SciTools.com - Customer Support

Frequently Asked Questions

Understand

1. What are the system requirements for Understand?
2. How do I reset Understand to the default settings?
3. Can I run Understand on a 64bit OS?
4. Can I integrate Understand with my Version Control System?
5. Tips for Maximizing Performance on a large code base
6. How does Understand find C++ include files?
7. What variants of C/C++ does Understand support?
8. How do I get Understand to work with Managed C++ Code?
9. Does Understand follow C/C++ function calls via pointers?
10. Can I use Understand to verify DO-178B compliance (Avionics)
11. Can I generate a graph for an entire project?
12. Why can't I fully edit graphs exported to Visio?
13. Why don't metrics add up?
14. How do I get Understand to ignore C/C++ #ifdefs and parse all of the code?
15. How does Understand compare with other software tools?
16. Understand is drawing slow when I export my X11 Display.

Licensing

1. How do I transfer my Understand license to a new machine?
2. How can I free up an Understand license?
3. How can I see who has a floating license checked-out?
4. Running License Manager on Windows without using services
5. How can I track license usage?

Understand

1. What are the system requirements for Understand?

Understand takes about 100-200MB of installation space, depending on which OS it is installed on and will run on Windows (XP SP3 and later), Linux, Solaris (Sparc and Intel) and OSX(Intel). It will run on just about any system. However, for larger code bases the more RAM the better. We recommend 1GB / Million lines of code, it will run on less, but it is much slower.

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2. How do I reset Understand to the default settings?

You can reset Understand to its initial Settings by exiting the program and then renaming or deleting the configuration file. On Windows you may have to enable “Show Hidden Files and Folders” first. The configuration file can be found in the following location:

Build 512 and Later

• Windows 2000/XP - C:\Documents and Settings\USERID\Application Data\SciTools\Understand.ini
• Windows Vista/7 - C:\Users\USERID\AppData\Roaming\SciTools\Understand.ini
• Linux/Unix - ~/.config/SciTools/Understand.conf
• Mac OS X - ~/Library/Preferences/com.scitools.Understand.plist

Build 511 and Earlier

• Windows 2000/XP - C:\Documents and Settings\USERID\Application Data\Scientific Toolworks, Inc\Understand.ini
• Windows Vista/7 - C:\Users\USERID\AppData\Roaming\Scientific Toolworks, Inc\Understand.ini
• Linux/Unix - ~/.config/Scientific Toolworks, Inc./Understand.conf
• Mac OS X - ~/Library/Preferences/com.scitools.Understand.plist

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3. Can I run Understand on a 64bit OS?

Yes you can. Most platforms have a 64bit specific build, but the 32bit Understand should run fine on all 64bit Operating Systems as well.

On Linux/Unix you will probably need to install your system's 32-bit compatibility libraries.

On Debian based systems (including Ubuntu) the IA32 package will provide everything you need. The command sudo apt-get install ia-32-libs should be all you need to run. Then Understand should launch with no problems.

I don't have a Redhat/Fedora 64bit machine to test this on, but from what I've read the following commands will install the necessary libraries.

# up2date -i "@Compatibility Arch Development Support"
# up2date -i "@Compatibility Arch Support"

I actually couldn't find much information about running 32bit apps on Fedora or Redhat other than this forum post. If you know or find a better way to do this, let me know and I will update these instructions.

KevinG