When I use python multiprocessing to open multiple octave displays a timeou

[fireAj]

source
import oct2py
import os
import sys
from multiprocessing import Process, Pool
import time
def yhmatrix(i):

octave = oct2py.Oct2Py()

octave.addpath("/root/weather/ecwmf_png")

str =octave.feval('/root/weather/ecwmf_png/micaps_matlab_exec.m',i)#,i

def error_callback(error):
print(f"Error info: {error}")

if name == 'main':

startTime = time.time()

pool = Pool(15)

for i in range(0,15):

 pool.apply_async(yhmatrix, args=(i, ), error_callback=error_callback)

pool.close()
pool.join()
endTime = time.time()
print ("time :", endTime - startTime)

Error info: Timeout exceeded.
<pexpect.pty_spawn.spawn object at 0x7f98e80423d0>
command: /root/yhMatrix/octave/bin/octave
args: [b'/root/yhMatrix/octave/bin/octave', b'--interactive', b'--quiet', b'--no-init-file']
buffer (last 100 chars): ''
before (last 100 chars): ''
after: <class 'pexpect.exceptions.TIMEOUT'>
match: None
match_index: None
exitstatus: None
flag_eof: False
pid: 434435
child_fd: 36
closed: False
timeout: 30
delimiter: <class 'pexpect.exceptions.EOF'>
logfile: None
logfile_read: None
logfile_send: None
maxread: 2000
ignorecase: False
searchwindowsize: None
delaybeforesend: 0.05
delayafterclose: 0.1
delayafterterminate: 0.1
searcher: searcher_re:
0: re.compile('octave.*>')

[fireAj]

That looks like Octave taking so long to start that the pexpect module managing communications with Octave exceeds the configured timeout for waiting for the Octave prompt