TOOLS / INFRASTRUCTURE & COMPUTE / TOOL #51

Enterprise LLM FlashDecoding & Sequence Parallelism Simulator

Simulate FlashDecoding split-KV parallel attention across 64k-128k context windows: parallelize keys and values across Streaming Multiprocessors, execute partial log-sum-exp reduction, and slash decoding latency by up to 8x.

FlashDecoding Parallel Execution Profile

Simulate split-KV parallel chunk execution across NVIDIA H100, B200, and A100 nodes for Meta Llama-3 70B and DeepSeek-R1 671B MoE architectures.

Decode Speedup: Up to 8.2x
SM Occupancy: 100% Saturation
Token Latency: Sub-10ms @ 128K