def release_taskset(wait=True, delay=None, num_tasks=None):
cmd = []
if wait:
cmd.append('-w')
if delay != None:
cmd.append('-d')
cmd.append(delay)
if num_tasks:
cmd.append('-f')
cmd.append(num_tasks)
return spawn('release_ts', cmd, path=LIBLITMUS)
def release_taskset(wait=True, delay=None, num_tasks=None):
cmd = []
if wait:
cmd.append('-w')
if delay != None:
cmd.append('-d')
cmd.append(delay)
if num_tasks:
cmd.append('-f')
cmd.append(num_tasks)
return spawn('release_ts', cmd,
path=LIBLITMUS)
def run_task(task, *args, **kargs):
(binary, args) = task_args(task, *args, **kargs)
return spawn(binary, args, path=EXPERIMENTS_DIR)
def run_tasks(tasks, sched):
procs = []
if sched == 'HIME':
task_id = 0
for task in tasks.getElementsByTagName("task"): # For each task
task_id += 1
task_path = ".task_input_hime_" + str(task_id)
try:
f = open(task_path, "w")
if not task.getAttribute("slices"):
wcet = float(task.getAttribute("wcet"))
period = int(task.getAttribute("period"))
cpu = int(task.getAttribute("cpu"))
f.write("%d %f %d 0 %d 0" % (task_id, wcet, period, cpu))
else:
wcet = float(task.getAttribute("wcet"))
period = int(task.getAttribute("period"))
first_cpu = int(task.getAttribute("cpu"))
slice_num = int(task.getAttribute("slices"))
f.write("%d %f %d 0 %d %d\n" %
(task_id, wcet, period, first_cpu, slice_num))
for slice in task.getElementsByTagName(
"slice"): # For each slice
slice_cpu = int(slice.getAttribute("cpu"))
slice_budget = float(slice.getAttribute("budget"))
f.write("%d %d %f\n" %
(task_id, slice_cpu, slice_budget))
except IOError as (msg):
raise IOError("Could not create temporary file: %s", (msg))
finally:
f.close()
procs += [
spawn(path.join(EXPERIMENTS_DIR, COMPUTE_TASK_HIME),
["-w", "-T", RUNLENGTH, task_path])
]
elif sched == 'EDF-WM':
task_id = 0
for task in tasks.getElementsByTagName("task"): # For each task
task_id += 1
task_path = ".task_input_wm_" + str(task_id)
try:
f = open(task_path, "w")
if not task.getAttribute("slices"):
wcet = float(task.getAttribute("wcet"))
period = int(task.getAttribute("period"))
cpu = int(task.getAttribute("cpu"))
f.write("%d %f %d 0 %d 0" % (task_id, wcet, period, cpu))
else:
wcet = float(task.getAttribute("wcet"))
period = int(task.getAttribute("period"))
first_cpu = int(task.getAttribute("cpu"))
slice_num = int(task.getAttribute("slices"))
f.write("%d %f %d 0 %d %d\n" %
(task_id, wcet, period, first_cpu, slice_num))
for slice in task.getElementsByTagName(
"slice"): # For each slice
slice_cpu = int(slice.getAttribute("cpu"))
slice_deadline = float(slice.getAttribute("deadline"))
slice_budget = float(slice.getAttribute("budget"))
slice_offset = float(slice.getAttribute("offset"))
f.write("%d %d %f %f %f\n" %
(task_id, slice_cpu, slice_deadline,
slice_budget, slice_offset))
except IOError as (msg):
raise IOError("Could not create temporary file: %s", (msg))
finally:
f.close()
procs += [
spawn(path.join(EXPERIMENTS_DIR, COMPUTE_TASK_EDFWM),
["-w", "-T", RUNLENGTH, task_path])
]
# wait for release
release_taskset(num_tasks=len(procs)).wait()
# wait for all tasks to terminate
for p in procs:
p.wait()
assert p.returncode == 0
def start_background_tasks(num_cpus):
return [
spawn(BACKGROUND_TASK, [cpu], path=EXPERIMENTS_DIR)
for cpu in xrange(num_cpus)
]
def ftcat(saveas, device=None, events=ALL_EVENTS):
if device is None:
device = DEVICE
return spawn('ftcat', [device] + events,
stdout=saveas,
path=FT_TOOLS)
def run_tasks(tasks, sched):
procs = []
if sched == 'HIME':
task_id = 0
for task in tasks.getElementsByTagName("task"): # For each task
task_id += 1
task_path = ".task_input_hime_" + str(task_id)
try:
f = open(task_path, "w")
if not task.getAttribute("slices"):
wcet = float(task.getAttribute("wcet"))
period = int(task.getAttribute("period"))
cpu = int(task.getAttribute("cpu"))
f.write("%d %f %d 0 %d 0" % (task_id, wcet, period, cpu))
else:
wcet = float(task.getAttribute("wcet"))
period = int(task.getAttribute("period"))
first_cpu = int(task.getAttribute("cpu"))
slice_num = int(task.getAttribute("slices"))
f.write("%d %f %d 0 %d %d\n" % (task_id, wcet, period, first_cpu, slice_num))
for slice in task.getElementsByTagName("slice"): # For each slice
slice_cpu = int(slice.getAttribute("cpu"))
slice_budget = float(slice.getAttribute("budget"))
f.write("%d %d %f\n" % (task_id, slice_cpu, slice_budget))
except IOError as (msg):
raise IOError("Could not create temporary file: %s", (msg))
finally:
f.close()
procs += [spawn(path.join(EXPERIMENTS_DIR, COMPUTE_TASK_HIME), ["-w", "-T", RUNLENGTH, task_path])]
elif sched == 'EDF-WM':
task_id = 0
for task in tasks.getElementsByTagName("task"): # For each task
task_id += 1
task_path = ".task_input_wm_" + str(task_id)
try:
f = open(task_path, "w")
if not task.getAttribute("slices"):
wcet = float(task.getAttribute("wcet"))
period = int(task.getAttribute("period"))
cpu = int(task.getAttribute("cpu"))
f.write("%d %f %d 0 %d 0" % (task_id, wcet, period, cpu))
else:
wcet = float(task.getAttribute("wcet"))
period = int(task.getAttribute("period"))
first_cpu = int(task.getAttribute("cpu"))
slice_num = int(task.getAttribute("slices"))
f.write("%d %f %d 0 %d %d\n" % (task_id, wcet, period, first_cpu, slice_num))
for slice in task.getElementsByTagName("slice"): # For each slice
slice_cpu = int(slice.getAttribute("cpu"))
slice_deadline = float(slice.getAttribute("deadline"))
slice_budget = float(slice.getAttribute("budget"))
slice_offset = float(slice.getAttribute("offset"))
f.write("%d %d %f %f %f\n" % (task_id, slice_cpu, slice_deadline, slice_budget, slice_offset))
except IOError as (msg):
raise IOError("Could not create temporary file: %s", (msg))
finally:
f.close()
procs += [spawn(path.join(EXPERIMENTS_DIR, COMPUTE_TASK_EDFWM), ["-w", "-T", RUNLENGTH, task_path])]
# wait for release
release_taskset(num_tasks=len(procs)).wait()
# wait for all tasks to terminate
for p in procs:
p.wait()
assert p.returncode == 0
def run_task(task, *args, **kargs):
(binary, args) = task_args(task, *args, **kargs)
return spawn(binary, args,
path=EXPERIMENTS_DIR)
def start_background_tasks(num_cpus):
return [spawn(BACKGROUND_TASK, [cpu], path=EXPERIMENTS_DIR)
for cpu in xrange(num_cpus)]