22
Mar
2026
Visualizing Dense and MoE Models IB Communication
TL;DR — I captured per-port, 10-millisecond resolution InfiniBand traffic during FSDP fine-tuning of Qwen-7B (dense) ...
HPC/AI @Microsoft
TL;DR — I captured per-port, 10-millisecond resolution InfiniBand traffic during FSDP fine-tuning of Qwen-7B (dense) ...
If you deploy GPU VMs on Azure using VMSS Uniform mode, three settings can make the difference between a successful a...
We implement a ring allreduce algorithm from scratch in Python, run it on 16 NVIDIA H100 GPUs across 2 nodes with Inf...
Hands-on experiments on an NVIDIA H100 GPU reveal why KV cache — not model weights — dominates GPU memory during infe...
When scaling down an AKS node pool, which node gets deleted? The answer depends on how you trigger the scale-in and w...
TL;DR — We benchmarked NCCL Ring, Tree, and Default allreduce algorithms across 1–8 nodes (8–64 H100 GPUs) on Azure N...