def run_sim(self, p):
print ("Parameters: ")
for k, v in p.items():
if k[0:2] == "__":
continue
print (str(k) + " : " + str(v))
del k
del v
# init random number generator from seed
np.random.seed(p["random_seed"])
# initialize hyperparameters fresh, unless we are resuming a saved simulation
# in which case, we load the parameters
if not p.has_key("load_name"):
self.init_sim(p)
else:
self.load_sim(p)
# initialize environment
self.sim = cartpole_environment()
self.vel_bound = p["vel_bound"]
self.pos_bound = p["pos_bound"]
self.angle_vel_bound = p["angle_vel_bound"]
self.sim.init(
self.vel_bound,
self.angle_vel_bound,
self.pos_bound,
p["g"],
p["l"],
p["mp"],
p["mc"],
p["dt"],
p["negative_reward"],
p["positive_reward"],
p["no_reward"],
p.get("reward_type", 0),
)
self.do_vis = p["do_vis"]
self.save_images = p.get("save_images", False)
self.image_save_dir = p.get("image_save_dir", None)
save_interval = p["save_interval"]
self.do_running_printout = p.get("do_running_printout", False)
self.showevery = p["showevery"]
self.fastforwardskip = 5
push_force = p["push_force"]
self.reward_type = p.get("reward_type", 0)
self.use_full_output = p.get("use_full_output", False)
self.earlyendepisode = np.zeros(10)
self.earlyendreward = np.zeros(10)
for i in range(9):
self.earlyendepisode[i] = p.get("earlyendepisode" + str(i), 0)
self.earlyendreward[i] = p.get("earlyendreward" + str(i), 0)
self.do_recurrence = p.get("do_recurrence", False)
if self.do_vis:
# only import if we need it, since we don't want to require installation of pygame
from cartpole.vis.visualize_sdl import visualize_sdl
v = visualize_sdl()
v.init_vis(
p["display_width"],
p["display_height"],
p["axis_x_min"],
p["axis_x_max"],
p["axis_y_min"],
p["axis_y_max"],
p["fps"],
)
print_update_timer = time.time()
self.start_time = time.time()
elapsed_time = time.time()
step_duration_timer = time.time()
save_time = time.time()
self.avg_step_duration = 1.0
##repeat for each episode
self.r_sum_avg = -0.95
self.r_sum_avg_list = []
self.steps_balancing_pole_list = []
self.steps_balancing_pole_avg = 0.00
self.steps_balancing_pole_avg_list = []
while 1:
# reset eligibility at the beginning of each episode
# TODO: This should be abstracted into a function call
if hasattr(self.qsa, "_lambda"):
for l in self.qsa.net.layer:
l.eligibility = np.zeros(l.eligibility.shape, dtype=np.float32)
self.step = 0
##initialize s
self.sim.reset_state()
self.s = self.state_transformer.transform(self.sim.get_state())
if self.do_recurrence:
# choose a from s using policy derived from Q
self.h = np.zeros(p["num_hidden"], dtype=np.float32)
(self.a, self.qsa_tmp, self.h_prime) = self.choose_action_recurrence(np.append(self.s, self.h), p)
else:
# choose a from s using policy derived from Q
(self.a, self.qsa_tmp) = self.choose_action(self.s, p)
balance_list = []
self.r_sum = 0.0
# repeat steps
quit = False
save_and_exit = False
while 1:
##take action a, observe r, s'
a_vel = [0.0, -push_force, push_force]
self.sim.set_action(a_vel[self.a])
self.sim.step()
# print("Terminal: " + str(self.sim.is_terminal))
self.r = self.sim.get_reward(self.reward_type)
self.s_prime = self.state_transformer.transform(self.sim.get_state())
self.r_sum += self.r
# for consistency, we always label balancing steps with the same reward function
balance_list.append(self.sim.get_reward(0))
if self.do_recurrence:
(self.a_prime, self.qsa_prime, self.h_primeprime) = self.choose_action_recurrence(
np.append(self.s_prime, self.h_prime), p
)
current_s = np.append(self.s, self.h)
next_s = np.append(self.s_prime, self.h_prime)
self.qsa.store(
current_s,
self.a,
self.qsa_tmp
+ self.alpha * (self.r + self.gamma * self.qsa.load(next_s, self.a_prime) - self.qsa_tmp),
)
else:
# choose a' from s' using policy derived from Q
(self.a_prime, self.qsa_prime) = self.choose_action(self.s_prime, p)
# Q(s,a) <- Q(s,a) + alpha[r + gamma*Q(s_prime,a_prime) - Q(s,a)]
# todo: qsa_prime can be saved and reused for qsa_tmp
# qsa_tmp = self.qsa.load(self.s,self.a)
# self.qsa.update(self.s,self.a,self.r,self.s_prime,self.a_prime,self.qsa_tmp)
self.qsa.store(
self.s,
self.a,
self.qsa_tmp
+ self.alpha * (self.r + self.gamma * self.qsa.load(self.s_prime, self.a_prime) - self.qsa_tmp),
)
if self.do_vis:
if not (self.episode % self.showevery):
self.fast_forward = False
v.delay_vis()
v.draw_cartpole(self.sim.get_state(), self.a, self.sim.get_reward(self.reward_type), self)
exit = v.update_vis()
if exit:
quit = True
elif self.step == 0 and not (self.episode % self.fastforwardskip):
self.fast_forward = True
v.delay_vis()
v.draw_cartpole(self.sim.get_state(), self.a, self.sim.get_reward(self.reward_type), self)
exit = v.update_vis()
if exit:
quit = True
# if(p.has_key('print_state_debug') and p['print_state_debug'] == True):
# print("action: " + str(a) + " r: " + str(r) + \
# " Qsa: " + str(self.qsa.load(s,a)) + " state: " + str(s))
# print("Qs0: " + str(self.qsa.load(s,0)))
# print("Qs1: " + str(self.qsa.load(s,1)))
# print("Qs2: " + str(self.qsa.load(s,2)))
# TODO: put this printout stuff in a function
# the self.episode > 0 check prevents a bug where some of the printouts are empty arrays before the first episode completes
if self.do_running_printout and print_update_timer < time.time() - 1.0 and self.episode > 0:
self.do_running_printout()
if self.episode >= p["train_episodes"]:
save_and_exit = True
quit = True
if quit:
break
if self.sim.is_terminal:
break
if self.step > p["max_steps"]:
break
## s <- s'; a <-- a'
self.s = self.s_prime
self.a = self.a_prime
self.qsa_tmp = self.qsa_prime
if self.do_recurrence:
self.h = self.h_prime
self.h_prime = self.h_primeprime
# print("Next Step \n")
self.step += 1
self.avg_step_duration = 0.995 * self.avg_step_duration + (1.0 - 0.995) * (
time.time() - step_duration_timer
)
step_duration_timer = time.time()
# end step loop
# compute the number of steps that have a positive reward, as the number of steps that balanced
self.steps_balancing_pole = np.sum(np.array(balance_list) > 0.0000001)
self.steps_balancing_pole_list.append(self.steps_balancing_pole)
self.steps_balancing_pole_avg = (
0.995 * self.steps_balancing_pole_avg + (1.0 - 0.995) * self.steps_balancing_pole
)
self.steps_balancing_pole_avg_list.append(self.steps_balancing_pole_avg)
self.r_sum_avg = 0.995 * self.r_sum_avg + (1.0 - 0.995) * self.r_sum
if p["decay_type"] == "geometric":
self.epsilon = self.epsilon * p["epsilon_decay"]
self.epsilon = max(p["epsilon_min"], self.epsilon)
elif p["decay_type"] == "linear":
self.epsilon = self.epsilon - p["epsilon_decay"]
self.epsilon = max(p["epsilon_min"], self.epsilon)
if p.has_key("learning_rate_decay_type") and p["learning_rate_decay_type"] == "geometric":
self.alpha = self.alpha * p["learning_rate_decay"]
self.alpha = max(p["learning_rate_min"] / p["learning_rate"], self.alpha)
elif p.has_key("learning_rate_decay_type") and p["learning_rate_decay_type"] == "linear":
self.alpha = self.alpha - p["learning_rate_decay"]
self.alpha = max(p["learning_rate_min"] / p["learning_rate"], self.alpha)
# print debug for episode
m, s = divmod(time.time() - self.start_time, 60)
h, m = divmod(m, 60)
sys.stdout.write(
("ep: %d" % self.episode)
+ (" epsilon: %2.4f" % self.epsilon)
+ (" avg steps balanced: %2.4f" % self.steps_balancing_pole_avg)
+ (" max steps balanced: %2.4f" % np.max(np.array(self.steps_balancing_pole_avg_list)))
+ (" total_steps: %d" % self.step)
+ (" steps/sec: %2.4f" % (1.0 / self.avg_step_duration))
)
if hasattr(self.qsa, "net"):
if hasattr(self.qsa.net.layer[0], "zeta"):
sys.stdout.write(" L0 zeta: %2.4f" % self.qsa.net.layer[0].zeta)
if hasattr(self.qsa.net.layer[1], "zeta"):
sys.stdout.write(" L1 zeta: %2.4f" % self.qsa.net.layer[1].zeta)
sys.stdout.write(" l_rate: %2.4f" % (self.alpha * p["learning_rate"]))
print (" Time %d:%02d:%02d" % (h, m, s))
sys.stdout.flush()
for i in range(9):
if (
self.earlyendepisode[i] > 0
and self.episode == self.earlyendepisode[i]
and np.max(np.array(self.steps_balancing_pole_avg_list)) < self.earlyendreward[i]
):
print ("ending early")
save_and_exit = True
# save stuff (TODO: Put this in a save function)
if time.time() - save_time > save_interval or save_and_exit == True:
print ("saving results...")
self.save_results(p["results_dir"] + p["simname"] + p["version"] + ".h5py", p)
save_time = time.time()
if quit == True or save_and_exit == True:
break
self.episode += 1
# end episode loop
self.update_results(p)
obj = np.max(self.results["steps_balancing_pole_avg_list"])
argmax = np.argmax(self.results["steps_balancing_pole_avg_list"])
print ("obj: " + str(obj) + " argmax: " + str(argmax))
return self.results
def run_sim(self,p):
print("Parameters: ")
for k,v in p.items():
if(k[0:2] == '__'):
continue
print(str(k) + " : " + str(v))
del k
del v
#init random number generator from seed
np.random.seed(p['random_seed']);
#initialize hyperparameters fresh, unless we are resuming a saved simulation
#in which case, we load the parameters
if(not p.has_key('load_name')):
self.init_sim(p)
else:
self.load_sim(p)
#initialize environment
self.sim = cartpole_environment()
self.vel_bound = p['vel_bound']
self.pos_bound = p['pos_bound']
self.angle_vel_bound = p['angle_vel_bound']
self.sim.init(self.vel_bound,self.angle_vel_bound,self.pos_bound,
p['g'],p['l'],p['mp'],p['mc'],p['dt'],p['negative_reward'],p['positive_reward'],p['no_reward'],p.get('reward_type',0))
self.do_vis = p['do_vis']
self.save_images = p.get('save_images',False)
self.image_save_dir = p.get('image_save_dir',None)
save_interval = p['save_interval']
self.do_running_printout = p.get('do_running_printout',False)
self.showevery = p['showevery']
self.fastforwardskip = 5
push_force = p['push_force']
self.reward_type = p.get('reward_type',0)
self.use_full_output = p.get('use_full_output',False)
self.earlyendepisode = np.zeros(10)
self.earlyendreward = np.zeros(10)
for i in range(9):
self.earlyendepisode[i] = p.get('earlyendepisode' + str(i),0)
self.earlyendreward[i] = p.get('earlyendreward' + str(i),0)
self.do_recurrence = p.get('do_recurrence',False)
if(self.do_vis):
#only import if we need it, since we don't want to require installation of pygame
from cartpole.vis.visualize_sdl import visualize_sdl
v = visualize_sdl()
v.init_vis(p['display_width'],p['display_height'],p['axis_x_min'],p['axis_x_max'],p['axis_y_min'],p['axis_y_max'],p['fps'])
print_update_timer = time.time()
self.start_time = time.time()
elapsed_time = time.time()
step_duration_timer = time.time()
save_time = time.time()
self.avg_step_duration = 1.0
##repeat for each episode
self.r_sum_avg = -0.95
self.r_sum_avg_list = []
self.steps_balancing_pole_list = []
self.steps_balancing_pole_avg = 0.00
self.steps_balancing_pole_avg_list = []
while 1:
#reset eligibility at the beginning of each episode
#TODO: This should be abstracted into a function call
if(hasattr(self.qsa,'_lambda')):
for l in self.qsa.net.layer:
l.eligibility = np.zeros(l.eligibility.shape,dtype=np.float32)
self.step = 0
##initialize s
self.sim.reset_state()
self.s = self.state_transformer.transform(self.sim.get_state())
if(self.do_recurrence):
#choose a from s using policy derived from Q
self.h = np.zeros(p['num_hidden'],dtype=np.float32)
(self.a,self.qsa_tmp,self.h_prime) = self.choose_action_recurrence(np.append(self.s,self.h),p);
else:
#choose a from s using policy derived from Q
(self.a,self.qsa_tmp) = self.choose_action(self.s,p);
balance_list = []
self.r_sum = 0.0
#repeat steps
quit = False
save_and_exit = False
while 1:
##take action a, observe r, s'
a_vel = [0.0,-push_force,push_force]
self.sim.set_action(a_vel[self.a])
self.sim.step()
#print("Terminal: " + str(self.sim.is_terminal))
self.r = self.sim.get_reward(self.reward_type)
self.s_prime = self.state_transformer.transform(self.sim.get_state())
self.r_sum += self.r
#for consistency, we always label balancing steps with the same reward function
balance_list.append(self.sim.get_reward(0))
if(self.do_recurrence):
(self.a_prime,self.qsa_prime,self.h_primeprime) = \
self.choose_action_recurrence(np.append(self.s_prime,self.h_prime),p)
current_s = np.append(self.s,self.h)
next_s = np.append(self.s_prime,self.h_prime)
self.qsa.store(current_s,self.a,self.qsa_tmp + \
self.alpha*(self.r + self.gamma*self.qsa.load(next_s,self.a_prime) - self.qsa_tmp))
else:
#choose a' from s' using policy derived from Q
(self.a_prime,self.qsa_prime) = self.choose_action(self.s_prime,p)
#Q(s,a) <- Q(s,a) + alpha[r + gamma*Q(s_prime,a_prime) - Q(s,a)]
#todo: qsa_prime can be saved and reused for qsa_tmp
#qsa_tmp = self.qsa.load(self.s,self.a)
#self.qsa.update(self.s,self.a,self.r,self.s_prime,self.a_prime,self.qsa_tmp)
self.qsa.store(self.s,self.a,self.qsa_tmp + \
self.alpha*(self.r + self.gamma*self.qsa.load(self.s_prime,self.a_prime) - self.qsa_tmp))
if(self.do_vis):
if not (self.episode % self.showevery):
self.fast_forward = False
v.delay_vis()
v.draw_cartpole(self.sim.get_state(),self.a,self.sim.get_reward(self.reward_type),self)
exit = v.update_vis()
if(exit):
quit=True
elif(self.step == 0 and not (self.episode % self.fastforwardskip)):
self.fast_forward = True
v.delay_vis()
v.draw_cartpole(self.sim.get_state(),self.a,self.sim.get_reward(self.reward_type),self)
exit = v.update_vis()
if(exit):
quit=True
#if(p.has_key('print_state_debug') and p['print_state_debug'] == True):
# print("action: " + str(a) + " r: " + str(r) + \
# " Qsa: " + str(self.qsa.load(s,a)) + " state: " + str(s))
# print("Qs0: " + str(self.qsa.load(s,0)))
# print("Qs1: " + str(self.qsa.load(s,1)))
# print("Qs2: " + str(self.qsa.load(s,2)))
#TODO: put this printout stuff in a function
#the self.episode > 0 check prevents a bug where some of the printouts are empty arrays before the first episode completes
if(self.do_running_printout and print_update_timer < time.time() - 1.0 and self.episode > 0):
self.do_running_printout()
if(self.episode >= p['train_episodes']):
save_and_exit = True
quit=True
if(quit):
break
if(self.sim.is_terminal):
break
if(self.step > p['max_steps']):
break
## s <- s'; a <-- a'
self.s = self.s_prime
self.a = self.a_prime
self.qsa_tmp = self.qsa_prime
if(self.do_recurrence):
self.h = self.h_prime
self.h_prime = self.h_primeprime
#print("Next Step \n")
self.step += 1
self.avg_step_duration = 0.995*self.avg_step_duration + (1.0 - 0.995)*(time.time() - step_duration_timer)
step_duration_timer = time.time()
#end step loop
#compute the number of steps that have a positive reward, as the number of steps that balanced
self.steps_balancing_pole = np.sum(np.array(balance_list) > 0.0000001)
self.steps_balancing_pole_list.append(self.steps_balancing_pole)
self.steps_balancing_pole_avg = 0.995*self.steps_balancing_pole_avg + (1.0 - 0.995)*self.steps_balancing_pole
self.steps_balancing_pole_avg_list.append(self.steps_balancing_pole_avg)
self.r_sum_avg = 0.995*self.r_sum_avg + (1.0 - 0.995)*self.r_sum
if(p['decay_type'] == 'geometric'):
self.epsilon = self.epsilon * p['epsilon_decay']
self.epsilon = max(p['epsilon_min'],self.epsilon)
elif(p['decay_type'] == 'linear'):
self.epsilon = self.epsilon - p['epsilon_decay']
self.epsilon = max(p['epsilon_min'],self.epsilon)
if(p.has_key('learning_rate_decay_type') and p['learning_rate_decay_type'] == 'geometric'):
self.alpha = self.alpha * p['learning_rate_decay']
self.alpha = max(p['learning_rate_min']/p['learning_rate'],self.alpha)
elif(p.has_key('learning_rate_decay_type') and p['learning_rate_decay_type'] == 'linear'):
self.alpha = self.alpha - p['learning_rate_decay']
self.alpha = max(p['learning_rate_min']/p['learning_rate'],self.alpha)
#print debug for episode
m, s = divmod(time.time() - self.start_time, 60)
h, m = divmod(m, 60)
sys.stdout.write(("ep: %d" % self.episode) + (" epsilon: %2.4f" %self.epsilon) + (" avg steps balanced: %2.4f" % self.steps_balancing_pole_avg) + (" max steps balanced: %2.4f" % np.max(np.array(self.steps_balancing_pole_avg_list))) + (" total_steps: %d" % self.step) + (" steps/sec: %2.4f" % (1.0/self.avg_step_duration)))
if(hasattr(self.qsa,'net')):
if(hasattr(self.qsa.net.layer[0],'zeta')):
sys.stdout.write(" L0 zeta: %2.4f" % self.qsa.net.layer[0].zeta)
if(hasattr(self.qsa.net.layer[1],'zeta')):
sys.stdout.write(" L1 zeta: %2.4f" % self.qsa.net.layer[1].zeta)
sys.stdout.write(" l_rate: %2.4f" % (self.alpha*p['learning_rate']))
print(" Time %d:%02d:%02d" % (h, m, s))
sys.stdout.flush()
for i in range(9):
if(self.earlyendepisode[i] > 0 and self.episode == self.earlyendepisode[i] and np.max(np.array(self.steps_balancing_pole_avg_list)) < self.earlyendreward[i]):
print("ending early")
save_and_exit = True
#save stuff (TODO: Put this in a save function)
if(time.time() - save_time > save_interval or save_and_exit == True):
print('saving results...')
self.save_results(p['results_dir'] + p['simname'] + p['version'] + '.h5py',p)
save_time = time.time();
if(quit==True or save_and_exit==True):
break;
self.episode += 1
#end episode loop
self.update_results(p)
obj = np.max(self.results['steps_balancing_pole_avg_list'])
argmax = np.argmax(self.results['steps_balancing_pole_avg_list'])
print("obj: " + str(obj) + " argmax: " + str(argmax))
return self.results
def run_sim(self,p):
sim = cartpole_environment()
reward_type = p.get('reward_type',0)
negative_reward = p['negative_reward']
positive_reward = p['positive_reward']
sim.init(p['vel_bound'],p['angle_vel_bound'],p['pos_bound'],p['g'],p['l'],p['mp'],p['mc'],p['dt'],p['negative_reward'],p['positive_reward'],p['no_reward'],reward_type)
v = visualize_sdl()
v.init_vis(p['display_width'],p['display_height'],p['axis_x_min'],p['axis_x_max'],p['axis_y_min'],p['axis_y_max'],p['fps'])
push_force = p['push_force']
self.vel_bound = p['vel_bound']
self.pos_bound = p['pos_bound']
self.angle_vel_bound = p['angle_vel_bound']
self.mins = np.array([0.0, -self.vel_bound, -self.pos_bound, -self.angle_vel_bound])
self.maxs = np.array([2*math.pi, self.vel_bound, self.pos_bound, self.angle_vel_bound])
self.mins = np.append(np.array([-1.0,-1.0]),self.mins[1:])
self.maxs = np.append(np.array([1.0,1.0]),self.maxs[1:])
self.incorrect_target = p['incorrect_target']
self.correct_target = p['correct_target']
self.num_actions = 3
action=0
while 1:
if(p.has_key('print_state_debug')):
clear()
action_list = np.ones((1,self.num_actions))*self.incorrect_target
action_list[0,action] = self.correct_target
state = sim.sim.state
s = np.append(np.array([math.sin(state[0]),math.cos(state[0])]),state[1:])
s = (np.array(s) - self.mins)/(self.maxs - self.mins)
s = s-0.5
s = s*2.25
s = np.append(s,action_list)
np.set_printoptions(precision=4)
print(str(s[:,np.newaxis]))
print(str(np.array(sim.sim.state)[:,np.newaxis]))
v.delay_vis()
k = v.get_keys()
u = 0.0;
action = 0
if(k[0]):
action = 2
u = -push_force;
if(k[1]):
action = 1
u = push_force;
sim.set_action(u)
sim.step()
#if(sim.state[2] < -4.0):
# sim.state[2] = -4.0
#if(sim.state[2] > 4.0):
# sim.state[2] = 4.0
if(sim.is_terminal):
sim.reset_state()
v.draw_cartpole(sim.get_state(),action,sim.get_reward(reward_type)/positive_reward)
exit = v.update_vis()
if(exit):
break
return