Hypre

Hypre is a massively parallelizable linear solver library written and designed for use in C++. It provides many nice features and objects beyond simple "matrix" or "vector" objects - these include grids, meshes, and stencils. It was developed at Lawrence Livermore National Lab.

Installation

Installing Hypre can be tricky. The documentation will give much more in-depth details than this page. Links to the documentation are available at https://computation.llnl.gov/casc/hypre/software.html .

Dependencies

Hypre will require an installation of MPI on your machine. I use LAM MPI, but you can also use OpenMPI.

Configuration

Download the hypre tarball and decompress it. Put your configure wrapper into the src/ directory of the decompressed Hypre tarball.

Mac Leopard (OS X 10.5)

This configure line has been used to build hypre 2.0.0 with LAM MPI on Mac Leopard.

#!/bin/sh
#
# run configure
# make
# make install
# make test

./configure \
    --with-MPI-include=/path/to/mpi/include \
    --with-MPI-lib-dirs=/path/to/mpi/lib \
    --with-MPI-libs="mpi lam pmpi util" \
    --prefix=/path/to/hypre/2.0.0 \
    \
    F77=/usr/local/bin/gfortran \
    \
    CFLAGS=-DMPIPP_H \
    CXXFLAGS=-DMPIPP_H

The -DMPIPP_H compiler flags are only required for LAM MPI and OpenMPI; they are not needed if you use any other MPI install (e.g. MPICH).

Also see Gfortran.

Red Hat Linux

I was able to successfully install Hypre on a Red Hat Linux workstation with OpenMPI with the following configure line:

#!/bin/sh
#
# run configure
# make
# make install
# make test

./configure \
 --with-MPI \
 --with-MPI-include=/path/to/openmpi/1.4.3/include \
 --with-MPI-libs=mpi \
 --with-MPI-lib-dirs=/path/to/openmpi/1.4.3/lib \
 --prefix=/path/to/hypre/2.0.0 \
 --with-blas-lib-dirs=/usr/lib \
 --with-lapack-lib-dirs=/usr/lib \
 --enable-shared \
 \
 CC="/usr/bin/gcc" \
 CXX="/usr/bin/g++" \
 \
 CFLAGS="-DMPIPP_H" \
 CXXFLAGS="-DMPIPP_H"

Installation Errors

Error with dlamch.o

If you see an error like this:

/usr/bin/ld: /path/to/hypre/src/utilities/dlamch.o: 
relocation R_X86_64_32S against 'a local symbol' can not be used when making 
a shared object; recompile with -fPIC
/path/to/hypre/src/utilities/dlamch.o: 
could not read symbols: Bad value
collect2: ld returned 1 exit status

Then you need to edit /path/to/hypre/src/lapack/Makefile, and add an -fPIC flag, as shown below:

dlamch.o : dlamch.c ${LAPACK_HEADERS}
    ${CC} -c -fPIC dlamch.c

Duplicate symbol start

When I tried to build Hypre on a 64-bit Mac server, I saw the following error while running configure:

checking whether we are using the GNU Fortran 77 compiler... yes
checking whether /usr/local/bin/gfortran accepts -g... yes
checking how to get verbose linking output from /usr/local/bin/gfortran... -v
checking for Fortran libraries of /usr/local/bin/gfortran...  -lcrt1.10.5.o
 -L/usr/local/lib/gcc/x86_64-apple-darwin10.4.0/4.6.0 -L/usr/local/lib/gcc/x86_64-apple-darwin10.4.0/4.6.0/../../.. 
 -lgfortran -lgcc_ext.10.5 -lSystem
checking for dummy main to link with Fortran libraries... unknown
configure: error: linking to Fortran libraries from C fails
See `config.log' for more details.

The underlying error, appearing in config.log, is this:

configure:6444: /usr/bin/gcc -o conftest -mmacosx-version-min=10.7.0 -DMPIPP_H -arch x86_64
 -L/usr/local/lib/gcc/x86_64-apple-darwin10.4.0/4.6.0 
 -L/usr/local/lib/gcc/x86_64-apple-darwin10.4.0/4.6.0/../../.. -lgfortran -lgcc_ext.10.5 
 -lSystem   conftest.c   -lcrt1.10.5.o -L/usr/local/lib/gcc/x86_64-apple-darwin10.4.0/4.6.0
 -L/usr/local/lib/gcc/x86_64-apple-darwin10.4.0/4.6.0/../../.. -lgfortran -lgcc_ext.10.5 -lSystem >&5
ld: duplicate symbol start in /usr/lib/crt1.10.5.o and /usr/lib/crt1.10.6.o
collect2: ld returned 1 exit status

And the underlying problem with that is the -lcrt1.10.5.o flag. This somehow gets parsed from the system and put into the FLIBS variable. So, this variable needs to be re-defined in the configure script to be the same thing except without -lcrt1.10.5.o:

FLIBS="-L/usr/local/lib/gcc/x86_64-apple-darwin10.4.0/4.6.0
 -L/usr/local/lib/gcc/x86_64-apple-darwin10.4.0/4.6.0/../../..
 -lgfortran -lgcc_ext.10.5 -lSystem"

After changing that, everything worked fine.

Examples

This examples section is a stub. A team of expertly-trained librarian ninjas has been dispatched to research this topic, finish this examples section, and assassinate all eyewitnesses who contradict their account. They should be done pretty soon. Template:Stub Category:Stubs

Resources

Hypre home page - http://acts.nersc.gov/hypre/