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# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
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# software distributed under the License is distributed on an
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from __future__ import annotations

import time

import ray

# Initialize Ray
ray.init()


# Define a computationally intensive task
@ray.remote(num_cpus=1)
def heavy_task(x):
    """
    Simulates a heavy workload by performing a CPU-bound operation.
    This example calculates the sum of squares for a range of numbers.
    """
    total = 0
    for i in range(x):
        total += i * i
    time.sleep(1)  # Simulate some work duration
    return total


# Generate a large number of tasks
num_tasks = 1000
results = []
for _i in range(num_tasks):
    results.append(heavy_task.remote(1000000))

# Retrieve results (this will trigger autoscaling if needed)
outputs = ray.get(results)

# Print the sum of the results (optional)
print(f"Sum of results: {sum(outputs)}")

# Terminate the process
ray.shutdown()
