Utils in HepLib

There are several useful utils installed to the directory <INSTALL PATH>/bin.

• heplib++ - HepLib g++

  The basic uage:

  heplib++ -o prog prog.cpp
  

• sc - Server / Clients

  Genernal information of sc from sc --help

  A simple Server/Client, bypass with [i].log
  Supported Options:
    --total: total elements @server.
    --port: server port @server/@client.
    --server: server ip or hostname @client.
    --command: command with [i] replaced @client.
    --round: round to be cycled @server.
  

  One can run the following command on the master node

  sc --total 100 --port 1234
  

  One will get the message as follows:

  Started @ 2020-11-17 16:05:27
    Server Port: 1234
    Server: 0 / 99 @ 16:05:2
  

  The server is ready to dispatch item (from 0 to 99) to the connected slave node.

  Now one can run the following command on each slave node

  sc --server master-node-host --port 1234 --command "echo [i]"
  

  one will see the slave node will repleatly get the item from the server, and exceute the command echo [i], note that [i] will replaced by the actual index (form 0 to 99).

  Note that to prevent the command to run multiple times on the same [i], one can generate a [i].log from the command, e.g.,

  sc --server master-node-host --port 1234 --command "echo [i] > [i].log"
  

  sc will skip the item [i] when there is a file named [i].log.