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Ublas : |
Subject: Re: [ublas] poll: what's your uBLAS I/O usage ?
From: Andrea Cassioli (cassioliandre_at_[hidden])
Date: 2010-05-28 09:46:34
On Fri, May 28, 2010 at 3:30 PM, David Bellot <david.bellot_at_[hidden]> wrote:
> Questions:
>
> - what is your normal use of uBLAS IO function ?
Usually I use it for debugging purpose, so it would be nice a more
readable format. For data storing I prefere to write data in a more
compatible format, easier to be manipulate.
> - would you prefer more flexibility with boost::serialization ?
> - would you like to be able to load/save from/to other formats (matlab,
> etc...) ?
I'm not ued to interface my code with matlab, but standard
comm-separated (or even better blank space) output would be nice. For
instance, a plain format like:
0 0 0 0 0 0 0 0 0 0 0
for a vector would be easier if shell commands must be used (as cut,
grep, paste and so on...).
> - would you like to have more pretty printings ?
the matrix number of non zeros could be interesting for sparse matrices.
> - would you like to have dense optimized-to-the-extreme-very-compressed
> binary format ?
> - more suggestions ?
maybe a set of modifiers, as the std::ios, could be used to obtain a
variable print level: for instance a standard matrix printing might
looks like
matrix[2,2]
but say cout<<ublas::print_details(medium)<<A;
matrix[2,2]:
0 0
0 0
or even more
cout<<ublas::print_details(high)<<A;
> - what is your normal use of uBLAS IO function ?
Usually I use it for debugging purpose, so it would be nice a more
readable format. For data storing I prefere to write data in a more
compatible format, easier to be manipulate.
> - would you prefer more flexibility with boost::serialization ?
> - would you like to be able to load/save from/to other formats (matlab,
> etc...) ?
I'm not ued to interface my code with matlab, but standard
comm-separated (or even better blank space) output would be nice. For
instance, a plain format like:
0 0 0 0 0 0 0 0 0 0 0
for a vector would be easier if shell commands must be used (as cut,
grep, paste and so on...).
> - would you like to have more pretty printings ?
the matrix number of non zeros could be interesting for sparse matrices.
> - would you like to have dense optimized-to-the-extreme-very-compressed
> binary format ?
> - more suggestions ?
maybe a set of modifiers, as the std::ios, could be used to obtain a
variable print level: for instance a standard matrix printing might
looks like
0 0
0 0
but say cout<<ublas::print_details(medium)<<A;
matrix_type [2,2]:
0 0
0 0
and so on.
>
> Cheers,
> David
>
Thanks for your job David!
Cheers, Andrea
> --
> David Bellot, PhD
> david.bellot_at_[hidden]
> http://david.bellot.free.fr
>
>
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> ublas_at_[hidden]
> http://lists.boost.org/mailman/listinfo.cgi/ublas
> Sent to: cassioliandre_at_[hidden]
>
-- Andrea Cassioli