slurmfrag 0.1.1

SLURM Fragmentation Analyzer - Visualize and analyze resource fragmentation across SLURM clusters

slurmfrag 🧩

┌─────────────────────────────────────────────────────────────────────────┐
│  GPU: 25/32 used (78.1%)                                                │
├─────────────────────────────────────────────────────────────────────────┤
│  NODE          USED    TOTAL    USE%   FRAGMENTATION                    │
│  gpunode01        7        8   87.5%   [██████████████████░░]           │
│  gpunode02        8        8  100.0%   [████████████████████]           │
│  gpunode03        4        8   50.0%   [██████████░░░░░░░░░░]           │
├─────────────────────────────────────────────────────────────────────────┤
│  CPU: 374/1536 used (24.3%)                                             │
├─────────────────────────────────────────────────────────────────────────┤
│  gpunode01      124      384   32.3%   [██████░░░░░░░░░░░░░░]           │
│  gpunode02       98      384   25.5%   [█████░░░░░░░░░░░░░░░]           │
│  gpunode03      108      384   28.1%   [██████░░░░░░░░░░░░░░]           │
├─────────────────────────────────────────────────────────────────────────┤
│  Memory: 4.3/6.0 TB used (71.5%)                                        │
├─────────────────────────────────────────────────────────────────────────┤
│  gpunode01     1091     1500   72.7%   [███████████████░░░░░]           │
│  gpunode02     1070     1500   71.3%   [██████████████░░░░░░]           │
│  gpunode03     1074     1500   71.6%   [██████████████░░░░░░]           │
└─────────────────────────────────────────────────────────────────────────┘

Visualize SLURM cluster fragmentation — GPU, CPU, and memory usage per node, plus queue depth and pending requests. Created with the help of Claude Code (Opus 4.5).

Features

• All-in-one — GPU, CPU, memory fragmentation per node in a single view
• Queue status — see pending jobs and total resource requests waiting
• JSON export — for automation and historical analysis
• Logging daemon — run slurmfrag --log to periodically capture JSON snapshots for trend analysis
• Configurable — YAML config for cluster-specific GRES patterns

Quick start

From PyPI:

pip install slurmfrag
slurmfrag

From source:

git clone https://github.com/ferreirafabio/slurmfrag
cd slurmfrag
python -m slurmfrag

Usage

slurmfrag                        # interactive partition picker
slurmfrag -p gpu-partition       # direct analysis
slurmfrag -p gpu-partition --json
slurmfrag --log                  # logging daemon mode

Config

Optional ~/.config/slurmfrag/config.yaml:

gres_patterns:
  gpu:
    pattern: "gpu[^:]*:(\\d+)"  # adjust for your cluster

logging:
  output_dir: "./slurmfrag_logs"
  interval_minutes: 5

Requirements

• Python 3.8+
• SLURM (sinfo, squeue commands)
• PyYAML

License

Apache-2.0