SLURM is an open-source workload manager designed for Linux clusters of all sizes. It provides job scheduling and resource management to optimize cluster utilization.

SLURM (Simple Linux Utility for Resource Management) is a highly scalable cluster management and job scheduling system for large and small Linux clusters. It is used by some of the world’s most powerful supercomputers.

• Open-source and actively developed
• Scalable to tens of thousands of nodes
• Flexible job scheduling options
• Supports job arrays, reservations, and dependencies
• Plugins available for authentication, accounting, and more

• Node – A single computer in the cluster.
• Partition – A group of nodes (like a queue).
• Job – A user-submitted task to be run on the cluster.
• Job Step – A component of a job, such as a single MPI process.
• Scheduler – The component that determines which jobs run when.

Here are some commonly used SLURM commands:

Create a job script (e.g., `job.sh`):

```bash #!/bin/bash #SBATCH –job-name=test_job #SBATCH –output=result.out #SBATCH –error=result.err #SBATCH –time=01:00:00 #SBATCH –partition=standard #SBATCH –ntasks=1

echo “Hello from SLURM job”