JXLIU Blog

「离开世界之前一切都是过程」

21th week group meeting record

slow speed

第 21 周组会记录上周计划 PWSO 模型规范 baldur 程序，学习 baldur 文章 [C.E. SINGER et al 1988] 学习 PSC harris 算例 1. 平衡 PWSO 0D 模型 J-TEXT 上密度极限 \(n_{c}=\frac{2 D_{\perp}}{f \lambda \operatorname{Rad}[T(r)]} ...

Posted by JXLIU on May 20, 2022

Install Slurm on Gentoo OS

High Performance Computing

Gentoo slurm 安装安装 slurm 在所有节点使用 emerge 安装 sys-cluster/slurm，emerge 将自动安装 munge 并创建固定 uid, gid 的 munge, slurm 用户 1 emerge -av sys-cluster/slurm 配置测试 munged 开启所有节点 munged 服务并设置为开机启动，将管理节点 /etc...

Posted by JXLIU on May 19, 2022

14th week group meeting record

normal speed

第十四周组会记录 1. 平衡修改文章 PWSO 0D 模型由PWSO 0D 模型推出的密度极限与 Greenwald 密度极限的对比 PWSO 0D 模型推出的密度极限 \[n_{c}=\frac{2 D_{\perp}}{f \lambda \operatorname{Rad}[T(r)]} \frac{T_{t}}{I\left(T_{t}\right) a} \propt...

Posted by JXLIU on April 7, 2022

a solution to slow ssh connection

in Gentoo linux

the cause of a slow ssh connection you can use ssh -v to chech why do you have a slow ssh connection 1 ssh -v username@server If it is stucked on the step pledge: exec 1 2 3 4 debug1: channel 0:...

Posted by JXLIU on March 5, 2022

Eighth week group meeting record

normal speed

第八周 0. 上周计划 1. PSC cmake.sh 文件如下 1 2 3 4 5 6 spack load cuda@11.4.1 spack load adios2@2.7.1 spack load openmpi@4.1.2 spack load thrust@1.12.0 export ADIOS2_DIR=/data/data1/software/PSC/spack/o...

Posted by JXLIU on February 24, 2022

the use of VNC in linux

in Gentoo linux

##vnc服务端 1 2 vncserver #即可启动一个vncserver vncpasswd #为vncserver设置访问密码 Gentoo plasma OS 中，.vnc/xstartup 需要如下设置 1 2 3 4 5 6 7 8 9 10 #!/bin/sh eval "$(dbus-launch --sh-syntax --exit-with-session)" exp...

Posted by JXLIU on February 19, 2022

Add route on Linux OS

to solve conflit on net route

问题 docker 网络地址和校园网认证地址处于同一网段，现有路由表将校园网认证地址(172.18.18.60)路由到docker网络解决办法增加一条路由规则 1 ip route add 172.18.18.0/24 via 211.67.27.254

Posted by JXLIU on February 19, 2022

Checking vacuum solution of GS equation by substituting the vacuum solution to homogeneous GS equation

To check if the RR vacuum solution is right

GS operator discretization method

Posted by JXLIU on January 19, 2022

FTP server on Gentoo OS

Word

Install vsftpd on Gentoo 1 emerge -av vsftpd configurations 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 # file /etc/vsftpd.conf #connect_from_port_20=YES anonymous_enable=NO local_enable=YES #read...

Posted by JXLIU on April 10, 2020

Connecting bluetooth device on Gentoo OS

Word

Enable bluetooth on Gentoo OS 1 2 3 4 5 6 7 bluetoothctl [bluetooth]# list Controller 8C:88:2B:44:3C:18 BlueZ 5.66 [default] [bluetooth]# show 8C:88:2B:44:3C:18 [bluetooth]# power on [bluetooth]# ...

Posted by JXLIU on February 4, 2020