G'day gsat,

Welcome to the monastery.

Is this the sort of thing you were after:

#!/usr/bin/env perl

use strict;
use warnings;
use autodie;
use threads;
use threads::shared;

use Storable;

my $storable_file = './pm_1078249_stored_hash';

{
    my $hoh_to_store = { A => { B => 2, C => 3 }, D => { E => 5, F => 
+6 } };
    store $hoh_to_store => $storable_file;
} 

my @threads;
my %hohoh :shared;

for (1 .. 3) {
    push @threads, threads->create(sub {
        $hohoh{threads->tid} = shared_clone(retrieve $storable_file);
    });
} 

$_->join for @threads;

# Test result
use Data::Dumper;
print Dumper \%hohoh;

# My housekeeping
unlink $storable_file;
[download]

Output:

$VAR1 = {
          '1' => {
                   'D' => {
                            'E' => 5,
                            'F' => 6
                          },
                   'A' => {
                            'B' => 2,
                            'C' => 3
                          }
                 },
          '2' => {
                   'D' => {
                            'E' => 5,
                            'F' => 6
                          },
                   'A' => {
                            'B' => 2,
                            'C' => 3
                          }
                 },
          '3' => {
                   'A' => {
                            'B' => 2,
                            'C' => 3
                          },
                   'D' => {
                            'E' => 5,
                            'F' => 6
                          }
                 }
        };
[download]

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