submission 677065
Anny-hudi · python · License unknown
Use it
Vendorable · source mirrored · license unknownView source →
No package. Vendor the mirrored source: 49 lines, June 9 Researcher Reciprocity License v1.0.
submission.py
curl "https://kernelindex.com/api/v1/implementations/kernelbot-amd-mxfp4-mm-677065?include=source"interfacepython
Compatibility
measured onAMD Instinct MI355X
declared hardwareAMD Instinct MI355X
architecturesgfx950
dtypesbf16, mxfp4
Benchmark evidence
1 measurement across 1 GPU, fastest first.
Operation / workload
Hardware
Latency
Rank
Observed
Reported · How evidence levels are derived →
Source and license
sourceavailable
revision digestsha256:687ec324940df0a0f77a34f646e1c72ebaeb42011942a1350f2acf1db494b92a
license declaredunknown
license concludedunknown
authorsAnny-hudi
imported2026-08-26
Kernel source
submission.py49 lines
#!POPCORN leaderboard amd-mxfp4-mm
#!POPCORN gpu MI355X
"""
优化版本2:条件性 contiguous() + 减少重复导入
优化点:
1. 只在必要时调用 contiguous()
2. 将导入移到函数外部(避免每次调用都导入)
3. 内联量化函数(减少函数调用开销)
预期提升:5-12%(比 v1 更好)
"""
import aiter
from aiter import QuantType, dtypes
from aiter.ops.triton.quant import dynamic_mxfp4_quant
from aiter.utility.fp4_utils import e8m0_shuffle
from task import input_t, output_t
def custom_kernel(data: input_t) -> output_t:
"""
Optimized: Conditional contiguous() + reduced overhead.
"""
A, B, B_q, B_shuffle, B_scale_sh = data
# 🔥 优化1: 条件性 contiguous()
# 只在必要时才调用,避免不必要的内存拷贝
if not A.is_contiguous():
A = A.contiguous()
if not B.is_contiguous():
B = B.contiguous()
# 🔥 优化2: 内联量化逻辑,减少函数调用开销
A_fp4, A_scale_raw = dynamic_mxfp4_quant(A)
A_scale_sh = e8m0_shuffle(A_scale_raw)
A_q = A_fp4.view(dtypes.fp4x2)
A_scale_sh = A_scale_sh.view(dtypes.fp8_e8m0)
out_gemm = aiter.gemm_a4w4(
A_q,
B_shuffle,
A_scale_sh,
B_scale_sh,
dtype=dtypes.bf16,
bpreshuffle=True,
)
return out_gemm
scrolls · 49 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
JSON