Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl: the Markov chain saw
 
PerlMonks  

Re^2: Perl PDL slower than python numpy (Updated2)

by etj (Deacon)
on Apr 19, 2022 at 22:55 UTC ( [id://11143111]=note: print w/replies, xml ) Need Help??


in reply to Re: Perl PDL slower than python numpy (Updated2)
in thread Perl PDL slower than python numpy

2022 updates to this excellent note:
  • with 2.058, zeroes was optimised so that the ndarray is initialised using memset (see https://github.com/PDLPorters/pdl/issues/274 for discussion and measurements).
  • with 2.077, the PDL shells have a with_time { code... } function to make this sort of measurement easier.
Observation: the first command of the above snippet is slightly quicker than the rest; this may be because the following ones, in assigning to e.g. $y, will trigger the destruction of the previous contents of that variable, which is likely to take some time.

Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Node Status?
node history
Node Type: note [id://11143111]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this?Last hourOther CB clients
Other Users?
Others rifling through the Monastery: (2)
As of 2024-05-26 14:38 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found