City Cluster Quickstart Lien-Chi Lai, COLA Lab, Department of Mathematics, NTU 2010/05/11

To Login “City Cluster” City Cluster Quickstart2  On Mac: Launch “ 終端機 ”  $ ssh  $ ssh –X (to enable X11 forwarding)

To Transfer Files City Cluster Quickstart3  $ sftp  download files:  get filename  mget foo*.c  upload files:  put foo1  mput foo*.c  scp secure remote file copy program  $ scp

SSH Secure Shell (on Windows) : to Login City Cluster Quickstart4  Download and install “SSH Secure Shell”

SSH Secure Shell: to transfer files City Cluster Quickstart5

SSH Secure Shell: to transfer files City Cluster Quickstart6

Basic Linux Commands City Cluster Quickstart7  pwd print current working directory  man on-line reference manuals  e.g. $ man pwd  mkdir make directories  e.g. $ mkdir dir_name  ls list directory contents  e.g. $ ls or ls dir_name/  cd change directory  e.g. $ cd dir_name/  rm remove files or directories  e.g. $ rm -r dir_name/  cp copy files and directories  e.g. $ cp file_scr file_dst

MATLAB City Cluster Quickstart8  Graphic User Interface (GUI)  $ ssh -X  $ matlab  No GUI  ssh  $ matlab -nojvm

Editors City Cluster Quickstart9  vi a programmers text editor  $ vi filename  emacs a programmers text editor  $ emacs filename  gedit simple text editor for GNOME  $ gedit or gedit filename

GCC City Cluster Quickstart10  gcc C and C++ compiler  e.g. $ gcc hello.c -o hello (compile test.c) $./hello (execute hello) // C programming for Hello World #include int main(){ printf(“Hello World!!\n”); return 0; }

FORTRAN City Cluster Quickstart11  Edit “hello.f90”  Compile:  $ ifort hello.f90  Run  $./a.out Program Hello implicit none write (*,*) ‘Hello, World.’ end

Virtual Network Computing (VNC) City Cluster Quickstart12  VNC 可將遠端平台的畫面顯示至本地端，並可遙控操作。  遠端與本地端的平台作業系統無須相同， Linux, Windows,… 等皆可。  參考網址：   

VNC City Cluster Quickstart13  On server side (e.g. city.math.ntu.edu.tw)  vncserver :2 launch VNC server with port 5802  vncpasswd change VNC password  vncserver -kill :2 close VNC server at port 5802  On local side  Go to  Use VNC Viewer to connect city.math.ntu.edu.tw:5802

Reference City Cluster Quickstart14 