sentaurus是否能用多个CPU跑同一个程序

九章伏藏gyx · 发表于 2016-7-3 10:12:55

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最近在用sentaurus跑一个动态的仿真，但是速度很慢，跑一整个礼拜也不见结果，一直处在运算中（因为不收敛？？？？？）所以想能不能用多个CPU来跑加快一下进度，求大神知道，如果可改，具体的操作又是如何谢谢

m8406054 · 发表于 2016-7-5 05:37:20

應該有DP mode 可使用，但需license

micm_nedi · 发表于 2016-8-28 15:37:25

回复 1# 九章伏藏gyx

我也是，一个程序要跑几天也跑不完。九章童鞋有没有找到解决方法啊，现在电脑一般都是16个CPU，但是怎么才能让sentaurus都用上呢？

霜霜侠 · 发表于 2016-8-28 16:38:44

看UG
有个设置多线程的命令

miskatonic · 发表于 2017-1-13 10:30:43

Sorry for English reply. Hope this helps!

Problem: sdevice only use 1 CPU.
Solution: 2 steps to fix the problem!
1. I use the ParDiSo (direct solver) because I know it can use all CPU. I have not tried SUPER or ILS solvers, so I do not know if they work the same way. To force sdevice to use ParDiSo, put these lines in Math{} section of your sdevice command file:
Math{
Method = Blocked
SubMethod = ParDiSo
}

2. Add these environment variables to your ./.bashrc (shell startup) script:
SDEVICE_NUMBER_OF_SOLVER_THREADS=maximum
export SDEVICE_NUMBER_OF_SOLVER_THREADS

SDEVICE_NUMBER_OF_THREADS=maximum
export SDEVICE_NUMBER_OF_THREADS

SNPS_NUMBER_OF_THREADS=maximum
export SNPS_NUMBER_OF_THREADS

You can use an integer value (1,2,3,...) instead of 'maximum' if you do not want all CPU assigned to sdevice. When I start swb from a terminal window, sde and snmesh still run on 1 CPU, but when sdevice starts, it uses all 8 CPU on my system.