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
|
# Copyright (c) 2006-2025. The SimGrid Team. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the license (GNU LGPL) which comes with this package.
"""
This example demonstrates basic use of the task plugin.
We model the following graph:
exec1 -> comm -> exec2
exec1 and exec2 are execution tasks.
comm is a communication task.
"""
from argparse import ArgumentParser
import sys
from simgrid import Engine, Task, CommTask, ExecTask
def parse():
parser = ArgumentParser()
parser.add_argument(
'--platform',
type=str,
required=True,
help='path to the platform description'
)
return parser.parse_args()
def callback(t):
print(f'[{Engine.clock}] {t} finished ({t.get_count()})')
if __name__ == '__main__':
args = parse()
e = Engine(sys.argv)
e.load_platform(args.platform)
# Retrieve hosts
tremblay = e.host_by_name('Tremblay')
jupiter = e.host_by_name('Jupiter')
# Create tasks
exec1 = ExecTask.init("exec1", 1e9, tremblay)
exec2 = ExecTask.init("exec2", 1e9, jupiter)
comm = CommTask.init("comm", 1e7, tremblay, jupiter)
# Create the graph by defining dependencies between tasks
exec1.add_successor(comm)
comm.add_successor(exec2)
# Add a function to be called when tasks end for log purpose
Task.on_completion_cb(callback)
# Enqueue two firings for task exec1
exec1.enqueue_firings(2)
# runs the simulation
e.run()
|
