Welcome
What's New
View new features for FlowTracer 2025.1.0.
FlowTracer Overview
An advanced mission critical dependency management platform for developing and executing flows.
FlowTracer Tutorials
Discover FlowTracer functionality with interactive tutorials.
Altair FlowTracer User Guide
FlowTracer is a complete system to create, manage, and execute design flows.
Altair FlowTracer Administrator Guide
This manual is aimed at the person who will be the administrator for FlowTracer. This person will be responsible for configuring the network resources, setting up the licensing, and establishing security and access rules for the system.
Altair FlowTracer Developer Guide
- FlowTracer Roles
  When using FlowTracer in large deployments, three main roles emerge: Administrator, Developer and User. In smaller organizations, a given person may have multiple roles, but the duties of each role still exist.
- Environment Management
  To ensure the correct and repeatable behavior of the tools, the environment must be controlled. This chapter explains how VOV supports multiple reusable environments.
- Execute Jobs From the Command Line
- Flowbuilding
  The trace is built using a combination of techniques.
- Flow Description Language (FDL)
- Tool Integration
- Integrate Difficult Tools
- Runtime Change Propagation Control
  The patented technique of Runtime Change Propagation Control (RCPC) provides the ability to stop the propagation of insignificant changes through the flow.
- Flow Library
  FlowTracer captures your design in design flows described by Flow.tcl files. The Flow Library is meant to help users locate and deploy instances of packaged flows bound to their specific design data.
- Files, Equivalences, Exclusions
  The files used in a project reside in one or more directories spread all around your filesystems. Each logical name defined in the equiv.tcl file implicitly declares the root of a workspace. You can browse the workspaces using the browser interface.
- Makefile Conversion
- Advanced Tasker Topics
- Resource Management
  The Resource Map Set represents the collection of resource maps that have been assigned to a project and the constraints associated with such resources.
- CGI Interface
- Events
  Every change in the trace is recorded as an event, which is then sent to all clients that subscribe to them.
- Miscellaneous

View All Altair Accelerator Help

CGI Interface

Webpages in the Altair Accelerator programs are typical produced using .cgi files ("Common Gateway Interface").

The .cgi files reside in 4 specific locations:

$VOV_PROJECT_NAME.swd/cgi (with respect to the server working directory)
./cgi (with respect to the server working directory)
$VOVDIR/local/cgi
$VOVDIR/etc/cgi

The scripts are usually Tcl and are you can find a list at /cgi/listcgi.cgi. The scripts are executed by a vovserver subprocess, use the current working directory, and use the environment of the server.

If no script is found, a simple error page is reported. To get a list of all available CGI scripts, click ${VOVDIR}/etc/cgi/list.html.

In a CGI URL you can specify the option timeout=N where N is the time in seconds the server allows for a CGI script to complete. The default for N is 120 (2 minutes). Example:

http://host:port/cgi/listcgi.cgi?timeout=600

Another commonly used option is redirect=newurl which tells the server to produce a page and then redirect automatically to the new URL. For example:

http://host:portwelcome?redirect=/project