# Repository: https://gitlab.com/quantify-os/quantify-scheduler
# Licensed according to the LICENCE file on the main branch
r"""
This module represents the Q-Profile quantum control electronics profiler.
Profiling of the control electronics is enabled by using the
:class:`ProfiledScheduleGettable` in place of
:class:`~.ScheduleGettable`.
.. note::
The :class:`ProfiledScheduleGettable` is currently only tested to support Qblox hardware.
"""
import json
import os
import time
import matplotlib.pyplot as plt
import numpy as np
from qcodes import Instrument
from quantify_scheduler.gettables import ScheduleGettable
from quantify_scheduler.instrument_coordinator.instrument_coordinator import (
InstrumentCoordinator,
)
[docs]
def profiler(func):
"""
Decorator that reports the execution time of the decorated function
and stores this in ``ProfiledInstrumentCoordinator.profile``.
Parameters
----------
func: Callable
Target function to be profiled.
"""
def wrap(self, *args, **kwargs):
start = time.time()
result = func(self, *args, **kwargs)
end = time.time()
if func.__name__ not in self.profile:
self.profile[func.__name__] = []
self.profile[func.__name__].append(end - start)
return result
return wrap
[docs]
class ProfiledInstrumentCoordinator(InstrumentCoordinator):
"""
Subclass of :class:`~.InstrumentCoordinator` that implements a profiling tool to log
timing results. Time results are stored in ``ProfiledInstrumentCoordinator.profile``.
:class:`ProfiledInstrumentCoordinator` is set up to be used when using
:class:`ProfiledScheduleGettable`, code example:
.. code-block:: python
ic = InstrumentCoordinator(name="instrument_coordinator")
quantum_device = QuantumDevice(name="quantum_device")
quantum_device.instr_instrument_coordinator(ic.name)
profiled_gettable = ProfiledScheduleGettable(
quantum_device=quantum_device,
schedule_function=...,
schedule_kwargs=...,
)
profiled_gettable.initialize()
profiled_ic = (
profiled_gettable.quantum_device.instr_instrument_coordinator.get_instr()
)
Parameters
----------
name: str
Name of :class:`ProfiledInstrumentCoordinator` instance.
parent_ic: InstrumentCoordinator
Original :class:`~.InstrumentCoordinator`.
"""
def __init__(self, name: str, parent_ic: InstrumentCoordinator):
[docs]
self.profile = {"schedule": []}
super().__init__(name, add_default_generic_icc=False)
[docs]
self.parent_ic = parent_ic
@profiler
[docs]
def add_component(
self,
component,
) -> None:
self.parent_ic.add_component(component)
@profiler
[docs]
def prepare(
self,
compiled_schedule,
) -> None:
self.profile["schedule"].append(compiled_schedule.get_schedule_duration())
self.parent_ic.prepare(compiled_schedule)
@profiler
[docs]
def start(self):
self.parent_ic.start()
@profiler
[docs]
def stop(self, allow_failure=False):
self.parent_ic.stop()
@profiler
[docs]
def retrieve_acquisition(self):
self.parent_ic.retrieve_acquisition()
@profiler
[docs]
def wait_done(self, timeout_sec: int = 10):
self.parent_ic.wait_done(timeout_sec)
[docs]
class ProfiledScheduleGettable(ScheduleGettable):
"""
To be used in place of :class:`~.ScheduleGettable` to enable profiling of the
compilation. Logged execution times can be read from ``self.profile``, and plotted
via :func:`plot_profile`.
"""
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
# Overwrite linked IC to a profiled IC
[docs]
self.instr_coordinator = (
self.quantum_device.instr_instrument_coordinator.get_instr()
)
[docs]
self.profiled_instr_coordinator = ProfiledInstrumentCoordinator(
name="profiled_ic", parent_ic=self.instr_coordinator
)
self.quantum_device.instr_instrument_coordinator(
self.profiled_instr_coordinator.name
)
@profiler
[docs]
def _compile(self, sched):
"""Overwrite compile step for profiling."""
super()._compile(sched)
[docs]
def close(self):
"""Cleanup new profiling instruments to avoid future conflicts."""
self.profile.update(self.profiled_instr_coordinator.profile)
self.quantum_device.instr_instrument_coordinator(self.instr_coordinator.name)
prof_ic = Instrument.find_instrument("profiled_ic")
Instrument.close(prof_ic)
[docs]
def log_profile(
self,
obj=None,
path="profiling_logs",
filename=None,
indent: int = 4,
separators=None,
):
"""Store profiling logs to json file."""
if not obj:
obj = self.profile
if not separators:
separators = (",", ": ")
if filename:
if not os.path.exists(path):
os.makedirs(path)
file_path = os.path.join(path, filename)
with open(file_path, "w", encoding="utf-8") as file:
json.dump(obj, file, indent=indent, separators=separators)
return self.profile
[docs]
def plot_profile(self, path=None, filename="average_runtimes.pdf"):
"""Create barplot of accumulated profiling data."""
profile = self.profile
time_ax = list(profile.keys())
num_keys = len(time_ax)
x_pos = np.arange(num_keys)
means = [np.mean(x) for x in profile.values()]
error = [np.std(x) for x in profile.values()]
fig, ax = plt.subplots(figsize=(9, 6))
color = ["r", "b", "c", "m", "k", "g", "y"][:num_keys]
ax.bar(x_pos, means, yerr=error, color=color)
ax.bar(num_keys, means[0], color=color[0])
for i in range(1, num_keys):
ax.bar(num_keys, means[i], color=color[i], bottom=sum(means[:i]))
time_ax.append("total")
ax.set_xticks(np.append(x_pos, num_keys))
ax.set_xticklabels(time_ax)
self.plot = (fig, ax)
plt.ylabel("runtime [s]")
plt.title("Average runtimes")
file_path = os.path.join(path, filename) if path else filename
fig.savefig(file_path)
