调用用户定义函数时传输的数据 [英] data transferred in calling a user defined function

问题描述

我需要分析一个大的源代码.代码包含几个函数调用. 根据函数调用之间的计算和通信，我将需要为整体执行源代码找出最佳的配置方案.

I need to analyze a big source code.Code contains several function calls. Depending upon the computation and communication between function calls, i will need to figure out the best configuration scheme for the overall execution of the source code.

据我说，

在调用函数时通信的数据(如果它在不同的机器，服务器等上)=输入数据大小+输出数据大小

Data communicated in calling a function(if it is on different machine,server etc)=Input Data Size+Output Data Size

为了获得输入数据大小和输出数据大小，我认为我应该重写所有函数以具有可变数量的输入和可变输出.

for getting the input data size and output data size ,i think i should rewrite all functions to have variable number of inputs and variables outputs.

[varargout] samplefunction(varargin) {

FOR i=0:nargin
 inputdata=inputdata+sizeof(varargin(i));



% Do stuff here


}

没有一种方法可以直接在Matlab中计算单元格数组的大小(varargin/varargout)吗?

isn't there a way to calculate size of cell array(varargin/varargout) directly in Matlab ?

或者您是否可以建议另一种方法来测量函数调用之间的通信数据?

or if u can suggest another approach to measure communicated data between function call ?

推荐答案

对 cellfun()使用字符串输入会非常快:

A call to cellfun() with string inputs would be very fast:

sizes = [cellfun('size',varargin,1); cellfun('size',varargin,2)];

或

lenghts = cellfun('length',varargin);

或

numels  = cellfun('prodofsize',varargin);

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