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VOV Subsystem Administrator Guide
This manual provides information about managing a VOV project, including starting the server and connecting computing resources such as computers and licenses.
Tasker Policies
Start a Remote UNIX TASKER Details
On UNIX, the script vovtaskerstartup is used to start a tasker on a remote machine.

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View new features for VOV Subsystem 2025.1.2.
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Discover the workspace, licensing and installation, and training.
VOV Subsystem Tutorials
Discover VOV Subsystem functionality with interactive tutorials.
VOV Subsystem Administrator Guide
This manual provides information about managing a VOV project, including starting the server and connecting computing resources such as computers and licenses.
- Client/Server Architecture
  All of Altair Accelerator's products are based on a client/server architecture to support concurrent activities, team coordination, distributed data management, and distributed processing. The program vovserver runs in the background as a service to implement the main product features. It is the server.
- VOV Projects
  A "project" is a named collection of jobs, together with all the files that are used and produced by those jobs. The contents of VOV projects can be custom organized.
- VOV Registry
  The VOV Registry contains the list of all projects known to an installation of Altair Accelerator software. The registry is used by the vovproject command, and stores metadata such as the host machine and port number of a project.
- Get Started
- Start and Configure the Server
- Connect to a Project
- Stop the Server
- Recovery and Redundancy
- 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.
- Taskers
  A tasker is a VOV client that provides computing resources, specifically CPU cycles, to the vovserver.
- Tasker Policies
  - Tasker Reservations
  - Tasker Owner
    The program vovtaskerowner gives the owner of a machine the control on the tasker running on such machine.
  - Taskers: Mixed Windows NT and UNIX Environment
    It is common to run VOV in a mixed network of UNIX and Windows NT workstations. Following is a set of guidelines to facilitate the deployment in such a network.
  - Start a Remote UNIX TASKER Details
    On UNIX, the script vovtaskerstartup is used to start a tasker on a remote machine.
  - Stop Taskers
    When you no longer need a tasker that you started manually and that is running in the foreground, stop it with Ctrl-C.
  - Taskers Running as Root: Security Implications
  - vtk_job_control
    From Tcl, you can control both the taskers and the jobs running on the remote taskers with the procedure vtk_job_control.
- Interfaces to Accelerator, SGE, LSF, and Others
  FlowTracer can be used also as a front end to an existing batch processing system (BPS), for example, Accelerator, LSF, SGE, SGEEE, etc.
- Advanced Tasker Topics
- Resource Management
  Altair Accelerator includes a subsystem for managing computing resources. This allows the design team to factor in various constraints regarding hardware and software resources, as well as site policy constraints.
- IT Administrator Topics
VOV Subsystem Reference Guide
EDA Tool Integration Guide
This document is a collection of techniques that have proven to be useful when applying FlowTracer in Electronic Design Automation.

View All Altair Accelerator Help

Start a Remote UNIX TASKER Details

On UNIX, the script vovtaskerstartup is used to start a tasker on a remote machine.

This script ensures that the tasker runs in a valid environment by sourcing the following scripts:

$VOVDIR/local/scripts/vovtaskerstartup.aux, if available, to perform site specific initialization:

# Example of $VOVDIR/local/scripts/vovtaskerstartup.aux
echo "This is vovtaskerstartup.aux on `uname -n`"
switch ( $VOVARCH ) 
 case "linux*": 
   unlimit openfiles 
   breaksw
 default:
endsw

$VOVDIR/etc/std.vov.aliases, to define all standard aliases (for example, ves)
setup.tcl in the server configuration directory to initialize the project environment.

If the -view option is used, the script also starts the tasker in the given ClearCase view.

The -descriptors option triggers a check to ensure the host has at least as many descriptors as vovserver, which ensures it can operate at full capacity in the event of failover. It also checks that the server_election directory is empty.

Note: For this function to work, the -failover option must be used with vtk_tasker_define. For more information, refer to vtk_tasker_define.