ODROID-N2

SoC	Amlogic S922X
CPU	Arm Cortex A73 1.8Ghz Quad-core+Cortex A53 1.9GHz Dual-core
GPU	Mali G52
Memory	DDR4 4GB
Storage	32GB eMMC

Arm:Arm Cortex A53:Arm Cortex A73

スペック†

CPU: Cortex-A73+A53

kernel

$ uname -a
Linux odroid 4.9.162-22 #1 SMP PREEMPT Mon Mar 25 12:17:29 -03 2019 aarch64 aarch64 aarch64 GNU/Linux
odroid@odroid:~$ gcc --version
gcc (Ubuntu/Linaro 7.3.0-27ubuntu1~18.04) 7.3.0
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

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

cpuinfo

odroid@odroid:~$ cat /proc/cpuinfo 
processor	: 0
BogoMIPS	: 48.00
Features	: fp asimd evtstrm aes pmull sha1 sha2 crc32
CPU implementer	: 0x41
CPU architecture: 8
CPU variant	: 0x0
CPU part	: 0xd03
CPU revision	: 4

processor	: 1
BogoMIPS	: 48.00
Features	: fp asimd evtstrm aes pmull sha1 sha2 crc32
CPU implementer	: 0x41
CPU architecture: 8
CPU variant	: 0x0
CPU part	: 0xd03
CPU revision	: 4

processor	: 2
BogoMIPS	: 48.00
Features	: fp asimd evtstrm aes pmull sha1 sha2 crc32
CPU implementer	: 0x41
CPU architecture: 8
CPU variant	: 0x0
CPU part	: 0xd09
CPU revision	: 2

processor	: 3
BogoMIPS	: 48.00
Features	: fp asimd evtstrm aes pmull sha1 sha2 crc32
CPU implementer	: 0x41
CPU architecture: 8
CPU variant	: 0x0
CPU part	: 0xd09
CPU revision	: 2

processor	: 4
BogoMIPS	: 48.00
Features	: fp asimd evtstrm aes pmull sha1 sha2 crc32
CPU implementer	: 0x41
CPU architecture: 8
CPU variant	: 0x0
CPU part	: 0xd09
CPU revision	: 2

processor	: 5
BogoMIPS	: 48.00
Features	: fp asimd evtstrm aes pmull sha1 sha2 crc32
CPU implementer	: 0x41
CPU architecture: 8
CPU variant	: 0x0
CPU part	: 0xd09
CPU revision	: 2

CPU info	: 290a4000011c0d000006383448564d50
Serial		: 8bc59af9-66d8-4ec0-8caf-001e064229f9
Hardware	: Hardkernel ODROID-N2
Revision	: 0400

lscpu

$ lscpu
Architecture:        aarch64
Byte Order:          Little Endian
CPU(s):              6
On-line CPU(s) list: 0-5
Thread(s) per core:  1
Core(s) per socket:  3
Socket(s):           2
Vendor ID:           ARM
Model:               4
Model name:          Cortex-A53
Stepping:            r0p4
CPU max MHz:         1896.0000
CPU min MHz:         100.0000
BogoMIPS:            48.00
Flags:               fp asimd evtstrm aes pmull sha1 sha2 crc32

auxv

$ xxd -e -g8 /proc/self/auxv
00000000: 0000000000000021 0000007f79aa9000  !..........y....
00000010: 0000000000000010 00000000000000ff  ................
00000020: 0000000000000006 0000000000001000  ................
00000030: 0000000000000011 0000000000000064  ........d.......
00000040: 0000000000000003 0000005591afe040  ........@...U...
00000050: 0000000000000004 0000000000000038  ........8.......
00000060: 0000000000000005 0000000000000008  ................
00000070: 0000000000000007 0000007f79a7e000  ...........y....
00000080: 0000000000000008 0000000000000000  ................
00000090: 0000000000000009 0000005591b001a4  ............U...
000000a0: 000000000000000b 00000000000003e8  ................
000000b0: 000000000000000c 00000000000003e8  ................
000000c0: 000000000000000d 00000000000003e8  ................
000000d0: 000000000000000e 00000000000003e8  ................
000000e0: 0000000000000017 0000000000000000  ................
000000f0: 0000000000000019 0000007fc664a3a8  ..........d.....
00000100: 000000000000001f 0000007fc664afeb  ..........d.....
00000110: 000000000000000f 0000007fc664a3b8  ..........d.....
00000120: 0000000000000000 0000000000000000  ................

0000000000000021	0000007f79aa9000
0000000000000010	00000000000000ff
0000000000000006	0000000000001000
0000000000000011	0000000000000064
0000000000000003	0000005591afe040
0000000000000004	0000000000000038
0000000000000005	0000000000000008
0000000000000007	0000007f79a7e000
0000000000000008	0000000000000000
0000000000000009	0000005591b001a4
000000000000000b	00000000000003e8
000000000000000c	00000000000003e8
000000000000000d	00000000000003e8
000000000000000e	00000000000003e8
0000000000000017	0000000000000000
0000000000000019	0000007fc664a3a8
000000000000001f	0000007fc664afeb
000000000000000f	0000007fc664a3b8
0000000000000000	0000000000000000

cpufreq 1.9GHz

$ cat /sys/bus/cpu/devices/cpu?/cpufreq/cpuinfo_max_freq
1896000
1896000
1800000
1800000
1800000
1800000

gcc

$ gcc --version
gcc (Ubuntu/Linaro 7.3.0-27ubuntu1~18.04) 7.3.0
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

cmake

$ cmake --version
cmake version 3.10.2

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

clinfo

$ clinfo
Number of platforms                               0

(´・ω・｀)しょんぼり

ここに詳細が書いてあった。

$ sudo mkdir -p /etc/OpenCL/vendors
$ sudo touch /etc/OpenCL/vendors/mali.icd
$ sudo vim /etc/OpenCL/vendors/mali.icd
$ sudo cat /etc/OpenCL/vendors/mali.icd 
libOpenCL.so
$ cd /usr/lib/aarch64-linux-gnu/
$ sudo ln -s libMali.so libOpenCL.so
$ clinfo
Number of platforms                               1
  Platform Name                                   ARM Platform
  Platform Vendor                                 ARM
  Platform Version                                OpenCL 2.0 git.c8adbf9.122c9daed32dbba4b3056f41a2f23c58
  Platform Profile                                FULL_PROFILE
  Platform Extensions                             cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_byte_addressable_store
cl_khr_3d_image_writes cl_khr_int64_base_atomics cl_khr_int64_extended_atomics cl_khr_fp16 cl_khr_icd cl_khr_egl_image cl_khr_image2d_from_buffer cl_khr_depth_images cl_khr_subgroups cl_khr_create_command_queue cl_arm_core_id
cl_arm_printf cl_arm_thread_limit_hint cl_arm_non_uniform_work_group_size cl_arm_import_memory cl_arm_shared_virtual_memory
  Platform Extensions function suffix             ARM

  Platform Name                                   ARM Platform
Number of devices                                 1
  Device Name                                     Mali-G52
  Device Vendor                                   ARM
  Device Vendor ID                                0x72120000
  Device Version                                  OpenCL 2.0 git.c8adbf9.122c9daed32dbba4b3056f41a2f23c58
  Driver Version                                  2.0
  Device OpenCL C Version                         OpenCL C 2.0 git.c8adbf9.122c9daed32dbba4b3056f41a2f23c58
  Device Type                                     GPU
  Device Profile                                  FULL_PROFILE
  Device Available                                Yes
  Compiler Available                              Yes
  Linker Available                                Yes
  Max compute units                               2
  Max clock frequency                             750MHz
  Device Partition                                (core)
    Max number of sub-devices                     0
    Supported partition types                     None
  Max work item dimensions                        3
  Max work item sizes                             384x384x384
  Max work group size                             384
  Preferred work group size multiple              8
  Preferred / native vector sizes                 
    char                                                16 / 4       
    short                                                8 / 2       
    int                                                  4 / 1       
    long                                                 2 / 1       
    half                                                 8 / 2        (cl_khr_fp16)
    float                                                4 / 1       
    double                                               0 / 0        (n/a)
  Half-precision Floating-point support           (cl_khr_fp16)
    Denormals                                     Yes
    Infinity and NANs                             Yes
    Round to nearest                              Yes
    Round to zero                                 Yes
    Round to infinity                             Yes
    IEEE754-2008 fused multiply-add               Yes
    Support is emulated in software               No
  Single-precision Floating-point support         (core)
    Denormals                                     Yes
    Infinity and NANs                             Yes
    Round to nearest                              Yes
    Round to zero                                 Yes
    Round to infinity                             Yes
    IEEE754-2008 fused multiply-add               Yes
    Support is emulated in software               No
    Correctly-rounded divide and sqrt operations  No
  Double-precision Floating-point support         (n/a)
  Address bits                                    64, Little-Endian
  Global memory size                              3887435776 (3.62GiB)
  Error Correction support                        No
  Max memory allocation                           971858944 (926.8MiB)
  Unified memory for Host and Device              Yes
  Shared Virtual Memory (SVM) capabilities        (core)
    Coarse-grained buffer sharing                 Yes
    Fine-grained buffer sharing                   No
    Fine-grained system sharing                   No
    Atomics                                       No
  Shared Virtual Memory (SVM) capabilities (ARM)  
    Coarse-grained buffer sharing                 Yes
    Fine-grained buffer sharing                   No
    Fine-grained system sharing                   No
    Atomics                                       No
  Minimum alignment for any data type             128 bytes
  Alignment of base address                       1024 bits (128 bytes)
  Preferred alignment for atomics                 
    SVM                                           0 bytes
    Global                                        0 bytes
    Local                                         0 bytes
  Max size for global variable                    65536 (64KiB)
  Preferred total size of global vars             0
  Global Memory cache type                        Read/Write
  Global Memory cache size                        131072 (128KiB)
  Global Memory cache line size                   64 bytes
  Image support                                   Yes
    Max number of samplers per kernel             16
    Max size for 1D images from buffer            65536 pixels
    Max 1D or 2D image array size                 2048 images
    Base address alignment for 2D image buffers   32 bytes
    Pitch alignment for 2D image buffers          64 pixels
    Max 2D image size                             65536x65536 pixels
    Max 3D image size                             65536x65536x65536 pixels
    Max number of read image args                 128
    Max number of write image args                64
    Max number of read/write image args           64
  Max number of pipe args                         16
  Max active pipe reservations                    1
  Max pipe packet size                            1024
  Local memory type                               Global
  Local memory size                               32768 (32KiB)
  Max number of constant args                     8
  Max constant buffer size                        65536 (64KiB)
  Max size of kernel argument                     1024
  Queue properties (on host)                      
    Out-of-order execution                        Yes
    Profiling                                     Yes
  Queue properties (on device)                    
    Out-of-order execution                        Yes
    Profiling                                     Yes
    Preferred size                                2097152 (2MiB)
    Max size                                      16777216 (16MiB)
  Max queues on device                            1
  Max events on device                            1024
  Prefer user sync for interop                    No
  Profiling timer resolution                      1000ns
  Execution capabilities                          
    Run OpenCL kernels                            Yes
    Run native kernels                            No
  printf() buffer size                            1048576 (1024KiB)
  Built-in kernels                                
  Device Extensions                               cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_byte_addressable_store
cl_khr_3d_image_writes cl_khr_int64_base_atomics cl_khr_int64_extended_atomics cl_khr_fp16 cl_khr_icd cl_khr_egl_image cl_khr_image2d_from_buffer cl_khr_depth_images cl_khr_subgroups cl_khr_create_command_queue cl_arm_core_id
cl_arm_printf cl_arm_thread_limit_hint cl_arm_non_uniform_work_group_size cl_arm_import_memory cl_arm_shared_virtual_memory

NULL platform behavior
  clGetPlatformInfo(NULL, CL_PLATFORM_NAME, ...)  ARM Platform
  clGetDeviceIDs(NULL, CL_DEVICE_TYPE_ALL, ...)   Success [ARM]
  clCreateContext(NULL, ...) [default]            Success [ARM]
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_DEFAULT)  Success (1)
    Platform Name                                 ARM Platform
    Device Name                                   Mali-G52
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_CPU)  No devices found in platform
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_GPU)  Success (1)
    Platform Name                                 ARM Platform
    Device Name                                   Mali-G52
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_ACCELERATOR)  No devices found in platform
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_CUSTOM)  No devices found in platform
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_ALL)  Success (1)
    Platform Name                                 ARM Platform
    Device Name                                   Mali-G52

ICD loader properties
  ICD loader Name                                 OpenCL ICD Loader
  ICD loader Vendor                               OCL Icd free software
  ICD loader Version                              2.2.11
  ICD loader Profile                              OpenCL 2.1

UART Debug console
- accessory:development:usb_uart_kit [ODROID Wiki]&note{ref-debug-uart:accessory:development:usb_uart_kit [ODROID Wiki]};
- 3.3V 115200 8N1

↑

購入品†

32GB eMMC
ODROID-N2 4GB

↑

初期設定†

1回目の電源投入時はシステム設定のためにすぐに電源が切れる。規定の動作。
電源再投入は、ボタンが無いので、電源プラグを抜いて再度差し込む

↑

パッケージ諸々のアップデート†

Ubuntuなので、apt-getでアップデート可能
```
$ sudo apt update
$ sudo apt upgrade
```
同梱のマニュアルによると、初回時にシステムを最新にするために以下のコマンドを実行するように書かれている
```
$ sudo apt update
$ sudo apt full-upgrade
$ sudo reboot
```

↑

諸々初期設定†

必要なのはgit、ccache、vim など

$ time sudo apt install libgtk-3-dev openjdk-8-jre-headless git ccache clinfo vim
$ ssh-keygen -t ecdsa
$ ssh-keygen -f hoge
$ cat hoge.pub >> .ssh/authorized_keys
$ sudo timedatectl set-timezone Asia/Tokyo
$ git config --global user.name "Foo Bar"
$ git config --global user.email foo@bar.com

スペック†

購入品†

初期設定†

パッケージ諸々のアップデート†

諸々初期設定†

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