Changing Makefile to ensure MEX points to matlab mex binary

This isn't really a MATLAB question, it's a question for the author of the package you're trying to use. The location of the 'mex executable' is the "bin" directory of your MATLAB installation. But what is going on here is that you need to understand more about the software you are trying to use in order to replicate the results.

Try contacting the author, reading the MatConvNet documentation, and reading the MATLAB documentation on MEX. Once you are more familiar with all the tools involved, you may have some more pertinent and specific MATLAB questions that you can bring back to this forum.

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Answer 1

Walter Roberson 2016-11-18

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/312739-changing-makefile-to-ensure-mex-points-to-matlab-mex-binary#answer_243879

在 MATLAB Online 中打开

The mex script location is

fullfile(matlabroot, 'bin', 'mex')

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Naseer Khan 2016-11-19

在 MATLAB Online 中打开

I am getting now following error after updating the path

naseerkhan@dfki-seecs:~/MS/textspotting/jaderberg-textspot/matconvnet/matlab/mex$ cd ..
naseerkhan@dfki-seecs:~/MS/textspotting/jaderberg-textspot/matconvnet/matlab$ cd \
> ^C
naseerkhan@dfki-seecs:~/MS/textspotting/jaderberg-textspot/matconvnet/matlab$ d /
d: command not found
naseerkhan@dfki-seecs:~/MS/textspotting/jaderberg-textspot/matconvnet/matlab$ cd ..
naseerkhan@dfki-seecs:~/MS/textspotting/jaderberg-textspot/matconvnet$ cd ..
naseerkhan@dfki-seecs:~/MS/textspotting/jaderberg-textspot$ ls
data  fig_charmap.m  fig_detmap.m  imshowc.m  LICENSE  load_nostruct.m  matconvnet  models  README.md  reproduce_classifier_results.m
naseerkhan@dfki-seecs:~/MS/textspotting/jaderberg-textspot$ clear
naseerkhan@dfki-seecs:~/MS/textspotting/jaderberg-textspot$ ls
data  fig_charmap.m  fig_detmap.m  imshowc.m  LICENSE  load_nostruct.m  matconvnet  models  README.md  reproduce_classifier_results.m
naseerkhan@dfki-seecs:~/MS/textspotting/jaderberg-textspot$ cd matconvnet/ && make
/usr/local/MATLAB/R2016a/bin/mex -c -lmwblas -largeArrayDims "matlab/src/bits/im2col.cpp"
Building with 'g++'.
Warning: You are using gcc version '4.9.3'. The version of gcc is not supported. The version currently supported with MEX is '4.7.x'. For a list of currently supported compilers see: http://www.mathworks.com/support/compilers/current_release.
MEX completed successfully.
mv -f "im2col.o" "matlab/src/bits/im2col.o"
/usr/local/MATLAB/R2016a/bin/mex -c -lmwblas -largeArrayDims "matlab/src/bits/pooling.cpp"
Building with 'g++'.
Warning: You are using gcc version '4.9.3'. The version of gcc is not supported. The version currently supported with MEX is '4.7.x'. For a list of currently supported compilers see: http://www.mathworks.com/support/compilers/current_release.
MEX completed successfully.
mv -f "pooling.o" "matlab/src/bits/pooling.o"
/usr/local/MATLAB/R2016a/bin/mex -c -lmwblas -largeArrayDims "matlab/src/bits/normalize.cpp"
Building with 'g++'.
Warning: You are using gcc version '4.9.3'. The version of gcc is not supported. The version currently supported with MEX is '4.7.x'. For a list of currently supported compilers see: http://www.mathworks.com/support/compilers/current_release.
MEX completed successfully.
mv -f "normalize.o" "matlab/src/bits/normalize.o"
echo "#include \"../src/gconv.cu\"" > "matlab/mex/gconv.cpp"
/usr/local/MATLAB/R2016a/bin/mex -lmwblas -largeArrayDims \
"matlab/mex/gconv.cpp" matlab/src/bits/im2col.o matlab/src/bits/pooling.o matlab/src/bits/normalize.o \
-o "matlab/mex/gconv.mexa64" \
2> >(sed 's/^\(.*\)(\([0-9][0-9]*\)): \([ew].*\)/\1:\2: \3/g' >&2)
Unknown MEX argument '-o'.
Makefile:71: recipe for target 'matlab/mex/gconv.mexa64' failed
make: *** [matlab/mex/gconv.mexa64] Error 255
rm matlab/src/bits/im2col.o matlab/src/bits/normalize.o matlab/src/bits/pooling.o
naseerkhan@dfki-seecs:~/MS/textspotting/jaderberg-textspot/matconvnet$

Walter Roberson 2016-11-20

在 MATLAB Online 中打开

        -output <resultname>
            Create mex-file named <resultname>. The appropriate mex-file
            extension is automatically appended. Overrides mex's default
            mex-file naming mechanism.

So try changing the -o "matlab/mex/gconv.mexa64" to -output "matlab/mex/gconv"

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