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submission 754045

jkman2013 · python · License unknown

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Vendorable · source mirrored · license unknownView source →

No package. Vendor the mirrored source: 33 lines, June 9 Researcher Reciprocity License v1.0.

submission_v2.py
curl "https://kernelindex.com/api/v1/implementations/kernelbot-amd-moe-mxfp4-754045?include=source"
interfacepython
Compatibility
measured onAMD Instinct MI355X
declared hardwareAMD Instinct MI355X
architecturesgfx950
dtypesbf16, fp32, fp8_e8m0, int32, mxfp4

Benchmark evidence

1 measurement across 1 GPU, fastest first.

Operation / workload
Hardware
Latency
Rank
Observed
AMD MXFP4 MoEsuite of 7 cases
AMD Instinct MI355X
179.0µs
#438 of 782
2026-04-07

Reported · How evidence levels are derived →

Source and license

sourceavailable
revision digestsha256:cbd9d9a488b94fe6b1e130b3f9ab80a938aa3e2e85ff6690849ac9ffe6774cfa
license declaredunknown
license concludedunknown
authorsjkman2013
imported2026-08-26

Techniques

Extracted from the mirrored source by pattern, never inferred. Each row cites its line.

fp4Optimized MXFP4 MoE v2 for AMD MI355X.

Kernel source

submission_v2.py33 lines
"""
Optimized MXFP4 MoE v2 for AMD MI355X.
- Module-level imports (avoid per-call overhead)
- torch.inference_mode() to disable autograd overhead
- Minimal Python overhead
"""
from task import input_t, output_t
import torch
from aiter import ActivationType, QuantType
from aiter.fused_moe import fused_moe

torch.set_grad_enabled(False)


@torch.inference_mode()
def custom_kernel(data: input_t) -> output_t:
    (hidden_states, _, _, _, _,
     gate_up_weight_shuffled, down_weight_shuffled,
     gate_up_weight_scale_shuffled, down_weight_scale_shuffled,
     topk_weights, topk_ids, config) = data

    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=config["d_hidden_pad"] - config["d_hidden"],
        intermediate_pad=config["d_expert_pad"] - config["d_expert"],
    )
scrolls · 33 lines total

Source code from GPU Mode and the KernelBot dataset · June 9 Researcher Reciprocity License v1.0

Best evidence level for this revision: reported

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