HPL 相關

How to calculate peak theoretical performance of a CPU-based HPC system

FLOPS per cycle for sandy-bridge and haswell SSE2/AVX/AVX2

System Performance and Ranking Estimation

http://hpl-calculator.sourceforge.net/HPL-HowTo.pdf

Linux TOP 指令說明

Linux TOP 指令說明

VIRT  程序使用的虛擬記憶體總量，單位 kb。VIRT=SWAP+RES

RES    程序使用的、未交換出的實體記憶體大小，單位 kb。RES=CODE+DATA

SHR    共享記憶體大小，單位 kb

reference

http://blog.ycnets.com/2013/09/01/linux-commandtop/

GnuPlot references

地圖/統計圖/3d 函數圖/實驗報告圖 -- Gnuplot 純畫圖 (作者: 洪朝貴老師)
http://user.frdm.info/ckhung/b/ma/gnuplot.php

Gnuplot 入門教學
http://randle.wordpress.com/2007/06/12/gnuplot-induction/

Upgrade to CentOS 6.5 from CentOS 6.4

yum clean all
yum update glibc* yum* rpm* python*
yum update

reboot

cat /etc/redhat-release
## Output ##
CentOS release 6.5 (Final)

lsb_release -a
## Output ##
LSB Version:    :base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch
Distributor ID: CentOS
Description:    CentOS release 6.5 (Final)
Release:        6.5
Codename:       Final


references:
http://www.if-not-true-then-false.com/2011/upgrade-centos-6/

GDB: Missing separate debuginfos

Fixed GDB: Missing separate debuginfos

1. 修改 /etc/yum.repos.d/CentOS-Debuginfo.repo, set enabled=1
2. yum install yum-utils
3. debuginfo-install glibc

如果還是不行更新 gdb and glibc

yum install gdb* glibc*

參考:

http://stackoverflow.com/questions/10389988/missing-separate-debuginfos-use-debuginfo-install-glibc-2-12-1-47-el6-2-9-i686