Floating point performance

Technical discussions around xCORE processors (e.g. xcore-200 & xcore.ai).
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Piker
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Joined: Fri Jan 03, 2014 9:45 pm

Floating point performance

Post by Piker »

Hi I am exploring the possibilities of Xcore vs STM32F4xx.
The STM has FPU which dramatically improves float performance.
I am not seeing mention of FPU on Xcore so assuming there is none.
If it takes 8 times longer to do float calculations using standard C
functions than STM FPU is there going to be any performance benefit
using 8 cores?

The lack of ADC channels ( max 8 on analogue parts)and small memory on XMOS devices
makes projects more complicated so just trying to find out if the benefits outweigh
The hassles.


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