Jetson Nano

Jetson TX1

SoC	Tegra X1
CPU	Cortex A57 4 core
GPU	Maxwell 128 Core
Memory	4GB LPDDR4
Storage	Micro SD

Arm:Arm Cortex A57

スペック†

CPU:Cortex-A57 (1.4GHz)

cpuinfo

$ cat /proc/cpuinfo 
processor	: 0
model name	: ARMv8 Processor rev 1 (v8l)
BogoMIPS	: 38.40
Features	: fp asimd evtstrm aes pmull sha1 sha2 crc32
CPU implementer	: 0x41
CPU architecture: 8
CPU variant	: 0x1
CPU part	: 0xd07
CPU revision	: 1

processor	: 1
model name	: ARMv8 Processor rev 1 (v8l)
BogoMIPS	: 38.40
Features	: fp asimd evtstrm aes pmull sha1 sha2 crc32
CPU implementer	: 0x41
CPU architecture: 8
CPU variant	: 0x1
CPU part	: 0xd07
CPU revision	: 1

processor	: 2
model name	: ARMv8 Processor rev 1 (v8l)
BogoMIPS	: 38.40
Features	: fp asimd evtstrm aes pmull sha1 sha2 crc32
CPU implementer	: 0x41
CPU architecture: 8
CPU variant	: 0x1
CPU part	: 0xd07
CPU revision	: 1

processor	: 3
model name	: ARMv8 Processor rev 1 (v8l)
BogoMIPS	: 38.40
Features	: fp asimd evtstrm aes pmull sha1 sha2 crc32
CPU implementer	: 0x41
CPU architecture: 8
CPU variant	: 0x1
CPU part	: 0xd07
CPU revision	: 1

lscpu

$ lscpu
Architecture:        aarch64
Byte Order:          Little Endian
CPU(s):              4
On-line CPU(s) list: 0-3
Thread(s) per core:  1
Core(s) per socket:  4
Socket(s):           1
Vendor ID:           ARM
Model:               1
Model name:          Cortex-A57
Stepping:            r1p1
CPU max MHz:         1428.0000
CPU min MHz:         102.0000
BogoMIPS:            38.40
L1d cache:           32K
L1i cache:           48K
L2 cache:            2048K
Flags:               fp asimd evtstrm aes pmull sha1 sha2 crc32

cpufreq

$ cat /sys/bus/cpu/devices/cpu?/cpufreq/cpuinfo_max_freq
1428000
1428000
1428000
1428000

kernel

$ uname -a
Linux nvidia-nano 4.9.140-tegra #1 SMP PREEMPT Tue Jul 16 17:04:49 PDT 2019 aarch64 aarch64 aarch64 GNU/Linux

$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 18.04.2 LTS
Release:	18.04
Codename:	bionic

auxv

$ xxd -e -g8 /proc/self/auxv 
00000000: 0000000000000021 0000007f92ef4000  !........@......
00000010: 0000000000000010 00000000000000ff  ................
00000020: 0000000000000006 0000000000001000  ................
00000030: 0000000000000011 0000000000000064  ........d.......
00000040: 0000000000000003 00000055859d9040  ........@...U...
00000050: 0000000000000004 0000000000000038  ........8.......
00000060: 0000000000000005 0000000000000008  ................
00000070: 0000000000000007 0000007f92ec9000  ................
00000080: 0000000000000008 0000000000000000  ................
00000090: 0000000000000009 00000055859db1a4  ............U...
000000a0: 000000000000000b 00000000000003e8  ................
000000b0: 000000000000000c 00000000000003e8  ................
000000c0: 000000000000000d 00000000000003e8  ................
000000d0: 000000000000000e 00000000000003e8  ................
000000e0: 0000000000000017 0000000000000000  ................
000000f0: 0000000000000019 0000007fe8d6d208  ................
00000100: 000000000000001f 0000007fe8d6dfeb  ................
00000110: 000000000000000f 0000007fe8d6d218  ................
00000120: 0000000000000000 0000000000000000  ................

deviceQuery

/usr/local/cuda-10.0/samples/1_Utilities/deviceQuery/deviceQuery Starting...

 CUDA Device Query (Runtime API) version (CUDART static linking)

Detected 1 CUDA Capable device(s)

Device 0: "NVIDIA Tegra X1"
  CUDA Driver Version / Runtime Version          10.0 / 10.0
  CUDA Capability Major/Minor version number:    5.3
  Total amount of global memory:                 3956 MBytes (4148543488 bytes)
  ( 1) Multiprocessors, (128) CUDA Cores/MP:     128 CUDA Cores
  GPU Max Clock rate:                            922 MHz (0.92 GHz)
  Memory Clock rate:                             13 Mhz
  Memory Bus Width:                              64-bit
  L2 Cache Size:                                 262144 bytes
  Maximum Texture Dimension Size (x,y,z)         1D=(65536), 2D=(65536, 65536), 3D=(4096, 4096, 4096)
  Maximum Layered 1D Texture Size, (num) layers  1D=(16384), 2048 layers
  Maximum Layered 2D Texture Size, (num) layers  2D=(16384, 16384), 2048 layers
  Total amount of constant memory:               65536 bytes
  Total amount of shared memory per block:       49152 bytes
  Total number of registers available per block: 32768
  Warp size:                                     32
  Maximum number of threads per multiprocessor:  2048
  Maximum number of threads per block:           1024
  Max dimension size of a thread block (x,y,z): (1024, 1024, 64)
  Max dimension size of a grid size    (x,y,z): (2147483647, 65535, 65535)
  Maximum memory pitch:                          2147483647 bytes
  Texture alignment:                             512 bytes
  Concurrent copy and kernel execution:          Yes with 1 copy engine(s)
  Run time limit on kernels:                     Yes
  Integrated GPU sharing Host Memory:            Yes
  Support host page-locked memory mapping:       Yes
  Alignment requirement for Surfaces:            Yes
  Device has ECC support:                        Disabled
  Device supports Unified Addressing (UVA):      Yes
  Device supports Compute Preemption:            No
  Supports Cooperative Kernel Launch:            No
  Supports MultiDevice Co-op Kernel Launch:      No
  Device PCI Domain ID / Bus ID / location ID:   0 / 0 / 0
  Compute Mode:
     < Default (multiple host threads can use ::cudaSetDevice() with device simultaneously) >

deviceQuery, CUDA Driver = CUDART, CUDA Driver Version = 10.0, CUDA Runtime Version = 10.0, NumDevs = 1
Result = PASS

gcc

$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/aarch64-linux-gnu/7/lto-wrapper
Target: aarch64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro 7.4.0-1ubuntu1~18.04.1'
--with-bugurl=file:///usr/share/doc/gcc-7/README.Bugs
--enable-languages=c,ada,c++,go,d,fortran,objc,obj-c++ --prefix=/usr
--with-gcc-major-version-only --program-suffix=-7 --program-prefix=aarch64-linux-gnu-
--enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext
--enable-threads=posix --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu
--enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new
--enable-gnu-unique-object --disable-libquadmath --disable-libquadmath-support --enable-plugin
--enable-default-pie --with-system-zlib --enable-multiarch --enable-fix-cortex-a53-843419
--disable-werror --enable-checking=release --build=aarch64-linux-gnu --host=aarch64-linux-gnu
--target=aarch64-linux-gnu
Thread model: posix
gcc version 7.4.0 (Ubuntu/Linaro 7.4.0-1ubuntu1~18.04.1)

nvcc

$ /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

ccache

nvccに対応したバージョン3.6をパッケージでインストールする&note{ccache-3-6-deb-package-page:3.6-1 : ccache : arm64 : Disco (19.04) : Ubuntu, Version 3.6, 2019-07-28閲覧};

$ sudo dpkg -i ccache_3.6-1_arm64.deb
Selecting previously unselected package ccache.
(Reading database ... 138239 files and directories currently installed.)
Preparing to unpack ccache_3.6-1_arm64.deb ...
Unpacking ccache (3.6-1) ...
Setting up ccache (3.6-1) ...
Updating symlinks in /usr/lib/ccache ...
Processing triggers for man-db (2.8.3-2ubuntu0.1) ...

$ ccache --version
ccache version 3.6

Copyright (C) 2002-2007 Andrew Tridgell
Copyright (C) 2009-2019 Joel Rosdahl

This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 3 of the License, or (at your option) any later
version.

cmake

パッケージで提供されてるのが3.10.2。nvcc+ccacheに対応していて嬉しい。

$ sudo apt -y install cmake
$ cmake --version
cmake version 3.10.2

CMake suite maintained and supported by Kitware (kitware.com/cmake).

UART Debug console
- 115200 8N1&note{jetson-tx1-serial-console:Jetson Nano - Serial Console - JetsonHacks, 2019-07-30閲覧};

↑

その他セットアップ†

$ ssh-keygen -t ecdsa
$ ssh-keygen -f hoge
$ cat hoge.pub >> .ssh/authorized_keys
$ sudo apt update && sudo apt upgrade
$ git config --global user.name "Tomoaki Teshima"
$ git config --global user.email "tomoaki.teshima@gmail.com"
$ time sudo apt-get -y install libgtk-3-dev openjdk-8-jre-headless

↑

Jetson TX1との比較†

OSとかCUDAとかソフト的な変更は割愛

cpu (/proc/cpuinfo)

evtstrm機能がCortexA57に追加されている

+ Features	: fp asimd evtstrm aes pmull sha1 sha2 crc32
- Features	: fp asimd aes pmull sha1 sha2 crc32

gpu (deviceQuery)

きっちりコア数が半分に減っている

   CUDA Capability Major/Minor version number:    5.3
+  Total amount of global memory:                 3964 MBytes (4156932096 bytes)
+  ( 1) Multiprocessors, (128) CUDA Cores/MP:     128 CUDA Cores
-  Total amount of global memory:                 3994 MBytes (4188004352 bytes)
-  ( 2) Multiprocessors, (128) CUDA Cores/MP:     256 CUDA Cores

スペック†

その他セットアップ†

Jetson TX1との比較†

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