Hi monks I have a very big dictionary of phrases (millions of entries) and when I read it to hash I'm out of memory. I want to store it once in a local memory and every time I can use it efficiently as my dictionary. What modules do you recommend for : 1- tie it in the local memory, and 2- accessing it efficiently. I use this code to read my dictionary: 
sub read_dict{
my $file=shift;    
my %dict;
open( FILE, "<:encoding(utf5)", $file );
while (<FILE>)
{
   chomp;
   my ($p1, $p2) = split /\t/;
   chomp ($p1, $p2);
   push( @{$dict{$p1}}, $p2 );
   
}
close FILE;
return %dict;
}

[download]
Note that while I read it I run out of memory so I need to be able to read each and store instead of reading the whole dictionary. later I use this hash to look up for many many entries in my text. Thanks for your hints and code snippets in advance.

In reply to tying a hash from a big dictionary by Anonymous Monk

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, details, 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, summary, 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.