dolfin team mailing list archive

[Anders Logg <logg@xxxxxxxxx>]

On Tue, Apr 01, 2008 at 09:46:34AM +0200, Kristian Oelgaard wrote:
> Quoting Johannes Ring <johannr@xxxxxxxxx>:
> 
> > On Mon, March 31, 2008 Kristian Oelgaard wrote:
> > > Quoting Anders Logg <logg@xxxxxxxxx>:
> > >
> > >> On Mon, Mar 31, 2008 at 02:18:58PM +0100, Garth N. Wells wrote:
> > >> >
> > >> >
> > >> > Anders Logg wrote:
> > >> > > On Mon, Mar 31, 2008 at 02:26:51PM +0200, DOLFIN wrote:
> > >> > >> One or more new changesets pushed to the primary dolfin repository.
> > >> > >> A short summary of the last three changesets is included below.
> > >> > >>
> > >> > >> changeset:   3832:f2ce62a937ac545255038c9fe6f74ecf639046d7
> > >> > >> tag:         tip
> > >> > >> user:        "Ola Skavhaug <skavhaug@xxxxxxxxx>"
> > >> > >> date:        Mon Mar 31 14:28:34 2008 +0200
> > >> > >> files:       demo/mesh/meshfunction/cpp/SConstruct
> > >> > >> description:
> > >> > >> Add build file.
> > >> > >
> > >> > > Should we add this to all cpp demos?
> > >> > >
> > >> >
> > >> > Yes.
> > >> >
> > >> > Garth
> > >>
> > >> ok, take a look at the SConstruct file for the Poisson demo
> > >> so it looks ok before we start copying it to everywhere.
> > >
> > > I get the following error:
> > >
> > > mpicxx -o main.o -c -Wall -pipe -ansi -g -Werror -O2 -fno-strict-aliasing
> > > -pthread -DDEBUG -DNDEBUG -DHAS_MPI=1 -DMPICH_IGNORE_CXX_SEEK
> > > -DPACKAGE_VERSION="0.7.2" -DHAS_PETSC=1 -DHAS_SLEPC=1 -DHAS_UMFPACK=1
> > > -DHAS_GTS=1 -I/home/oelgaard/fenics/dolfin/local/include
> > > -I/usr/lib/python2.5/site-packages/numpy/core/include
> > > -I/home/oelgaard/slepc-2.3.3 -I/home/oelgaard/slepc-2.3.3/include
> > > -I/usr/include/suitesparse -I/usr/include/python2.5
> > > -I/home/oelgaard/petsc-2.3.3-p7/bmake/linux-gnu-cxx-debug
> > > -I/home/oelgaard/petsc-2.3.3-p7/include
> > >
> >
> -I/home/oelgaard/petsc-2.3.3-p7/externalpackages/mpich2-1.0.5p4/linux-gnu-cxx-debug/include
> > > -I/home/oelgaard/local/include -I/usr/include/libxml2
> > > -I/usr/include/glib-2.0
> > > -I/usr/lib/glib-2.0/include main.cpp
> > > sh: mpicxx: command not found
> > > scons: *** [main.o] Error 127
> > > scons: building terminated because of errors.
> > >
> > > because I use a local installation of PETSc (that downloads mpich).
> > > should the PETSc path be added to PATH in dolfin.conf? since DOLFIN picks
> > > up the
> > > compiler from PETSc?
> > >
> > > Currently my SConstruct looks like this:
> > >
> > > import commands
> > > import os
> > >
> > > # Use system PATH since I don't have mpicxx in default path
> > > env = Environment(ENV = {'PATH' : os.environ['PATH']})
> > >
> > > # Get compiler from pkg-config
> > > compiler = commands.getoutput('pkg-config --variable=compiler dolfin')
> > >
> > > # Update CXX compiler
> > > env.Replace(CXX = compiler)
> > >
> > > # Get DOLFIN cflags and libs
> > > env.ParseConfig('pkg-config --cflags --libs dolfin')
> > >
> > > # Build program
> > > env.Program('demo', 'main.cpp')
> > >
> > > which is not too elegant but it works.
> > 
> > Perhaps we should use os.environ when creating the SCons Environment, that
> > is
> > 
> > env = Environment(ENV=os.environ, CXX=compiler)
> > 
> > This should preserve peoples environment variables. A standard SConstruct
> > for the demos then becomes:
> > 
> > import os, commands
> > 
> > # Get compiler from pkg-config
> > compiler = commands.getoutput('pkg-config --variable=compiler dolfin')
> > 
> > # Create a SCons Environment based on the main os environment:
> > env = Environment(ENV=os.environ, CXX=compiler)
> > 
> > # Get compiler flags from pkg-config
> > env.ParseConfig('pkg-config --cflags --libs dolfin')
> > 
> > # Program name
> > env.Program('demo', 'main.cpp')
> > 
> > Does this work for you Kristian?
> 
> Yes. I vote for this SConstruct.
> 
> Kristian

ok, I've updated the Poisson demo SConstruct accordingly. Check that
this is ok now and then we can copy it to the other demos.

-- 
Anders