GeoWave3D

AI 科研综合平台

GeoWave3D/main main

CUDA 13.1 · NVIDIA L20

src/kernel.cu AI 建议

Experiment 014

Completed Testing Agent

8th-order Acoustic Simulation

Configuration

Backend

CUDA 13.1

Precision

FP32

Grid

951 × 501 × 510

Grid Spacing

10 m

Time Step

1 ms

Steps

1500

Execution

Agent

Testing Agent

GPU

NVIDIA L20 · 89%

Code

a83c12f

Started

14:02:14

End

14:02:27

Results

Total Runtime

12.84 s

Kernel Runtime

6.48 s

Kernel Step

4.32 ms

Memory

8.7 GB

Max Error

2.1e-3

Throughput

89.4 GB/s

Artifacts

Data wavefield_001.npy Benchmark benchmark.json Log run.log Figure wavefield_t1.5s.svg

Wavefield · t = 1.5 s

Completed Visualization Agent

z-slice 255 · 8 阶声波快照

Metadata

Grid951×501×510

Time1.5 s

ColormapSeismic

Range−1.0 / +1.0

Grid Spacing10 m

Provenance

Generated ByVisualization Agent

ModelGemini

SkillWavefield Plot

Inputwavefield_001.npy

ExperimentExperiment 014

Codea83c12f

AI Analysis

波前呈椭圆近似理想；x 方向采样在远场略低于 Nyquist，建议网格加密或插值后再发布。

Benchmark L20

Completed Performance Agent

NVIDIA L20 · 1500 Steps

配置	ms/step	GB/s	加速比
基线（全局读 ×24）	5.82	39.1	1.00×
共享内存 tile	4.31	52.8	1.35×
向量化 float4	3.64	62.5	1.60×
__launch_bounds__(128)	3.12	72.9	1.87×
常量内存 FD_W	3.05	74.6	1.91×
CUDA Graph 捕获	2.94	77.4	1.98×

Source Experiment 014 · Artifact perf_scaling_L20.json · Code a83c12f

Code Analysis · src/kernel.cu

Completed Code Analysis Agent

由 Code Analysis Agent 以 GPT-5.6 分析 · 产出 analysis/findings.json

Overview

WARN2 Warnings · 1 Hotspot · src/kernel.cu · 33 行 · 8 阶声波 stencil · FP32

Structure

INFO单内核 stencil 设计，__constant__ 权重 + __restrict__ 指针提示无别名。

INFOleapfrog 时间步进在 L31 与 solver.cpp 的 swap 保持一致。

Hotspots

HOTkernel.cu:26 热点循环 · 8 阶模板每网格点 24 次全局读 · 建议共享内存 tile 削减访存。

Risks

WARNPotential uncoalesced memory access · kernel.cu:26 · Medium

WARNRegister pressure from 8th-order expansion · kernel.cu:25 · Medium

Correctness

OKhalo guard 与 8 阶模板索引范围一致；跳界处理正确。

Dependencies

DEPkernel.cu ← solver.cpp · wavefields.h · __constant__ FD_W

DEPLaunched from solver.cpp:21 · run_experiment 内核启动

main src/kernel.cu Ln 26, Col 1UTF-8LFC++ / CUDA空格: 2