semaphored example as well

modules/Bio/EnsEMBL/Hive/PipeConfig/SemaLongMult_conf.pm

+## Configuration file for the *semaphored* long multiplication pipeline example
+
+package Bio::EnsEMBL::Hive::PipeConfig::SemaLongMult_conf;
+
+use strict;
+use warnings;
+use base ('Bio::EnsEMBL::Hive::PipeConfig::HiveGeneric_conf');
+
+sub default_options {
+    my ($self) = @_;
+    return {
+        'ensembl_cvs_root_dir' => $ENV{'HOME'}.'/work',     # some Compara developers might prefer $ENV{'HOME'}.'/ensembl_main'
+
+        'pipeline_db' => {
+            -host   => 'compara3',
+            -port   => 3306,
+            -user   => 'ensadmin',
+            -dbname => $ENV{USER}.'_sema_long_mult_pipeline',
+        },
+
+        'pipeline_name' => 'slmult',
+    };
+}
+
+sub pipeline_create_commands {
+    my ($self) = @_;
+    return [
+        @{$self->SUPER::pipeline_create_commands},  # inheriting database and hive table creation
+
+            # additional tables needed for long multiplication pipeline's operation:
+        'mysql '.$self->dbconn_2_mysql('pipeline_db', 1)." -e 'CREATE TABLE intermediate_result (a_multiplier char(40) NOT NULL, digit tinyint NOT NULL, result char(41) NOT NULL, PRIMARY KEY (a_multiplier, digit))'",
+        'mysql '.$self->dbconn_2_mysql('pipeline_db', 1)." -e 'CREATE TABLE final_result (a_multiplier char(40) NOT NULL, b_multiplier char(40) NOT NULL, result char(80) NOT NULL, PRIMARY KEY (a_multiplier, b_multiplier))'",
+    ];
+}
+
+sub pipeline_analyses {
+    my ($self) = @_;
+    return [
+        {   -logic_name => 'start',
+            -module     => 'Bio::EnsEMBL::Hive::RunnableDB::LongMult::SemaStart',
+            -parameters => {},
+            -input_ids => [
+                { 'a_multiplier' => '9650516169', 'b_multiplier' => '327358788' },
+                { 'a_multiplier' => '327358788', 'b_multiplier' => '9650516169' },
+            ],
+            -flow_into => {
+                2 => [ 'part_multiply' ],   # will create a fan of jobs
+                1 => [ 'add_together'  ],   # will create a funnel job to wait for the fan to complete and add the results
+            },
+        },
+
+        {   -logic_name    => 'part_multiply',
+            -module        => 'Bio::EnsEMBL::Hive::RunnableDB::LongMult::PartMultiply',
+            -parameters    => {},
+            -input_ids     => [
+                # (jobs for this analysis will be flown_into via branch-2 from 'start' jobs above)
+            ],
+        },
+        
+        {   -logic_name => 'add_together',
+            -module     => 'Bio::EnsEMBL::Hive::RunnableDB::LongMult::AddTogether',
+            -parameters => {},
+            -input_ids => [
+                # (jobs for this analysis will be flown_into via branch-1 from 'start' jobs above)
+            ],
+            # jobs in this analyses are semaphored, so no need to '-wait_for'
+        },
+    ];
+}
+
+1;
+