nemo-mbridge-perf-moe-vlm-training

Compare FSDP-first and 3D-parallel paths for MoE VLM training in Megatron Bridge.

Updated Apr 16, 2026
One-click install
npx skills add https://github.com/sayalinvidia/sayali-skills-test --skill nemo-mbridge-perf-moe-vlm-training
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: nemo-mbridge-perf-moe-vlm-training
Source: https://github.com/sayalinvidia/sayali-skills-test/tree/main/skills/nemo-mbridge-perf-moe-vlm-training
Command: npx skills add https://github.com/sayalinvidia/sayali-skills-test --skill nemo-mbridge-perf-moe-vlm-training

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Practical guidance for training MoE VLMs in Megatron Bridge. Compares FSDP and 3D-parallel approaches, using rounded lessons from Qwen3-VL, Qwen3-Next, and other multimodal experiments.

Core Features & Use Cases

  • Guidance on choosing between FSDP and 3D-parallel for MoE VLM training
  • Tuning tips on memory, recompute, and CUDA graph considerations
  • Real-world use case: selecting best parallel strategy for GB200/B200 scale VLMs

Quick Start

Execute a two-path MoE VLM training plan on Megatron Bridge by evaluating FSDP-first and 3D-parallel configurations and documenting their trade-offs.

Frequently Asked Questions about nemo-mbridge-perf-moe-vlm-training

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
Should I use FSDP or 3D-parallel for MoE VLM training?▼

FSDP is typically preferred for simpler setups, while 3D-parallel offers finer control over memory and topology for large-scale MoE VLM training. This Skill compares both paths to help you evaluate trade-offs and select the best strategy.

How do I configure CUDA graphs for MoE VLM training?▼

To configure CUDA graphs for MoE VLM training, you must apply specific tuning tips for memory management and recompute considerations. This Skill provides guidance on avoiding MoE-specific pitfalls and optimizing dispatcher choices for production-ready configurations.

Does Megatron Bridge support Qwen3-VL style MoE training on GB200 hardware?▼

Yes, Megatron Bridge supports Qwen3-VL style MoE VLM training on GB200 or B200 hardware. This Skill details the required topology layouts, dispatcher choices, and memory management configurations for these specific platforms.

What are common MoE-specific pitfalls during 3D-parallel VLM training?▼

Common MoE-specific pitfalls during 3D-parallel VLM training involve memory management overhead and dispatcher misconfigurations. This Skill specifies requirements for production-ready configurations to help you avoid these layout and memory bottlenecks.

How do I plan a two-path MoE VLM training workflow?▼

You plan a two-path MoE VLM training workflow by executing and evaluating both FSDP-first and 3D-parallel configurations in Megatron Bridge. This Skill guides you through documenting their trade-offs to select the best parallel strategy.