Hpc

Drain a node for a persistently faulty GPU — and never for a transient one.

Find wasted GPU allocations on a Slurm cluster and escalate them through alert, drain, and cancel.

Test Slurm priority and backfill policy against a job trace before it reaches a live controller.

Three versions, two config renames that break on restart, and one cgroup change that quietly breaks every job-attribution tool you own.

I built a simulator to tune Slurm priority weights. It kept telling me the weights were not the problem.

Distributed ML training infrastructure for large-scale models: FSDP, gradient checkpointing, mixed precision, and cost-optimized multi-node orchestration.

CUDA-accelerated local and stochastic volatility surface calibration — Dupire's model, Heston, and hybrid approaches for real-time derivatives pricing.