1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
#!/usr/bin/env python
'''
Created on Aug 23, 2014
@author: tung
'''
import sys, os, time, multiprocessing, optparse
import subprocess, logging, datetime
def cpu_count():
''' Returns the number of CPUs in the system
'''
num = 1
if sys.platform == 'win32':
try:
num = int(os.environ['NUMBER_OF_PROCESSORS'])
except (ValueError, KeyError):
pass
elif sys.platform == 'darwin':
try:
num = int(os.popen('sysctl -n hw.ncpu').read())
except ValueError:
pass
else:
try:
num = os.sysconf('SC_NPROCESSORS_ONLN')
except (ValueError, OSError, AttributeError):
pass
return num
def exec_commands(cmds, name, num_cpus):
''' Exec commands in parallel in multiple process
(as much as we have CPU)
'''
if not cmds: return # empty list
def done(p):
return p.poll() is not None
def success(p):
return p.returncode == 0
def fail():
sys.exit(1)
# max_task = cpu_count()
logger = logging.getLogger(name)
logger.setLevel(logging.DEBUG)
my_time = datetime.datetime.now()
handler = logging.FileHandler(name + "." + str(my_time.year) + str(my_time.month) + str(my_time.day) +
str(my_time.hour) + str(my_time.minute) + str(my_time.second) + ".log")
handler.setLevel(logging.DEBUG)
formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
handler.setFormatter(formatter)
logger.addHandler(handler)
max_task = multiprocessing.cpu_count()
logger.info("Available CPUs = " + str(max_task) + " / using " + str(num_cpus) + " CPUs")
logger.info("Number of jobs = " + str(len(cmds)))
processes = []
while True:
while cmds and len(processes) < num_cpus:
task = cmds.pop(0)
#print subprocess.list2cmdline(task)
task_id, cmd = task.split(" ", 1)
logger.info("Executing job " + task_id + ": " + cmd.strip())
#print cmd
task_output = open(task_id + ".out", "w")
time_cmd = "time " + cmd
processes.append([subprocess.Popen(time_cmd, stderr=subprocess.STDOUT, stdout=task_output, shell=True), task_id])
for p in processes:
if done(p[0]):
if success(p[0]):
#print "Process with ID = ", p.pid, " has finished"
#print "number of processes before removal: ", len(processes)
logger.info("Job " + p[1] + " has finished")
processes.remove(p)
#print "number of processes after removal: ", len(processes)
else:
logger.info("Job " + p[1] + " finished with ERROR CODE " + str(p[0].returncode))
processes.remove(p)
if not processes and not cmds:
break
else:
time.sleep(5)
if __name__ == '__main__':
max_cores = multiprocessing.cpu_count()
usage = "USAGE: %prog [options]"
parser = optparse.OptionParser(usage=usage)
parser.add_option('-f','--cmd', dest="cmd", help='File containing all commands')
parser.add_option('-c','--cpu', dest="cpu", help='Number of CPU to use', default=max_cores)
(options, args) = parser.parse_args()
if len(sys.argv) == 1:
parser.print_help()
exit(0)
jobs = open(options.cmd, "r").readlines()
exec_commands(jobs, options.cmd, int(options.cpu))
|
