How to disable fork join or fork join_any after executed particular thread or process

[Subbi Reddy Manne]

How to disable join fork after executed particular thread or process

Requirement: Need to disable fork join after executing join_2 thread or process

Please help me in this 

module fork_join;
 
  initial begin
    
    $display("**********BEFORE FORK..JOIN**********");
    
    fork
      begin:join_1
        #1 $display($time,"\tThread A");
        #2  $display($time,"\tThread B");
      end
      begin: join_2
        #2 $display($time,"\tThread C");
        #3  $display($time,"\tThread D");
      end
      
      begin:join_3
        #5 $display($time,"\tThread E");
        #6  $display($time,"\tThread F");
      end
    join
    
    #7  $display($time,"\tThread G");
 
    $display("**********AFTER FORK..JOIN**********");
    
    $finish;
  end
  
endmodule

 

[David Black]

Read up on fork-join, fork-join_any, and fork-join_none. You can disable any labeled block or task. You can also kill processes if you know the process id.

Your "After fork" won't execute until ALL three processes within the join complete. You likely want fork-join_any or fork-join_none.

Also, you only have three threads/processes (the three labeled blocks). Your $displays inside those threads will execute sequentially.

[Subbi Reddy Manne]

Thank you, I got it