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

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.

[Fangjun Jiang]

what is "a N mex functions"?

[Francisco Garrido]

I meant N mex functions, as in an unspecified number, the "a" slipped in there. Edited.

[Fangjun Jiang]

You mean the function has been compiled by running "mex"?

[Francisco Garrido]

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]

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.