William LinandClaude Opus 5.5
500cf3b764
- fastvideo-kernel/wan22_vae_decode: the Wan2.2 (TI2V-5B) VAE decoder on sm_100a / sm_103a at 704x1248, built on first use against fastvideo-kernel's CUTLASS submodule. It frees intermediates early and carries 4 latent frames per pass: a 5 s video peaks at 20.3 GiB, down from 94.6 GiB in the kernel's first version, with the same output. - WanVAEConfig.decode_kernel routes AutoencoderKLWan.decode through it where it applies (bf16 with fp32 accumulation, about 7x faster than the fp32 decode on a B300, PSNR 61-63 dB, SSIM 0.998 against it); decode_kernel_parallel splits the decode over the sequence-parallel group (2, 4 or 8 GPUs) and broadcasts the video, with the ranks agreeing on whether every one of them could build the kernel. - PAN2's DiT runs fused Triton kernels for Q/K RMSNorm + RoPE and LayerNorm + modulation (pan2_fusions, set_fused_kernels). - PAN2PipelineConfig turns all three on (vae_decode_kernel, vae_decode_kernel_parallel, dit_fused_kernels). - VideoGenerator copies a decoded RGB video's frames to the host once instead of once per frame. - The PAN2 presets sample at guidance 2.5, the reference launcher's default since 2026-10-23. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2 lines
230 B
JSON
2 lines
230 B
JSON
{"languages":["cuda_cpp"],"entry_point":"binding.cpp::run","destination_passing_style":true,"compile_options":{"cflags":["-O3","-std=c++17"],"cuda_cflags":["-O3","-std=c++17","-lineinfo"],"ld_flags":["-lcuda"]},"dependencies":[]}
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