Any Mathematical Libraries for Statistical Calculation for Code Composer Studio

RIZUAN

Other Parts Discussed in Thread: OMAP-L137

Hi everyone,

I'm using OMAP-L137 and I really need any statistical library that can be used inside Code Composer Studio. I need to perform eigenvector/eigenvalue and covariance matrix calculation. For covariance matrix calculation, I need to calculate for more than 200 elements and it is seriously slow by calculating it manually.

I've found ALGLIB library for use in C/C++ (eg. Visual C++) and it has increased the covariance matrix calculation from 5-6 minutes to just a few seconds in Visual C++. I couldn't get the library compile in Code Composer Studio. If anyone know how to perform these in Code Composer Studio, please reply me. I don't think these operations are available inside the math.h

Many thanks,

Rizuan

over 15 years ago

0 desouza over 15 years ago

TI__Guru**** 171639 points

Rizuan,

Math and signal processing software libraries are supported by the device teams, therefore I will move your post there so you can get more educated answers.

In the meantime, please take a look in the C674x DSPLIB page below, which contains several optimized math functions:

http://processors.wiki.ti.com/index.php/C674x_DSPLIB

To build a library from another provider you may hit several undefined or platform-dependent structures and symbols. The post below shows how to differentiate between the two using defines:

http://e2e.ti.com/support/development_tools/compiler/f/343/p/91489/318058.aspx#318058

Also, you may have issues if you are mixing C and C++ code. Check the post below with some tips:

http://e2e.ti.com/support/development_tools/compiler/f/343/p/72866/265301.aspx#265301

Hope this helps,

Rafael

0 RIZUAN over 13 years ago

Expert 1285 points

Hi everyone,

Since last few years, I've managed to use the ALGLIB mathematical library (at least for Eigen and covariance) inside both of OMAP-L137 and the multicore C6678 DSP. Anyone who is interested can try to find my posts in the ALGLIB forum in order to compile with TI compiler.

No obvious problem for the Eigen calculation but for the covariance, the mathematical library needs to cache the entire image (in my case hyperspectral image which is huge) in order to calculate the covariance matrix of each band. I've tried smaller size image and succeed.

I don't have strong reason why I picked ALGLIB but it is obviously easy to compile with TI compiler. Maybe others have different choices of mathematical library.

Kind regards,

Rizuan

0 Chris Jagielski over 12 years ago in reply to RIZUAN

Expert 1630 points

Thanks for the update Rizuan! I just read your ALGLIB forum post.

I am curious - are you using Windows or Linux?

When you say ALGLIB is "easy to compile with [the] TI compiler", how many days did it take you? (1 week, or more like 1 month?)

I greatly appreciate your help, thank you so much.

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Any Mathematical Libraries for Statistical Calculation for Code Composer Studio