FlashAttention v1 forward pass in CUDA for NVIDIA Turing (SM75)
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Updated
Jul 27, 2026 - Python
FlashAttention v1 forward pass in CUDA for NVIDIA Turing (SM75)
Veda sparse attention for ComfyUI's MiniMax-H3, with a hand-written CUDA kernel for NVIDIA Turing (sm_75) so it runs on RTX 2080 Ti / GTX 16-series and any compute-capability 7.5 card. Upstream Veda only supports SM80+. Measured on one 2080 Ti: 4.16x at 768x768x124, 1.83x at 512x512x124.
Compiler MVP that detects Transformer fusion patterns, generates optimized CUDA kernels with WMMA Tensor Cores, and executes them on real GPU hardware — 10.5 TFLOPs on RTX 2070, correctness validated against PyTorch.
Backward pass CUDA kernels for fused GEMM+Bias+GeLU on SM75 (Turing). Float4 vectorized WMMA kernels validated against PyTorch autograd. 3.1x faster than autograd at M=1024. 24/24 tests passing.
MX450 (TU117) has no Tensor Core in silicon — a reproducible reverse-engineering case study: Falcon microcode, register-level proofs, and why every HMMA library is 18x slower. 三语文档。
Instruction-level Tensor Core micro-kernel engineering on SM75 (RTX 2070), including PTX manual emission, shared-memory staging, and hardware-aware auto-tuning.
Reproducible FreeToken MoE expert-offload compatibility lab and benchmarks for NVIDIA Turing sm_75.
Qwen3.8-27B 双 RTX 2080 Ti 22GB + NVLink 的 vLLM 部署(上游 main 路线):SM75 移植、MTP 下保住 FULL cudagraph(单并发解码 54.1→37.5 ms/步)、256K/500K 上下文与 128K tiered offload profile
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