matlab程序最大cpu利用率,Matlab纯CPU性能测试

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%%%%%%%%%%%%% Matlab纯CPU基准性能测试1.0----2020.08.13 %%%%%%%%%%%%%%%%%%%

clc

% 测试1： 大型矩阵计算

clear

disp('测试1： 大型矩阵计算');

a = rand(10000);

b = rand(10000);

tic, c = a * b; toc

tic, d = sin(a); toc

tic, d = fft(d); toc

% 测试2：小型矩阵多次计算

clear

disp('测试2：小型矩阵多次计算');

tic,

for iii=1:50000

a = rand(100);

b = rand(100);

c = sin(a) .* cos(b);

end

toc

%测试3：中型矩阵多次计算

clear

disp('测试3：中型矩阵多次计算');

tic,

for iii=1:16

a = rand(5000);

b = rand(5000);

c = sin(a) .* cos(b);

end

toc

%测试4：小型复矩阵计算

clear

disp('测试4：小型复矩阵计算');

num=64;

num2=100;

num3=30;

A1=rand(num,num,256)+1i*rand(num,num,256);

A2=rand(num,num)+1i*rand(num,num);

A3=rand(num2,256)+1i*rand(num2,256);

A4=zeros(num2,1);

time=0;

for kkk=1:num3

t=tic();

for i=1:num2

A5=sum(reshape(A3(i,:),1,1,256).*A1,3);

A6 = abs(A2-A5);

A4(i) = sum(sum(A6))/10000;

end

atime=toc(t);

time=time+atime;

end

disp(['平均时间', num2str(time/num3) ]);