How to use profiler to calculate the number of matrix multiplications

1 view (last 30 days)
I have wrote the followin simple matlab program to simulate a more compex matrix multiplication I am doing.
A = randi(10,10);
B = randi(10,10);
profile on-history
c = A*B;
profile('info')
but from this all I'm getting:
FunctionTable: [0x1 struct] FunctionHistory: [2x0 double] ClockPrecision: 1.0000e-03 ClockSpeed: 3.2010e+09 Name: 'MATLAB' Overhead: 0
This doesn't seem to tell me,I'm looking for a way that'll tell me the number of additions and matrix multiplications since what I am doing is far bigger than what I have here and cannot be computed manually.

Answers (1)

the cyclist
the cyclist on 21 Oct 2015
I think you want the profile viewer instead:
A = randi(10,10);
B = randi(10,10);
profile on -history
c = A*B;
profile viewer
  2 Comments
the cyclist
the cyclist on 21 Oct 2015
Profiling is designed for functions, so I suggest the following. Create a function such as this:
function [] = answerTest()
N = 3000;
A = randi(N,N);
B = randi(N,N);
c = A*B;
end
and then profile the function:
profile on; answerTest(); profile viewer
In the profiler, if you expand the answerTest link, you should see something like the attached screenshot.
%

Sign in to comment.

Categories

Find more on Application Deployment in Help Center and File Exchange

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!