相关疑难解决方法(0)

在这篇文章之后,我决定将Julia与GNU Octave进行比较,结果与julialang.org中的加速结果不一致.

我编译了Julia和GNU Octave CXXFLAGS='-std=c++11 -O3',结果我得到了:

GNU Octave

a=0.9999;

tic;y=a.^(1:10000);toc
Elapsed time is 0.000159025 seconds.

tic;y=a.^(1:10000);toc
Elapsed time is 0.000162125 seconds.

tic;y=a.^(1:10000);toc
Elapsed time is 0.000159979 seconds.

-

tic;y=cumprod(ones(1,10000)*a);toc
Elapsed time is 0.000280142 seconds.

tic;y=cumprod(ones(1,10000)*a);toc
Elapsed time is 0.000280142 seconds.

tic;y=cumprod(ones(1,10000)*a);toc
Elapsed time is 0.000277996 seconds.

朱莉娅

tic();y=a.^(1:10000);toc()
elapsed time: 0.003486508 seconds

tic();y=a.^(1:10000);toc()
elapsed time: 0.003909662 seconds

tic();y=a.^(1:10000);toc()
elapsed time: 0.003465313 seconds

-

tic();y=cumprod(ones(1,10000)*a);toc()
elapsed time: 0.001692931 seconds

tic();y=cumprod(ones(1,10000)*a);toc()
elapsed time: 0.001690245 seconds

tic();y=cumprod(ones(1,10000)*a);toc()
elapsed …