mex - Cannot map zero-fill pages: Cannot allocate memory.

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Francisco Garrido 2019-9-12

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https://ww2.mathworks.cn/matlabcentral/answers/480088-mex-cannot-map-zero-fill-pages-cannot-allocate-memory

评论： Fangjun Jiang 2019-9-12

I am calling N mex functions from matlab multiple times. Each mex function load, the firs time it's called a large csv file (half a gig), and generates two other similarly arrays. When doing this, matlab complains that "cannot map zero-fill pages: Cannot allocate memory."

Clearly this is a memory issue, but I don't know how to get around it.

Any suggestions are welcome.

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Francisco Garrido 2019-9-12

The functions have been compiled, and are working as expected when I load small datasets. When I load a large ones they crash giving the aforementioned error:

"cannot map zero-fill pages: Cannot allocate memory."

Fangjun Jiang 2019-9-12

It could be a ligit "out of memory" error if it only happens on larget data set. You could try to run it on source code (not the compiled mex-file) to pinpoint the problem and locate the source.

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