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.
采纳的回答
James Lebak
2012-4-19
0 个投票
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 个评论
Justin
2012-4-19
Ander Biguri
2019-2-11
Is this still true in 2019?
James Tursa
2019-2-11
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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