Installing multinest & pymultinest has proved non-trivial.
First, you probably can't build using the default mac gcc; a gcc version >4.5 is probably needed. The error I got installing MultiNest only turned up one useful result on google... it was a question I had asked on the hyperion github page.
To get around that, I installed the hpc compilers (4.7 since I'm on OS X 10.7) into /usr/local/hpc/ to keep them distinct from the system gcc, which is needed for many other things.
I then installed the openMPI compilers to /usr/local/openmpi:
./configure --prefix=/usr/local/openmpi make sudo make install
Then I tried installing pymultinest
dor ~/repos/MultiNest cmake/master$ mkdir build
dor ~/repos/MultiNest cmake/master$ cd build/
dor ~/repos/MultiNest/build cmake/master$ which mpif90
/usr/local/openmpi/bin/mpif90
dor ~/repos/MultiNest/build cmake/master$ which gfortran
/usr/local/hpc/bin//gfortran
dor ~/repos/MultiNest/build cmake/master$ which gcc
/usr/local/hpc/bin//gcc
dor ~/repos/MultiNest/build cmake/master$ cmake -DCMAKE_{C,CXX}_FLAGS="-arch x86_64" -DCMAKE_Fortran_FLAGS="-m64" ..
-- The Fortran compiler identification is GNU
-- The C compiler identification is GNU 4.7.1
-- The CXX compiler identification is GNU 4.7.1
-- Check for working Fortran compiler: /usr/local/hpc/bin/gfortran
-- Check for working Fortran compiler: /usr/local/hpc/bin/gfortran -- works
-- Detecting Fortran compiler ABI info
-- Detecting Fortran compiler ABI info - done
-- Checking whether /usr/local/hpc/bin/gfortran supports Fortran 90
-- Checking whether /usr/local/hpc/bin/gfortran supports Fortran 90 -- yes
-- Checking whether C compiler has -isysroot
-- Checking whether C compiler has -isysroot - yes
-- Checking whether C compiler supports OSX deployment target flag
-- Checking whether C compiler supports OSX deployment target flag - yes
-- Check for working C compiler: /usr/local/hpc/bin/gcc
-- Check for working C compiler: /usr/local/hpc/bin/gcc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Checking whether CXX compiler has -isysroot
-- Checking whether CXX compiler has -isysroot - yes
-- Checking whether CXX compiler supports OSX deployment target flag
-- Checking whether CXX compiler supports OSX deployment target flag - yes
-- Check for working CXX compiler: /usr/local/hpc/bin/g++
-- Check for working CXX compiler: /usr/local/hpc/bin/g++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Looking for Fortran dgemm
-- Looking for Fortran dgemm - found
-- Looking for include file pthread.h
-- Looking for include file pthread.h - found
-- Looking for pthread_create
-- Looking for pthread_create - found
-- Found Threads: TRUE
-- A library with BLAS API found.
-- Looking for Fortran cheev
-- Looking for Fortran cheev - found
-- A library with LAPACK API found.
-- Detected gfortran, adding -ffree-line-length-none compiler option.
-- Found MPI_C: /usr/local/openmpi/lib/libmpi.dylib;/usr/lib/libm.dylib
-- Found MPI_CXX: /usr/local/openmpi/lib/libmpi_cxx.dylib;/usr/local/openmpi/lib/libmpi.dylib;/usr/lib/libm.dylib
-- Found MPI_Fortran: /usr/local/openmpi/lib/libmpi_f90.a;/usr/local/openmpi/lib/libmpi_f77.dylib;/usr/local/openmpi/lib/libmpi.dylib;/usr/lib/libm.dylib
-- Configuring done
-- Generating done
-- Build files have been written to: /Users/adam/repos/MultiNest/build
dor ~/repos/MultiNest/build cmake/master$ make
Scanning dependencies of target multinest_mpi_shared
[ 1%] Building Fortran object src/CMakeFiles/multinest_mpi_shared.dir/utils.f90.o
[ 3%] Building Fortran object src/CMakeFiles/multinest_mpi_shared.dir/utils1.f90.o
[ 5%] Building Fortran object src/CMakeFiles/multinest_mpi_shared.dir/kmeans_clstr.f90.o
[ 6%] Building Fortran object src/CMakeFiles/multinest_mpi_shared.dir/xmeans_clstr.f90.o
[ 8%] Building Fortran object src/CMakeFiles/multinest_mpi_shared.dir/posterior.F90.o
[ 10%] Building Fortran object src/CMakeFiles/multinest_mpi_shared.dir/priors.f90.o
[ 12%] Building Fortran object src/CMakeFiles/multinest_mpi_shared.dir/nested.F90.o
[ 13%] Building Fortran object src/CMakeFiles/multinest_mpi_shared.dir/cwrapper.f90.o
Linking Fortran shared library ../../lib/libmultinest_mpi.dylib
[ 13%] Built target multinest_mpi_shared
Scanning dependencies of target multinest_mpi_static
[ 15%] Building Fortran object src/CMakeFiles/multinest_mpi_static.dir/utils.f90.o
[ 17%] Building Fortran object src/CMakeFiles/multinest_mpi_static.dir/utils1.f90.o
[ 18%] Building Fortran object src/CMakeFiles/multinest_mpi_static.dir/kmeans_clstr.f90.o
[ 20%] Building Fortran object src/CMakeFiles/multinest_mpi_static.dir/xmeans_clstr.f90.o
[ 22%] Building Fortran object src/CMakeFiles/multinest_mpi_static.dir/posterior.F90.o
[ 24%] Building Fortran object src/CMakeFiles/multinest_mpi_static.dir/priors.f90.o
[ 25%] Building Fortran object src/CMakeFiles/multinest_mpi_static.dir/nested.F90.o
[ 27%] Building Fortran object src/CMakeFiles/multinest_mpi_static.dir/cwrapper.f90.o
Linking Fortran static library ../../lib/libmultinest_mpi.a
[ 27%] Built target multinest_mpi_static
Scanning dependencies of target multinest_shared
[ 29%] Building Fortran object src/CMakeFiles/multinest_shared.dir/utils.f90.o
[ 31%] Building Fortran object src/CMakeFiles/multinest_shared.dir/utils1.f90.o
[ 32%] Building Fortran object src/CMakeFiles/multinest_shared.dir/kmeans_clstr.f90.o
[ 34%] Building Fortran object src/CMakeFiles/multinest_shared.dir/xmeans_clstr.f90.o
[ 36%] Building Fortran object src/CMakeFiles/multinest_shared.dir/posterior.F90.o
[ 37%] Building Fortran object src/CMakeFiles/multinest_shared.dir/priors.f90.o
[ 39%] Building Fortran object src/CMakeFiles/multinest_shared.dir/nested.F90.o
[ 41%] Building Fortran object src/CMakeFiles/multinest_shared.dir/cwrapper.f90.o
Linking Fortran shared library ../../lib/libmultinest.dylib
[ 41%] Built target multinest_shared
Scanning dependencies of target multinest_static
[ 43%] Building Fortran object src/CMakeFiles/multinest_static.dir/utils.f90.o
[ 44%] Building Fortran object src/CMakeFiles/multinest_static.dir/utils1.f90.o
[ 46%] Building Fortran object src/CMakeFiles/multinest_static.dir/kmeans_clstr.f90.o
[ 48%] Building Fortran object src/CMakeFiles/multinest_static.dir/xmeans_clstr.f90.o
[ 50%] Building Fortran object src/CMakeFiles/multinest_static.dir/posterior.F90.o
[ 51%] Building Fortran object src/CMakeFiles/multinest_static.dir/priors.f90.o
[ 53%] Building Fortran object src/CMakeFiles/multinest_static.dir/nested.F90.o
[ 55%] Building Fortran object src/CMakeFiles/multinest_static.dir/cwrapper.f90.o
Linking Fortran static library ../../lib/libmultinest.a
Error copying file "/Users/adam/repos/MultiNest/build/src/kmeans_clstr.mod" to "/Users/adam/repos/MultiNest/modules/".
make[2]: *** [../lib/libmultinest.a] Error 1
make[1]: *** [src/CMakeFiles/multinest_static.dir/all] Error 2
make: *** [all] Error 2
The approach that worked:
mkdir -p build lib modules bin/chains
cd build
cmake -DCMAKE_{C,CXX}_FLAGS="-arch x86_64" -DCMAKE_Fortran_FLAGS="-m64" ..
make
sudo make install
cd ../lib
ln -s libmultinest.dylib libmultinest.so
export DYLD_LIBRARY_PATH=$DYLD_LIBRARY_PATH:/usr/local/hpc/lib:/usr/local/openmpi/lib/
export LD_LIBRARY_PATH=/Users/adam/repos/MultiNest/lib
At this point, multinest imports but doesn't run the tests...