flash-attention/csrc/layer_norm/ln_bwd_512.cu

#include "ln_bwd_kernels.cuh"

// Create backward launch function and register. Macro signature:
//  HIDDEN_SIZE, WTYPE, ITYPE, RTYPE, OTYPE, CTYPE, CTAS_PER_ROW, WARPS_M, WARPS_N, BYTES_PER_LDG, BYTES_PER_LDG_FINAL

REGISTER_BWD_LAUNCHER(  512, fp32, fp32, fp32, fp32, fp32, 1, 4, 1, 16, 4);
REGISTER_BWD_LAUNCHER(  512, fp16, fp32, fp32, fp32, fp32, 1, 4, 1, 16, 4);
REGISTER_BWD_LAUNCHER(  512, fp32, fp16, fp32, fp16, fp32, 1, 4, 1, 16, 4);
REGISTER_BWD_LAUNCHER(  512, fp16, fp16, fp32, fp16, fp32, 1, 4, 1, 16, 4);
REGISTER_BWD_LAUNCHER(  512, fp32, fp16, fp16, fp16, fp32, 1, 4, 1, 16, 4);
REGISTER_BWD_LAUNCHER(  512, fp32, bf16, fp32, bf16, fp32, 1, 4, 1, 16, 4);
REGISTER_BWD_LAUNCHER(  512, bf16, bf16, fp32, bf16, fp32, 1, 4, 1, 16, 4);
REGISTER_BWD_LAUNCHER(  512, fp32, bf16, bf16, bf16, fp32, 1, 4, 1, 16, 4);
REGISTER_BWD_LAUNCHER(  512, fp16, fp16, fp16, fp16, fp32, 1, 4, 1, 16, 4);
REGISTER_BWD_LAUNCHER(  512, bf16, bf16, bf16, bf16, fp32, 1, 4, 1, 16, 4);