Table Of Contents
Table Of Contents

Source code for mxnet.profiler

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# coding: utf-8
# pylint: disable=fixme, invalid-name, too-many-arguments, too-many-locals, too-many-lines
# pylint: disable=too-many-branches, too-many-statements
"""Profiler setting methods."""
from __future__ import absolute_import
import ctypes
import warnings
from .base import _LIB, check_call, c_str, ProfileHandle, c_str_array, py_str, KVStoreHandle

profiler_kvstore_handle = KVStoreHandle()

[docs]def set_kvstore_handle(handle): global profiler_kvstore_handle profiler_kvstore_handle = handle
[docs]def set_config(**kwargs): """Set up the configure of profiler (only accepts keyword arguments). Parameters ---------- filename : string, output file for profile data profile_all : boolean, all profile types enabled profile_symbolic : boolean, whether to profile symbolic operators profile_imperative : boolean, whether to profile imperative operators profile_memory : boolean, whether to profile memory usage profile_api : boolean, whether to profile the C API contiguous_dump : boolean, whether to periodically dump profiling data to file dump_period : float, seconds between profile data dumps aggregate_stats : boolean, whether to maintain aggregate stats in memory for console dump. Has some negative performance impact. profile_process : string whether to profile kvstore `server` or `worker`. server can only be profiled when kvstore is of type dist. if this is not passed, defaults to `worker` """ kk = kwargs.keys() vv = kwargs.values() check_call(_LIB.MXSetProcessProfilerConfig(len(kwargs), c_str_array([key for key in kk]), c_str_array([str(val) for val in vv]), profiler_kvstore_handle))
[docs]def profiler_set_config(mode='symbolic', filename='profile.json'): """Set up the configure of profiler (Deprecated). Parameters ---------- mode : string, optional Indicates whether to enable the profiler, can be 'symbolic', or 'all'. Defaults to `symbolic`. filename : string, optional The name of output trace file. Defaults to 'profile.json'. """ warnings.warn('profiler.profiler_set_config() is deprecated. ' 'Please use profiler.set_config() instead') keys = c_str_array([key for key in ["profile_" + mode, "filename"]]) values = c_str_array([str(val) for val in [True, filename]]) assert len(keys) == len(values) check_call(_LIB.MXSetProcessProfilerConfig(len(keys), keys, values, profiler_kvstore_handle))
[docs]def set_state(state='stop', profile_process='worker'): """Set up the profiler state to 'run' or 'stop'. Parameters ---------- state : string, optional Indicates whether to run the profiler, can be 'stop' or 'run'. Default is `stop`. profile_process : string whether to profile kvstore `server` or `worker`. server can only be profiled when kvstore is of type dist. if this is not passed, defaults to `worker` """ state2int = {'stop': 0, 'run': 1} profile_process2int = {'worker': 0, 'server': 1} check_call(_LIB.MXSetProcessProfilerState(ctypes.c_int(state2int[state]), profile_process2int[profile_process], profiler_kvstore_handle))
[docs]def profiler_set_state(state='stop'): """Set up the profiler state to 'run' or 'stop' (Deprecated). Parameters ---------- state : string, optional Indicates whether to run the profiler, can be 'stop' or 'run'. Default is `stop`. """ warnings.warn('profiler.profiler_set_state() is deprecated. ' 'Please use profiler.set_state() instead') set_state(state)
[docs]def dump(finished=True, profile_process='worker'): """Dump profile and stop profiler. Use this to save profile in advance in case your program cannot exit normally. Parameters ---------- finished : boolean Indicates whether to stop statistic output (dumping) after this dump. Default is True profile_process : string whether to profile kvstore `server` or `worker`. server can only be profiled when kvstore is of type dist. if this is not passed, defaults to `worker` """ fin = 1 if finished is True else 0 profile_process2int = {'worker': 0, 'server': 1} check_call(_LIB.MXDumpProcessProfile(fin, profile_process2int[profile_process], profiler_kvstore_handle))
[docs]def dump_profile(): """Dump profile and stop profiler. Use this to save profile in advance in case your program cannot exit normally.""" warnings.warn('profiler.dump_profile() is deprecated. ' 'Please use profiler.dump() instead') dump(True)
[docs]def dumps(reset=False): """Return a printable string of aggregate profile stats. Parameters ---------- reset: boolean Indicates whether to clean aggeregate statistical data collected up to this point """ debug_str = ctypes.c_char_p() do_reset = 1 if reset is True else 0 check_call(_LIB.MXAggregateProfileStatsPrint(ctypes.byref(debug_str), int(do_reset))) return py_str(debug_str.value)
[docs]def pause(profile_process='worker'): """Pause profiling. Parameters ---------- profile_process : string whether to profile kvstore `server` or `worker`. server can only be profiled when kvstore is of type dist. if this is not passed, defaults to `worker` """ profile_process2int = {'worker': 0, 'server': 1} check_call(_LIB.MXProcessProfilePause(int(1), profile_process2int[profile_process], profiler_kvstore_handle))
[docs]def resume(profile_process='worker'): """ Resume paused profiling. Parameters ---------- profile_process : string whether to profile kvstore `server` or `worker`. server can only be profiled when kvstore is of type dist. if this is not passed, defaults to `worker` """ profile_process2int = {'worker': 0, 'server': 1} check_call(_LIB.MXProcessProfilePause(int(0), profile_process2int[profile_process], profiler_kvstore_handle))
[docs]class Domain(object): """Profiling domain, used to group sub-objects like tasks, counters, etc into categories Serves as part of 'categories' for chrome://tracing Note: Domain handles are never destroyed. Parameters ---------- name : string Name of the domain """
[docs] def __init__(self, name): self.name = name self.handle = ProfileHandle() check_call(_LIB.MXProfileCreateDomain(c_str(self.name), ctypes.byref(self.handle)))
def __str__(self): return self.name def new_task(self, name): """Create new Task object owned by this domain Parameters ---------- name : string Name of the task """ return Task(self, name) def new_frame(self, name): """Create new Frame object owned by this domain Parameters ---------- name : string Name of the frame """ return Frame(self, name) def new_counter(self, name, value=None): """Create new Counter object owned by this domain Parameters ---------- name : string Name of the counter """ return Counter(self, name, value) def new_marker(self, name): """Create new Marker object owned by this domain Parameters ---------- name : string Name of the marker """ return Marker(self, name)
[docs]class Task(object): """Profiling Task class. A task is a logical unit of work performed by a particular thread. Tasks can nest; thus, tasks typically correspond to functions, scopes, or a case block in a switch statement. You can use the Task API to assign tasks to threads. This is different from Frame in that all profiling statistics for passes through the task's begin and endpoints are accumulated together into a single statistical analysys, rather than a separate analysis for each pass (as with a Frame) Parameters ---------- domain : Domain object Domain to which this object belongs name : string Name of the task """
[docs] def __init__(self, domain, name): self.name = name self.handle = ProfileHandle() check_call(_LIB.MXProfileCreateTask(domain.handle, c_str(self.name), ctypes.byref(self.handle)))
def __del__(self): if self.handle is not None: check_call(_LIB.MXProfileDestroyHandle(self.handle)) def start(self): """Start timing scope for this object""" check_call(_LIB.MXProfileDurationStart(self.handle)) def stop(self): """Stop timing scope for this object""" check_call(_LIB.MXProfileDurationStop(self.handle)) def __str__(self): return self.name
[docs]class Frame(object): """Profiling Frame class. Use the frame API to insert calls to the desired places in your code and analyze performance per frame, where frame is the time period between frame begin and end points. When frames are displayed in Intel VTune Amplifier, they are displayed in a separate track, so they provide a way to visually separate this data from normal task data. This is different from Task in that each 'Frame' duration will be a discretely-numbered event in the VTune output, as well as its rate (frame-rate) shown. This is analogous to profiling each frame of some visual output, such as rendering a video game frame. Parameters ---------- domain : Domain object Domain to which this object belongs name : string Name of the frame """
[docs] def __init__(self, domain, name): self.name = name self.handle = ProfileHandle() check_call(_LIB.MXProfileCreateFrame(domain.handle, c_str(self.name), ctypes.byref(self.handle)))
def __del__(self): if self.handle is not None: check_call(_LIB.MXProfileDestroyHandle(self.handle)) def start(self): """Start timing scope for this object""" check_call(_LIB.MXProfileDurationStart(self.handle)) def stop(self): """Stop timing scope for this object""" check_call(_LIB.MXProfileDurationStop(self.handle)) def __str__(self): return self.name
[docs]class Event(object): """Profiling Event class. The event API is used to observe when demarcated events occur in your application, or to identify how long it takes to execute demarcated regions of code. Set annotations in the application to demarcate areas where events of interest occur. After running analysis, you can see the events marked in the Timeline pane. Event API is a per-thread function that works in resumed state. This function does not work in paused state. Parameters ---------- name : string Name of the event """
[docs] def __init__(self, name): self.name = name self.handle = ProfileHandle() check_call(_LIB.MXProfileCreateEvent(c_str(self.name), ctypes.byref(self.handle)))
def __del__(self): if self.handle is not None: check_call(_LIB.MXProfileDestroyHandle(self.handle)) def start(self): """Start timing scope for this object""" check_call(_LIB.MXProfileDurationStart(self.handle)) def stop(self): """Stop timing scope for this object""" check_call(_LIB.MXProfileDurationStop(self.handle)) def __str__(self): return self.name
[docs]class Counter(object): """Profiling Counter class. The counter event can track a value as it changes over time. Parameters ---------- domain : Domain object Domain to which this object belongs name : string Name of the counter value: integer, optional Initial value of the counter """
[docs] def __init__(self, domain, name, value=None): self.name = name self.handle = ProfileHandle() check_call(_LIB.MXProfileCreateCounter(domain.handle, c_str(name), ctypes.byref(self.handle))) if value is not None: self.set_value(value)
def __del__(self): if self.handle is not None: check_call(_LIB.MXProfileDestroyHandle(self.handle)) def set_value(self, value): """Set counter value. Parameters ---------- value : int Value for the counter """ check_call(_LIB.MXProfileSetCounter(self.handle, int(value))) def increment(self, delta=1): """Increment counter value. Parameters ---------- value_change : int Amount by which to add to the counter """ check_call(_LIB.MXProfileAdjustCounter(self.handle, int(delta))) def decrement(self, delta=1): """Decrement counter value. Parameters ---------- value_change : int Amount by which to subtract from the counter """ check_call(_LIB.MXProfileAdjustCounter(self.handle, -int(delta))) def __iadd__(self, delta): self.increment(delta) return self def __isub__(self, delta): self.decrement(delta) return self def __str__(self): return self.name
[docs]class Marker(object): """Set marker for an instant in time. The marker event marks a particular instant in time across some scope boundaries. Parameters ---------- domain : Domain object Domain to which this object belongs name : string Name of the marker """
[docs] def __init__(self, domain, name): self.name = name self.domain = domain
def mark(self, scope='process'): """Set up the profiler state to record operator. Parameters ---------- scope : string, optional Indicates what scope the marker should refer to. Can be 'global', 'process', thread', task', and 'marker' Default is `process`. """ check_call(_LIB.MXProfileSetMarker(self.domain.handle, c_str(self.name), c_str(scope)))