Re: Matrix or array operations library

[David Pirotte <david@altosw.be>]

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Hello,

> Is there some library, that enables high performance matrix operations
> or even n-dimensional array operations? I am thinking of something like
> NumPy in the Python ecosystem. I think NumPy in turn also uses some
> lower level thing to do what it does. I think OpenBLAS or MKL, depending
> on the architecture. I wonder if there is any wrapper around OpenBLAS
> for Guile or something similar.
> ...

There are quite a few libs you might look at before you start to code your own:

	https://notabug.org/lloda
		...
		guile-newra
		guile-ffi-cblas
		...
		guile-ploy
		...

	AIscm
	http://wedesoft.github.io/aiscm

I also wrote a set of n-dim array math ops (including matrix ops) for Guile-CV:

	https://www.gnu.org/software/guile-cv/
		the manual is available online, math and matrix ops are described in
		the 'Processing' section

	mentioning Guile-CV because images are just a collection of n-dim arrays.
	(see 'Image Structure and Accessors' in the manual).

	in Guile-CV, all (almost all) arrays are f32vectors - see (srfi srfi-4) in
	the Guile manual - math and matrix ops are written in C (but memory
	allocation entirely kept in scheme). multi channel ops are multi-threaded

	some of these math and matrix ops also work on s32 and f64 (undocumented so
	far): it would not take much to actually fully generalize all guile-cv math
	and matrix ops for the full set of (srfi srfi-4 ) types.

Cheers,
David




	


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