On Fri, Jul 9, 2010 at 11:24 AM, Judd Taylor <[email protected]>wrote:
> The truth is that doing anything on the extremes requires a programmer > be clever. PDL just allows you to do this better than Perl. > > Even the might Perl TIMTOWTDI runs out of ideas when it comes to > computing huge datasets like this. At the very minimum, PDL allowore > alternatives at being clever to make these things work quickly. > > For me personally, if I want something very simple that is guaranteed to > be very fast, I go immediately to PDL::PP and write a quick sub to do > this. You can spend 5 minutes using Inline PDL::PP to develop what > works, and then put the code in a library somewhere for future use. You > get code that's easier to maintain that way, IMO, as it doesn't need to > be as "clever" as the perl level PDL code. > > -Judd > Writing a quick sub using PDL::PP is fantastically simple - if you know what you're doing. This is why I wanted to have my first talk be on PDL::PP, not PLplot. But the masses spoke, and I focused on plotting instead. I work with datasets with thousands of elements, and I recently replaced two perl nested for-loops with an Inline::Pdlpp sub. The compute time went from a few seconds to seemingly instantaneous feedback. Unfortunately, there's no genlte introduction to using PDL::PP. David -- Sent via my carrier pigeon.
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