Faster way to read a data file using armadilo in C++

问题

Hi I just recently discovered the armadillo library for C++ and I quite like it. I am building an application after prototyping it in MATLAB so that I can execute it much faster. The problem I am facing is that when I try to load a matrix from a .mat file as follows:

A.load("A.mat",raw_ascii); 
//raw_ascii because I can port data to MATLAB as well. 

it takes about 10 seconds. I was wondering if there was a faster way of doing it in armadillo or C++ in general.

Any thoughts are much appreciated, thanks.

edit 1 - the file I am trying to read is about 35MB.

回答1:

hdf5_binary should work faster. Matlab supports this format

来源：https://stackoverflow.com/questions/15581131/faster-way-to-read-a-data-file-using-armadilo-in-c