A workflow that distributes tasks across multiple LLM calls simultaneously, aggregating results to handle complex or large-scale operations efficiently.

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Quick Start

1

Install Package

First, install the PraisonAI Agents package:

pip install praisonaiagents
2

Set API Key

Set your OpenAI API key as an environment variable in your terminal:

export OPENAI_API_KEY=your_api_key_here
3

Create a file

Create a new file app.py with the basic setup:

from praisonaiagents import Agent, Task, PraisonAIAgents
from datetime import datetime
import asyncio

def process_time():
    """Simulate processing"""
    current_time = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
    print(f"Processing at: {current_time}")
    return f"Processed at {current_time}"

# Create parallel processing agents
agent1 = Agent(
    name="Processor 1",
    role="Time collector",
    goal="Get the time and return it",
    tools=[process_time]
)

agent2 = Agent(
    name="Processor 2",
    role="Time collector",
    goal="Get the time and return it",
    tools=[process_time]
)

agent3 = Agent(
    name="Processor 3",
    role="Time collector",
    goal="Get the time and return it",
    tools=[process_time]
)

aggregator = Agent(
    name="Aggregator",
    role="Result aggregator",
    goal="Collect all the processed time from all tasks"
)

# Create parallel tasks with memory disabled
task1 = Task(
    name="process_1",
    description="Use process_time tool to get the time",
    expected_output="processed time",
    agent=agent1,
    is_start=True,
    async_execution=True
)

task2 = Task(
    name="process_2",
    description="Use process_time tool to get the time",
    expected_output="processed time",
    agent=agent2,
    is_start=True,
    async_execution=True
)

task3 = Task(
    name="process_3",
    description="Use process_time tool to get the time",
    expected_output="processed time",
    agent=agent3,
    is_start=True,
    async_execution=True
)

aggregate_task = Task(
    name="aggregate",
    description="Collect all the processed time from all tasks",
    expected_output="Output all the processed time from all tasks and just the time",
    agent=aggregator,
    context=[task1, task2, task3]
)

async def main():

    # Create workflow manager
    workflow = PraisonAIAgents(
        agents=[agent1, agent2, agent3, aggregator],
        tasks=[task1, task2, task3, aggregate_task],
        process="workflow"
    )

    # Run parallel workflow
    results = await workflow.astart()

    # Print results
    print("\nParallel Processing Results:")
    for task_id, result in results["task_results"].items():
        if result:
            print(f"Task {task_id}: {result.raw}")

# Run the async main function
if __name__ == "__main__":
    asyncio.run(main())
4

Start Agents

Type this in your terminal to run your agents:

python app.py

Requirements

  • Python 3.10 or higher
  • OpenAI API key. Generate OpenAI API key here. Use Other models using this guide.
  • Basic understanding of Python and async programming

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Understanding Parallelisation

What is Parallelisation?

Parallelisation enables:

  • Concurrent execution of multiple tasks
  • Improved performance through parallel processing
  • Efficient handling of independent operations
  • Aggregation of parallel task results

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Features

Parallel Execution

Run multiple tasks simultaneously for improved performance.

Async Support

Built-in support for asynchronous execution.

Result Aggregation

Combine results from parallel tasks efficiently.

Process Control

Monitor and manage parallel task execution.

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Configuration Options

# Create a parallel task
task = Task(
    name="parallel_task",
    description="Task to run in parallel",
    expected_output="Task result",
    agent=agent,
    is_start=True,
    async_execution=True  # Enable parallel execution
)

# Create an aggregator task
aggregator_task = Task(
    name="aggregate",
    description="Aggregate results from parallel tasks",
    expected_output="Combined results",
    agent=aggregator,
    context=[task1, task2, task3]  # Reference parallel tasks
)

# Async workflow execution
async def run_workflow():
    workflow = PraisonAIAgents(
        agents=[agent1, agent2, aggregator],
        tasks=[task1, task2, aggregator_task],
        process="workflow",
        verbose=True
    )
    results = await workflow.astart()

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Troubleshooting

Execution Issues

If parallel execution fails:

  • Check async configuration
  • Verify task independence
  • Monitor resource usage

Result Aggregation

If aggregation is incorrect:

  • Review task outputs
  • Check context connections
  • Verify aggregator logic

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Next Steps

AutoAgents

Learn about automatically created and managed AI agents

Mini Agents

Explore lightweight, focused AI agents

For optimal results, ensure your parallel tasks are truly independent and your system has sufficient resources to handle concurrent execution.

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