Hi Philip,
yes, that's right. You will need to recompile on a Linux box (64 Bit, since I hope you run on AWS 64 Bit as well). In your parfor loop you don't need to "indicate": since you just write the name of the function without the extension (suppose your mex file is foo.mexw64, then you write foo(...)), MATLAB will always look out for the mex file with the "correct" extension, i.e. foo.lgnx64).
Titus
