AWS ParallelCluster Specialized2019年〜
An open-source tool for building and managing HPC (High Performance Computing) clusters on AWS
What It Does
AWS ParallelCluster is an open-source cluster management tool that automatically builds HPC clusters on AWS. It sets up the Slurm job scheduler, shared file systems (EFS, FSx for Lustre), and auto-scaling compute nodes from a single configuration file. Compute nodes automatically scale up and down based on job submission volume.
Use Cases
Used for scientific computing (computational fluid dynamics, molecular dynamics), genome analysis, weather simulation, financial risk calculation, and machine learning training.
Everyday Analogy
Think of it like a rental supercomputer. You rent as many computers (nodes) as you need when you need them, run your calculations, and return them when done. The number of computers automatically scales based on the computational workload.
What Is ParallelCluster?
AWS ParallelCluster is a tool that automates HPC cluster construction. You define the head node, compute nodes, storage, and network in a YAML configuration file and deploy it as a CloudFormation stack with the `pcluster create-cluster` command. When you submit jobs through Slurm, compute nodes automatically launch based on the queue.
Scaling and Storage
ParallelCluster auto-scales compute nodes based on the number of pending jobs in the queue. Using Spot Instances can reduce compute costs by up to 90% compared to on-demand pricing. Shared storage options include FSx for Lustre (high throughput), EFS (general purpose), and EBS (head node). EFA (Elastic Fabric Adapter) can also accelerate MPI communication. To learn systematically from basics to advanced topics on scaling and storage, reference books (Amazon) are a great resource.
Getting Started
Install the pcluster CLI via pip and create a YAML configuration file. Create the cluster with `pcluster create-cluster` and SSH into the head node. Submit jobs with Slurm's sbatch command, and compute nodes automatically launch to execute them.
Things to Watch Out For
- ParallelCluster itself is a free open-source tool. Charges apply for AWS resources like EC2, EBS, and FSx
- Costs can be significantly reduced for workloads that can tolerate Spot Instance interruptions (checkpoint-capable)
