Check gpuArray double or single?

9 次查看（过去 30 天）

covariant_cat 2017-11-27

1
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/369535-check-gpuarray-double-or-single

评论： Steven Lord 2017-11-27

I'm pretty sure a gpuArray has a type (e.g., single or double). But i'm not sure how to check it. The function isa does not work for gpuArray.

A = gpuArray(single(1));
B = gpuArray(double(1));
isa(B,'double')
isa(B,'single')

You get both 0s.

Ref: https://www.mathworks.com/help/matlab/ref/isa.html

Thanks!

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

Steven Lord 2017-11-27

2
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/369535-check-gpuarray-double-or-single#answer_293399

The isa function works fine, but it answers a different question than you want to be answered. Instead, ask your question using the classUnderlying function.

2 个评论
显示无隐藏无

Joss Knight 2017-11-27

isaUnderlying is the direct analogue.

Steven Lord 2017-11-27

Right, classUnderlying came to my mind first and I forgot to check for a function that is to isa like classUnderlying is to class. Use isaUnderlying as Joss suggested.

请先登录，再进行评论。

请先登录，再回答此问题。