Source code of the following Python script contains:
import tensorrt as trt
...and its execution fails:
(tensorflow-demo) nvidia@nvidia-nano:~/dev/nvidia/uff_ssd$ python detect_objects.py images/image1.jpg
Traceback (most recent call last):
File "detect_objects.py", line 58, in <module>
import tensorrt as trt
ModuleNotFoundError: No module named 'tensorrt'
TensorRT Pyton module was not installed. I want to share here my experience with the process of setting up TensorRT on Jetson Nano as described here:
A Guide to using TensorRT on the Nvidia Jetson Nano - Donkey Car
$ sudo find / -name nvcc
[sudo] password for nvidia:
find: ‘/run/user/1000/gvfs’: Permission denied
find: ‘/run/user/120/gvfs’: Permission denied
/usr/local/cuda-10.0/bin/nvcc
/home/nvidia/.cache/bazel/_bazel_nvidia/0c75cc683915a1db7f4f8a4da90fb148/execroot/org_tensorflow/bazel-out/host/bin/external/local_config_cuda/cuda/cuda/bin/nvcc
/home/nvidia/.cache/bazel/_bazel_nvidia/0c75cc683915a1db7f4f8a4da90fb148/execroot/org_tensorflow/bazel-out/aarch64-py2-opt/bin/external/local_config_cuda/cuda/cuda/bin/nvcc
/home/nvidia/.cache/bazel/_bazel_nvidia/0c75cc683915a1db7f4f8a4da90fb148/execroot/org_tensorflow/bazel-out/aarch64-opt/bin/external/local_config_cuda/cuda/cuda/bin/nvcc
nvidia@nvidia-nano:/usr/local/cuda$ ls
nvidia@nvidia-nano:/usr/local/cuda$ cd bin
nvidia@nvidia-nano:/usr/local/cuda/bin$ ls
nvidia@nvidia-nano:/usr/local/cuda/bin$ ls -la
nvidia@nvidia-nano:/usr/local/cuda/bin$ ./nvcc --version
nvidia@nvidia-nano:/usr/src/tensorrt/samples/python$ nvcc --version
Installing pycuda:
nvidia@nvidia-nano:~$ ls -la /usr/lib/python3.6/dist-packages/tensorrt
TensorRT is still not visible to Python in virtual environment though:
We need to add the path to TensorRT package to PYTHONPATH in virtual environment:
TensorRT is now visible to Python:
(tensorflow-demo) nvidia@nvidia-nano:/usr/src/tensorrt/samples/python$ python -c "import tensorrt as trt"
import tensorrt as trt
...and its execution fails:
(tensorflow-demo) nvidia@nvidia-nano:~/dev/nvidia/uff_ssd$ python detect_objects.py images/image1.jpg
Traceback (most recent call last):
File "detect_objects.py", line 58, in <module>
import tensorrt as trt
ModuleNotFoundError: No module named 'tensorrt'
TensorRT Pyton module was not installed. I want to share here my experience with the process of setting up TensorRT on Jetson Nano as described here:
A Guide to using TensorRT on the Nvidia Jetson Nano - Donkey Car
$ sudo find / -name nvcc
[sudo] password for nvidia:
find: ‘/run/user/1000/gvfs’: Permission denied
find: ‘/run/user/120/gvfs’: Permission denied
/usr/local/cuda-10.0/bin/nvcc
/home/nvidia/.cache/bazel/_bazel_nvidia/0c75cc683915a1db7f4f8a4da90fb148/execroot/org_tensorflow/bazel-out/host/bin/external/local_config_cuda/cuda/cuda/bin/nvcc
/home/nvidia/.cache/bazel/_bazel_nvidia/0c75cc683915a1db7f4f8a4da90fb148/execroot/org_tensorflow/bazel-out/aarch64-py2-opt/bin/external/local_config_cuda/cuda/cuda/bin/nvcc
/home/nvidia/.cache/bazel/_bazel_nvidia/0c75cc683915a1db7f4f8a4da90fb148/execroot/org_tensorflow/bazel-out/aarch64-opt/bin/external/local_config_cuda/cuda/cuda/bin/nvcc
nvidia@nvidia-nano:/usr/src/tensorrt/samples/python$ /usr/local/cuda-10.0/bin/nvcc --version
nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2019 NVIDIA Corporation
Built on Mon_Mar_11_22:13:24_CDT_2019
Cuda compilation tools, release 10.0, V10.0.326
nvidia@nvidia-nano:/usr/src/tensorrt/samples/python$ cd /usr/local/cuda
nvidia@nvidia-nano:/usr/local/cuda$ ls
bin extras lib64 NsightCompute-1.0 nvvm samples targets version.txt
doc include LICENSE nvml README share tools
nvidia@nvidia-nano:/usr/local/cuda$ cd bin
nvidia@nvidia-nano:/usr/local/cuda/bin$ ls
bin2c cuda-gdbserver fatbinary nvlink
crt cuda-install-samples-10.0.sh nvcc nvprof
cudafe++ cuda-memcheck nvcc.profile nvprune
cuda-gdb cuobjdump nvdisasm ptxas
nvidia@nvidia-nano:/usr/local/cuda/bin$ ls -la
total 57272
drwxr-xr-x 3 root root 4096 Aug 16 19:42 .
drwxr-xr-x 12 root root 4096 Aug 16 19:43 ..
-rwxr-xr-x 1 root root 60600 Mar 12 2019 bin2c
drwxr-xr-x 2 root root 4096 Aug 16 19:36 crt
-rwxr-xr-x 1 root root 3960000 Mar 12 2019 cudafe++
-rwxr-xr-x 1 root root 6143896 Mar 12 2019 cuda-gdb
-rwxr-xr-x 1 root root 472429 Mar 12 2019 cuda-gdbserver
-rwxr-xr-x 1 root root 784 Mar 12 2019 cuda-install-samples-10.0.sh
-rwxr-xr-x 1 root root 259368 Mar 12 2019 cuda-memcheck
-rwxr-xr-x 1 root root 270128 Mar 12 2019 cuobjdump
-rwxr-xr-x 1 root root 119280 Mar 12 2019 fatbinary
-rwxr-xr-x 1 root root 180816 Mar 12 2019 nvcc
-rw-r--r-- 1 root root 393 Mar 12 2019 nvcc.profile
-rwxr-xr-x 1 root root 22607128 Mar 12 2019 nvdisasm
-rwxr-xr-x 1 root root 8979096 Mar 12 2019 nvlink
-rwxr-xr-x 1 root root 6597104 Mar 12 2019 nvprof
-rwxr-xr-x 1 root root 77280 Mar 12 2019 nvprune
-rwxr-xr-x 1 root root 8874104 Mar 12 2019 ptxas
nvidia@nvidia-nano:/usr/local/cuda/bin$ ./nvcc --version
nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2019 NVIDIA Corporation
Built on Mon_Mar_11_22:13:24_CDT_2019
Cuda compilation tools, release 10.0, V10.0.326
nvidia@nvidia-nano:/usr/src/tensorrt/samples/python$ sudo gedit ~/.bashrc
# Add this to your .bashrc file
export CUDA_HOME=/usr/local/cuda
# Adds the CUDA compiler to the PATH
export PATH=$CUDA_HOME/bin:$PATH
# Adds the libraries
export LD_LIBRARY_PATH=$CUDA_HOME/lib64:$LD_LIBRARY_PATH
nvidia@nvidia-nano:/usr/src/tensorrt/samples/python$ source ~/.bashrc
nvidia@nvidia-nano:/usr/src/tensorrt/samples/python$ nvcc --version
nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2019 NVIDIA Corporation
Built on Mon_Mar_11_22:13:24_CDT_2019
Cuda compilation tools, release 10.0, V10.0.326
Just after I issued pip install pycuda:
nvidia@nvidia-nano:~$ sudo find / -name *pycuda*
[sudo] password for nvidia:
find: ‘/run/user/1000/gvfs’: Permission denied
find: ‘/run/user/120/gvfs’: Permission denied
/tmp/pip-install-sf96wq0d/pycuda
/tmp/pip-install-sf96wq0d/pycuda/pycuda.egg-info
/tmp/pip-install-sf96wq0d/pycuda/build/lib.linux-aarch64-3.6/pycuda
/tmp/pip-install-sf96wq0d/pycuda/build/lib.linux-aarch64-3.6/pycuda/cuda/pycuda-helpers.hpp
/tmp/pip-install-sf96wq0d/pycuda/build/lib.linux-aarch64-3.6/pycuda/cuda/pycuda-complex.hpp
/tmp/pip-install-sf96wq0d/pycuda/build/lib.linux-aarch64-3.6/pycuda/cuda/pycuda-complex-impl.hpp
/tmp/pip-install-sf96wq0d/pycuda/pycuda
/tmp/pip-install-sf96wq0d/pycuda/pycuda/cuda/pycuda-helpers.hpp
/tmp/pip-install-sf96wq0d/pycuda/pycuda/cuda/pycuda-complex.hpp
/tmp/pip-install-sf96wq0d/pycuda/pycuda/cuda/pycuda-complex-impl.hpp
/tmp/pip-install-sf96wq0d/pycuda/pip-egg-info/pycuda.egg-info
/tmp/pip-install-sf96wq0d/pycuda/bpl-subset/bpl_subset/pycudaboost
Installing pycuda:
(tensorflow-demo) nvidia@nvidia-nano:/usr/src/tensorrt/samples/python$ pip install pycuda
Collecting pycuda
Using cached https://files.pythonhosted.org/packages/5e/3f/5658c38579b41866ba21ee1b5020b8225cec86fe717e4b1c5c972de0a33c/pycuda-2019.1.2.tar.gz
Requirement already satisfied: pytools>=2011.2 in /home/nvidia/python-envs/tensorflow-demo/lib/python3.6/site-packages (from pycuda) (2019.1.1)
Requirement already satisfied: decorator>=3.2.0 in /home/nvidia/python-envs/tensorflow-demo/lib/python3.6/site-packages (from pycuda) (4.4.1)
Requirement already satisfied: appdirs>=1.4.0 in /home/nvidia/python-envs/tensorflow-demo/lib/python3.6/site-packages (from pycuda) (1.4.3)
Requirement already satisfied: mako in /home/nvidia/python-envs/tensorflow-demo/lib/python3.6/site-packages (from pycuda) (1.1.0)
Requirement already satisfied: six>=1.8.0 in /home/nvidia/python-envs/tensorflow-demo/lib/python3.6/site-packages (from pytools>=2011.2->pycuda) (1.13.0)
Requirement already satisfied: numpy>=1.6.0 in /home/nvidia/python-envs/tensorflow-demo/lib/python3.6/site-packages (from pytools>=2011.2->pycuda) (1.17.4)
Requirement already satisfied: MarkupSafe>=0.9.2 in /home/nvidia/python-envs/tensorflow-demo/lib/python3.6/site-packages (from mako->pycuda) (1.1.1)
Building wheels for collected packages: pycuda
Building wheel for pycuda (setup.py) ... done
Created wheel for pycuda: filename=pycuda-2019.1.2-cp36-cp36m-linux_aarch64.whl size=4497309 sha256=e7bbecd3bfa86a84f2ed505966a51123d97073cb4fd981ed434959f20a7507f3
Stored in directory: /home/nvidia/.cache/pip/wheels/a6/60/f0/b1c430c73d281ac3e46070480db50f7907364eb6f6d3188396
Successfully built pycuda
Installing collected packages: pycuda
Successfully installed pycuda-2019.1.2
Let's see where is now pycuda:
Let's see where is now pycuda:
nvidia@nvidia-nano:~$ sudo find / -name *pycuda*
find: ‘/run/user/1000/gvfs’: Permission denied
find: ‘/run/user/120/gvfs’: Permission denied
/home/nvidia/.cache/pip/wheels/a6/60/f0/b1c430c73d281ac3e46070480db50f7907364eb6f6d3188396/pycuda-2019.1.2-cp36-cp36m-linux_aarch64.whl
/home/nvidia/python-envs/tensorflow-demo/lib/python3.6/site-packages/pycuda-2019.1.2.dist-info
/home/nvidia/python-envs/tensorflow-demo/lib/python3.6/site-packages/pycuda
/home/nvidia/python-envs/tensorflow-demo/lib/python3.6/site-packages/pycuda/cuda/pycuda-helpers.hpp
/home/nvidia/python-envs/tensorflow-demo/lib/python3.6/site-packages/pycuda/cuda/pycuda-complex.hpp
/home/nvidia/python-envs/tensorflow-demo/lib/python3.6/site-packages/pycuda/cuda/pycuda-complex-impl.hpp
Let's find TensorRT:
nvidia@nvidia-nano:~$ ls -la /usr/lib/python3.6/dist-packages
total 4272
drwxrwxr-x 10 root root 4096 Nov 28 22:43 .
drwxr-xr-x 33 root root 20480 Dec 7 23:46 ..
-rw-r--r-- 1 root root 2831864 Feb 6 2019 cv2.cpython-36m-aarch64-linux-gnu.so
drwxr-xr-x 2 root root 4096 Aug 16 19:52 graphsurgeon
drwxr-xr-x 2 root root 4096 Aug 16 19:52 graphsurgeon-0.4.1.dist-info
drwxr-xr-x 4 root root 4096 Nov 28 22:43 jetson
drwxr-xr-x 4 root root 4096 Nov 28 22:43 Jetson
-rw-r--r-- 1 root root 746496 Nov 28 22:43 jetson_inference_python.so
-rw-r--r-- 1 root root 725512 Nov 28 22:43 jetson_utils_python.so
drwxr-xr-x 3 root root 4096 Aug 16 19:52 tensorrt
drwxr-xr-x 2 root root 4096 Aug 16 19:52 tensorrt-5.1.6.1.dist-info
drwxr-xr-x 5 root root 4096 Aug 16 19:52 uff
drwxr-xr-x 2 root root 4096 Aug 16 19:52 uff-0.6.3.dist-info
nvidia@nvidia-nano:~$ ls -la /usr/lib/python3.6/dist-packages/tensorrt
total 2156
drwxr-xr-x 3 root root 4096 Aug 16 19:52 .
drwxrwxr-x 10 root root 4096 Nov 28 22:43 ..
-rw-r--r-- 1 root root 2914 Jun 4 2019 __init__.py
drwxr-xr-x 6 root root 4096 Aug 16 19:52 legacy
-rw-r--r-- 1 root root 2190376 Jun 4 2019 tensorrt.so
TensorRT is still not visible to Python in virtual environment though:
(tensorflow-demo) nvidia@nvidia-nano:/usr/src/tensorrt/samples/python$ python -c "import tensorrt as trt"
Traceback (most recent call last):
File "<string>", line 1, in <module>
ModuleNotFoundError: No module named 'tensorrt'
We need to add the path to TensorRT package to PYTHONPATH in virtual environment:
(tensorflow-demo) nvidia@nvidia-nano:/usr/src/tensorrt/samples/python$ export PYTHONPATH=/usr/lib/python3.6/dist-packages:$PYTHONPATH
TensorRT is now visible to Python:
(tensorflow-demo) nvidia@nvidia-nano:/usr/src/tensorrt/samples/python$ python -c "import tensorrt as trt"
(tensorflow-demo) nvidia@nvidia-nano:/usr/src/tensorrt/samples/python$ python
Python 3.6.9 (default, Nov 7 2019, 10:44:02)
[GCC 8.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import tensorrt as trt
>>> trt.__version__
'5.1.6.1'
>>>
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