怎样设置gephi可画大规模网络图形
(1)编辑gephi.conf
文件夹:\etc\gephi.conf
默认512MB。你能够改为22GB,约22528M
#
${HOME} will be replaced by user home directory according to platform
default_userdir="${HOME}/.${APPNAME}/0.8.1/dev"
default_mac_userdir="${HOME}/Library/Application Support/${APPNAME}/0.8.1/dev"
#
options used by the launcher by default, can be overridden by explicit
# command line switches
default_options="--branding gephi -J-Xms64m -J-Xmx51222528m
-J-Dsun.java2d.noddraw=true -J-Dsun.awt.noerasebackground=true -J-Dnetbeans.indexing.noFileRefresh=true"
# for development purposes you may wish to append: -J-Dnetbeans.logger.console=true -J-ea
#
default location of JDK/JRE, can be overridden by using --jdkhome <dir> switch
#jdkhome="/path/to/jdk"
#
clusters' paths separated by path.separator (semicolon on Windows, colon on Unices)
#extra_clusters=
(2)报错:JVM CREATION FAILED
系统可用内存不足。
2G内存,32位java虚拟机这个值最大仅仅能增大到814,否则报错“JVM
Creation failed”,gephi无法启动。官方说2G内存能够设置到1300m的,另外,官方说要大于1.5G memory要使用64为版本号的java虚拟机。因此,眼下这个问题还有待进一步研究。
(3)获取OpenOrd插件
这个插件可控制超过100万节点的网络图。论文见:
OpenOrd:
an open-source toolbox for large graph layout
(4)并行计算
OpenOrd实现了并行计算。每一个线程都可对一系列数据进行操作。线程个数比核数少一,比方四核,则最多执行三个线程。