Allocate page locked memory for output array in mex?

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Hello,
I have something like this:
plhs[0] = mxCreateDoubleMatrix(ref_row, ref_col, mxREAL);
I would like to know if it's possible to replace this function with a cudaHostAlloc function instead. Thanks.

Accepted Answer

James Lebak
James Lebak on 19 Apr 2012
Justin,
Unfortunately this isn't possible in MATLAB today. The function mxCreateDoubleMatrix returns an mxArray, not a raw pointer, and mxArrays that get returned to MATLAB need to be freed by MATLAB.
  3 Comments
James Tursa
James Tursa on 11 Feb 2019
MATLAB still needs to allocate its own memory for mxArray variables. Within a mex routine, that means using API functions or call backs into other MATLAB functions.

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