By Hamza in HPC Cloud Release Notes — Oct 19, 2025

HPC Cloud Updates WE 19 Oct 2025

Updates to AWS, Azure & GCP in the last week relevant for HPC practitioners. PCS upgrades Slurm, Spot Placement API goes live and Google provide IBM Symphony Host Factory connectors.

AWS

PCS adds support for Slurm 25.05

AWS Parallel Computing Service (PCS) now supports Slurm v25.05 - AWS

Discover more about what’s new at AWS with AWS Parallel Computing Service (PCS) now supports Slurm v25.05

Amazon Web Services, Inc.

EC2 Capacity Manager launched. It’s about time AWS had something like this, it felt like a serious weakness compared to other CSPs

Announcing Amazon EC2 Capacity Manager - AWS

Discover more about what’s new at AWS with Announcing Amazon EC2 Capacity Manager

Amazon Web Services, Inc.

I’m not 100% sure what’s new here but it looks like you can now turn off SMT/HT on instances type that have on by default (which you always could) but for operating systems licensed by vCPU (which I guess maybe you couldn’t before?)

Amazon EC2 now supports Optimize CPUs for license-included instances - AWS

Discover more about what’s new at AWS with Amazon EC2 now supports Optimize CPUs for license-included instances

Amazon Web Services, Inc.

New Regional Instances: C8g in Milan, Hong Kong, Osaka and Melbourne, C8gn in Malysia, Thailand, and Sydney, R8g in London, Melbourne and Sao Paolo, M7i in Milan, M8g in Paris, Osaka, Canada and Bahrain