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HFSS内存不足的问题

05-08
今天算了个算例,结果到adaptive past 9的时候,出错了,显示“adaptive solution, process solver: insufficient memory”,应该是内存不足。网上查了一下,原因大体上有两种:
1、内存太小。但是在计算的过程中,通过任务管理器看到,hfss只用了越630m的内存,系统还有500+的内存剩余,而且还有2G的虚拟内存呢,这是怎么回事?
2。还有就是可能网格太密。我是让系统自适应划分的,请问这种情况下能看当前划分了多少网格吗?
另外,想再问问,计算的时候,Discrete Sweep,Fast Sweep,Interpolating Sweep哪个计算量小?还有,tools-options-hfss options里的内存大小值有什么作用?

谢谢!

hfss出现out of memory,怎么办

hfss出现out of memory,怎么办

在solution的profile里可以看到你的工程的内存使用情况,一般第一种情况最普遍,应该是你的模型网格剖分导致内存不够,HFSS比较吃内存。新的12.1版本会好一点。
三种扫描方式,第三种内存使用少一点,但是三个都差不多,
tool里的是设置软件调用系统内存大小的值,一般不需要设置。

HFSS 狂耗内存, 最好买一个内存大的机子

谢谢二位,呵呵。另外我看到一个帖子如下:
So you drew the structure that you want to simulate, but which sweep should you use? As seen in Fig. 1, HFSS has three types of sweeps; discrete, fast, and interpolating. Depending on your frequency bandwidth and processing power (i.e. how long you are willing to wait for simulation completion), the most appropriate sweep can be chosen.

Discrete Sweep

The discrete sweep is the most accurate since it resolves the problem at each frequency point in your frequency bandwidth. However, it is the slowest and the adaptive frequency should be set at the higher limit of your bandwidth or at the frequency where the wavelength is smallest.
Fast Sweep

The fast sweep requires less simulation time than the discrete sweep but at the expense of a limited frequency bandwidth range and reduced accuracy. The adaptive frequency should be set within the center of your frequency bandwidth and should coincide within the pass-band of your structure. Typically, the bandwidth is should be 6~8 GHz; if your adaptive frequency is 5 GHz, your frequency sweep can go from 1 GHz to 9 GHz.
Interpolating Sweep

The interpolating sweep is the fastest, but the least accurate sweep. In addition, the field data cannot be saved for the frequency range and therefore has limited post processing attributes. The frequency bandwidth can be wideband, but the adaptive frequency has to be set high. The interpolating sweep basically does a curve fit and should be used for non-resonant structures.

从上面来看,速度上是Discrete Sweep<fast sweep < Interpolating Sweep啊,当然,准确度刚好相反。另外,说Interpolating sweep通常计算带宽非常大的情况,不知道这个带宽非常大有没有个大约值。

另外,选择3种sweep时,solution frequency分别应该怎么选取?

我升级到12.1了,但新的问题出现了,总是算着算着就不动了,cpu显示100%,就是进度条不前进,通常是solving matrix of part 1 of 2,不知道为什么。我用不同的电脑(都是12.1的版本,同一个包装的),停止的地方还不一样。但我算另外几个简单的模型是可以计算成功的,也还算快

solution frequency一般都是选择中心频率吧 ,你都用上12.1了啊 我先前下载的一个12版本计算不准,现在还在用11,请问你的是正版还是在哪儿下载的啊?

似乎fast sweep的话一般是中心频率。我也是下了个盗版的,总是停止计算。但我装了几次11,老出错,10又算的太慢,唉

12.1pJ是不大稳定,老是出错,但是HFSS-IE是个亮点。

终于还是回到11.1.1了,这次虽然提醒了软件和win7的兼容性问题,但是居然安装成功了。可以算了,比10快不少

HFSS在哪里可以下载到呢?

握手………我也是经常在solving matrix 1 of 2时就卡住不动了,有时候改改参数又能过,但大多数情况是通不过,很痛苦啊,毫无头绪

看来还是用11的好啊!

现在较好的版本是hfss13.02.稳定,计算准确。

各位大神,运行HFSS大概需要多大的内存,对CPU要求怎样?

hfss出现out of memory,怎么办

hfss出现out of memory,怎么办

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