Key Components for Setting Up an HPC Cluster
Head Node (Controller) • Manages job scheduling and resource allocation. • Runs Slurm Controller Daemon (`slurmctld`). Compute Nodes • Execute computational tasks. • Run Slurm Node Daemon (`slurmd`). • Configured for CPUs, GPUs, or specialized hardware. Networking • High-speed interconnect like Infiniband or Ethernet. • Ensures fast communication between nodes. Storage • Centralized storage like NFS, Lustre, or BeeGFS. • Provides shared file access for all nodes. Authentication • UseRead More …
How to configure Slurm Controller Node on Ubuntu 22.04
How to setup HPC-Slurm Controller Node
Refer to Key Components for HPC Cluster Setup; for which pieces you need to setup. This guide provides step-by-step instructions for setting up the Slurm controller daemon (`slurmctld`) on Ubuntu 22.04. It also includes common errors encountered during the setup process and how to resolve them. Step 1: Install Prerequisites To begin, install the required dependencies for Slurm and itsRead More …
What the Hell is Helm? (And Why You Should Care)
What the Hell is Helm? If you’re tired of managing 10+ YAML files for every app, Helm is your new best friend. It’s basically the package manager for Kubernetes — like apt or brew — but for deploying apps in your cluster. Instead of editing raw YAML over and over for each environment (dev, staging, prod), Helm lets you templateRead More …
How to renable the tempurl in latest Cpanel
. As some of you have noticed the new cpanel by default has a bunch of new default settings that nobody likes. FTPserver is not configured out of the box. TempURL is disabled for security reasons. Under certain conditions, a user can attack another user’s account if they access a malicious script through a mod_userdir URL. So they removed it by default.Read More …
How to integrate VROPS with Ansible
Automating VMware vRealize Operations (vROps) with Ansible In the world of IT operations, automation is the key to efficiency and consistency. VMware’s vRealize Operations (vROps) provides powerful monitoring and management capabilities for virtualized environments. Integrating vROps with Ansible, an open-source automation tool, can take your infrastructure management to the next level. In this blog post, we’ll explore how to achieveRead More …
More Cheat Sheet for DevOps Engineers
More Cheat Sheet for DevOps Engineers This guide is focused entirely on the most commonly used Kubernetes YAML examples and why you’d use them in a production or staging environment. These YAML definitions act as the foundation for automating, scaling, and managing containerized workloads. 1. Pod YAML (Basic Unit of Execution) Use this when you want to run a singleRead More …
Cheat Sheet for DevOps Engineers
kubectl Cheat Sheet – In-Depth Guide Managing Kubernetes clusters efficiently requires fluency with kubectl, the command-line interface for interacting with the Kubernetes API. Whether you’re deploying applications, viewing logs, or debugging infrastructure, this tool is your gateway to smooth cluster operations. This in-depth cheat sheet will give you a comprehensive reference of how to use kubectl effectively in real-world operations,Read More …
How to Power Up or Power Down multiple instances in OCI using CLI with Ansible
• This assume you have already configured the OCI cli and added your key to the user inside the OCI interface so your Ubuntu or Jump box can connect to your OCI infrastructure • Ansible ◦ Role to control power up/down instances using the OCI CLI ◦ This assume you already have ansible setup ◦ You will need to install the ansible oci collections .Read More …
How to Deploy Another VPC in AWS with Scalable EC2’s for HA using Terraform
• This will configure a new VPC • Create a new subnet for use • Create a new security group with bunch rules • Create a key pair for your new instances • Allow you to scale your instances cleanly use the count attribute. So we are going to do this a bit different than the other post. As the other post is just deployingRead More …
