---
title: 查看帮助信息
description: "查看Ascend DMI工具帮助信息。"
url: https://www.hiascend.com/document/detail/zh/mindcluster/latest/toolbox/toolboxug/toolboxug_0013.html
sourcePath: /source/zh/mindcluster/2610/toolbox/toolboxug/toolboxug_0013.html
indexId: 4aa59779b7c079a850d1d178ec564afc306f6d3017127e35245f1c9424e9534165
---
# 查看帮助信息

查看Ascend DMI工具帮助信息。


**表1 参数说明**

| 参数 | 说明 | 是否必填 |
| --- | --- | --- |
| [\-h, \-\-help] | 查看Ascend DMI工具帮助信息。 | 是 |


#### 使用示例

ascend-dmi -h

ascend-dmi --help

```
[***@***]# ascend-dmi -h
Usage: ascend-dmi <option> [args]
 
Options:

  -v, --version                     Displays the tool version information.
  -h, --help                        Displays help information.
  -i, --info                        Displays the real-time status of the device.
  -c, --compatible                  Checks software and hardware version compatibility.
  --bw, --bandwidth                 Performs a bandwidth test, -bw is supported, but it is
                                    recommended to use --bw.

  -l, --latency                     Performs a latency test.
  -f, --flops                       Computing power test.
  -p, --power                       Power consumption test.
  --dg, --diagnosis                 Fault diagnosis, -dg is supported, but it is
                                    recommended to use --dg.

  --sq, --signal-quality            Displays ub, roce and pcie signal quality. -sq is
                                    supported, but it is recommended to use --sq.

  --pc, --prbs-check                PRBS(Pseudo-Random Binary Sequences) test on device.
                                    -pc is supported, but it is recommended to use --pc.

  -r, --reset                       Performs in-band hot reset and restore voltage on NPU
                                    device.

Run 'ascend-dmi <option> <--help|-h>' for more information on a command.
```