Using LIBSVM with OpenMP under Octave

[cjlin1]

Using LIBSVM with OpenMP under Octave

[cjlin1]

We have improved the description in libsvm faq. Please check

Thanks,
Chih-Jen

Konstantinos Vantas writes:

Hello,
I don't have enough development experience on Linux, forgive me if I ask
something obvious.

1. I added the -fopenmp to CFLAGS and -lgomp to MEX_OPTION at /matlab/Makefile
2. I added to /Makefile -fopenmp to CFLAGS
3. In svm.cpp I added: 3.1 "#pragma omp parallel for private(j)" above the line
   "for(j=start;jl;i++)" (2511 line) 3.3 #pragma omp parallel for private(i)"
   above the line "for(i=0;i<l;i++)" (2528 line)
4. I run under octave the make command

Then when I am using the svmtrain under Octave I get the error: /home/Octave/
libsvm_mp/matlab/svmtrain.mex: failed to load: /home/Octave/libsvm_mp/matlab/
svmtrain.mex: undefined symbol: omp_get_thread_num

What am I doing wrong here?

(Ubuntu 14.04, Octace 3.8.1, gcc 4.9, libsvm 3.20 )

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[mricherzhagen]

Kind of offtopic, but since you mention the FAQ:

Not Found

The requested URL /~cjlin/libsvm was not found on this server.

When trying to access http://www.csie.ntu.edu.tw/~cjlin/libsvm/
Did the FAQ and webpage move?

EDIT: its back online

[kvantas]

Thanks!
Konstantinos

[cjlin1]

I can access it.. Don't know what happened to you?

Matthias Richerzhagen writes:

Kind of offtopic, but since you mention the FAQ:

Not Found

The requested URL /~cjlin/libsvm was not found on this server.

When trying to access http://www.csie.ntu.edu.tw/~cjlin/libsvm/
Did the FAQ and webpage move?

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Reply to this email directly or view it on GitHub.*