Licensing

Licensing for Zencrack is available on a license server or nodelocked basis:

• License server
  The license server is installed on a specified computer. The Zencrack program may be installed and executed on any computer that has access to the license server across a network. At run-time the Zencrack job attempts to check out license tokens from the license server and the job runs provided that tokens are available. One token is required to execute a Zencrack Standard job, three tokens are required to execute a Zencrack Professional job. If insufficient tokens are available because another job is running, the job can be queued until tokens are available. The total number of available license tokens controls the number of concurrent jobs that can be executed.

• Nodelocked (non-commercial and evaluation licences only)
  The program will only execute on the specified computer listed in the license file. Either Zencrack Standard or Zencrack Professional must be specified.

For either method, a license file must be installed to run Zencrack. This file is sent to users via e-mail. In order to create a license file we require the following information:

• Company name or University name and department
• Address
• Contact telephone and fax numbers
• The required finite element interface(s) for the installation
• For nodelocked licenses: The required version of Zencrack - Standard or Professional
• For license server installations: The total number of license tokens - one token is required to run a Standard job and three tokens are required to run a Professional job
• Machine identification details of the nodelocked machine or the license server machine

In order to assist in the collection of the above data, a program can be download below. This program should be run on the target Zencrack machine (the nodelocked machine or the license server). The program generates a file called zencrack.txt in the location in which the program is saved. This file should be sent to Zentech.

In the case of Windows laptop PCs which may have multiple network cards, the program should be run with the laptop configured in the way that it will be used with Zencrack. Note that a laptop may shutdown the network adapter to conserve power when running off a battery. You should configure your system to prevent this as per the system documentation.

Full details of the supported platforms is available here.

PC - Windows (x86-32 and x86-64)

• Save the file machine_id.zip (186Kb) in a folder on the target machine
• Extract the executable machine_id.exe
• Double-click the executable to run it
• Answer the questions to generate the zencrack.txt file

PC - Linux (x86-64)

• Save the file machine_id.exe.gz (205Kb) in a directory on the target machine
• Extract the executable file machine_id.exe by using "gzip -d machine_id.exe.gz"
• Run the executable using ./machine_id.exe
• Answer the questions to generate the zencrack.txt file