comsol 有没有节约内存的好方法？

mysu

最近用comsol 总是内存溢出。减少网格数量也不怎么起作用。怎么办呢？

xueer534

模块没选对或者电脑配置不够

mikefallon

内存很多时候不是节约就能够用的，很多时候需要升级电脑。
先分析一下自己内存大小，模型网格数、自由度，然后参考中仿社区关于电脑配置的帖子“我需要一台什么样的电脑运行我的COMSOL Multiphysics”，看一下电脑配置是否合适。个人建议比那个帖子说的配置再稍高一点儿，以免运行起来太慢。

hwy017789

if you use The adaptive solver
The adaptive solver ran out of memory. The adaptive mesh refinement has generated a too fine mesh. In general, when you run out of memory, try to use memory-efficient modeling techniques such as utilizing symmetries, solving models sequentially, and selecting memory-efficient solvers.

hwy017789

Storing Solutions on File
By default, COMSOL Multiphysics stores the solution in memory. If you select the Store solution on file check box, the solution is primarily stored in a file. This option is useful if you do a time-dependent or parametric simulation with a large number of time steps or parameter steps. The large amount of solution data would otherwise fill up the computer’s memory. The software deletes the file that it creates when the solution is no longer needed (for instance, when you exit COMSOL Multiphysics). This file is located in the default directory for temporary files provided by the operating system. You can override this location with an option when starting COMSOL Multiphysics

Blair1987

看看模型能否简化：1，对称的可以取对半或者1/4，2，3D的是否可以简化为2D。

songye9527

更改求解器的算法即可

ok21021

同样的问题。