I'm trying to optimize the following program:
http://github.com/feuerbach/particles/blob/303c8a17c9b732e22457b5409bdce4b7520be94a/run.hs
Of course general suggestions are welcome (BTW I'm going to give a try
to vector), but currently I'm concerned with two questions:
1. Heavy allocations in 'dist
* Roman Cheplyaka [2010-06-17 12:40:59+0300]
> I'm trying to optimize the following program:
> http://github.com/feuerbach/particles/blob/303c8a17c9b732e22457b5409bdce4b7520be94a/run.hs
>
> Of course general suggestions are welcome (BTW I'm going to give a try
> to vector), but currently I'm conc
On Thursday 17 June 2010 11:43:09, Roman Cheplyaka wrote:
> * Roman Cheplyaka [2010-06-17 12:40:59+0300]
>
> > I'm trying to optimize the following program:
> > http://github.com/feuerbach/particles/blob/303c8a17c9b732e22457b5409bd
> >ce4b7520be94a/run.hs
> >
> > Of course general suggestions are
On 17.06.10 12:40, Roman Cheplyaka wrote:
> From reading core I got the impression that everything is strict&
unboxed. Perhaps this is related to creating some closures? How to get
rid of those allocations?
Yes, "distance" creates a closure of type @Double -> Double# -> Double@
which is obvi
* Daniel Fischer [2010-06-17 16:27:01+0200]
> On Thursday 17 June 2010 11:43:09, Roman Cheplyaka wrote:
> > * Roman Cheplyaka [2010-06-17 12:40:59+0300]
> >
> > > I'm trying to optimize the following program:
> > > http://github.com/feuerbach/particles/blob/303c8a17c9b732e22457b5409bd
> > >ce4b75
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On Jun 17, 2010, at 12:35 , Roman Cheplyaka wrote:
That's exactly what I'm asking about. 'abs' in C does not require any
allocations, does it? So why does it require any allocations in
Haskell,
assuming we've got no lazyness, typeclass indirection
On 17.06.10 19:12, Roman Beslik wrote:
On 17.06.10 12:40, Roman Cheplyaka wrote:
> From reading core I got the impression that everything is strict&
unboxed. Perhaps this is related to creating some closures? How to get
rid of those allocations?
Yes, "distance" creates a closure of type @Double
