Beefy Boxes and Bandwidth Generously Provided by pair Networks
P is for Practical
 
PerlMonks  

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
Hi Mario,

thanks a lot for your comments and suggestions.

I did not expect such micro-optimizations to bring such a significant performance improvement, that's interesting. Especially replacing the division by 2 by a bit shift is the type of thing that I had stopped doing decades ago, when I figured that the C compiler I was using at the time was doing this type of optimization at least as well and often better than I was able to do. Good to be reminded that the optimizations you suggested can also be quite useful. Thank you.

Following this very interesting thread and your new thread on MCE::Flow + Caching via File::Map, I made a new blog post on the Collatz sequence, trying to summarize some of the findings: http://blogs.perl.org/users/laurent_r/2020/04/revisiting-the-collatz-sequence-pwc-54.html. I did not try to explain your demonstration using File::Map for caching with parallel processing (your other thread) because I'm not sure to fully understand everything and was afraid of mis-representing your work. People can follow the link and read your own words.

Thank you very much for your challenging ideas.


In reply to Re^3: Optimizing with Caching vs. Parallelizing (MCE::Map) by Laurent_R
in thread Optimizing with Caching vs. Parallelizing (MCE::Map) by 1nickt

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?
    Username:
    Password:

    What's my password?
    Create A New User
    Chatterbox?
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others exploiting the Monastery: (4)
    As of 2020-10-22 07:35 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?
      My favourite web site is:












      Results (225 votes). Check out past polls.

      Notices?