TotalView is a proprietary debugger

Debugger

A debugger or debugging tool is a computer program that is used to test and debug other programs . The code to be examined might alternatively be running on an instruction set simulator , a technique that allows great power in its ability to halt when specific conditions are encountered but which...

 for C

C (programming language)

C is a general-purpose computer programming language developed between 1969 and 1973 by Dennis Ritchie at the Bell Telephone Laboratories for use with the Unix operating system....

/C++

C++

C++ is a statically typed, free-form, multi-paradigm, compiled, general-purpose programming language. It is regarded as an intermediate-level language, as it comprises a combination of both high-level and low-level language features. It was developed by Bjarne Stroustrup starting in 1979 at Bell...

 and Fortran

Fortran

Fortran is a general-purpose, procedural, imperative programming language that is especially suited to numeric computation and scientific computing...

 code that runs on Unix-like

Unix-like

A Unix-like operating system is one that behaves in a manner similar to a Unix system, while not necessarily conforming to or being certified to any version of the Single UNIX Specification....

 operating systems

Operating system

An operating system is a set of programs that manage computer hardware resources and provide common services for application software. The operating system is the most important type of system software in a computer system...

 such as Linux

Linux

Linux is a Unix-like computer operating system assembled under the model of free and open source software development and distribution. The defining component of any Linux system is the Linux kernel, an operating system kernel first released October 5, 1991 by Linus Torvalds...

 and Mac OS X

Mac OS X

Mac OS X is a series of Unix-based operating systems and graphical user interfaces developed, marketed, and sold by Apple Inc. Since 2002, has been included with all new Macintosh computer systems...

 systems, on several platforms.

It allows process control down to the single thread

Thread (computer science)

In computer science, a thread of execution is the smallest unit of processing that can be scheduled by an operating system. The implementation of threads and processes differs from one operating system to another, but in most cases, a thread is contained inside a process...

, the ability to look at data for a single thread or all threads at the same time, and the ability to synchronize threads through breakpoint

Breakpoint

In software development, a breakpoint is an intentional stopping or pausing place in a program, put in place for debugging purposes. It is also sometimes simply referred to as a pause....

s. TotalView integrates memory leak

Memory leak

A memory leak, in computer science , occurs when a computer program consumes memory but is unable to release it back to the operating system. In object-oriented programming, a memory leak happens when an object is stored in memory but cannot be accessed by the running code...

 detection and other heap memory debugging features. Data analysis features help find anomalies and problems in the target program's data, and the combination of visualization and evaluation points lets the user watch data change as the program executes. TotalView includes the ability to test fixes while debugging. It supports parallel programming including Message Passing Interface

Message Passing Interface

Message Passing Interface is a standardized and portable message-passing system designed by a group of researchers from academia and industry to function on a wide variety of parallel computers...

 (MPI), Unified Parallel C

Unified Parallel C

Unified Parallel C is an extension of the C programming language designed for high-performance computing on large-scale parallel machines, including those with a common global address space and those with distributed memory...

 (UPC) and OpenMP

OpenMP

OpenMP is an API that supports multi-platform shared memory multiprocessing programming in C, C++, and Fortran, on most processor architectures and operating systems, including Linux, Unix, AIX, Solaris, Mac OS X, and Microsoft Windows platforms...

. It can be extended to support debugging CUDA

CUDA

CUDA or Compute Unified Device Architecture is a parallel computing architecture developed by Nvidia. CUDA is the computing engine in Nvidia graphics processing units that is accessible to software developers through variants of industry standard programming languages...

. It also has an optional add-on called ReplayEngine that can be used to perform reverse debugging (stepping backwards to look at older values of variables.)

In 2007 Etnus, Inc. changed its name to TotalView Technologies, Inc.

In 2009 TotalView Technologies was acquired by Rogue Wave Software

Rogue Wave (company)

Rogue Wave Software is one of the largest providers of cross-platform software development tools and embedded components for the next generation of HPC applications....

.

External links

• http://www.hpcwire.com/hpc/347014.html TotalView runs on 98 of the top 100 supercomputers (see www.top500.org 2005) in the world
• http://www.roguewave.com/