Forum

jaygattis · Joined: Nov 15, 2007 Posts: 6

Since the new Cygnet software is based on BioEra would it be possible to do similar kinds of display in BioEra now? The reason I ask is that I'd like to have the capabilities of the Cygnet software but have it run on my Atlantis amplifier, rather than have to purchase a Neuroamp.

Thx,
Jay

jarek · Joined: Oct 22, 2007 Posts: 1075

Jay,

yes, Cygnet is pure BioEra design. This means that it contains only what is available in BioEra PRo. Therefore all of that (and more) is possible to do.

Jarek

jaygattis · Joined: Nov 15, 2007 Posts: 6

Does BioEra work with the Brainmaster Atlantis amplifier?

jarek · Joined: Oct 22, 2007 Posts: 1075

No, BioEra can be used at this moment only with older (before version 2.0) Brainmaster devices.

jaygattis · Joined: Nov 15, 2007 Posts: 6

Does that 'at the moment' mean there may be a driver for Brainmaster Atlantis forthcoming next year?

Is there no likelihood of a Procomp driver either? Are there any BioEra developers in the Los Angeles area?

wjcroft · Joined: Jul 30, 2008 Posts: 15

Jarek, hi.

I see on http://eeginfo.com/knowledgebase/entry/52/246/ that Cygnet only requires a 1.6 GHz machine to run adequately. Does that mean that response time and smoothness on a 1.6 GHz machine is \"as good as\" on say a 2.5 GHz dual core?

If I'm seeing decent performance with Bioexplorer on the 1.6 GHz machine, but sometimes occasional jerkiness in videos or animations -- doesnt that mean that BioEra is going to realistically need more horsepower since Java apps are inherently slower than C++?

Can you also explain how BioEra handles Java garbage collection issues without inducing pauses or delays? Some older Java animation apps I saw running on a 2.5 GHz single core machine had noticable pauses during garbage collections. Something that C++ avoids.

--William Croft

wjcroft · Joined: Jul 30, 2008 Posts: 15

Hmm, tried to edit my last post to add something, but got some obscure Java error from your forum software (database error)...

I meant to say my 1.6 GHz machine is only single core. The Cygnet spec is for 1.6 GHz DUAL core. So my guess is that dual core comes in handy for things like garbage collection and so forth. And that a single core machine is not going to be able to offer the kind of performance you need for a Java app. Likely.

Dual core probably also allows handling peak loads better and might avoid jerkiness in response times.

jarek · Joined: Oct 22, 2007 Posts: 1075

William,

I can't really answer questions about requirements for Cygnet because that is up to EEGInfo to determine, they built the designs and tested them, so the information you found in their knowledge base is probably the most accurate.

But I can comment about BioEra and java.

> doesnt that mean that BioEra is going to realistically need more
> horsepower since Java apps are inherently slower than C++

Definitely not. The \"inherently slower\" statement is simply not true. Java used to be slow 10 years ago (before version 1.4), but current JIT compilers optimizations makes it comparable or in many cases faster then C++. I verified that myself, but there are also many external links about it. Besides, much more important then development language is how the software has been designed and developed. BioEra has been optimized for the best processing performance.

Feel free to try it and see if you notice any pauses or anything like that. Single core processor is perfectly fine for the example BioEra designs.

FYI. BioEra also can run on PDA (unofficially), which is hundreds if not thousands times slower then PC. Design has to be simpler then on PC, but it works smoothly.

Jarek

jaygattis · Joined: Nov 15, 2007 Posts: 6

http://www.infoworld.com/article/08/04/24/Sun-continues-pursuit-of-Java-for-iPhone_1.html

Not sure how you'd get hooked up to electrodes and thus a signal, but it's a cool idea.

-Jay

wjcroft · Joined: Jul 30, 2008 Posts: 15

Jarek, thanks. You're right, there have been a lot of performance comparisons done. Wikipedia has a good summary: http://en.wikipedia.org/wiki/Java_performance

--William