> Am 18.10.2014 um 09:13 schrieb Fabrice Couvreur <fabrice1.couvreur@gmail.com>:
> 
> Hi Wolfgang, 
> How to reduce the size of the float ? 
> Best regards, 
> Fabrice
> 
> \usemodule[algorithmic]
> \definefloat[algorithm][algorithms] 
> 
> 
> \definecolor[H1prime][c=0.50, m=0.00, y=1.00, k=0.00]
> \definecolor[H4][c=0.07, m=0.00, y=0.15, k=0.00]
> 
> \setupfloat
>   [algorithm]
>   [background=color,
>    frame=on,
>    framecolor=H1prime,
>    backgroundcolor=H4,
>    width=0.5\textwidth]

You have to put a framedtext environment around the algorithmic environment, you can do this by replacing \setupfloat with \setupalgorithmic.

\setupalgorithmic
  [algorithmic]
  [before={\startframedtext[width=0.6\textwidth,background=color,backgroundcolor=H4,framecolor=H1prime]},
    after={\stopframedtext}]

Wolfgang