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fix param parsing issue when layer/blob name exceeds 255 #4236

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merged 2 commits into from Oct 7, 2022

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@ZhangGe6 ZhangGe6 commented Oct 4, 2022

描述

在对.param解析时,由于为layer_nameblob_name预分配的长度为255,因此当它们的长度超过255时,会发生网络解析失败。

// src/net.cpp
char layer_name[256];
SCAN_VALUE("%255s", layer_type)
...
char bottom_name[256];
SCAN_VALUE("%255s", bottom_name)

复现

该问题可基于以下模型和步骤复现:

原始ONNX模型movenet.onnx,是由Google提供的预训练movenet tflitetensorflow-onnx转换得到(并进一步去除了前后处理算子)

  1. 使用onnx2ncnn转换为ncnn模型
onnx2ncnn movenet.onnx movenet.param movenet.bin

得到movenet.parammovenet.bin

  1. 使用ncnnoptimze优化模型
ncnnoptimize movenet.param movenet.bin movenet_opt.param movenet_opt.bin 0

此时会发生模型解析错误:

parse bottom_count failed
load_model error at layer 2, parameter file has inconsistent content.

修改

定位问题在于,第一步转化得到的movenet.param文件中,多数层的layer_name和blob_name超过255,导致第二步.param文件无法正常解析。故对onnx2ncnn.cpp做以下修改:

  1. 对每一个超出255长度的layer_name和blob_name进行截断;
  2. 截断的同时增加后缀截断编号trunc_idx,以避免截断后重名。总长维持在255。

结果

使用修改后的onnx2ncnn,保证生成的.param文件中,layer_name和blob_name长度均在255内。网络解析和ncnnoptimize可正常进行,得到的ncnn模型成功应用在项目:https://github.com/ZhangGe6/sports_counting_by_pose_estimation

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tencent-adm commented Oct 4, 2022

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nihui commented Oct 6, 2022

请在你的 fork 的 ncnn 仓库中,启用 github action,以便 code-format 正常工作

@nihui nihui merged commit 3fce00b into Tencent:master Oct 7, 2022
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nihui commented Oct 7, 2022

Thanks for your contribution !

csukuangfj added a commit to csukuangfj/ncnn that referenced this pull request Dec 1, 2022
* remove duplicated newline (Tencent#4187)

* remove duplicated newline (Tencent#4188)

* optmize softmax arm neon (Tencent#4171)

* [docs] Fix typo (Tencent#4201)

* [Prelu x86] Finish intrinsic with elempack merged (Tencent#4177)

* changed size of images for pretty formatting of page (Tencent#4193)

* [Gelu x86] Finish intrinsic with elempack merged(fast version) (Tencent#4144)

* Finish the gelu x86 intrinsics
* Finish the fast tanh x86 simd impl

* Ignore .xmake directory (Tencent#4212)

* Bump pypa/cibuildwheel from 2.9.0 to 2.10.1 (Tencent#4207)

Bumps [pypa/cibuildwheel](https://github.com/pypa/cibuildwheel) from 2.9.0 to 2.10.1.
- [Release notes](https://github.com/pypa/cibuildwheel/releases)
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* style: space alignment (Tencent#4217)

* Ignore CMakeSettings.json, the Visual Studio CMake schema file (Tencent#4228)

* RVV: use new interface for segment load/store & change word_type to size_t&add clang ci (part Tencent#4100) (Tencent#4118)

* RVV: use size_t for vl

* RVV: replace vsseg.v tuple type by using regex

-----

search:
vsseg([1-9])e(8|16|32)_v_(f|i|u)\2m(1|2|4|8)x\1\(([ -~]+), vcreate_\3\2m\4x\1\(([ -~]+)\), vl\);

substitute by:
vsseg$1e$2_v_$3$2m$4($5, $6, vl);

* RVV: replace vssseg.v tuple types by using regex

---

search:
vssseg([1-9])e(8|16|32)_v_f\2m1x\1\(([ -~]+), vcreate_f\2m1x\1\(([ -~]+)\), vl\);

substitute by:
vssseg$1e$2_v_f$2m1($3, $4, vl);

* RVV: replace vlseg.v tuple types in load/store

* RVV: replace vloxseg2ei32.v tuple types

* RVV: add a wrapper for old compilers

* RVV: add segment load/store wrapper in pakcing

* RVV: fix cmake test

* RVV: make clang happy by dropping VLAs in sgemm

* RVV: add clang cmake toolchain configure

* RVV: add clang ci, riscv64-unknown-linux-gnu

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* Bump pypa/cibuildwheel from 2.10.1 to 2.10.2 (Tencent#4220)

Bumps [pypa/cibuildwheel](https://github.com/pypa/cibuildwheel) from 2.10.1 to 2.10.2.
- [Release notes](https://github.com/pypa/cibuildwheel/releases)
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* add c906 build ci (Tencent#4232)

* Add benchmark result of T-Head TH1520 (Tencent#4240)

`cpuinfo`: 

```
isa             : rv64imafdcvsu
mmu             : sv39
cpu-freq                : 1.848Ghz
cpu-icache              : 64KB
cpu-dcache              : 64KB
cpu-l2cache             : 1MB
cpu-tlb         : 1024 4-ways
cpu-cacheline           : 64Bytes
cpu-vector              : 0.7.1
```

Compiled with `-DCMAKE_TOOLCHAIN_FILE=../toolchains/c910-v240.toolchain.cmake -DCMAKE_BUILD_TYPE=release -DNCNN_OPENMP=OFF -DNCNN_THREADS=OFF -DNCNN_RUNTIME_CPU=OFF -DNCNN_RVV=ON -DNCNN_SIMPLEOCV=ON -DNCNN_BUILD_EXAMPLES=ON` 

Seems much worse than expected 🤔

* fix param parsing issue when layer/blob name exceeds 255 (Tencent#4236)

* fix param parsing issue when layer/blob name exceeds 255

* apply code-format changes

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* Memory Pool Improvement For Variadic Sized Inputs (Tencent#4190)

* Simple miss count for better space efficiency

* Simple double ended greedy;

* Add size drop threshold setter;

* set workspace allocator cr to zero as we had some sort of recylcing capability :P

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* docs: disable fp16 when wrong results encountered caused by overflow (Tencent#4248)

* pnnx math operation (Tencent#4251)

* more stricter armv7 fp16 and armv84 bf16 compiler check, fix Tencent#4147 fix Tencent#4222 (Tencent#4247)

* modified the param axes of expanddims in modelwriter (Tencent#4259)

* Add TH1520 (4*C910V) toolchain support.  (Tencent#4267)

* implement lstm proj_size (Tencent#4263)

* Optimize x86 DeformableConv2D (Tencent#4128)

* fix compile warning with gcc 9.1.0 including simplestl.h file (Tencent#4274)

* fix compile warning with gcc 9.1.0 including simplestl.h file

* apply code-format changes

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* add benchmark for rk3588 on rock5b (Tencent#4275)

* linux-x64-cpu-gcc on tencent ci

* implement layer feature disabled bit (Tencent#4278)

* add elu vulkan operator (Tencent#4280)

* fix tencent ci (Tencent#4277)

* implement GLU and pnnx conversion (Tencent#4283)

* Bump pypa/cibuildwheel from 2.10.2 to 2.11.1 (Tencent#4271)

Bumps [pypa/cibuildwheel](https://github.com/pypa/cibuildwheel) from 2.10.2 to 2.11.1.
- [Release notes](https://github.com/pypa/cibuildwheel/releases)
- [Changelog](https://github.com/pypa/cibuildwheel/blob/main/docs/changelog.md)
- [Commits](pypa/cibuildwheel@v2.10.2...v2.11.1)

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  update-type: version-update:semver-minor
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* fix pnnx softmax/normalize/slice negative axis conversion to ncnn (Tencent#4284)

* pnnx glu batchindex aware conversion (Tencent#4285)

* 1. Fix typo in readme (Tencent#4287)

* x86 sse2/avx2 optimization for convolution sgemm/winograd int8 family (Tencent#4286)

* pnnx skip dynamic size evaluation (Tencent#4291)

* Fix linux build error(Tencent#4265) (Tencent#4294)

Co-authored-by: wangyu <786794414@qq.com>

* general cpu feature detection on macos/ios, enable bf16 and i8mm on a15 a16 and m2 (Tencent#4300)

* x86 unified fc fp32/fp16s (Tencent#4303)

* more fma
* more transpose utility function

* Bump pypa/cibuildwheel from 2.11.1 to 2.11.2 (Tencent#4308)

Bumps [pypa/cibuildwheel](https://github.com/pypa/cibuildwheel) from 2.11.1 to 2.11.2.
- [Release notes](https://github.com/pypa/cibuildwheel/releases)
- [Changelog](https://github.com/pypa/cibuildwheel/blob/main/docs/changelog.md)
- [Commits](pypa/cibuildwheel@v2.11.1...v2.11.2)

---
updated-dependencies:
- dependency-name: pypa/cibuildwheel
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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* pnnx pytorch 1.13 (Tencent#4314)

* fix Tencent#4315 (Tencent#4316)

* get_physical_cpu_count api family (Tencent#4302)

* get_physical_cpu_count api family

* set default to physical big cpu

* always treat smt core as big core

* is_smt_cpu

* get max freq mhz on windows

* windows thread affinity

* groupnorm 1d/2d/4d (Tencent#4312)

* fix slice end index, fix fp16 model weight alignment (Tencent#4317)

* tencent ci test-coverage pnnx (Tencent#4305)

* RVV: BatchNorm with fp16s(a) support (Tencent#4075)

* RVV: InstanceNorm with fp16s(a) support (Tencent#4078)

* fix ci pnnx build

* fold new_full and full_like (Tencent#4323)

* pnnx convert nn.Softmax2d (Tencent#4324)

* pnnx convert fold unfold (Tencent#4325)

* support yolov5 6.2 (Tencent#4328)

* implement ncnn fold and unfold (Tencent#4326)

* pnnx load gpu torchscript and reset device (Tencent#4330)

* fix:pnnx-softmax (Tencent#4333)

* pnnx save onnx zero (Tencent#4077)

* save foldable constants in file for reducing memory usage (Tencent#4337)

* match inplace slice copy pattern, rewrite copy uses (Tencent#4338)

* add vector optimization for loongarch64 (Tencent#4242)

* ci loongarch64 lsx (Tencent#4344)

* gridsample op support (Tencent#4288)



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* squeeze and expanddims 4d (Tencent#4346)

* implement MultiheadAttention kdim vdim (Tencent#4347)

* pnnx convert torch bitwise left_shift right_shift (Tencent#4349)

* pnnx fp16 option for ncnn and onnx weight type (Tencent#4350)

* pnnx fuse more function to module (Tencent#4351)

* pnnx fuse more function to module

* rename some pass name

* fuse adjacent reshape, fuse pad conv2d

* fuse pad conv1d

* split tests (Tencent#4354)

* Support mat.numpy() in Python (Tencent#4356)

* Fix typo in stb_image.h (Tencent#4358)

exitting -> exiting

* Fix windows-arm64 build for non-neon case (Tencent#4227)

* update release ci (Tencent#4359)

* update release ci

* find modern glslang

* parallel jobs on windows

* Fix c api allocator (Tencent#4360)

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* fix errors in allocator parameters in c_api.

* test c api allocator

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* update glslang (Tencent#4361)

* disable out-of-line atomics since ndk23+ for resolving linking issue with old ndk (Tencent#4362)

* I added one more project to the list of examples. (Tencent#4205)

* Dedicated to coloring black and white photographs.

* add example project link (Tencent#4365)

* fix(pybind11): build error (Tencent#4368)

* fix openmp affinity abort when cpu goes offline (Tencent#4370)

* Update release-python.yml

* small fixes

* unpack list input

* Remove LSTM2

* fix LSTM

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