Files
baselines/baselines/logger.py
John Schulman 82ebd4a153 Everyrl initial commit & a few minor baselines changes (#226)
* everyrl initial commit

* add keep_buf argument to VecMonitor

* logger changes: set_comm and fix to mpi_mean functionality

* if filename not provided, don't create ResultsWriter

* change variable syncing function to simplify its usage. now you should initialize from all mpi processes

* everyrl coinrun changes

* tf_distr changes, bugfix

* get_one

* bring back get_next to temporarily restore code

* lint fixes

* fix test

* rename profile function

* rename gaussian

* fix coinrun training script
2019-02-26 15:43:24 -08:00

499 lines
14 KiB
Python

import os
import sys
import shutil
import os.path as osp
import json
import time
import datetime
import tempfile
from collections import defaultdict
from contextlib import contextmanager
DEBUG = 10
INFO = 20
WARN = 30
ERROR = 40
DISABLED = 50
class KVWriter(object):
def writekvs(self, kvs):
raise NotImplementedError
class SeqWriter(object):
def writeseq(self, seq):
raise NotImplementedError
class HumanOutputFormat(KVWriter, SeqWriter):
def __init__(self, filename_or_file):
if isinstance(filename_or_file, str):
self.file = open(filename_or_file, 'wt')
self.own_file = True
else:
assert hasattr(filename_or_file, 'read'), 'expected file or str, got %s'%filename_or_file
self.file = filename_or_file
self.own_file = False
def writekvs(self, kvs):
# Create strings for printing
key2str = {}
for (key, val) in sorted(kvs.items()):
if isinstance(val, float):
valstr = '%-8.3g' % (val,)
else:
valstr = str(val)
key2str[self._truncate(key)] = self._truncate(valstr)
# Find max widths
if len(key2str) == 0:
print('WARNING: tried to write empty key-value dict')
return
else:
keywidth = max(map(len, key2str.keys()))
valwidth = max(map(len, key2str.values()))
# Write out the data
dashes = '-' * (keywidth + valwidth + 7)
lines = [dashes]
for (key, val) in sorted(key2str.items(), key=lambda kv: kv[0].lower()):
lines.append('| %s%s | %s%s |' % (
key,
' ' * (keywidth - len(key)),
val,
' ' * (valwidth - len(val)),
))
lines.append(dashes)
self.file.write('\n'.join(lines) + '\n')
# Flush the output to the file
self.file.flush()
def _truncate(self, s):
maxlen = 30
return s[:maxlen-3] + '...' if len(s) > maxlen else s
def writeseq(self, seq):
seq = list(seq)
for (i, elem) in enumerate(seq):
self.file.write(elem)
if i < len(seq) - 1: # add space unless this is the last one
self.file.write(' ')
self.file.write('\n')
self.file.flush()
def close(self):
if self.own_file:
self.file.close()
class JSONOutputFormat(KVWriter):
def __init__(self, filename):
self.file = open(filename, 'wt')
def writekvs(self, kvs):
for k, v in sorted(kvs.items()):
if hasattr(v, 'dtype'):
v = v.tolist()
kvs[k] = float(v)
self.file.write(json.dumps(kvs) + '\n')
self.file.flush()
def close(self):
self.file.close()
class CSVOutputFormat(KVWriter):
def __init__(self, filename):
self.file = open(filename, 'w+t')
self.keys = []
self.sep = ','
def writekvs(self, kvs):
# Add our current row to the history
extra_keys = list(kvs.keys() - self.keys)
extra_keys.sort()
if extra_keys:
self.keys.extend(extra_keys)
self.file.seek(0)
lines = self.file.readlines()
self.file.seek(0)
for (i, k) in enumerate(self.keys):
if i > 0:
self.file.write(',')
self.file.write(k)
self.file.write('\n')
for line in lines[1:]:
self.file.write(line[:-1])
self.file.write(self.sep * len(extra_keys))
self.file.write('\n')
for (i, k) in enumerate(self.keys):
if i > 0:
self.file.write(',')
v = kvs.get(k)
if v is not None:
self.file.write(str(v))
self.file.write('\n')
self.file.flush()
def close(self):
self.file.close()
class TensorBoardOutputFormat(KVWriter):
"""
Dumps key/value pairs into TensorBoard's numeric format.
"""
def __init__(self, dir):
os.makedirs(dir, exist_ok=True)
self.dir = dir
self.step = 1
prefix = 'events'
path = osp.join(osp.abspath(dir), prefix)
import tensorflow as tf
from tensorflow.python import pywrap_tensorflow
from tensorflow.core.util import event_pb2
from tensorflow.python.util import compat
self.tf = tf
self.event_pb2 = event_pb2
self.pywrap_tensorflow = pywrap_tensorflow
self.writer = pywrap_tensorflow.EventsWriter(compat.as_bytes(path))
def writekvs(self, kvs):
def summary_val(k, v):
kwargs = {'tag': k, 'simple_value': float(v)}
return self.tf.Summary.Value(**kwargs)
summary = self.tf.Summary(value=[summary_val(k, v) for k, v in kvs.items()])
event = self.event_pb2.Event(wall_time=time.time(), summary=summary)
event.step = self.step # is there any reason why you'd want to specify the step?
self.writer.WriteEvent(event)
self.writer.Flush()
self.step += 1
def close(self):
if self.writer:
self.writer.Close()
self.writer = None
def make_output_format(format, ev_dir, log_suffix=''):
os.makedirs(ev_dir, exist_ok=True)
if format == 'stdout':
return HumanOutputFormat(sys.stdout)
elif format == 'log':
return HumanOutputFormat(osp.join(ev_dir, 'log%s.txt' % log_suffix))
elif format == 'json':
return JSONOutputFormat(osp.join(ev_dir, 'progress%s.json' % log_suffix))
elif format == 'csv':
return CSVOutputFormat(osp.join(ev_dir, 'progress%s.csv' % log_suffix))
elif format == 'tensorboard':
return TensorBoardOutputFormat(osp.join(ev_dir, 'tb%s' % log_suffix))
else:
raise ValueError('Unknown format specified: %s' % (format,))
# ================================================================
# API
# ================================================================
def logkv(key, val):
"""
Log a value of some diagnostic
Call this once for each diagnostic quantity, each iteration
If called many times, last value will be used.
"""
get_current().logkv(key, val)
def logkv_mean(key, val):
"""
The same as logkv(), but if called many times, values averaged.
"""
get_current().logkv_mean(key, val)
def logkvs(d):
"""
Log a dictionary of key-value pairs
"""
for (k, v) in d.items():
logkv(k, v)
def dumpkvs():
"""
Write all of the diagnostics from the current iteration
"""
return get_current().dumpkvs()
def getkvs():
return get_current().name2val
def log(*args, level=INFO):
"""
Write the sequence of args, with no separators, to the console and output files (if you've configured an output file).
"""
get_current().log(*args, level=level)
def debug(*args):
log(*args, level=DEBUG)
def info(*args):
log(*args, level=INFO)
def warn(*args):
log(*args, level=WARN)
def error(*args):
log(*args, level=ERROR)
def set_level(level):
"""
Set logging threshold on current logger.
"""
get_current().set_level(level)
def set_comm(comm):
get_current().set_comm(comm)
def get_dir():
"""
Get directory that log files are being written to.
will be None if there is no output directory (i.e., if you didn't call start)
"""
return get_current().get_dir()
record_tabular = logkv
dump_tabular = dumpkvs
@contextmanager
def profile_kv(scopename):
logkey = 'wait_' + scopename
tstart = time.time()
try:
yield
finally:
get_current().name2val[logkey] += time.time() - tstart
def profile(n):
"""
Usage:
@profile("my_func")
def my_func(): code
"""
def decorator_with_name(func):
def func_wrapper(*args, **kwargs):
with profile_kv(n):
return func(*args, **kwargs)
return func_wrapper
return decorator_with_name
# ================================================================
# Backend
# ================================================================
def get_current():
if Logger.CURRENT is None:
_configure_default_logger()
return Logger.CURRENT
class Logger(object):
DEFAULT = None # A logger with no output files. (See right below class definition)
# So that you can still log to the terminal without setting up any output files
CURRENT = None # Current logger being used by the free functions above
def __init__(self, dir, output_formats, comm=None):
self.name2val = defaultdict(float) # values this iteration
self.name2cnt = defaultdict(int)
self.level = INFO
self.dir = dir
self.output_formats = output_formats
self.comm = comm
# Logging API, forwarded
# ----------------------------------------
def logkv(self, key, val):
self.name2val[key] = val
def logkv_mean(self, key, val):
oldval, cnt = self.name2val[key], self.name2cnt[key]
self.name2val[key] = oldval*cnt/(cnt+1) + val/(cnt+1)
self.name2cnt[key] = cnt + 1
def dumpkvs(self):
if self.comm is None:
d = self.name2val
else:
from baselines.common import mpi_util
d = mpi_util.mpi_weighted_mean(self.comm,
{name : (val, self.name2cnt.get(name, 1))
for (name, val) in self.name2val.items()})
if self.comm.rank != 0:
d['dummy'] = 1 # so we don't get a warning about empty dict
out = d.copy() # Return the dict for unit testing purposes
for fmt in self.output_formats:
if isinstance(fmt, KVWriter):
fmt.writekvs(d)
self.name2val.clear()
self.name2cnt.clear()
return out
def log(self, *args, level=INFO):
if self.level <= level:
self._do_log(args)
# Configuration
# ----------------------------------------
def set_level(self, level):
self.level = level
def set_comm(self, comm):
self.comm = comm
def get_dir(self):
return self.dir
def close(self):
for fmt in self.output_formats:
fmt.close()
# Misc
# ----------------------------------------
def _do_log(self, args):
for fmt in self.output_formats:
if isinstance(fmt, SeqWriter):
fmt.writeseq(map(str, args))
def configure(dir=None, format_strs=None, comm=None):
"""
If comm is provided, average all numerical stats across that comm
"""
if dir is None:
dir = os.getenv('OPENAI_LOGDIR')
if dir is None:
dir = osp.join(tempfile.gettempdir(),
datetime.datetime.now().strftime("openai-%Y-%m-%d-%H-%M-%S-%f"))
assert isinstance(dir, str)
os.makedirs(dir, exist_ok=True)
log_suffix = ''
rank = 0
# check environment variables here instead of importing mpi4py
# to avoid calling MPI_Init() when this module is imported
for varname in ['PMI_RANK', 'OMPI_COMM_WORLD_RANK']:
if varname in os.environ:
rank = int(os.environ[varname])
if rank > 0:
log_suffix = "-rank%03i" % rank
if format_strs is None:
if rank == 0:
format_strs = os.getenv('OPENAI_LOG_FORMAT', 'stdout,log,csv').split(',')
else:
format_strs = os.getenv('OPENAI_LOG_FORMAT_MPI', 'log').split(',')
format_strs = filter(None, format_strs)
output_formats = [make_output_format(f, dir, log_suffix) for f in format_strs]
Logger.CURRENT = Logger(dir=dir, output_formats=output_formats, comm=comm)
log('Logging to %s'%dir)
def _configure_default_logger():
configure()
Logger.DEFAULT = Logger.CURRENT
def reset():
if Logger.CURRENT is not Logger.DEFAULT:
Logger.CURRENT.close()
Logger.CURRENT = Logger.DEFAULT
log('Reset logger')
@contextmanager
def scoped_configure(dir=None, format_strs=None, comm=None):
prevlogger = Logger.CURRENT
configure(dir=dir, format_strs=format_strs, comm=comm)
try:
yield
finally:
Logger.CURRENT.close()
Logger.CURRENT = prevlogger
# ================================================================
def _demo():
info("hi")
debug("shouldn't appear")
set_level(DEBUG)
debug("should appear")
dir = "/tmp/testlogging"
if os.path.exists(dir):
shutil.rmtree(dir)
configure(dir=dir)
logkv("a", 3)
logkv("b", 2.5)
dumpkvs()
logkv("b", -2.5)
logkv("a", 5.5)
dumpkvs()
info("^^^ should see a = 5.5")
logkv_mean("b", -22.5)
logkv_mean("b", -44.4)
logkv("a", 5.5)
dumpkvs()
info("^^^ should see b = -33.3")
logkv("b", -2.5)
dumpkvs()
logkv("a", "longasslongasslongasslongasslongasslongassvalue")
dumpkvs()
# ================================================================
# Readers
# ================================================================
def read_json(fname):
import pandas
ds = []
with open(fname, 'rt') as fh:
for line in fh:
ds.append(json.loads(line))
return pandas.DataFrame(ds)
def read_csv(fname):
import pandas
return pandas.read_csv(fname, index_col=None, comment='#')
def read_tb(path):
"""
path : a tensorboard file OR a directory, where we will find all TB files
of the form events.*
"""
import pandas
import numpy as np
from glob import glob
import tensorflow as tf
if osp.isdir(path):
fnames = glob(osp.join(path, "events.*"))
elif osp.basename(path).startswith("events."):
fnames = [path]
else:
raise NotImplementedError("Expected tensorboard file or directory containing them. Got %s"%path)
tag2pairs = defaultdict(list)
maxstep = 0
for fname in fnames:
for summary in tf.train.summary_iterator(fname):
if summary.step > 0:
for v in summary.summary.value:
pair = (summary.step, v.simple_value)
tag2pairs[v.tag].append(pair)
maxstep = max(summary.step, maxstep)
data = np.empty((maxstep, len(tag2pairs)))
data[:] = np.nan
tags = sorted(tag2pairs.keys())
for (colidx,tag) in enumerate(tags):
pairs = tag2pairs[tag]
for (step, value) in pairs:
data[step-1, colidx] = value
return pandas.DataFrame(data, columns=tags)
if __name__ == "__main__":
_demo()