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"""
Test all 5 predefined scenarios from the project requirements.
"""
from src.core.simulation import Simulator
from src.core.scenarios import (
get_scenario_1, get_scenario_2, get_scenario_3,
get_scenario_4, get_scenario_5_variations
)
def print_separator(char="=", length=80):
"""Print a separator line."""
print(char * length)
def print_results(scenario_name: str, results, config):
"""Print simulation results in a formatted way."""
print(f"\n{scenario_name}")
print_separator("-")
print(f"\n📊 Configuration:")
print(f" λ = {config.arrival_rate:.6f} req/ms")
print(f" μc = {config.coordinator_service_rate:.6f} req/ms")
print(f" p = {config.coordinator_exit_probability:.3f}")
print(f" Servers: {len(config.server_service_rates)}")
for i, (mu, q) in enumerate(zip(config.server_service_rates, config.server_routing_probs)):
print(f" Server {i+1}: μ={mu:.6f}, q={q:.3f}")
# Theoretical utilizations
lambda_ext = config.arrival_rate
rho_c = lambda_ext / config.coordinator_service_rate
print(f"\n📐 Theoretical Utilizations:")
print(f" ρc = {rho_c:.4f}")
for i, (mu, q) in enumerate(zip(config.server_service_rates, config.server_routing_probs)):
lambda_i = lambda_ext * q
rho_i = lambda_i / mu
status = "✅ STABLE" if rho_i < 1 else "❌ UNSTABLE"
print(f" ρ{i+1} = {rho_i:.4f} {status}")
# Simulation results
print(f"\n📈 Simulation Results:")
print(f" Requests completed: {results.total_requests_completed}")
print(f" Average system time: {results.average_system_time:.2f} ms")
print(f"\n Coordinator:")
coord = results.coordinator_stats
print(f" Utilization: {coord['utilization']:.4f}")
print(f" Avg wait: {coord['average_wait_time']:.2f} ms")
print(f" Avg service: {coord['average_service_time']:.2f} ms")
for server_id, stats in results.server_stats.items():
print(f"\n {server_id}:")
print(f" Utilization: {stats['utilization']:.4f}")
print(f" Avg wait: {stats['average_wait_time']:.2f} ms")
print(f" Avg service: {stats['average_service_time']:.2f} ms")
print(f" Requests processed: {stats['total_departures']}")
def main():
print_separator()
print("QUEUEING NETWORK SIMULATION - ALL SCENARIOS TEST")
print_separator()
# Scenario 1
print("\n\n🔴 SCENARIO 1: Single Fast Server (Instability Test)")
print_separator()
config1 = get_scenario_1()
sim1 = Simulator(config1)
results1 = sim1.run()
print_results("Scenario 1 Results", results1, config1)
# Scenario 2
print("\n\n🟡 SCENARIO 2: Fast + Slow Server")
print_separator()
config2 = get_scenario_2()
sim2 = Simulator(config2)
results2 = sim2.run()
print_results("Scenario 2 Results", results2, config2)
# Scenario 3
print("\n\n🟢 SCENARIO 3: Three Slow Servers")
print_separator()
config3 = get_scenario_3()
sim3 = Simulator(config3)
results3 = sim3.run()
print_results("Scenario 3 Results", results3, config3)
# Scenario 4
print("\n\n🔵 SCENARIO 4: Fast + Medium Server")
print_separator()
config4 = get_scenario_4()
sim4 = Simulator(config4)
results4 = sim4.run()
print_results("Scenario 4 Results", results4, config4)
# Scenario 5 - Parameter variations
print("\n\n🟣 SCENARIO 5: Parameter Sensitivity Analysis")
print_separator()
variations = get_scenario_5_variations()
for desc, config5 in variations:
print(f"\n\n Variation: {desc}")
print(" " + "-" * 76)
sim5 = Simulator(config5)
results5 = sim5.run()
print_results(f" {desc}", results5, config5)
# Summary comparison
print("\n\n" + "=" * 80)
print("SUMMARY COMPARISON (Scenarios 1-4)")
print("=" * 80)
scenarios_data = [
("Scenario 1", results1, config1),
("Scenario 2", results2, config2),
("Scenario 3", results3, config3),
("Scenario 4", results4, config4),
]
print(f"\n{'Scenario':<15} {'Servers':<10} {'Avg Time (ms)':<15} {'Completed':<12} {'Coord ρ':<10} {'Max Server ρ':<15}")
print("-" * 80)
for name, results, config in scenarios_data:
num_servers = len(config.server_service_rates)
avg_time = results.average_system_time
completed = results.total_requests_completed
coord_util = results.coordinator_stats['utilization']
max_server_util = max(s['utilization'] for s in results.server_stats.values())
print(f"{name:<15} {num_servers:<10} {avg_time:<15.2f} {completed:<12} {coord_util:<10.4f} {max_server_util:<15.4f}")
print("\n" + "=" * 80)
print("✅ All scenarios completed successfully!")
print("=" * 80)
if __name__ == "__main__":
main()