[petsc-dev] PETSc with CUDA without CUSP

[Daniel Lowell]

If I am moving configureTypes() to config/BuildSystem/config/
compile/CUDA.py won't I also need a Configure class for it be contained?

Also, there is another check config/PETSc/packages/cuda.py has which might
be needed:
 def checkNVCCDoubleAlign(self)


On Mon, Sep 12, 2011 at 4:20 PM, Barry Smith <bsmith at mcs.anl.gov> wrote:

>
>  Daniel,
>
>    The way we have things set up currently is kind of stupid. We have two
> cuda.py files one to set up the cuda compiler and the other that sets up
> PETSc to use cuda and cusp/thrust. So the first one handles the
> -with-cudac="" command which makes sense but the second one handles the
> --with-cuda-arch command which does not make sense; essentially the
> configureType() method from the second cuda.py should be moved to the first
> cuda.py and used.  Then the second cuda.py should be renamed something else;
> perhaps the way to set PETSc to use everything could be with
> --with-cuda-cusp-thrust or some other better command.
>
>   Anyways you or anyone else can try moving the configureType() from
> config/PETSc/packages/cuda.py to config/BuildSystem/config/compile/CUDA.py
> and rework it to use the precision provider stuff like is done in
> config/BuildSystem/config/packages/BlasLapack.py and then you would just
> provide the --with-cudac and --with-cuda-arch and not use the --with-cuda
>
>
>
>   Barry
>
>
>
>
> On Sep 12, 2011, at 4:00 PM, Daniel Lowell wrote:
>
> > Is there a way to configure PETSc to build with nvcc CUDA support, but
> without the CUSP flags being set? I'd like to set up PETSc independent of
> any CUSP flags or MACROs.
> >
> > Default, any configuration settings require you specify CUSP and THRUST
> support.
> >
> > Here is my current configuration file:
> >
> > CFLG="--CFLAGS=-O2 -fopenmp -msse2 -mfpmath=sse -g -ggdb"
> > FFLG="--FFLAGS=-O2 -fopenmp -g"
> > WCC="--with-cc=gcc"
> > MPI_DIR="--with-mpi-dir=$MPICH2_HOME"
> > WBL="--with-blas-lapack-dir=$INTEL_MKL"
> > LAD="--download-c-blas-lapack=yes --download-f-blas-lapack=yes"
> > HYP="--download-hypre=1"
> > HDF="--with-hdf5=1 --download-hdf5=1"
> > CUD="--with-cuda-dir=/soft/cuda-4.0/cuda"
> > USP="--with-thrust-dir=/soft/cuda-4.0/cuda/include
> --with-cusp-dir=/soft/cuda-4.0/cuda/include"
> >
> >
> > ./config/configure.py $MPI_DIR $LAD $CFLG $FFLG $HYP $HDF $CUD \
> > --with-cudac="nvcc -m64" \
> > --with-precision=double \
> > --with-clanguage=c \
> > --with-cuda-arch=sm_20 \
> > PETSC_ARCH=structgrid_cuda
> >
> >
> >
> > Note my USP flag is not included in the configuration invocation.
> >
> >
> >
> > Thanks,
> >
> > Daniel Lowell
>
>
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