安裝 wxPython

[dag]
name=Dag RPM Repository for Red Hat Enterprise Linux
baseurl=http://apt.sw.be/redhat/el$releasever/en/$basearch/dag
gpgcheck=1
enabled=1


yum install wxPython.x86_64 wxPython-devel.x86_64

Dependencies Resolved

==================================================================================================================================================
 Package                                Arch                           Version                                  Repository                   Size
==================================================================================================================================================
Installing:
 wxPython                               x86_64                         2.8.9.1-1.el5.rf                         dag                          22 M
 wxPython-devel                         x86_64                         2.8.9.1-1.el5.rf                         dag                         479 k
Installing for dependencies:
 wxGTK                                  x86_64                         2.8.10-1.el5.rf                          dag                          27 M
 wxGTK-devel                            x86_64                         2.8.10-1.el5.rf                          dag                         1.1 M

Identify the speed of memory

dmidecode  is a tool for dumping a computer’s DMI (some say SMBIOS) table contents in a human-readable format.


dmidecode

# dmidecode 2.11
SMBIOS 2.5 present.
30 structures occupying 1372 bytes.
Table at 0x0009D800.

vm.swappiness

vm.swappiness is a tunable kernel parameter that controls how much the kernel favors swap over RAM. At the source code level, it’s also defined as the tendency to steal mapped memory. A high swappiness value means that the kernel will be more apt to unmap mapped pages. A low swappiness value means the opposite, the kernel will be less apt to unmap mapped pages. In other words, the higher the vm.swappiness value, the more the system will swap.

The default value I’ve seen on both enterprise level Red Hat and SLES servers is 60.

step of modify:

sysctl -w vm.swappiness=0 (default: 60)

swapoff -a

swapon -a

ADD  vm.swappiness=0  to  /etc/sysctl.conf

References:
What Is the Linux Kernel Parameter vm.swappiness?
http://overinfinityresearch.blogspot.com/2008/09/ubuntu804.html

英文日期寫法

a) 23 April 1616
b) 23rd April, 1616                            
c) April 23, 1616
d) April 23rd 1616


1)   [西元1616年4月23日]在英式傳統的寫法是[ 23rd April, 1616 ]。
2)   [西元1616年4月23日]在美式傳統的寫法是[ April 23, 1616 ]。
3)   現代的寫法a), b), c), d)都可以，中間有無[ , ]都可以，但是絕對不能先寫西元。



資料來源

Usage of nvidia-smi

## show GPU short messages
nvidia-smi -L

## Display GPU detail info
nvidia-smi -q

## Disable GPU ECC memory
nvidia-smi --ecc-config=0
Reboot required.

## Set MODE for compute applications
##  0/DEFAULT
##  1/EXCLUSIVE_THREAD
##  2/PROHIBITED
##  3/EXCLUSIVE_PROCESS
nvidia-smi --compute-mode=3