072 split job python pool

import os
import shutil
import sys
import subprocess
import signal
from multiprocessing import Pool

def start_vivado(blockID, start, stop):
    print("Running instance :" + str(blockID))
    subprocess.check_call(
        "${XRAY_VIVADO} -mode batch -source $FUZDIR/job.tcl -tclargs " +
        str(blockID) + " " + str(start) + " " + str(stop),
        shell=True)

def get_nb_pips():
    print("Fetching nb pips")
    subprocess.check_call(
        "${XRAY_VIVADO} -mode batch -source $FUZDIR/get_pipscount.tcl",
        shell=True)
    countfile = open("nb_pips.txt", "r")
    return int(countfile.readline())

def main(argv):
    nbBlocks = 64
    nbParBlock = 4

    pipscount = get_nb_pips()
    blocksize = pipscount / nbBlocks

    if not os.path.exists("wires"):
        os.mkdir("wires")

    print(
        "Pips Count: " + str(pipscount) + " - Number of blocks: " +
        str(nbBlocks) + " - Parallel blocks: " + str(nbParBlock))

    blockId = range(0, nbBlocks)
    startI = range(0, pipscount, blocksize)
    stopI = range(blocksize, pipscount + 1, blocksize)

    with Pool(processes=nbParBlock) as pool:
        pool.map(start_vivado, blockId, startI, stopI)