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== Parallelism in Elixir == Parallelism is a fundamental concept in Elixir, a functional programming language built on the Erlang virtual machine (BEAM). Elixir provides powerful concurrency primitives that enable developers to leverage the full potential of multi-core processors and distribute workload across multiple machines. === Processes === In Elixir, parallelism is achieved through lightweight processes, not to be confused with operating system processes. Elixir processes are concurrent and isolated units of execution, which are managed by the Erlang virtual machine. These processes communicate with each other by sending and receiving messages. [[Processes in Elixir|Learn more about processes in Elixir.]] === Concurrency Primitives === Elixir provides several concurrency primitives that simplify parallel programming: ==== Tasks ==== A task is a concurrent computation that represents a unit of work. Tasks are executed asynchronously and enable developers to express parallelism easily. [[Tasks in Elixir|Learn more about tasks in Elixir.]] ==== Agents ==== Agents are mutable state containers that allow concurrent access and modification. They provide a higher-level abstraction for shared state and ensure synchronization and consistency. [[Agents in Elixir|Learn more about agents in Elixir.]] ==== GenServer ==== GenServer is a generic server implementation that simplifies the creation of concurrent stateful processes. It provides a callback-based API and handles message passing, state management, and error handling. [[GenServers in Elixir|Learn more about GenServer in Elixir.]] === Distributed Computing === Elixir embraces distributed computing by providing robust mechanisms for building fault-tolerant, distributed systems. By leveraging the built-in abstractions like processes and message passing, Elixir makes it easy to scale applications across multiple nodes. [[Distributed Computing in Elixir|Learn more about distributed computing in Elixir.]] === Parallel Processing === Parallel processing can be achieved in Elixir by splitting a computational task into smaller subtasks and executing them concurrently. Elixir provides libraries and abstractions, such as Task.async_stream/3 and Flow, to facilitate parallel processing and handle the distribution of work. [[Parallel Processing in Elixir|Learn more about parallel processing in Elixir.]] === Load Balancing === Elixir allows load balancing across multiple processes and machines. By distributing workloads dynamically, Elixir enables efficient utilization of available resources and ensures that no single process or machine becomes a bottleneck. [[Load Balancing in Elixir|Learn more about load balancing in Elixir.]] === Fault Tolerance === Elixir’s actor model and support for distributed computing contribute to building fault-tolerant systems. By isolating processes and handling failures gracefully, Elixir enables applications to remain resilient even in the face of errors. [[Fault Tolerance in Elixir|Learn more about fault tolerance in Elixir.]] === Conclusion === Parallelism is at the core of Elixir's design philosophy. With its lightweight processes, concurrency primitives, and support for distributed computing, Elixir provides a robust foundation for building highly concurrent and scalable applications. [[Elixir|Back to Elixir Wiki homepage.]]
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