Analytica User FAQs/Application Issues

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Memory Issues

See:

Is there a 64-bit version of Analytica?

All editions of Analytica (except Free 101, but including ADE) are available in 32 and 64-bit versions. You need a 64-bit version of Microsoft Windows Operating System to run Analytica 64-bit version, usual in most newer Windows computers. You can download installers for 32 and 64-bit versions from [1]

Hardware

I'm purchasing a new computer. What hardware is recommended for best Analytica performance?

  • A 64-bit processor (almost all are nowadays)
  • Windows 64-bit (XP, Vista, 7, 8, 10, or Server 2008, 2012, 2016 or later).
  • The most RAM you can afford. RAM is the most important determiner of performance in Analytica, more important than the choice of processor. Many power-Analytica users are now getting 16GB of RAM or more.
  • DDR3 RAM is preferred over DDR2 RAM -- it is roughly twice as fast.
  • A large screen (in pixel count), or multiple monitors, is very helpful when developing models.
  • A solid-state drive for your page file can also speed things up substantially with extremely large models that exceed available RAM. However, do not trade-off RAM for a SSD -- RAM is far more important.
  • Number of processors does not have as large an impact on performance as these other factors. More processors helps a little in Analytica 5.0 and above, but processor speed is more important than processor count. The Gurobi add-on optimization engine benefits quite a bit from more processors while solving integer LPs.

The above is particularly recommended for Analytica 64-bit.

If you will be running only Analytica 32-bit, then we recommend at least 6GB of RAM, but it beyond 6GB the extra is not as important.

Basis Application Issues

Windows in Analytica open slowly in Windows Vista

Resolved in Analytica 4.1.0

When you open a window inside Analytica, such as an object window, diagram, etc., a small animation occurs that makes it appear that the window is expanding from a point. Normally this animation flashes by in less than 1/10 of a second. However, when you have the Windows Aero color scheme selected in Windows Vista, this small animation runs in slow motion and takes several seconds.

Other aspects of Analytica's speed are not impacted. For example, evaluation of models is not slower.

To avoid this problem in Windows Vista, simply change the color scheme to any of the color schemes other than Windows Aero. To change the color scheme, follow these steps:

  • Right click on the desktop, select Personalize (This jumps to the Control Panel → Personalization dialog).
  • Click on Window Color and Appearance
  • Select Open classic appearance properties for more color options
  • In the Color Scheme list, select anything other than Windows Aero.

Reporting Bugs

How do I submit a bug report?

If you find a bug, we want to know about it so we can fix it in later releases. So please, do tell us.

When you submit a bug report, it is important that we can reproduce the problem. In most cases, it is best of you send us a copy of your model, a description of the problem, and a set of instructions for how to reproduce the problem. Send this information to support@lumina.com. Please also indicate if you need a work-around or not -- if you need a workaround, we usually try to find you one quickly, but if you don't, letting us know will save us time. We may get back to you with further questions if we are unable to reproduce the problem.

Can I see a list of known bugs?

While we maintain a very large and comprehensive bugbase, we do consider the information in that database proprietary. For some of the more serious or common problems in the most current release, we will post information here. In the release notes for new releases, we will list some of the more significant or commonly encountered issues that were fixed, so if you're using an older release, consult those elsewhere on the Wiki.

Can I request enhancements to Analytica?

Please do. We value your input, and such input does have a substantial impact on your prioritizations.

To submit an enhancement request, send it to support@lumina.com.

We've had occasions where someone has an urgent enhancement, which they need in the near future, but which would not be at the top of our priority list for quite some time. In many cases, perhaps most, we find that these enhancements can actually be implemented within Analytica itself, using some of the more advanced features. Our consulting services can often be utilized if you need help in implementing those.

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