title=Upgrade Adds Muscle to Debugger|publisher=Oak Ridge National Laboratories|accessdate=14 June 2011|archive-url=https://web.archive.org/web/20110623011535/http://www.olcf.ornl.gov/2010/07/12/upgrade-adds-muscle-to-debugger/|archive-date=2011-06-23|url-status=dead}}{{cite news|url=http://cacm.acm.org/news/96797-ornl-allinea-prep-debugging-tool-for-petascale-supercomputers/fulltext|title=ORNL, Allinea Prep Debugging Tool for Petascale Supercomputers|date=30 July 2010|journal=Communications of the ACM}} This is possible interactively as the debugger's control tree architecture leads to logarithmic performance for most collective operations. Linaro DDT uses the GNU Debugger as debug engine.
Linaro DDT also supports coprocessor architectures such as Intel Xeon Phi coprocessors{{cite news|url=http://www.hpcwire.com/hpcwire/2012-11-13/allinea_releases_tools_for_xeon_phi_developers.html|title=Allinea Releases Tools for Xeon Phi Developers|date=13 November 2012|publisher=HPCWire|access-date=2013-01-15|archive-url=https://web.archive.org/web/20130307035519/http://www.hpcwire.com/hpcwire/2012-11-13/allinea_releases_tools_for_xeon_phi_developers.html|archive-date=2013-03-07|url-status=dead}} and Nvidia CUDA GPUs.{{cite web|url=https://developer.nvidia.com/debugging-solutions|title=NVIDIA debugging solutions page|date=19 August 2011 }}
It is part of Linaro Forge - a suite of tools for developing code in high performance computing - which also includes the performance profiler for scalar, multithreaded and parallel codes - Linaro MAP.{{Cite web |title=Linaro Forge |url=https://www.linaroforge.com/ |access-date=2024-10-13 |website=www.linaroforge.com |language=en}}
{{As of|2011}}, 80 percent of the world's top 25 supercomputers on the TOP500 list, use Arm's tools.{{cite news
|title = Allinea Selected as a Red Herring Top 100 Europe Technology Company
|url = http://www.hpcwire.com/hpcwire/2011-06-01/allinea_selected_as_a_red_herring_top_100_europe_technology_company.html
|publisher = Tabor Communications
|work = HPCwire
|date = 2011-06-01
|accessdate = 2013-02-07
|archive-url = https://web.archive.org/web/20120314112744/http://www.hpcwire.com/hpcwire/2011-06-01/allinea_selected_as_a_red_herring_top_100_europe_technology_company.html
|archive-date = 2012-03-14
|url-status = dead
}}
Notes
{{Reflist}}
External links
- [https://www.linaro.org/news/linaro-to-acquire-arm-forge-software-tools-business/ Linaro to Acquire Arm Forge Software Tools Business]
- [https://web.archive.org/web/20150110111750/http://www.vi-hps.org/tools/allinea-ddt.html Virtual Institute for High Productivity Supercomputing Allinea DDT guide]