Thanks Bruno, in the end I succeeded in installing the latest stable
version from github. I recall briefly what I did in
the hope that it can help others.
1)git clone https://github.com/dealii/dealii
2)cmake -DCMAKE_INSTALL_PREFIX=/usr/local/ /root/dealii
3)cmake DEAL_II_WITH_CUDA:BOOL=ON
4)make
5)make install
However when I tried to compile the solver_03.cu in tests/cuda I had few
undefined symbols (due to the cxx11 prefix issue described in other parts).
What I did was to compile the following "dummy.c" file
_ZN6dealii18deal_II_exceptions9internals25get_cusolver_error_stringB5cxx11E16cusolverStatus_t()
{
ZN6dealii18deal_II_exceptions9internals25get_cusolver_error_stringE16cuso}
_ZN6dealii18deal_II_exceptions9internals25get_cusparse_error_stringB5cxx11E16cusparseStatus_t()
{
_ZN6dealii18deal_II_exceptions9internals25get_cusparse_error_stringE16cusp}
_ZN6dealii9LogStream10get_streamB5cxx11Ev() { return 0; }
Then I link the file with the following command:
nvcc -o solver_03 solver_03.o -L/usr/local/lib/ -ldeal_II -std c++11
/root/dummy.o
(before I compiled the source with
nvcc -c solver_03.cu -O3 -I/usr/local/include -I
../../bundled/boost-1.62.0/include -std c++11).
(I don't know if the
The program works correctly on the GPU (I double checked running it under
the control of the nvprof command).
This is with CUDA 9.2.
Thanks again and Best Wishes to everyone for a Happy 2019,
Massimo
On Mon, Dec 31, 2018 at 2:15 PM Bruno Turcksin <bruno.turck...@gmail.com>
wrote:
> Massimo,
>
> If you can use the development version of deal. The CUDA support is
> pretty new and we have made a lot of progress since the latest
> release. Look here
> https://github.com/dealii/candi/blob/dealii-9.0/candi.cfg#L67 to
> switch to the development version. If you want to use the release
> version, I would advise you to switch to CUDA 8.0
>
> Best,
>
> Bruno
>
> Le sam. 29 déc. 2018 à 09:57, Massimo Bernaschi
> <massimo.bernas...@gmail.com> a écrit :
> >
> > I use this thread since I am having troubles installing dealii with CUDA
> support.
> > I am using the "candi.sh" route (hopefully this makes sense).
> > I modified the dealii.package (file attached) to turn off Trilinos and
> to turn on CUDA support. I am using GCC 5.3 and CUDA 9.2.
> > The compilation fails with the following errors:
> >
> /root/deal.ii-candi/tmp/unpack/deal.II-v9.0.1/include/deal.II/matrix_free/cuda_matrix_free.templates.h(391):
> error: a variable length array cannot have static storage duration
> >
> >
> /root/deal.ii-candi/tmp/unpack/deal.II-v9.0.1/include/deal.II/matrix_free/cuda_matrix_free.templates.h(392):
> error: a variable length array cannot have static storage duration
> >
> > I also attach the full candi_build.log file. Could the problem be that I
> am also forcing the usage of the bundled Boost?
> > Did someone succeed in compiling dealII with CUDA using the candi.sh
> script?
> > Thanks in advance and best regards,
> > Massimo
> >
> > On Tuesday, November 20, 2018 at 1:46:39 PM UTC+1, Daniel Arndt wrote:
> >>
> >> Hi Chih-Che,
> >>
> >>>
> >>> I am interested in testing the overlapping and different schemes
> developed you and others in deal.II.
> >>>
> >>> I have one question: if I want to install the latest "develop"
> version, I just simply type this: git clone
> https://github.com/dealii/dealii, right? If not, which command I need to
> type?
> >>
> >> Yes, you can obtain a recent version using that command. However, the
> PR is not merged yet, so you would need to run something like the following
> afterwards to checkout the relevant branch:
> >>
> >> git checkout -b masterleinad-cuda_aware_mpi master
> >> git pull https://github.com/masterleinad/dealii.git cuda_aware_mpi
> >>
> >>
> >> Best,
> >> Daniel
> >
> > --
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