TotalView 2021.3

This help set includes all the Classic TotalView documentation. See the user guides for concept information and tutorials. See the Reference Guide for CLI commands, options, variables, transformations, and system requirements.

If you are new to TotalView, see these topics to get started:

Classic TotalView Getting Started Guide

“Basic Debugging”

“Loading and Managing Sessions”

New in Classic TotalView for 2021.3

Classic TotalView includes the following primary new or updated features. For a complete change history for TotalView, MemoryScape and ReplayEngine, see the document “TotalView_for_HPC_Change_Log.pdf” in the PDF directory of your installation, or see the TotalView Change Log on the TotalView documentation page on the website.

Reverse Debugging

Enhancements to reverse debugging include better support of handling signals while running backwards and properly focusing on the thread that hits a breakpoint while executing in reverse.

TotalView Student Edition Installations

The installer for the Student Edition of TotalView has been updated to provide a native installation experience, improving the installation and application behavior of TotalView on macOS.

The new UI TotalView User Interface

To change between the new UI and the TotalView Classic UI, use the Preferences dialog on the Display menu. You can also launch the new UI with the -newUI switch:

totalview -newUI

New features added to the new, modern user interface in this release include:

Memory Debugging Event Report

Receive event notifications for various memory problems in your code, including memory freed twice, memory API failures, non-heap memory being freed, and other errors.

Upgraded Python Support

Mixed language debugging C/C++ with Python now supports the latest Python version, encompassing 3.5 to 3.9, as well as Python 2.7.

GPU Status View (Early Access)

Analyze your code running across one or more GPUs with the new GPU Status view which aggregates and filters attributes to display how CUDA code is running on one or more GPUs within a node and across a cluster. Enable it by choosing Preferences > Labs, then restarting TotalView’s new UI.