概要
NVIDIA GPUのECC機能を確認する方法。
（例示は、 GeForce GTX 1050 Ti の場合。）
方法
コマンド
>nvidia-smi
表示例（★印追加）
Fri Jan 08 05:30:32 2021
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 451.67 Driver Version: 451.67 CUDA Version: 11.0 |
|-------------------------------+----------------------+----------------------+
| GPU Name TCC/WDDM | Bus-Id Disp.A | Volatile Uncorr. ★ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
|===============================+======================+======================|
| 0 GeForce GTX 105... WDDM | 00000000:01:00.0 Off | N/A |
| N/A 39C P8 N/A / N/A | 78MiB / 4096MiB | 0% Default |
+-------------------------------+----------------------+----------------------+
+-----------------------------------------------------------------------------+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|=============================================================================|
| No running processes found |
+-----------------------------------------------------------------------------+
コマンド
nvidia-smi -i 0 -q
表示例（★印追加）
==============NVSMI LOG==============
Timestamp : Fri Jan 08 05:30:24 2021
Driver Version : 451.67
CUDA Version : 11.0
Attached GPUs : 1
GPU 00000000:01:00.0
Product Name : GeForce GTX 1050 Ti
Product Brand : GeForce
Display Mode : Disabled
Display Active : Disabled
Persistence Mode : N/A
Accounting Mode : Disabled
Accounting Mode Buffer Size : 4000
Driver Model
Current : WDDM
Pending : WDDM
Serial Number : N/A
GPU UUID : GPU-68974873-d8f4-9c49-f05a-010078af07e5
Minor Number : N/A
VBIOS Version : 86.07.63.00.67
MultiGPU Board : No
Board ID : 0x100
GPU Part Number : N/A
Inforom Version
Image Version : N/A
OEM Object : N/A
ECC Object : N/A
Power Management Object : N/A
GPU Operation Mode
Current : N/A
Pending : N/A
GPU Virtualization Mode
Virtualization Mode : None
Host VGPU Mode : N/A
IBMNPU
Relaxed Ordering Mode : N/A
PCI
Bus : 0x01
Device : 0x00
Domain : 0x0000
Device Id : 0x1C8C10DE
Bus Id : 00000000:01:00.0
Sub System Id : 0x08241028
GPU Link Info
PCIe Generation
Max : 3
Current : 1
Link Width
Max : 16x
Current : 16x
Bridge Chip
Type : N/A
Firmware : N/A
Replays Since Reset : 0
Replay Number Rollovers : 0
Tx Throughput : 5000 KB/s
Rx Throughput : 15000 KB/s
Fan Speed : N/A
Performance State : P8
Clocks Throttle Reasons
Idle : Active
Applications Clocks Setting : Not Active
SW Power Cap : Not Active
HW Slowdown : Not Active
HW Thermal Slowdown : Not Active
HW Power Brake Slowdown : Not Active
Sync Boost : Not Active
SW Thermal Slowdown : Not Active
Display Clock Setting : Not Active
FB Memory Usage
Total : 4096 MiB
Used : 78 MiB
Free : 4018 MiB
BAR1 Memory Usage
Total : 256 MiB
Used : 228 MiB
Free : 28 MiB
Compute Mode : Default
Utilization
Gpu : 1 %
Memory : 0 %
Encoder : 0 %
Decoder : 0 %
Encoder Stats
Active Sessions : 0
Average FPS : 0
Average Latency : 0
FBC Stats
Active Sessions : 0
Average FPS : 0
Average Latency : 0
★Ecc Mode
Current : N/A
Pending : N/A
★ECC Errors
Volatile
Single Bit
Device Memory : N/A
Register File : N/A
L1 Cache : N/A
L2 Cache : N/A
Texture Memory : N/A
Texture Shared : N/A
CBU : N/A
Total : N/A
Double Bit
Device Memory : N/A
Register File : N/A
L1 Cache : N/A
L2 Cache : N/A
Texture Memory : N/A
Texture Shared : N/A
CBU : N/A
Total : N/A
Aggregate
Single Bit
Device Memory : N/A
Register File : N/A
L1 Cache : N/A
L2 Cache : N/A
Texture Memory : N/A
Texture Shared : N/A
CBU : N/A
Total : N/A
Double Bit
Device Memory : N/A
Register File : N/A
L1 Cache : N/A
L2 Cache : N/A
Texture Memory : N/A
Texture Shared : N/A
CBU : N/A
Total : N/A
Retired Pages
Single Bit ECC : N/A
Double Bit ECC : N/A
Pending Page Blacklist : N/A
Remapped Rows : N/A
Temperature
GPU Current Temp : 38 C
GPU Shutdown Temp : 102 C
GPU Slowdown Temp : 97 C
GPU Max Operating Temp : 78 C
Memory Current Temp : N/A
Memory Max Operating Temp : N/A
Power Readings
Power Management : N/A
Power Draw : N/A
Power Limit : N/A
Default Power Limit : N/A
Enforced Power Limit : N/A
Min Power Limit : N/A
Max Power Limit : N/A
Clocks
Graphics : 607 MHz
SM : 607 MHz
Memory : 405 MHz
Video : 544 MHz
Applications Clocks
Graphics : N/A
Memory : N/A
Default Applications Clocks
Graphics : N/A
Memory : N/A
Max Clocks
Graphics : 1911 MHz
SM : 1911 MHz
Memory : 3504 MHz
Video : 1708 MHz
Max Customer Boost Clocks
Graphics : N/A
Clock Policy
Auto Boost : N/A
Auto Boost Default : N/A
Processes : None
まとめ
ECC機能ありの例は、機会があれば、示す。