[gmx-users] [gmx-developers] Problem in compiling Gromacs 4.6.1 with GPU on MAC OS X

[Mark Abraham]

On Wed, Mar 26, 2014 at 12:14 AM, xraynano <mancini at anl.gov> wrote:

> We have had a similar problem as described below. We have tried various
> work
> arounds that force use of clang correctly with CUDA, or that try to
> substitute gcc47 for clang. Then, we can get everything to compile, but
> when
> trying to run anything in the final installation, it fails with the error:
> Malformed Mach-o file
>

I haven't the faintest idea what a Mach-o file is.

Since you can get things to compile, you no longer have any problems
related to the email you forwarded below. Why did you want to ask me to
spend my time reading that?


> One would think someone by now would have figured out how to get the GPU
> version of GROMACS to properly compile for current Mac OSX. We are running
> 10.9.2 on a 12 core with Geforce 680 GPU.
>

Maybe they have, and haven't shared it. Asking people if they have solved
it might get a more useful response than expressing frustration that they
haven't shared it yet ;-)

On Mac, you need a CUDA-compatible compiler that can compile correct SIMD
intrinsics (ie. can use a functioning assembler), and preferably support
OpenMP. That's an extremely small set, and I don't even know if it is
non-zero. You can make do with something CUDA-compatible without SIMD or
OpenMP support, so long as the assembler works - there's various
discussions on http://redmine.gromacs.org about known problems.

Mark

salehi wrote
> > I was trying to install gromacs 4.6.1 with CUDA and have a weird problem.
> > My system is as the following
> > new iMAC OS x 10.8.3
> > GPU : FTX 650 M 512 MB
> > I also installed the open-mpi libraries into the /usr/local/lib folder
> > before installation. I have got to say I'm by no means a UNIX expert.
> > although I have installed gromacs 4.6.1 with float double and mpi options
> > but they were all without GPU options. SO when I started installing 4.6.1
> > version with GPU I ran into problems. So I figured it has got to have sth
> > to do with the GPU! I don't know what environment variables I needed have
> > changed before installation with CMAKE, So I would appreciate it if the
> > experts here help me out.
> >
> > Firstly, I have installed FFTW3.3.3 with these options:
> >
> > ./configure --prefix /usr/local/fftw3 --enable-sse2 --enable-float
> > --enable-shared
> > make && make install
> >
> > so the fftw3 installation folder is /usr/local/fftw3.
> > my cuda source directory is located at :  /usr/local/cuda
> > and for the cmake options to install the gromacs.Then,
> > in the build folder within the gromacs root folder
> > cmake -DGMX_FFT_LIBRARY=fftw3
> > -DFFTW_LIBRARY='/usr/local/fftw3/lib/libfftw3f.a'
> > -DFFTW_INCLUDE_DIR='/usr/local/fftw3/include/' -DGMX_GPU=ON
> > -DCUDA_TOOLKIT_ROOT_DIR=/usr/local/cuda
> > -DCMAKE_INSTALL_PREFIX=/usr/local/gromacs-4.6.1 ../
> >
> > First of all I get the error which says the libfftw3f can not be found.
> > The following is my fftw3 installation folder :
> > drwxr-xr-x  3 root      102 26 Apr 22:04 pkgconfig
> > -rwxr-xr-x  1 root      899 26 Apr 22:04 libfftw3f.la
> > -rw-r--r--  1 root  2421656 26 Apr 22:04 libfftw3f.a
> >
> > As you can see the file libfftw3f.a is in the folder I have netered in
> the
> > cmake options. I don't know if there is any CMAKE variables I needed have
> > changed here, So I worked around that  by copying the contents of the
> > fftw3/lib folder to the usr/local/lib and since cmake looked into that
> > folder it found the fftw file and thus ignored my manual addresses for
> > fftw library. This time, the cmake command with the same options as above
> > ran successfully. However when I run the make I get:
> > sudo make
> >
> > [  0%] Building NVCC (Device) object
> >
> src/gmxlib/gpu_utils/CMakeFiles/gpu_utils.dir//./gpu_utils_generated_memtestG80_core.cu.o
> > clang: error: unsupported option '-dumpspecs'
> > clang: error: no input files
> > CMake Error at gpu_utils_generated_memtestG80_core.cu.o.cmake:206
> > (message):
> >   Error generating
> >
> >
> /Users/salehi/Downloads/gromacs-4.6.1/build/src/gmxlib/gpu_utils/CMakeFiles/gpu_utils.dir//./gpu_utils_generated_memtestG80_core.cu.o
> >
> >
> > make[2]: ***
> >
> [src/gmxlib/gpu_utils/CMakeFiles/gpu_utils.dir/./gpu_utils_generated_memtestG80_core.cu.o]
> > Error 1
> > make[1]: *** [src/gmxlib/gpu_utils/CMakeFiles/gpu_utils.dir/all] Error 2
> > make: *** [all] Error 2
> >
> >
> > I don't know if there is anything wrong with the installation of CUDA but
> > I could confirm that all the files that needed be there were there after
> > following CUDA's own web site.
> > Thank you so much in advance.
>
>
>
> --
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