Legacy ImageMagick Discussions Archive

I am running Mountin Lion OSX 10.8.2 and I am using ImageMagick for manipulating large image files (microscopy images, 30.000*30.000 pixels).

I installed ImageMagick using MacPorts using the following command, no errors occurred:

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$ sudo port install ImageMagick

When I run my image manipulation scripts, only one core is used. Checking for multicore support gives:

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$ identify -version
Version: ImageMagick 6.7.9-0 2012-09-21 Q16 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2012 ImageMagick Studio LLC
Features:  OpenCL

No OpenMP (multi core support) is installed.

My hardware should be fine for multicore image processing:

Model Name: Mac mini
Model Identifier: Macmini5,3
Processor Name: Intel Core i7
Processor Speed: 2 GHz
Number of Processors: 1
Total Number of Cores: 4
L2 Cache (per Core): 256 KB
L3 Cache: 6 MB
Memory: 16 GB
Solid state disk: 256 GB

For my analysis I think using multiple cores is essential. I would prefer using OSX as al my other software is on there. Is it possible to stay on OSX and use multiple cores within ImageMagick? Can I build and compile ImageMagic from scratch for OSX, and if so, how? Or do I need to use Linux and go from there?

I would like to know your experts opinion.
Thanks in advance.

Can I build and compile ImageMagic from scratch for OSX, and if so, how? Or do I need to use Linux and go from there?

There may be a way to recompile from MacPorts enabling OpenMP, but I do not know enough about that. Search the archives. I think there was a response to a similar question, though it may have been going the other way.

I am on Mac OSX Snow Leopard. I installed all my delegates from MacPorts and then I install IM from source and link to the delegates in /opt from MacPorts. That way I can recompile whenever there is a new release.

Here is my ./configure command:

./configure CPPFLAGS='-I/opt/local/include' LDFLAGS='-L/opt/local/lib' \
--enable-delegate-build --enable-shared --disable-static --disable-opencl \
--with-modules --with-quantum-depth=16 --with-gslib --without-wmf \
--disable-silent-rules --disable-dependency-tracking --disable-openmp --without-pango \
--with-gs-font-dir=/opt/local/share/ghostscript/fonts/ --with-lqr

The key is the commands in blue. See
http://www.imagemagick.org/download/www ... .html#unix
http://www.imagemagick.org/script/advan ... lation.php

Note that I have disabled OpenMP, OpenCL and Pango as I am testing some of my scripts and do not want any problems from those components. You should remove them and anything else that is not relevant and/or use the correct command to enable them, e.g. --enable ... or --with ...

Hope that helps

Hi,

I configure succesfully using your suggested command:

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./configure CPPFLAGS='-I/opt/local/include' LDFLAGS='-L/opt/local/lib' \
--enable-delegate-build --enable-shared --disable-static \
--with-modules --with-quantum-depth=16 --with-gslib --without-wmf \
--disable-silent-rules --disable-dependency-tracking \
--with-gs-font-dir=/opt/local/share/ghostscript/fonts/ --with-lqr

Make seems to run fine but ends with an error.

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...
  CC       coders/magick_libMagickCore_la-png.lo
  CC       coders/magick_libMagickCore_la-ept.lo
  CC       coders/magick_libMagickCore_la-tiff.lo
  CC       coders/magick_libMagickCore_la-x.lo
  CC       coders/magick_libMagickCore_la-xwd.lo
  CC       filters/magick_libMagickCore_la-analyze.lo
  CCLD     magick/libMagickCore.la
/usr/bin/nm: no name list
ld: warning: directory not found for option '-L/opt/local/lib'
ld: warning: cannot export hidden symbol _SyncImagePixelCache from magick/.libs/magick_libMagickCore_la-cache.o
ld: warning: cannot export hidden symbol _ResetQuantumState from magick/.libs/magick_libMagickCore_la-quantum.o
copying selected object files to avoid basename conflicts...
/usr/bin/ranlib: file: magick/.libs/libMagickCore.a(magick_libMagickCore_la-PreRvIcccm.o) has no symbols
ranlib: file: magick/.libs/libMagickCore.a(magick_libMagickCore_la-PreRvIcccm.o) has no symbols
  CC       wand/wand_libMagickWand_la-animate.lo
  CC       wand/wand_libMagickWand_la-compare.lo
  CC       wand/wand_libMagickWand_la-composite.lo
  CC       wand/wand_libMagickWand_la-conjure.lo
  CC       wand/wand_libMagickWand_la-convert.lo
  CC       wand/wand_libMagickWand_la-deprecate.lo
  CC       wand/wand_libMagickWand_la-display.lo
  CC       wand/wand_libMagickWand_la-drawing-wand.lo
  CC       wand/wand_libMagickWand_la-identify.lo
  CC       wand/wand_libMagickWand_la-import.lo
  CC       wand/wand_libMagickWand_la-magick-image.lo
  CC       wand/wand_libMagickWand_la-magick-property.lo
  CC       wand/wand_libMagickWand_la-magick-wand.lo
  CC       wand/wand_libMagickWand_la-mogrify.lo
  CC       wand/wand_libMagickWand_la-montage.lo
  CC       wand/wand_libMagickWand_la-pixel-iterator.lo
  CC       wand/wand_libMagickWand_la-pixel-wand.lo
  CC       wand/wand_libMagickWand_la-stream.lo
  CC       wand/wand_libMagickWand_la-wand.lo
  CC       wand/wand_libMagickWand_la-wand-view.lo
  CCLD     wand/libMagickWand.la
ld: warning: directory not found for option '-L/opt/local/lib'
sed: OSX/ImageMagick-6.7.9-8/magick/libMagickCore.la: No such file or directory
libtool: link: `OSX/ImageMagick-6.7.9-8/magick/libMagickCore.la' is not a valid libtool archive
make[1]: *** [wand/libMagickWand.la] Error 1
make: *** [all] Error 2

Google learns that more OSX Mountin Lion users run into this error.

Till now I am still stuck on one core.

Finally I have got it working, ImageMagick multicore support (OpenMP) on OSX Mountin Lion.

What I did:
Install MacPorts and it's dependencies, like the command-line tools for Xcode. After that I did a selfupdate for MacPorts

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sudo port -v selfupdate

Then I installed some packages using MacPorts

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sudo port -v install freetype +bytecode
sudo port -v install librsvg
sudo port -v install +graphviz +gs +wmf +jbig +jpeg2 +lcms # results in an error?
sudo port install jpeg

After that I downloaded the ImageMagick source (http://www.imagemagick.org/download/ImageMagick.tar.gz), and did a regular 'configure', 'make', 'make install'. No errors occured.

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./configure
make
sudo make install

To check if my install was succesful I did a version check.

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identify -version
Version: ImageMagick 6.7.9-8 2012-09-27 Q16 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2012 ImageMagick Studio LLC
Features: OpenMP OpenCL

Both OpenMP and OpenCL are installed (as they supposed to be).

Kudo's for fmw42 for his suggestion of using MacPorts to install the dependencies.

Glad to hear that you worked things out.

Legacy ImageMagick Discussions Archive

Is there ImageMagick multicore support (OpenMP) for OSX?

Is there ImageMagick multicore support (OpenMP) for OSX?

Re: Is there ImageMagick multicore support (OpenMP) for OSX?

Re: Is there ImageMagick multicore support (OpenMP) for OSX?

Re: Is there ImageMagick multicore support (OpenMP) for OSX?

Re: Is there ImageMagick multicore support (OpenMP) for OSX?