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<markdown>
# servst

[Gitlab](https://www.frcbs.tsinghua.edu.cn/gitlab/zhangyuankuan/servst)

## 1. Description
`servst` is primarily a collection of tools designed to inspect the utilization 
status of each server. Then I add support for MD tasks, to show them or kill 
them conveniently and thoroughly.

- `gpust` and `cpust` provide status for servers
- `gpurf` and `cpurf` refresh status information for all or specific servers
- `lsmd`  and `lsmds` fetch the latest progress of MD tasks for servers
- `killmd` kill target MD tasks

## 2. Installation

There is no need for installation. The commands are available as global aliases.

HOWEVER, password-free configuration is recommended for `gpurf`, `cpurf` 
and `lsmds`

## 3. Usage

### 3.1 For gpust and cpust:

These commands can be used on any server to get GPU or CPU status of any server.
If prompted, enter the password of `rainbow`.

```
+---------------------------- GPU STATUS ----------------------------+
| Server: name of the server                                         |
| Occupation: * for occupied GPU, 4 for free 4080 card, and so on.   |
| processing servers:                                                |
| yellow purple orange indigo gold green white red blue              |
| 2024-07-10 10:00:01                                                |
+--------------------------------------------------------------------+

Server  Occupation      Last Updated
blue    33              2024-07-10 10:00:01
gold    3               2024-07-10 10:00:01
green   3               2024-07-10 10:00:01
indigo  33              2024-07-10 10:00:01
orange  33              2024-07-10 10:00:01
purple  4*******        2024-07-10 10:00:01
red     33              2024-07-10 10:00:01
yellow  444*****        2024-07-10 10:00:01
```

```
+---------------------------- CPU STATUS ----------------------------+
| Server: name of the server                                         |
| Total: total number of cores in one server                         |
| Idle: average number of idle (not used) cores in the last 5 seconds|
| processing servers:                                                |
| yellow purple orange indigo gold green white violet black          |
| 2024-07-10 10:00:01                                                |
+--------------------------------------------------------------------+

Server  Total   Idle    Last Updated
black   56      28      2024-07-10 10:00:01
gold    56      32      2024-07-10 10:00:01
green   24      22      2024-07-10 10:00:01
indigo  56      15      2024-07-10 10:00:01
orange  56      31      2024-07-10 10:00:01
purple  96      10      2024-07-10 10:00:01
violet  56      32      2024-07-10 10:00:01
yellow  96      06      2024-07-10 10:00:01
```

### 3.2 For gpurf and cpurf:

1. `gpurf` updates the status of all servers. Without password-free configuration,
you'll need to enter the password for 11 times... So it's highly likely that
you will not use this one.

2. `gpurf yellow` updates the status of merely the wanted server `yellow`. You
must either have password-free access or provide the password of `yellow` then 
`rainbow` when prompted. The statuses of the other servers will remain as 
previously displayed. The column `Last Updated` indicates updating time of each 
server.

```
+---------------------------- GPU STATUS ----------------------------+
| Server: name of the server                                         |
| Occupation: * for occupied GPU, 4 for free 4080 card, and so on.   |
| processing servers:                                                |
| yellow purple orange indigo gold green white red blue              |
| 2024-07-10 10:00:01                                                |
+--------------------------------------------------------------------+

Server  Occupation      Last Updated
blue    33              2024-07-10 10:00:01
gold    3               2024-07-10 10:00:01
green   3               2024-07-10 10:00:01
indigo  33              2024-07-10 10:00:01
orange  33              2024-07-10 10:00:01
purple  4*******        2024-07-10 10:00:01
red     33              2024-07-10 10:00:01
white   3               2024-07-10 10:00:01
yellow  444*****        2024-07-10 10:26:54
```

### 3.3 For lsmd and lsmds

1. `lsmd` will get MD tasks' status in the current server. `lsmds` will get the
statuses for several servers.

2. `lsmds purple` will fetch the information of the wanted server `purple`.

```
purple
/home/zhangyk/tmp9/5_ff14SB_1/8ubuild/5_run/run00094.nc
/home/zhangyk/tmp9/4_ff99SBildn_1/8ubuild/5_run/run00094.nc
/home/zhangyk/tmp9/6_ff19SB_1/8ubuild/5_run/run00180.nc
yellow

red
/mnt/d4/zhangyk/tmp2/6_ff19SB_1/8ubuild/5_run/run00930.nc
blue
/home/zhangyk/tmp7/3_ff99SB_1/8ubuild/5_run/run00301.nc
/home/zhangyk/tmp6/4_ff99SBildn_1/8ubuild/5_run/run00516.nc
orange
/home/zhangyk/tmp6/3_ff99SB_1/8ubuild/5_run/run00374.nc
/home/zhangyk/tmp6/1_ff94_1/8ubuild/5_run/run00403.nc
indigo
/home/zhangyk/tmp7/2_ff99_1/8ubuild/5_run/run00378.nc
/home/zhangyk/tmp7/1_ff94_1/8ubuild/5_run/run00385.nc
gold
/home/zhangyk/tmp7/4_ff99SBildn_1/8ubuild/5_run/run00081.nc
green
/mnt/d8/zhangyk/tmp2/7_charmm22_1/8ubuild/5_run/run00964.nc
```

### 3.4 For killmd

Guide can be called by typing `killmd -h`.
```
usage: killmd.py [-h] [-a] [-p PID] [-g GPU]

Kill series of md tasks instantly.

options:
  -h, --help         show this help message and exit
  -a, --all          Kill all md tasks
  -p PID, --pid PID  Process ID to kill
  -g GPU, --gpu GPU  GPU id
```

- `killmd -a` will kill all md tasks in the current server.
- `killmd -p 12345` will kill the task with pid `12345`, as well as related tasks
- `killmd -g 0` will kill tasks runing on `GPU 0`

## 4. Acknowledgement

Thanks to Prof. Xue and Zhewei Qiu. I optimized their script 
`checkamber.py` to get `lsmd.py`.
</markdown>
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