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spatial.py
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spatial.py
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import numpy as np
from scipy.stats import rv_discrete
from matplotlib import pyplot as plt
import cvxpy as cp
import utils
import pickle
# from tempfile import TemporaryFile
def run_max_weight( time_steps, N, pmf_cust, pmf_serv, W, alpha_values, gurobi_flag = 1 ):
arrival_ids = np.arange(0,N,1)
cust_process = rv_discrete(name='cust_arr', values=(arrival_ids, pmf_cust))
serv_process = rv_discrete(name='serv_arr', values=(arrival_ids, pmf_serv))
Q_paths = []
C_paths = []
for alpha in alpha_values:
if gurobi_flag:
res = utils.max_weight_gurobi( time_steps, N, cust_process, serv_process, W, alpha )
else:
res = utils.max_weight( time_steps, N, cust_process, serv_process, W, alpha )
Q_paths.append(res["QP"])
C_paths.append(res["CP"])
return({"Q_paths": Q_paths,"C_paths":C_paths})
def run_batching( time_steps, N, pmf_cust, pmf_serv, W, Tbatches, gurobi_flag = 1 ):
arrival_ids = np.arange(0,N,1)
cust_process = rv_discrete(name='cust_arr', values=(arrival_ids, pmf_cust))
serv_process = rv_discrete(name='serv_arr', values=(arrival_ids, pmf_serv))
Q_paths = []
C_paths = []
for T in Tbatches:
if gurobi_flag:
res = utils.batching_gurobi( time_steps, N, cust_process, serv_process, W, T )
else:
res = utils.batching( time_steps, N, cust_process, serv_process, W, T )
Q_paths.append(res["QP"])
C_paths.append(res["CP"])
return({"Q_paths": Q_paths,"C_paths":C_paths})
def plot_from_sim_paths(file_name):
with open(file_name,'rb') as f:
M_res,B_res, N, W, pmf_cust, pmf_serv = pickle.load(f)
print(M_res)
Q_paths_M = M_res["Q_paths"]
C_paths_M = M_res["C_paths"]
Q_paths_B = B_res["Q_paths"]
C_paths_B = B_res["C_paths"]
(average_cost_M, average_queue_M) = utils.average_paths(C_paths_M,Q_paths_M)
(average_cost_B, average_queue_B) = utils.average_paths(C_paths_B,Q_paths_B)
[Ex,fluid_sol] = run_extremes(N,W,pmf_cust,pmf_serv)
utils.qc_plot(Ex,fluid_sol,average_queue_B,average_cost_B,average_queue_M,average_cost_M)
def generate_weights(N_grid, is_spatial = 0):
Weights = np.zeros(shape=(N_grid,N_grid))
if is_spatial:
X = np.arange(0.5,N_grid,1)
Y = np.arange(0.5,N_grid,1)
cell_locs = []
for i in range(N_grid):
for j in range(N_grid):
cell_locs.append([X[i],Y[j]])
N_cells = N_grid*N_grid
Weights = np.zeros(shape=(N_cells,N_cells))
for i in range(N_cells):
for j in range(N_cells):
Weights[i,j] = np.sqrt((cell_locs[i][0] - cell_locs[j][0])**2 + (cell_locs[i][1] - cell_locs[j][1])**2)
print("Spatial",Weights)
else:
rand_weights = np.random.rand(N_grid, N_grid)
N_cells = N_grid*N_grid
for counter in range(N_cells):
for i in range(N_grid):
for j in range(N_grid):
for k in range(N_grid):
rand_weights[i,j] = min(rand_weights[i,j],rand_weights[i,k] + rand_weights[k,j] )
print("Random",rand_weights)
Weights = rand_weights
return(Weights)
# Problem setup
N = 4
is_spatial = 1
W = generate_weights(N,is_spatial)
time_steps_M = 100000
time_steps_B = 100000
Tbatches = np.asarray( [1,2, 3, 4, 5, 8, 10, 12, 15, 18, 20, 30, 40, 50, 60, 100 ] )
# alpha_values = np.asarray( [0, 0.2, 0.25, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.8,0.9,0.95] )
alpha_values = np.asarray( [0, 0.2, 0.25, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.675, 0.7, 0.725, 0.75, 0.8, 0.825, 0.85, 0.875, 0.9, 0.925, 0.95] )
if is_spatial == 1:
N = N*N
pmf_cust = np.random.rand(N)
pmf_cust = pmf_cust/(np.sum(pmf_cust))
pmf_serv = np.random.rand(N)
pmf_serv = pmf_serv/(np.sum(pmf_serv))
# pmf_cust = [0.19,0.31,0.42,0.08]
# pmf_serv = [0.09,0.23,0.41,0.27]
print(pmf_cust,pmf_serv)
M_res = run_max_weight( time_steps_M, N, pmf_cust, pmf_serv, W, alpha_values,0 )
Q_paths_M = M_res["Q_paths"]
C_paths_M = M_res["C_paths"]
B_res = run_batching( time_steps_B, N, pmf_cust, pmf_serv, W, Tbatches,0 )
Q_paths_B = B_res["Q_paths"]
C_paths_B = B_res["C_paths"]
(average_cost_M, average_queue_M) = utils.average_paths(C_paths_M,Q_paths_M)
(average_cost_B, average_queue_B) = utils.average_paths(C_paths_B,Q_paths_B)
with open('/storage/home/hcoda1/7/vsivaraman3/p-smaguluri3-0/spatial-matching-sim-vishal/sim_paths_spatial.pkl', 'wb') as f:
# with open('./sim_paths.pkl', 'wb') as f:
pickle.dump([M_res,B_res, N, W, pmf_cust, pmf_serv], f)
print("Run completed successfully")