JetsonTX2如何安装tensorflow
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在Jetson TX2上安装tensorflow，需要在源码编译，至少我看到现在的教程都是在源码上编译，编译的时间会很久．
源码编译安装tensorflow可以参考我另外一个教程，这里主要说一些注意要项．
bazel和tensorflow
bazel 和tensorflow的版本注意不要太高，我这里就是bazel和tensorflow的版本选的太高，导致安装完出现问题，虽然不知道是不是依赖没有打完整的缘故，但是在这里还是建议选择低一些的版本．
我这边选择的是bazel-5.4，tensorflow1.3
内存空间不足
网上说编译tensorflow可能会出现内存空间不够用的情况，所以需要做一个交换文件，但是实际上我并没有碰到，但是还是记录一下
＃Create an 8GB swapfile fallocate -l 8G swapfile ＃Change permission of the swapfile chmod 600 swapfile ＃Create swap area mkswap swapfile ＃Activate the swap area sudo swapon swapfile # deactive the swap are sudo swapoff swapfile ＃Confirm swap area being used swapon -s
修改tensorflow/stream_executor/cuda/cuda_gpu_executor.cc
在tensorflow/stream_executor/cuda/cuda_gpu_executor.cc中找到static int TryToReadNumaNode(conststring &pci_bus_id,intdevice_ordinal)这个函数，在最开始就添加一下内容
LOG(INFO) << "ARM has no NUMA node, hardcoding to return zero"; return 0;
计算能力
在执行./configure的时候，如果要用到cuda会让你填Cuda compute capabilities，记得Jetson TX2的Cuda compute capabilities是6.2
Eigen错误
external/eigen_archive/Eigen/src/Jacobi/Jacobi.h:359:55: error: ‘struct Eigen::internal::conj_helper<__vector(4) __builtin_neon_sf, Eigen::internal::Packet2cf, false, false>’ has no member named ‘pmul’ external/eigen_archive/Eigen/src/Jacobi/Jacobi.h:360:55: error: ‘struct Eigen::internal::conj_helper<__vector(4) __builtin_neon_sf, Eigen::internal::Packet2cf, false, false>’ has no member named ‘pmul’ pstore(py, psub(pcj.pmul(pc,yi),pm.pmul(ps,xi))); ^ external/eigen_archive/Eigen/src/Jacobi/Jacobi.h:360:55: error: ‘struct Eigen::internal::conj_helper<__vector(4) __builtin_neon_sf, Eigen::internal::Packet2cf, false, false>’ has no member named ‘pmul’ external/eigen_archive/Eigen/src/Jacobi/Jacobi.h:374:56: error: ‘struct Eigen::internal::conj_helper<__vector(4) __builtin_neon_sf, Eigen::internal::Packet2cf, false, false>’ has no member named ‘pmul’ pstoreu(px, padd(pm.pmul(pc,xi),pcj.pmul(ps,yi))); ^ external/eigen_archive/Eigen/src/Jacobi/Jacobi.h:374:56: error: ‘struct Eigen::internal::conj_helper<__vector(4) __builtin_neon_sf, Eigen::internal::Packet2cf, false, false>’ has no member named ‘pmul’ external/eigen_archive/Eigen/src/Jacobi/Jacobi.h:375:69: error: ‘struct Eigen::internal::conj_helper<__vector(4) __builtin_neon_sf, Eigen::internal::Packet2cf, false, false>’ has no member named ‘pmul’ pstoreu(px+PacketSize, padd(pm.pmul(pc,xi1),pcj.pmul(ps,yi1))); ^ external/eigen_archive/Eigen/src/Jacobi/Jacobi.h:375:69: error: ‘struct Eigen::internal::conj_helper<__vector(4) __builtin_neon_sf, Eigen::internal::Packet2cf, false, false>’ has no member named ‘pmul’ external/eigen_archive/Eigen/src/Jacobi/Jacobi.h:376:56: error: ‘struct Eigen::internal::conj_helper<__vector(4) __builtin_neon_sf, Eigen::internal::Packet2cf, false, false>’ has no member named ‘pmul’ pstore (py, psub(pcj.pmul(pc,yi),pm.pmul(ps,xi))); ^ external/eigen_archive/Eigen/src/Jacobi/Jacobi.h:376:56: error: ‘struct Eigen::internal::conj_helper<__vector(4) __builtin_neon_sf, Eigen::internal::Packet2cf, false, false>’ has no member named ‘pmul’ external/eigen_archive/Eigen/src/Jacobi/Jacobi.h:377:69: error: ‘struct Eigen::internal::conj_helper<__vector(4) __builtin_neon_sf, Eigen::internal::Packet2cf, false, false>’ has no member named ‘pmul’ pstore (py+PacketSize, psub(pcj.pmul(pc,yi1),pm.pmul(ps,xi1))); ^ external/eigen_archive/Eigen/src/Jacobi/Jacobi.h:377:69: error: ‘struct Eigen::internal::conj_helper<__vector(4) __builtin_neon_sf, Eigen::internal::Packet2cf, false, false>’ has no member named ‘pmul’ external/eigen_archive/Eigen/src/Jacobi/Jacobi.h:385:66: error: ‘struct Eigen::internal::conj_helper<__vector(4) __builtin_neon_sf, Eigen::internal::Packet2cf, false, false>’ has no member named ‘pmul’ pstoreu(x+peelingEnd, padd(pm.pmul(pc,xi),pcj.pmul(ps,yi))); ^ external/eigen_archive/Eigen/src/Jacobi/Jacobi.h:385:66: error: ‘struct Eigen::internal::conj_helper<__vector(4) __builtin_neon_sf, Eigen::internal::Packet2cf, false, false>’ has no member named ‘pmul’ external/eigen_archive/Eigen/src/Jacobi/Jacobi.h:386:66: error: ‘struct Eigen::internal::conj_helper<__vector(4) __builtin_neon_sf, Eigen::internal::Packet2cf, false, false>’ has no member named ‘pmul’ pstore (y+peelingEnd, psub(pcj.pmul(pc,yi),pm.pmul(ps,xi))); ^ external/eigen_archive/Eigen/src/Jacobi/Jacobi.h:386:66: error: ‘struct Eigen::internal::conj_helper<__vector(4) __builtin_neon_sf, Eigen::internal::Packet2cf, false, false>’ has no member named ‘pmul’ external/eigen_archive/Eigen/src/Jacobi/Jacobi.h:415:53: error: ‘struct Eigen::internal::conj_helper<__vector(4) __builtin_neon_sf, Eigen::internal::Packet2cf, false, false>’ has no member named ‘pmul’ pstore(px, padd(pm.pmul(pc,xi),pcj.pmul(ps,yi))); ^ external/eigen_archive/Eigen/src/Jacobi/Jacobi.h:415:53: error: ‘struct Eigen::internal::conj_helper<__vector(4) __builtin_neon_sf, Eigen::internal::Packet2cf, false, false>’ has no member named ‘pmul’ external/eigen_archive/Eigen/src/Jacobi/Jacobi.h:416:53: error: ‘struct Eigen::internal::conj_helper<__vector(4) __builtin_neon_sf, Eigen::internal::Packet2cf, false, false>’ has no member named ‘pmul’ pstore(py, psub(pcj.pmul(pc,yi),pm.pmul(ps,xi)));
这些错误是eigen的arm部分有问题，解决方法： https://github.com/tensorflow/tensorflow/issues/9697
https://github.com/samjabrahams/tensorflow-on-raspberry-pi/issues/101
https://bitbucket.org/eigen/eigen/commits/d781c1de9834/
可以手工修改下，或者去下一个上述对arm修改过的3.3版本的Eigen去替换掉 ~/.cache/bazel/_bazel_ubuntu/5a48b4b8cc5de8b183f660553d84cc0b/external/eigen_archive/Eigen（那一长串的目录具体看你自己的）下的Eigen文件夹（下载地址: ）
手工修改方法是将tensorflow/workspace.bzl文件中的
native.new_http_archive(
name = "eigen_archive",
urls = [
"http://mirror.bazel.build/bitbucket.org/eigen/eigen/get/f3a22f35b044.tar.gz",
"https://bitbucket.org/eigen/eigen/get/f3a22f35b044.tar.gz",
],
sha256 = "ca7beac153d4059c02c8fc59816c82d54ea47fe58365e8aded4082ded0b820c4",
strip_prefix = "eigen-eigen-f3a22f35b044",
build_file = str(Label("//third_party:eigen.BUILD")),
)替换成
native.new_http_archive(
name = "eigen_archive",
urls = [
"http://mirror.bazel.build/bitbucket.org/eigen/eigen/get/d781c1de9834.tar.gz",
"https://bitbucket.org/eigen/eigen/get/d781c1de9834.tar.gz",
],
sha256 = "a34b208da6ec18fa8da963369e166e4a368612c14d956dd2f9d7072904675d9b",
strip_prefix = "eigen-eigen-d781c1de9834",
build_file = str(Label("//third_party:eigen.BUILD")),
)GL头文件问题
Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/opengl.cpp.o In file included from /home/ubuntu/build/opencv/modules/core/src/opengl.cpp:50:0: /usr/local/cuda/include/cuda_gl_interop.h:64:2: error: #error Please include the appropriate gl headers before including cuda_gl_interop.h #error Please include the appropriate gl headers before including cuda_gl_interop.h ^ make[2]: *** [modules/core/CMakeFiles/opencv_core.dir/src/opengl.cpp.o] Error 1 make[1]: *** [modules/core/CMakeFiles/opencv_core.dir/all] Error 2 make: *** [all] Error 2
注释/usr/local/cuda/include/cuda_gl_interop.h
#ifndef GL_VERSION #error Please include the appropriate gl headers before including cuda_gl_interop.h #endif #else
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