[[Jetson TX2]]
#contents
|SoC|Xavier|
|CPU|Carmel 8 core|
|GPU|Volta 512 Core|
|Memory|16GB 256Bit LPDDR4|
|L1 d-cache|64K|
|L1 i-cache|128K|
|L2 cache|2048K|
|L3 cache|4096K|
|Storage|32GB eMMC|
-https://www.jetsonhacks.com/2018/10/07/nvpmodel-nvidia-jetson-agx-xavier-developer-kit/
* スペック [#k8abbc96]
-CPU:Carmel 8 cores
-cpuinfo
$ cat /proc/cpuinfo
processor : 0
model name : ARMv8 Processor rev 0 (v8l)
BogoMIPS : 62.50
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp
CPU implementer : 0x4e
CPU architecture: 8
CPU variant : 0x0
CPU part : 0x004
CPU revision : 0
MTS version : 43306594
processor : 1
model name : ARMv8 Processor rev 0 (v8l)
BogoMIPS : 62.50
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp
CPU implementer : 0x4e
CPU architecture: 8
CPU variant : 0x0
CPU part : 0x004
CPU revision : 0
MTS version : 43306594
processor : 2
model name : ARMv8 Processor rev 0 (v8l)
BogoMIPS : 62.50
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp
CPU implementer : 0x4e
CPU architecture: 8
CPU variant : 0x0
CPU part : 0x004
CPU revision : 0
MTS version : 43306594
processor : 3
model name : ARMv8 Processor rev 0 (v8l)
BogoMIPS : 62.50
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp
CPU implementer : 0x4e
CPU architecture: 8
CPU variant : 0x0
CPU part : 0x004
CPU revision : 0
MTS version : 43306594
-出荷時の状態では4コアしか起動していない
-nvpmodelを0にして全力で回せるようにする
sudo nvpmodel -m 0
-8コア現れる
$ cat /proc/cpuinfo
processor : 0
model name : ARMv8 Processor rev 0 (v8l)
BogoMIPS : 62.50
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp
CPU implementer : 0x4e
CPU architecture: 8
CPU variant : 0x0
CPU part : 0x004
CPU revision : 0
MTS version : 43306594
processor : 1
model name : ARMv8 Processor rev 0 (v8l)
BogoMIPS : 62.50
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp
CPU implementer : 0x4e
CPU architecture: 8
CPU variant : 0x0
CPU part : 0x004
CPU revision : 0
MTS version : 43306594
processor : 2
model name : ARMv8 Processor rev 0 (v8l)
BogoMIPS : 62.50
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp
CPU implementer : 0x4e
CPU architecture: 8
CPU variant : 0x0
CPU part : 0x004
CPU revision : 0
MTS version : 43306594
processor : 3
model name : ARMv8 Processor rev 0 (v8l)
BogoMIPS : 62.50
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp
CPU implementer : 0x4e
CPU architecture: 8
CPU variant : 0x0
CPU part : 0x004
CPU revision : 0
MTS version : 43306594
processor : 4
model name : ARMv8 Processor rev 0 (v8l)
BogoMIPS : 62.50
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp
CPU implementer : 0x4e
CPU architecture: 8
CPU variant : 0x0
CPU part : 0x004
CPU revision : 0
MTS version : 43306594
processor : 5
model name : ARMv8 Processor rev 0 (v8l)
BogoMIPS : 62.50
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp
CPU implementer : 0x4e
CPU architecture: 8
CPU variant : 0x0
CPU part : 0x004
CPU revision : 0
MTS version : 43306594
processor : 6
model name : ARMv8 Processor rev 0 (v8l)
BogoMIPS : 62.50
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp
CPU implementer : 0x4e
CPU architecture: 8
CPU variant : 0x0
CPU part : 0x004
CPU revision : 0
MTS version : 43306594
processor : 7
model name : ARMv8 Processor rev 0 (v8l)
BogoMIPS : 62.50
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp
CPU implementer : 0x4e
CPU architecture: 8
CPU variant : 0x0
CPU part : 0x004
CPU revision : 0
MTS version : 43306594
-fphp と asimdhp がArmv8.2の証
-lscpu
$ lscpu
Architecture: aarch64
Byte Order: Little Endian
CPU(s): 8
On-line CPU(s) list: 0-3
Off-line CPU(s) list: 4-7
Thread(s) per core: 1
Core(s) per socket: 2
Socket(s): 2
Vendor ID: Nvidia
Model: 0
Model name: ARMv8 Processor rev 0 (v8l)
Stepping: 0x0
CPU max MHz: 2265.6001
CPU min MHz: 115.2000
BogoMIPS: 62.50
L1d cache: 64K
L1i cache: 128K
L2 cache: 2048K
L3 cache: 4096K
Flags: fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp
-cpufreq
$ cat /sys/bus/cpu/devices/cpu?/cpufreq/cpuinfo_max_freq
2265600
2265600
2265600
2265600
2265600
2265600
2265600
2265600
-kernel
$ uname -a
Linux jetson-0423618001106 4.9.108-tegra #1 SMP PREEMPT Wed Oct 31 15:17:21 PDT 2018 aarch64 aarch64 aarch64 GNU/Linux
-OS
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 18.04.1 LTS
Release: 18.04
Codename: bionic
-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.
-nvcc
$ nvcc --version
nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2018 NVIDIA Corporation
Built on Sun_Aug_12_21:08:25_CDT_2018
Cuda compilation tools, release 10.0, V10.0.117
-deviceQuery
$ /usr/local/cuda-10.0/samples/1_Utilities/deviceQuery/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: "Xavier"
CUDA Driver Version / Runtime Version 10.0 / 10.0
CUDA Capability Major/Minor version number: 7.2
Total amount of global memory: 15819 MBytes (16587653120 bytes)
( 8) Multiprocessors, ( 64) CUDA Cores/MP: 512 CUDA Cores
GPU Max Clock rate: 1500 MHz (1.50 GHz)
Memory Clock rate: 1500 Mhz
Memory Bus Width: 256-bit
L2 Cache Size: 524288 bytes
Maximum Texture Dimension Size (x,y,z) 1D=(131072), 2D=(131072, 65536), 3D=(16384, 16384, 16384)
Maximum Layered 1D Texture Size, (num) layers 1D=(32768), 2048 layers
Maximum Layered 2D Texture Size, (num) layers 2D=(32768, 32768), 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: 65536
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: No
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: Yes
Supports Cooperative Kernel Launch: Yes
Supports MultiDevice Co-op Kernel Launch: Yes
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
* Jetpack [#q62a11a3]
-[[Download Jetpack 4.1>https://developer.nvidia.com/embedded-computing]]
* All ON [#jde078b2]
-nvpmodel 0 is maxN
!$ sudo crontab -l | tail -n 2
@reboot nvpmodel -m 0
@reboot echo 255 > /sys/kernel/debug/tegra_fan/target_pwm
*インストール [#zefec371]
-cmake以外はだいたい入ってた
sudo apt-get -y install cmake ccache
*perf [#u76c98fe]
-[[Installing Linux performance monitoring tools on Jetson TX2 - NVIDIA Developer Forums>https://devtalk.nvidia.com/default/topic/1035531/jetson-tx2/installing-linux-performance-monitoring-tools-on-jetson-tx2/]]
-perf はカーネルとぴったり合ったバージョンのlinux-toolsを入れる必要がある
-が、Jetsonのkernelはカスタマイズ版だしなぁ、と思っていたら、ピッタリの項目があった。
-/usr/src/linux-headers-4.9.108-tegra/kernel-4.9/tools/perf 以下にソースコードがあるから、そこでsudo make すれば良いという豪快な答え。すげぇ。
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