Thanks for the report.

On Wed, Jul 22, 2009 at 04:28, snorrsi<[email protected]> wrote:
>
> I had previously compiled Ocropus from the Mercurial repository with
> multithreading working but now when I tried to compile the newest
> version the multithreading support for training has gone away.
>
> I am trying to run the script
>
> ocropus trainseg my.model lines
>
>
> Is this related to the disabling of OpenMP in the new version ?
> See Revision: ba9ff20a70
>
> Previous version from around 10. june:
> ocropus Revision: 2e552379084f
> iulib Revision: 8015520179e9

Yes; although OpenMP mostly works, OpenMP makes debugging and bug
reporting harder.

> I also noticed that compiling Ocropus and Iulib with -O2 disabled the
> multithreading.

Yes, OpenMP use is enabled by compiling with -O3

> However if I try to compile the new version with -O3 I get this error.
>
> g++ -o ocr-utils/bookstore.o -c -DDATADIR='"/usr/local/share/ocropus"'
> -g -fPIC -O3 -Wall -Wno-sign-compare -Wno-write-strings -
> D__warn_unused_result__=__far__ -D_BACKWARD_BACKWARD_WARNING_H=1 -
> fopenmp -DHAVE_LEPTONICA -I/usr/local/include -I/tmp/o/include -I/usr/
> local/include -I/usr/include/leptonica -I/usr/local/include/leptonica -
> I/usr/local/include/leptonica -Iinclude -Iocr-utils ocr-utils/
> bookstore.cc
> ocr-utils/bookstore.cc: In member function 'virtual int
> ocropus::OldBookStore::get_max_page(const char*)':
> ocr-utils/bookstore.cc:34: error: invalid exit from OpenMP structured
> block

I have removed the pragmas again... they weren't actually needed (yet)
and only protected against accidental invocation from within a
multithreaded context.

If you compile with -O3, multithreaded training should work again.

Tom

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