移植caffe到hi3519

如果对深度学习感兴趣可以加我微信，互相交流（本人是做嵌入式的，但对深度学习感兴趣）：15737978512

2017年6月29日更：

关于ive：
海思已经移植好了caffe库，而且提供了将pc训练好的模型转换为可以导入ive中运行的模型方法,具体参考如下文档：
sdk中ive开发包路径:Hi3519 V100R001C01SPC040\01.software\pc\IVE_CLIB\HiIVE_PC_V2.1.0.5.rar\HiIVE_PC_V2.1.0.5\

2017年6月27日更：
关于移植出现问题有网友已解决，
原因：
openblas库移植的有问题，由于3519浮点运算不支持函数的参数直接传递到FPU的寄存器（s0、d0）中（hard模式），而移植的openblas库使用的是hard模式。
解决方法：
3519浮点运算支持softfp模式，对应openblas分支如下，编译即可：
https://github.com/xianyi/OpenBLAS/tree/arm_soft_fp_abi

1.移植环境

Ubuntu16.04 + arm-hisiv500-linux-
caffe下载地址：https://github.com/BVLC/caffe/releases

2.移植步骤：

修改Makefile

1）LIBRARIES += glog gflags protobuf boost_system boost_filesystem m hdf5_hl hdf5
2）BLAS ?= open
3）COMMON_FLAGS += -mcpu=cortex-a17.cortex-a7 -mfloat-abi=softfp -mfpu=neon-vfpv4 -mno-unaligned-access -fno-aggressive-loop-optimizations

修改Makefile.config

     1）CPU_ONLY := 12）OPENCV_VERSION := 3 #3）CUSTOM_CXX := arm-hisiv500-linux-g++4）BLAS := open5）INCLUDE_DIRS := $(PYTHON_INCLUDE) /opt/hisi-linux/x86-arm/arm-hisiv500-linux/target/usr/local/include /opt/hisi-linux/x86-arm/arm-hisiv500-linux/target/usr/include /usr/local/include96 LIBRARY_DIRS := $(PYTHON_LIB) /opt/hisi-linux/x86-arm/arm-hisiv500-linux/target/usr/local/lib /opt/hisi-linux/x86-arm/arm-hisiv500-linux/target/usr/lib6）#PYTHON_LIB := /usr/lib7）USE_PKG_CONFIG := 1

编译：make all
安装：make test

3.移植问题汇总

问题一描述：

/opt/hisi-linux/x86-arm/arm-hisiv500-linux/target/usr/local/lib/libboost_filesystem.so: warning: the use of OBSOLESCENT `utime' is discouraged, use `utimes'
/opt/hisi-linux/x86-arm/arm-hisiv500-linux/bin/../lib/gcc/arm-hisiv500-linux-uclibcgnueabi/4.9.4/../../../../arm-hisiv500-linux-uclibcgnueabi/bin/ld: warning: ../../lib/libopencv_video.so, needed by /opt/hisi-linux/x86-arm/arm-hisiv500-linux/target/usr/local/lib/libopencv_shape.so, not found (try using -rpath or -rpath-link)
/opt/hisi-linux/x86-arm/arm-hisiv500-linux/bin/../lib/gcc/arm-hisiv500-linux-uclibcgnueabi/4.9.4/../../../../arm-hisiv500-linux-uclibcgnueabi/bin/ld: warning: ../../lib/libopencv_imgproc.so, needed by /opt/hisi-linux/x86-arm/arm-hisiv500-linux/target/usr/local/lib/libopencv_shape.so, not found (try using -rpath or -rpath-link)
/opt/hisi-linux/x86-arm/arm-hisiv500-linux/bin/../lib/gcc/arm-hisiv500-linux-uclibcgnueabi/4.9.4/../../../../arm-hisiv500-linux-uclibcgnueabi/bin/ld: warning: ../../lib/libopencv_core.so, needed by /opt/hisi-linux/x86-arm/arm-hisiv500-linux/target/usr/local/lib/libopencv_shape.so, not found (try using -rpath or -rpath-link)
/opt/hisi-linux/x86-arm/arm-hisiv500-linux/bin/../lib/gcc/arm-hisiv500-linux-uclibcgnueabi/4.9.4/../../../../arm-hisiv500-linux-uclibcgnueabi/bin/ld: warning: ../../lib/libopencv_objdetect.so, needed by /opt/hisi-linux/x86-arm/arm-hisiv500-linux/target/usr/local/lib/libopencv_stitching.so, not found (try using -rpath or -rpath-link)
/opt/hisi-linux/x86-arm/arm-hisiv500-linux/bin/../lib/gcc/arm-hisiv500-linux-uclibcgnueabi/4.9.4/../../../../arm-hisiv500-linux-uclibcgnueabi/bin/ld: warning: ../../lib/libopencv_calib3d.so, needed by /opt/hisi-linux/x86-arm/arm-hisiv500-linux/target/usr/local/lib/libopencv_stitching.so, not found (try using -rpath or -rpath-link)
/opt/hisi-linux/x86-arm/arm-hisiv500-linux/bin/../lib/gcc/arm-hisiv500-linux-uclibcgnueabi/4.9.4/../../../../arm-hisiv500-linux-uclibcgnueabi/bin/ld: warning: ../../lib/libopencv_features2d.so, needed by /opt/hisi-linux/x86-arm/arm-hisiv500-linux/target/usr/local/lib/libopencv_stitching.so, not found (try using -rpath or -rpath-link)
/opt/hisi-linux/x86-arm/arm-hisiv500-linux/bin/../lib/gcc/arm-hisiv500-linux-uclibcgnueabi/4.9.4/../../../../arm-hisiv500-linux-uclibcgnueabi/bin/ld: warning: ../../lib/libopencv_flann.so, needed by /opt/hisi-linux/x86-arm/arm-hisiv500-linux/target/usr/local/lib/libopencv_stitching.so, not found (try using -rpath or -rpath-link)
/opt/hisi-linux/x86-arm/arm-hisiv500-linux/bin/../lib/gcc/arm-hisiv500-linux-uclibcgnueabi/4.9.4/../../../../arm-hisiv500-linux-uclibcgnueabi/bin/ld: warning: ../../lib/libopencv_ml.so, needed by /opt/hisi-linux/x86-arm/arm-hisiv500-linux/target/usr/local/lib/libopencv_stitching.so, not found (try using -rpath or -rpath-link)
/opt/hisi-linux/x86-arm/arm-hisiv500-linux/bin/../lib/gcc/arm-hisiv500-linux-uclibcgnueabi/4.9.4/../../../../arm-hisiv500-linux-uclibcgnueabi/bin/ld: warning: ../../lib/libopencv_highgui.so, needed by /opt/hisi-linux/x86-arm/arm-hisiv500-linux/target/usr/local/lib/libopencv_stitching.so, not found (try using -rpath or -rpath-link)
/opt/hisi-linux/x86-arm/arm-hisiv500-linux/bin/../lib/gcc/arm-hisiv500-linux-uclibcgnueabi/4.9.4/../../../../arm-hisiv500-linux-uclibcgnueabi/bin/ld: warning: ../../lib/libopencv_videoio.so, needed by /opt/hisi-linux/x86-arm/arm-hisiv500-linux/target/usr/local/lib/libopencv_stitching.so, not found (try using -rpath or -rpath-link)
/opt/hisi-linux/x86-arm/arm-hisiv500-linux/bin/../lib/gcc/arm-hisiv500-linux-uclibcgnueabi/4.9.4/../../../../arm-hisiv500-linux-uclibcgnueabi/bin/ld: warning: ../../lib/libopencv_imgcodecs.so, needed by /opt/hisi-linux/x86-arm/arm-hisiv500-linux/target/usr/local/lib/libopencv_stitching.so, not found (try using -rpath or -rpath-link)
/opt/hisi-linux/x86-arm/arm-hisiv500-linux/bin/../lib/gcc/arm-hisiv500-linux-uclibcgnueabi/4.9.4/../../../../arm-hisiv500-linux-uclibcgnueabi/bin/ld: warning: ../../lib/libopencv_photo.so, needed by /opt/hisi-linux/x86-arm/arm-hisiv500-linux/target/usr/local/lib/libopencv_videostab.so, not found (try using -rpath or -rpath-link)
CXX tools/convert_imageset.cpp
CXX/LD -o .build_release/tools/convert_imageset.bin

问题原因：链接的问题

shunzhi@ubuntu:/opt/hisi-linux/x86-arm/arm-hisiv500-linux/target/usr/local/lib$ arm-hisiv500-linux-readelf -d libopencv_shape.so

Dynamic section at offset 0x2f7c0 contains 30 entries:Tag        Type                         Name/Value0x00000001 (NEEDED)                     Shared library: [../../lib/libopencv_video.so]0x00000001 (NEEDED)                     Shared library: [../../lib/libopencv_imgproc.so]0x00000001 (NEEDED)                     Shared library: [../../lib/libopencv_core.so]0x00000001 (NEEDED)                     Shared library: [libstdc++.so.6]0x00000001 (NEEDED)                     Shared library: [libm.so.0]0x00000001 (NEEDED)                     Shared library: [libgcc_s.so.1]0x00000001 (NEEDED)                     Shared library: [libc.so.0]0x0000000c (INIT)                       0x37a80x0000000d (FINI)                       0x2b3880x00000019 (INIT_ARRAY)                 0x3f0000x0000001b (INIT_ARRAYSZ)               32 (bytes)0x0000001a (FINI_ARRAY)                 0x3f0200x0000001c (FINI_ARRAYSZ)               4 (bytes)0x00000004 (HASH)                       0xd40x00000005 (STRTAB)                     0x10bc0x00000006 (SYMTAB)                     0x5ac0x0000000a (STRSZ)                      5274 (bytes)0x0000000b (SYMENT)                     16 (bytes)0x00000003 (PLTGOT)                     0x3f8d00x00000002 (PLTRELSZ)                   872 (bytes)0x00000014 (PLTREL)                     REL0x00000017 (JMPREL)                     0x34400x00000011 (REL)                        0x26d80x00000012 (RELSZ)                      3432 (bytes)0x00000013 (RELENT)                     8 (bytes)0x6ffffffe (VERNEED)                    0x26b80x6fffffff (VERNEEDNUM)                 10x6ffffff0 (VERSYM)                     0x25560x6ffffffa (RELCOUNT)                   2340x00000000 (NULL)                       0x0

解决方案：
- 在当前opencv库的位置新建一个相对路径的lib库
  mkdir ../../lib
  cp libopencv* ../../lib
问题二描述：

CXX/LD -o .build_release/test/test_all.testbin src/caffe/test/test_caffe_main.cpp
/opt/hisi-linux/x86-arm/arm-hisiv500-linux/target/usr/local/lib/libboost_filesystem.so: warning: the use of OBSOLESCENT `utime' is discouraged, use `utimes'
/opt/hisi-linux/x86-arm/arm-hisiv500-linux/bin/../lib/gcc/arm-hisiv500-linux-uclibcgnueabi/4.9.4/../../../../arm-hisiv500-linux-uclibcgnueabi/bin/ld: /opt/hisi-linux/x86-arm/arm-hisiv500-linux/bin/../target/lib/libpthread.so.0: undefined reference to symbol 'dlclose'
/opt/hisi-linux/x86-arm/arm-hisiv500-linux/bin/../target/lib/libdl.so.0: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
Makefile:606: recipe for target '.build_release/test/test_all.testbin' failed
make: *** [.build_release/test/test_all.testbin] Error 1

原因：缺少ptread，dl，rt库
解决方案：Makefile中添加这三个库。

183 LIBRARIES += glog gflags protobuf boost_system boost_filesystem m  hdf5_hl hdf5 pthread dl rt

问题三描述：训练mnist模型时出现的错误。（未解决）

I0406 10:54:27.313168   722 net.cpp:242] This network produces output accuracy
I0406 10:54:27.313230   722 net.cpp:242] This network produces output loss
I0406 10:54:27.313371   722 net.cpp:255] Network initialization done.
I0406 10:54:27.314100   722 solver.cpp:56] Solver scaffolding done.
I0406 10:54:27.314471   722 caffe.cpp:248] Starting Optimization
I0406 10:54:27.314553   722 solver.cpp:273] Solving LeNet
I0406 10:54:27.314610   722 solver.cpp:274] Learning Rate Policy: inv
I0406 10:54:27.321142   722 solver.cpp:331] Iteration 0, Testing net (#0)
*** Aborted at 1491504867 (unix time) try "date -d @1491504867" if you are using GNU date ***
PC: @ 0xb6ea7c54 (unknown)
Segmentation fault

目前caffe和其依赖库已经移植完成，但是在训练数据时出现了错误（运行训练好的模型执行时也会出现这种问题），不知道是否由于依赖库的移植有问题，如果有遇到这种问题欢迎交流（shunzhi163@163.com）。

注意：
- 也可以在pc训练，在板子上跑模型；但是跑模型时同样会有上述错误。

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