Re: [boost] Accelerating algorithms with SIMD - Segmented iterators and alternatives

Subject: Re: [boost] Accelerating algorithms with SIMD - Segmented iterators and alternatives
From: DE (satan66613_at_[hidden])
Date: 2010-10-12 14:48:35

on 12.10.2010 at 22:35
 joel falcou wrote :
>> an idea immediately arises in my mind: what if it could be possible to
>> force a particular backend e.g. sse2 and make it propagate down the
>> call stack? this way you write generic code once and are able to
>> (pre)compile for (expected) platforms/technologies
>> then you just switch once depending on some circumstances and call the
>> appropriate instance (say sse2 forced)
>> at least this way you write the source once and possibly don't rewrite
>> it for every circumstance
>>
>>    
> It's like what we do already

cool
forgive me for repeating myself, do i understand correctly? will it be
something like the following?

  template</*...*/> void task(...);
  //somewhere
  if (supportsSSE2) task<SSE2>(/*...*/);
  else task<General>(/*...*/);

-- 
Pavel
P.S.
if you notice a grammar mistake or weird phrasing in my message
please point it out