path: root/bin/analyze-timing.py

#!/usr/bin/env python3
"""
analyze-timing -- generate analytic energy model from annotated OnboardTimerHarness traces.

Usage:
PYTHONPATH=lib bin/analyze-timing.py [options] <tracefiles ...>

analyze-timing generates an analytic energy model (``AnalyticModel``)from one or more annotated
traces generated by generate-dfa-benchmark using OnboardTimerHarness. By default, it does nothing else --
use one of the --plot-* or --show-* options to examine the generated model.

Options:
--plot-unparam=<name>:<attribute>:<Y axis label>[;<name>:<attribute>:<label>;...]
    Plot all mesurements for <name> <attribute> without regard for parameter values.
    X axis is measurement number/id.

--plot-param=<name> <attribute> <parameter> [gplearn function][;<name> <attribute> <parameter> [function];...]
    Plot measurements for <name> <attribute> by <parameter>.
    X axis is parameter value.
    Plots the model function as one solid line for each combination of non-<parameter>
    parameters. Also plots the corresponding measurements.
    If gplearn function is set, it is plotted using dashed lines.

--show-models=<static|paramdetection|param|all|tex>
    static: show static model values as well as parameter detection heuristic
    paramdetection: show stddev of static/lut/fitted model
    param: show parameterized model functions and regression variable values
    all: all of the above
    tex: print tex/pgfplots-compatible model data on stdout

--show-quality=<table|summary|all|tex>
    table: show static/fitted/lut SMAPE and MAE for each name and attribute
    summary: show static/fitted/lut SMAPE and MAE for each attribute, averaged over all states/transitions
    all: all of the above
    tex: print tex/pgfplots-compatible model quality data on stdout

--ignored-trace-indexes=<i1,i2,...>
    Specify traces which should be ignored due to bogus data. 1 is the first
    trace, 2 the second, and so on.

--cross-validate=<method>:<count>
    Perform cross validation when computing model quality.
    Only works with --show-quality=table at the moment.
    If <method> is "montecarlo": Randomly divide data into 2/3 training and 1/3
    validation, <count> times. Reported model quality is the average of all
    validation runs. Data is partitioned without regard for parameter values,
    so a specific parameter combination may be present in both training and
    validation sets or just one of them.

--function-override=<name attribute function>[;<name> <attribute> <function>;...]
    Manually specify the function to fit for <name> <attribute>. A function
    specified this way bypasses parameter detection: It is always assigned,
    even if the model seems to be independent of the parameters it references.

--with-safe-functions
    If set, include "safe" functions (safe_log, safe_inv, safe_sqrt) which are
    also defined for cases such as safe_inv(0) or safe_sqrt(-1). This allows
    a greater range of functions to be tried during fitting.

--hwmodel=<hwmodel.json>
    Load DFA hardware model from JSON

--export-energymodel=<model.json>
    Export energy model. Requires --hwmodel.
"""

import getopt
import json
import plotter
import re
import sys
from dfatool import AnalyticModel, TimingData, pta_trace_to_aggregate
from dfatool import soft_cast_int, is_numeric, gplearn_to_function
from dfatool import CrossValidator

opts = {}

def print_model_quality(results):
    for state_or_tran in results.keys():
        print()
        for key, result in results[state_or_tran].items():
            if 'smape' in result:
                print('{:20s} {:15s} {:.2f}% / {:.0f}'.format(
                    state_or_tran, key, result['smape'], result['mae']))
            else:
                print('{:20s} {:15s} {:.0f}'.format(
                    state_or_tran, key, result['mae']))

def format_quality_measures(result):
    if 'smape' in result:
        return '{:6.2f}% / {:9.0f}'.format(result['smape'], result['mae'])
    else:
        return '{:6}    {:9.0f}'.format('', result['mae'])

def model_quality_table(result_lists, info_list):
    for state_or_tran in result_lists[0]['by_name'].keys():
        for key in result_lists[0]['by_name'][state_or_tran].keys():
            buf = '{:20s} {:15s}'.format(state_or_tran, key)
            for i, results in enumerate(result_lists):
                info = info_list[i]
                buf += '  |||  '
                if info == None or info(state_or_tran, key):
                    result = results['by_name'][state_or_tran][key]
                    buf += format_quality_measures(result)
                else:
                    buf += '{:6}----{:9}'.format('', '')
            print(buf)


def print_text_model_data(model, pm, pq, lm, lq, am, ai, aq):
    print('')
    print(r'key attribute $1 - \frac{\sigma_X}{...}$')
    for state_or_tran in model.by_name.keys():
        for attribute in model.attributes(state_or_tran):
            print('{} {} {:.8f}'.format(state_or_tran, attribute, model.stats.generic_param_dependence_ratio(state_or_tran, attribute)))

    print('')
    print(r'key attribute parameter $1 - \frac{...}{...}$')
    for state_or_tran in model.by_name.keys():
        for attribute in model.attributes(state_or_tran):
            for param in model.parameters():
                print('{} {} {} {:.8f}'.format(state_or_tran, attribute, param, model.stats.param_dependence_ratio(state_or_tran, attribute, param)))
            if state_or_tran in model._num_args:
                for arg_index in range(model._num_args[state_or_tran]):
                    print('{} {} {:d} {:.8f}'.format(state_or_tran, attribute, arg_index, model.stats.arg_dependence_ratio(state_or_tran, attribute, arg_index)))

if __name__ == '__main__':

    ignored_trace_indexes = []
    discard_outliers = None
    safe_functions_enabled = False
    function_override = {}
    show_models = []
    show_quality = []
    hwmodel = None
    energymodel_export_file = None
    xv_method = None
    xv_count = 10

    try:
        optspec = (
            'plot-unparam= plot-param= show-models= show-quality= '
            'ignored-trace-indexes= discard-outliers= function-override= '
            'cross-validate= '
            'with-safe-functions hwmodel= export-energymodel='
        )
        raw_opts, args = getopt.getopt(sys.argv[1:], "", optspec.split(' '))

        for option, parameter in raw_opts:
            optname = re.sub(r'^--', '', option)
            opts[optname] = parameter

        if 'ignored-trace-indexes' in opts:
            ignored_trace_indexes = list(map(int, opts['ignored-trace-indexes'].split(',')))
            if 0 in ignored_trace_indexes:
                print('[E] arguments to --ignored-trace-indexes start from 1')

        if 'discard-outliers' in opts:
            discard_outliers = float(opts['discard-outliers'])

        if 'function-override' in opts:
            for function_desc in opts['function-override'].split(';'):
                state_or_tran, attribute, *function_str = function_desc.split(' ')
                function_override[(state_or_tran, attribute)] = ' '.join(function_str)

        if 'show-models' in opts:
            show_models = opts['show-models'].split(',')

        if 'show-quality' in opts:
            show_quality = opts['show-quality'].split(',')

        if 'cross-validate' in opts:
            xv_method, xv_count = opts['cross-validate'].split(':')
            xv_count = int(xv_count)

        if 'with-safe-functions' in opts:
            safe_functions_enabled = True

        if 'hwmodel' in opts:
            with open(opts['hwmodel'], 'r') as f:
                hwmodel = json.load(f)

    except getopt.GetoptError as err:
        print(err)
        sys.exit(2)

    raw_data = TimingData(args)

    preprocessed_data = raw_data.get_preprocessed_data()
    by_name, parameters, arg_count = pta_trace_to_aggregate(preprocessed_data, ignored_trace_indexes)
    model = AnalyticModel(by_name, parameters, arg_count)

    if xv_method:
        xv = CrossValidator(AnalyticModel, by_name, parameters, arg_count)

    if 'plot-unparam' in opts:
        for kv in opts['plot-unparam'].split(';'):
            state_or_trans, attribute, ylabel = kv.split(':')
            fname = 'param_y_{}_{}.pdf'.format(state_or_trans,attribute)
            plotter.plot_y(model.by_name[state_or_trans][attribute], xlabel = 'measurement #', ylabel = ylabel, output = fname)

    if len(show_models):
        print('--- simple static model ---')
    static_model = model.get_static()
    if 'static' in show_models or 'all' in show_models:
        for trans in model.names:
            print('{:10s}: {:.0f} µs'.format(trans, static_model(trans, 'duration')))

    if xv_method == 'montecarlo':
        static_quality = xv.montecarlo(lambda m: m.get_static(), xv_count)
    else:
        static_quality = model.assess(static_model)

    if len(show_models):
        print('--- LUT ---')
    lut_model = model.get_param_lut()

    if xv_method == 'montecarlo':
        lut_quality = xv.montecarlo(lambda m: m.get_param_lut(fallback=True), xv_count)
    else:
        lut_quality = model.assess(lut_model)

    if len(show_models):
        print('--- param model ---')

    param_model, param_info = model.get_fitted(safe_functions_enabled = safe_functions_enabled)

    if 'paramdetection' in show_models or 'all' in show_models:
        for transition in model.names:
            for attribute in ['duration']:
                info = param_info(transition, attribute)
                print('{:10s} {:10s} non-param stddev {:f}'.format(
                    transition, attribute, model.stats.stats[transition][attribute]['std_static']
                ))
                print('{:10s} {:10s} param-lut stddev {:f}'.format(
                    transition, attribute, model.stats.stats[transition][attribute]['std_param_lut']
                ))
                for param in sorted(model.stats.stats[transition][attribute]['std_by_param'].keys()):
                    print('{:10s} {:10s} {:10s} stddev {:f}'.format(
                        transition, attribute, param, model.stats.stats[transition][attribute]['std_by_param'][param]
                    ))
                for i, arg_stddev in enumerate(model.stats.stats[transition][attribute]['std_by_arg']):
                    print('{:10s} {:10s} arg{:d} stddev {:f}'.format(
                        transition, attribute, i, arg_stddev
                    ))
                if info != None:
                    for param_name in sorted(info['fit_result'].keys(), key=str):
                        param_fit = info['fit_result'][param_name]['results']
                        for function_type in sorted(param_fit.keys()):
                            function_rmsd = param_fit[function_type]['rmsd']
                            print('{:10s} {:10s} {:10s} mean {:10s} RMSD {:.0f}'.format(
                                transition, attribute, str(param_name), function_type, function_rmsd
                            ))

    if 'param' in show_models or 'all' in show_models:
        for trans in model.names:
            for attribute in ['duration']:
                if param_info(trans, attribute):
                    print('{:10s}: {:10s}: {}'.format(trans, attribute, param_info(trans, attribute)['function']._model_str))
                    print('{:10s}  {:10s}  {}'.format('', '', param_info(trans, attribute)['function']._regression_args))

    if xv_method == 'montecarlo':
        analytic_quality = xv.montecarlo(lambda m: m.get_fitted()[0], xv_count)
    else:
        analytic_quality = model.assess(param_model)

    if 'tex' in show_models or 'tex' in show_quality:
        print_text_model_data(model, static_model, static_quality, lut_model, lut_quality, param_model, param_info, analytic_quality)

    if 'table' in show_quality or 'all' in show_quality:
        model_quality_table([static_quality, analytic_quality, lut_quality], [None, param_info, None])

    if 'plot-param' in opts:
        for kv in opts['plot-param'].split(';'):
            state_or_trans, attribute, param_name, *function = kv.split(' ')
            if len(function):
                function = gplearn_to_function(' '.join(function))
            else:
                function = None
            plotter.plot_param(model, state_or_trans, attribute, model.param_index(param_name), extra_function=function)



    sys.exit(0)