submission 735666

#!POPCORN leaderboard amd-moe-mxfp4
#!POPCORN gpu MI355X

"""
MoE MXFP4 follow-up submission.

This keeps the starter `fused_moe(...)` call intact but enables AITER's
alternate OPUS-based MoE sorting path before any `aiter` imports. That keeps
the math and kernel family unchanged while testing a different expert-sorting
backend, which can matter for the public benchmark shapes with large expert
counts and top-k routing.
"""
from __future__ import annotations

import os

os.environ.setdefault("AITER_USE_OPUS_MOE_SORTING", "1")

from task import input_t, output_t

from aiter import ActivationType, QuantType
from aiter.fused_moe import fused_moe


def custom_kernel(data: input_t) -> output_t:
    (
        hidden_states,
        gate_up_weight,
        down_weight,
        gate_up_weight_scale,
        down_weight_scale,
        gate_up_weight_shuffled,
        down_weight_shuffled,
        gate_up_weight_scale_shuffled,
        down_weight_scale_shuffled,
        topk_weights,
        topk_ids,
        config,
    ) = data

    hidden_pad = config["d_hidden_pad"] - config["d_hidden"]
    intermediate_pad = config["d_expert_pad"] - config["d_expert"]

    return fused_moe(
        hidden_states,
        gate_up_weight_shuffled,
        down_weight_shuffled,
        topk_weights,
        topk_ids,
        expert_mask=None,
        activation=ActivationType.Silu,
        quant_type=QuantType.per_1x32,
        doweight_stage1=False,
        w1_scale=gate_up_weight_scale_shuffled,
        w2_scale=down_weight_scale_shuffled,
        a1_scale=None,
        a2_scale=None,
        hidden_pad=hidden_pad,
        intermediate_pad=intermediate_pad,
    )