Hi Bruno,
> If I could get involved in this development, I would be helpful to
> optimize the memory transfer between GPU and CPU by testing different CUDA
> C programming schemes like this:
> https://devblogs.nvidia.com/how-overlap-data-transfers-cuda-cc/
> That would be nice. Playing with
Daniel,
Using MPI and CUDA together is pretty much work in progress. On the
> developer branch, LinearAlgebra::distributed::Vector supports
> storing its elements on a CUDA device, but the values are copied to the
> CPU for MPI communication.
> The pull request
!
Sincerely,
Chih-Che
On Thu, Nov 8, 2018 at 10:58 PM Bruno Turcksin
wrote:
> Chih-Che,
>
> Le jeu. 8 nov. 2018 à 09:49, Chih-Che Chueh a écrit :
> > -- The CUDA compiler identification is unknown
> > -- Check for working CUDA compiler: /pkg/cuda/8.0.61/bin/nvcc
> >
Bruno
> See the attached file for your reference and checking.
> The testsuite only runs for CUDA 8.0 and 9.0 can you try one of this
> version of CUDA and see if that helps?
>
When I am using cuda/8.0.61, I get the following error after I do cmake.
[chueh5851a@glogin1 build]$ module list
Bruno,
> make[1]: ***
> [source/matrix_free/CMakeFiles/obj_matrix_free_debug.dir/all] Error 2
> > make[1]: *** Waiting for unfinished jobs
> It looks like the first error is before what you showed. Also can you
> post the detailed.log file.
>
See the attached file for your reference and
Hi all,
I am trying installing dealII with CUDA in a GPG machine by following this:
https://www.dealii.org/9.0.0/external-libs/cuda.html
But I get this error in terms of matrix_tools.cc.o. Is this because I don't
turn off Trilinos stuff while cmaking deal.II for successful installation
with
Hi Wolfgang,
I am happy to say that I can run both step-32.debug and step-32.release
successfully in parallel. Basically, I re-install p4est again by following
the steps:
./configure --enable-shared --enable-mpi
--prefix=/home/chueh5851a/software/p4est-2.0/FAST
make -j12 &> OUT.log
make install
Hi Wolfgang,
I don't know what is happening, but I see that all of the cases you show
> run
> the tutorial programs in release mode. Can you run them in debug mode and
> see
> whether you can get a better error message this way?
>
I will try this later after I figure out this warning happening
Hi Wolfgang,
Hard to tell what's going wrong. What happens if you run it with one MPI
> process (or without the 'mpirun -np 4')?
Still, not working as you can see below.
[chueh5851a@clogin2 step-xx]$ ./step-32
step-32:140628 terminated with signal 11 at PC=2aaac8a02bd2
SP=7fffb240.
, 2018 at 12:16 PM Wolfgang Bangerth
wrote:
> On 10/22/18 8:09 AM, Chih-Che Chueh wrote:
> > -- Could NOT find MPI_C (missing: MPI_C_WORKS)
> > -- Could NOT find MPI_CXX (missing: MPI_CXX_WORKS)
> > -- Could NOT find MPI_Fortran (missing: MPI_Fortran_WORKS)
> > --
Dear all,
In order to make install the deal.II, I load all the necessary modules
first so that I have this
[chueh5851a@clogin2 build]$ module list
Currently Loaded Modulefiles:
1) blacs/openmpi/gcc/64/1.1patch03 4) scalapack/openmpi/gcc/64/2.0.2
7) mlib/OpenBLAS-0.2.20
2)
> I'm going to add that installing a compiler will really only be the
>> first
>> step. After that, of course, comes the task of understanding how to
>> program these graphics cards, and all of the other things that require
>> interacting with the appropriate software levels. You
Hi Wolfgang,
I think you are expecting too much of Bruno. He has a day job as well, for
> which he is paid. I think you will need to figure out the installation on
> your system yourself -- otherwise, Bruno (or any other among us) will be
> asked to do so for everyone else on the mailing list
Hi Bruno,
> You definitely don't want to update your OS. I am also using ubuntu and I
> have several versions of gcc and clang installed. Lately, I have been using
> spack to install everything for me (https://github.com/LLNL/spack). This
> is becoming the standard way to install new programs
>
> 2017-08-23 20:49 GMT-04:00 Bruno Turcksin <bruno.turck...@gmail.com>:
>
>> Chih-Che,
>>
>> 2017-08-23 20:09 GMT-04:00 Chih-Che Chueh <chue...@gmail.com>:
>> > That's still not working with getting the same error. Is this just
>> because
&g
Hi Bruno
> I have already moved to the trilinos installation. But after installing
> for
> > a while, I get the error that you can see below. Is this because I am
> using
> > an old version of Intel MKL Math Kernel library? If not, does any one
> know
> > how to fix it?
> First you used pgi now
Hi Daniel,
Thanks for the answer for the successful p4est installation. I have not
seen you since 2013 deal.II workshop. It was nice to meet you and eat
dinner with you with the same table.
Hi Daniel, Bruno or any others,
I have already moved to the trilinos installation. But after installing
ake
> module.
>
> Regards,
> Jean-Paul
>
>
> On Wednesday, August 23, 2017 at 9:20:41 AM UTC+2, Chih-Che Chueh wrote:
>>
>> Hi all,
>>
>> When I try to install trilinos with Cmake, I find something strange:
>> while I am using cmake/3.9.1, after the in
Bruno,
> pgc++-Error-Unknown switch: -print-prog-name=ld
> Don't use pgi :-) We aren't done with the pgi port.
>
I just turn off pgi on my linux background while turning on the necessary
intel C compiler etc, and try again to use the online script. It seems to
work well but with some
PM, Bruno Turcksin <bruno.turck...@gmail.com>
wrote:
> Chih-Che
>
> 2017-08-17 20:39 GMT-04:00 Chih-Che Chueh <chue...@gmail.com>:
> > I can wait for the tests that are done. No worry.
> Everything is working now.
>
> Best,
>
> Bruno
>
> --
> The
Bruno,
> Let me know once your merger is done so that I can start to install the
> > deal.II with CUDA in the server I use now.
> The merge was done but in the mean time we broke three tests for CUDA
> :-(. I think that it is still worth to try to install deal with CUDA
> and just update later.
Bruno,
> Is there any reason why you still used the previous way? Is this because
> > your GPU accelerator was launched some years ago so that you are unable
> to
> > use the new simple way?
> The problem with UVM is that it makes it easy to write bad code. I am
> working on a code where we use
have any questions, please ask. We are looking for people to help
> us with CUDA.
>
> Best,
>
> Bruno
>
>
> On Monday, August 14, 2017 at 7:56:45 AM UTC-4, Chih-Che Chueh wrote:
>>
>> Dear deal.II developers and users,
>>
>> Recently, I spent some sp
Dear deal.II developers and users,
Recently, I spent some spare time assimilating CUDA C programming in the
last few months, and I already know very well how to use CUDA stream events
to let CPU and kernel (GPU) execution work asynchronously with efficiently
overlapping data transfer between CPU
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