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你好,我使用一个32M Ram的分析器逻辑。这个分析器通过vee连接(vee pro6)当我使用Active X“getData”时,我有一个32M pts的数组。(好)但是如果我尝试过滤这个数组
(例如:使用DLL只保留每个奇数值)我有错误代码910 =>内存不足.... vee支持的最大数组大小是什么?注意:pC ram是2GHave你有想法使用vee 数组> 16M pts?谢谢 以上来自于谷歌翻译 以下为原文 Hello, I use an Analyser logic with 32M Ram. This analyser is connected by vee (vee pro6) When i use the Active X "getData", i have an array of 32M pts.(good) But if I try to filtered this array (ex: use a DLL to keep only each odd value) I have the error code 910=> Out of memory.... The max array size supported by vee Is ? note: the pC ram is 2G Have you an idea to use vee with an array >16M pts? Thanks |
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Gilles,在处理大量数据时,还有其他一些考虑因素,不仅是VEE,还有任何编程语言。
例如,尽管PC中可能有大量内存,但并非所有内存都可供您的程序使用(并且不希望发起'OS战争'争论,Windows需要相当多的时间来运行自己)。我有 处理了一些非常大量的数据,因为我记得每天大约15 GiB,监控,过滤和实时流式传输到磁盘,我使用Matlab抽取,过滤功能等 - 所以它不是一个功能 问题,但有一些事情要考虑。据我所知(并且还有其他讨论,你可能想审查)每次数据从一个对象传递到下一个VEE复制(以便你 可以通过悬停在线上来查看它 - 通常这当然不是问题。 解决这个问题的方法是将数组声明为变量并使用该变量对其进行操作,而不是将数据从对象传递到对象。其他不太明显的方法是批判性地分析您的需求以及是否真的需要32 M (x数据宽度)在一个块中。 例如,逻辑分析仪可以提供直接测量并设置为处理数据; 你可以用较少量的数据来分治并处理这些块.HTH 以上来自于谷歌翻译 以下为原文 Gilles, When dealing with large amounts of data there are some other considerations that come into play, not only with VEE but any programming language. For example although you may have an enormous amount of memory in the PC not all of it will be available to your program ( and without wishing to initiate an 'OS wars' debate , Windows takes a fair amount just to run itself ). I have dealt with some very large amounts of data, as I recall something > 15 GiB per day, every day, monitored, filtered and streamed to disk real-time for which I used Matlab decimate, filter functions and the like - so it's not a capability problem but there are some things to think about. As far as I'm aware ( and there have been other discussions on this you might like to review ) everytime data is passed from one object to the next VEE makes a copy ( so that you can review it later by hovering over the lines ) - generally this is not a problem of course. A way around this is to declare your array as a variable and manipulate it using that variable rather than passing the data from object to object. Other not-so-obvious ways around this are to critcally analyse your requirements and whether you really need 32 M ( x data width ) in one block. For instance the logic analyser may well offer a direct measurement and is set up to deal with the data; you may be able to divide-and-conquer reading in smaller amounts of data and processing the blocks. HTH |
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第一手经验 - 当填充尺寸为400 x 80k的real64二维阵列时,VEE将会死亡+尝试将其保持在~32M浮点数下
以上来自于谷歌翻译 以下为原文 First hand experience - VEE will die when filling a real64 2 dimensional array of size 400 x 80k+ try to keep it under ~32M floating point numbers |
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