diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/cycles_to_energy.py | 96 | ||||
| -rw-r--r-- | lib/data_parameters.py | 61 | ||||
| -rw-r--r-- | lib/size_to_radio_energy.py | 51 | ||||
| -rw-r--r-- | lib/utils.py | 22 |
4 files changed, 229 insertions, 1 deletions
diff --git a/lib/cycles_to_energy.py b/lib/cycles_to_energy.py new file mode 100644 index 0000000..bfbac75 --- /dev/null +++ b/lib/cycles_to_energy.py @@ -0,0 +1,96 @@ +""" +Convert CPU cycle count to energy. + +Contains classes for some embedded CPUs/MCUs. Given a configuration, each +class can convert a cycle count to an energy consumption. +""" + +def get_class(cpu_name): + """Return model class for cpu_name.""" + if cpu_name == 'MSP430': + return MSP430 + if cpu_name == 'ATMega168': + return ATMega168 + if cpu_name == 'ATTiny88': + return ATTiny88 + +def _param_list_to_dict(device, param_list): + param_dict = dict() + for i, parameter in enumerate(sorted(device.parameters.keys())): + param_dict[parameter] = param_list[i] + return param_dict + +class MSP430: + name = 'MSP430' + parameters = { + 'cpu_freq': [1e6, 4e6, 8e6, 12e6, 16e6], + 'memory' : ['unified', 'fram0', 'fram50', 'fram66', 'fram75', 'fram100', 'ram'], + 'voltage': [2.2, 3.0], + } + default_params = { + 'cpu_freq': 4e6, + 'memory' : 'unified', + 'voltage': 3 + } + + current_by_mem = { + 'unified' : [210, 640, 1220, 1475, 1845], + 'fram0' : [370, 1280, 2510, 2080, 2650], + 'fram50' : [240, 745, 1440, 1575, 1990], + 'fram66' : [200, 560, 1070, 1300, 1620], + 'fram75' : [170, 480, 890, 1155, 1420], + 'fram100' : [110, 235, 420, 640, 730], + 'ram' : [130, 320, 585, 890, 1070], + } + + def get_current(params): + if type(params) != dict: + return MSP430.get_current(_param_list_to_dict(MSP430, params)) + cpu_freq_index = MSP430.parameters['cpu_freq'].index(params['cpu_freq']) + + return MSP430.current_by_mem[params['memory']][cpu_freq_index] * 1e-6 + +class ATMega168: + name = 'ATMega168' + parameters = { + 'cpu_freq': [1e6, 4e6, 8e6], + 'voltage': [2, 3, 5] + } + default_params = { + 'cpu_freq': 4e6, + 'voltage': 3 + } + + def get_current(params): + if type(params) != dict: + return ATMega168.get_current(_param_list_to_dict(ATMega168, params)) + if params['cpu_freq'] == 1e6 and params['voltage'] <= 2: + return 0.5e-3 + if params['cpu_freq'] == 4e6 and params['voltage'] <= 3: + return 3.5e-3 + if params['cpu_freq'] == 8e6 and params['voltage'] <= 5: + return 12e-3 + return None + +class ATTiny88: + name = 'ATTiny88' + parameters = { + 'cpu_freq': [1e6, 4e6, 8e6], + 'voltage': [2, 3, 5] + } + default_params = { + 'cpu_freq' : 4e6, + 'voltage' : 3 + } + + def get_current(params): + if type(params) != dict: + return ATTiny88.get_current(_param_list_to_dict(ATTiny88, params)) + if params['cpu_freq'] == 1e6 and params['voltage'] <= 2: + return 0.2e-3 + if params['cpu_freq'] == 4e6 and params['voltage'] <= 3: + return 1.4e-3 + if params['cpu_freq'] == 8e6 and params['voltage'] <= 5: + return 4.5e-3 + return None + diff --git a/lib/data_parameters.py b/lib/data_parameters.py index 4dde850..ef463bc 100644 --- a/lib/data_parameters.py +++ b/lib/data_parameters.py @@ -6,6 +6,7 @@ length of lists, ane more. """ from protocol_benchmarks import codegen_for_lib +import cycles_to_energy, size_to_radio_energy, utils import numpy as np import ubjson @@ -175,7 +176,7 @@ class Protolog: ['text_serdes', 'text_size_serdes', idem], ] - def __init__(self, logfile): + def __init__(self, logfile, cpu_conf = None, cpu_conf_str = None, radio_conf = None, radio_conf_str = None): """ Load and enrich raw protobench log data. @@ -267,6 +268,64 @@ class Protolog: except KeyError: pass + if cpu_conf_str: + cpu_conf = utils.parse_conf_str(cpu_conf_str) + + if cpu_conf: + cpu = cycles_to_energy.get_class(cpu_conf['model']) + for key, value in cpu.default_params.items(): + if not key in cpu_conf: + cpu_conf[key] = value + for key in self.aggregate.keys(): + for arch in self.aggregate[key].keys(): + for lib, val in self.aggregate[key][arch].items(): + try: + val['energy_enc'] = int(val['cycles_enc'] * cpu.get_current(cpu_conf) * cpu_conf['voltage'] / cpu_conf['cpu_freq'] * 1e9) + except KeyError: + pass + try: + val['energy_ser'] = int(val['cycles_ser'] * cpu.get_current(cpu_conf) * cpu_conf['voltage'] / cpu_conf['cpu_freq'] * 1e9) + except KeyError: + pass + try: + val['energy_encser'] = int(val['cycles_encser'] * cpu.get_current(cpu_conf) * cpu_conf['voltage'] / cpu_conf['cpu_freq'] * 1e9) + except KeyError: + pass + try: + val['energy_des'] = int(val['cycles_des'] * cpu.get_current(cpu_conf) * cpu_conf['voltage'] / cpu_conf['cpu_freq'] * 1e9) + except KeyError: + pass + try: + val['energy_dec'] = int(val['cycles_dec'] * cpu.get_current(cpu_conf) * cpu_conf['voltage'] / cpu_conf['cpu_freq'] * 1e9) + except KeyError: + pass + try: + val['energy_desdec'] = int(val['cycles_desdec'] * cpu.get_current(cpu_conf) * cpu_conf['voltage'] / cpu_conf['cpu_freq'] * 1e9) + except KeyError: + pass + + if radio_conf_str: + radio_conf = utils.parse_conf_str(radio_conf_str) + + if radio_conf: + radio = size_to_radio_energy.get_class(radio_conf['model']) + for key, value in radio.default_params.items(): + if not key in radio_conf: + radio_conf[key] = value + for key in self.aggregate.keys(): + for arch in self.aggregate[key].keys(): + for lib, val in self.aggregate[key][arch].items(): + try: + radio_conf['txbytes'] = val['serialized_size'] + if radio_conf['txbytes'] > 0: + val['energy_tx'] = int(radio.get_energy(radio_conf) * 1e9) + else: + val['energy_tx'] = 0 + val['energy_encsertx'] = val['energy_encser'] + val['energy_tx'] + except KeyError: + pass + + def add_datapoint(self, arch, lib, key, value, aggregate_label, data_label, getter): """ Set self.aggregate[key][arch][lib][aggregate_Label] = getter(value[data_label]['v']). diff --git a/lib/size_to_radio_energy.py b/lib/size_to_radio_energy.py new file mode 100644 index 0000000..0b5cfd2 --- /dev/null +++ b/lib/size_to_radio_energy.py @@ -0,0 +1,51 @@ +""" +Convert data length to radio TX/RX energy. + +Contains classes for some embedded CPUs/MCUs. Given a configuration, each +class can convert a cycle count to an energy consumption. +""" + +import numpy as np + +def get_class(radio_name: str): + """Return model class for radio_name.""" + if radio_name == 'CC1200tx': + return CC1200tx + +def _param_list_to_dict(device, param_list): + param_dict = dict() + for i, parameter in enumerate(sorted(device.parameters.keys())): + param_dict[parameter] = param_list[i] + return param_dict + +class CC1200tx: + name = 'CC1200tx' + parameters = { + 'symbolrate' : [6, 12, 25, 50, 100, 200, 250], # ksps + 'txbytes' : [], + 'txpower' : [10, 20, 30, 40, 47], # dBm = f(txpower) + } + default_params = { + 'symbolrate' : 100, + 'txpower' : 47, + } + + def get_energy(params): + if type(params) != dict: + return CC1200tx.get_energy(_param_list_to_dict(CC1200tx, params)) + + power = 8.18053941e+04 + power -= 1.24208376e+03 * np.sqrt(params['symbolrate']) + power -= 5.73742779e+02 * np.log(params['txbytes']) + power += 1.76945886e+01 * (params['txpower'])**2 + power += 2.33469617e+02 * np.sqrt(params['symbolrate']) * np.log(params['txbytes']) + power -= 6.99137635e-01 * np.sqrt(params['symbolrate']) * (params['txpower'])**2 + power -= 3.31365158e-01 * np.log(params['txbytes']) * (params['txpower'])**2 + power += 1.32784945e-01 * np.sqrt(params['symbolrate']) * np.log(params['txbytes']) * (params['txpower'])**2 + + duration = 3.65513500e+02 + duration += 8.01016526e+04 * 1/(params['symbolrate']) + duration -= 7.06364515e-03 * params['txbytes'] + duration += 8.00029860e+03 * 1/(params['symbolrate']) * params['txbytes'] + + return power * 1e-6 * duration * 1e-6 diff --git a/lib/utils.py b/lib/utils.py index 64f1780..02c1d26 100644 --- a/lib/utils.py +++ b/lib/utils.py @@ -31,6 +31,21 @@ def float_or_nan(n): except ValueError: return np.nan +def soft_cast_int(n): + """ + Convert to int, if possible. + + If it is empty, returns None. + If it is not numeric, it is left unchanged. + """ + if n == None or n == '': + return None + try: + return int(n) + except ValueError: + return n + + def flatten(somelist): """ Flatten a list. @@ -39,6 +54,13 @@ def flatten(somelist): """ return [item for sublist in somelist for item in sublist] +def parse_conf_str(conf_str): + conf_dict = dict() + for option in conf_str.split(','): + key, value = option.split(':') + conf_dict[key] = soft_cast_int(value) + return conf_dict + def param_slice_eq(a, b, index): """ Check if by_param keys a and b are identical, ignoring the parameter at index. |