[petsc-users] Configure error while building PETSc with CUDA/MVAPICH2-GDR

[Mark Adams]

You may need to set some env variables. This can be system specific so you
might want to look at docs or ask TACC how to run with GPU-aware MPI.

Mark

On Fri, Dec 8, 2023 at 5:17 PM Sreeram R Venkat <srvenkat at utexas.edu> wrote:

> Actually, when I compile my program with this build of PETSc and run, I
> still get the error:
>
> PETSC ERROR: PETSc is configured with GPU support, but your MPI is not
> GPU-aware. For better performance, please use a GPU-aware MPI.
>
> I have the mvapich2-gdr module loaded and MV2_USE_CUDA=1.
>
> Is there anything else I need to do?
>
> Thanks,
> Sreeram
>
> On Fri, Dec 8, 2023 at 3:29 PM Sreeram R Venkat <srvenkat at utexas.edu>
> wrote:
>
>> Thank you, changing to CUDA 11.4 fixed the issue. The mvapich2-gdr module
>> didn't require CUDA 11.4 as a dependency, so I was using 12.0
>>
>> On Fri, Dec 8, 2023 at 1:15 PM Satish Balay <balay at mcs.anl.gov> wrote:
>>
>>> Executing: mpicc -show
>>> stdout: icc -I/opt/apps/cuda/11.4/include -I/opt/apps/cuda/11.4/include
>>> -lcuda -L/opt/apps/cuda/11.4/lib64/stubs -L/opt/apps/cuda/11.4/lib64
>>> -lcudart -lrt -Wl,-rpath,/opt/apps/cuda/11.4/lib64
>>> -Wl,-rpath,XORIGIN/placeholder -Wl,--build-id -L/opt/apps/cuda/11.4/lib64/
>>> -lm -I/opt/apps/intel19/mvapich2-gdr/2.3.7/include
>>> -L/opt/apps/intel19/mvapich2-gdr/2.3.7/lib64 -Wl,-rpath
>>> -Wl,/opt/apps/intel19/mvapich2-gdr/2.3.7/lib64 -Wl,--enable-new-dtags -lmpi
>>>
>>>     Checking for program /opt/apps/cuda/12.0/bin/nvcc...found
>>>
>>> Looks like you are trying to mix in 2 different cuda versions in this
>>> build.
>>>
>>> Perhaps you need to use cuda-11.4 - with this install of mvapich..
>>>
>>> Satish
>>>
>>> On Fri, 8 Dec 2023, Matthew Knepley wrote:
>>>
>>> > On Fri, Dec 8, 2023 at 1:54 PM Sreeram R Venkat <srvenkat at utexas.edu>
>>> wrote:
>>> >
>>> > > I am trying to build PETSc with CUDA using the CUDA-Aware
>>> MVAPICH2-GDR.
>>> > >
>>> > > Here is my configure command:
>>> > >
>>> > > ./configure PETSC_ARCH=linux-c-debug-mvapich2-gdr --download-hypre
>>> > >  --with-cuda=true --cuda-dir=$TACC_CUDA_DIR --with-hdf5=true
>>> > > --with-hdf5-dir=$TACC_PHDF5_DIR --download-elemental --download-metis
>>> > > --download-parmetis --with-cc=mpicc --with-cxx=mpicxx
>>> --with-fc=mpif90
>>> > >
>>> > > which errors with:
>>> > >
>>> > >           UNABLE to CONFIGURE with GIVEN OPTIONS (see configure.log
>>> for
>>> > > details):
>>> > >
>>> > >
>>> ---------------------------------------------------------------------------------------------
>>> > >   CUDA compile failed with arch flags " -ccbin mpic++ -std=c++14
>>> > > -Xcompiler -fPIC
>>> > >   -Xcompiler -fvisibility=hidden -g -lineinfo -gencode
>>> > > arch=compute_80,code=sm_80"
>>> > >   generated from "--with-cuda-arch=80"
>>> > >
>>> > >
>>> > >
>>> > > The same configure command works when I use the Intel MPI and I can
>>> build
>>> > > with CUDA. The full config.log file is attached. Please let me know
>>> if you
>>> > > need any other information. I appreciate your help with this.
>>> > >
>>> >
>>> > The proximate error is
>>> >
>>> > Executing: nvcc -c -o
>>> /tmp/petsc-kn3f29gl/config.packages.cuda/conftest.o
>>> > -I/tmp/petsc-kn3f29gl/config.setCompilers
>>> > -I/tmp/petsc-kn3f29gl/config.types
>>> > -I/tmp/petsc-kn3f29gl/config.packages.cuda  -ccbin mpic++ -std=c++14
>>> > -Xcompiler -fPIC -Xcompiler -fvisibility=hidden -g -lineinfo -gencode
>>> > arch=compute_80,code=sm_80  /tmp/petsc-kn3f29gl/config.packages.cuda/
>>> > conftest.cu
>>> > stdout:
>>> > /opt/apps/cuda/11.4/include/crt/sm_80_rt.hpp(141): error: more than one
>>> > instance of overloaded function "__nv_associate_access_property_impl"
>>> has
>>> > "C" linkage
>>> > 1 error detected in the compilation of
>>> > "/tmp/petsc-kn3f29gl/config.packages.cuda/conftest.cu".
>>> > Possible ERROR while running compiler: exit code 1
>>> > stderr:
>>> > /opt/apps/cuda/11.4/include/crt/sm_80_rt.hpp(141): error: more than one
>>> > instance of overloaded function "__nv_associate_access_property_impl"
>>> has
>>> > "C" linkage
>>> >
>>> > 1 error detected in the compilation of
>>> > "/tmp/petsc-kn3f29gl/config.packages.cuda
>>> >
>>> > This looks like screwed up headers to me, but I will let someone that
>>> > understands CUDA compilation reply.
>>> >
>>> >   Thanks,
>>> >
>>> >      Matt
>>> >
>>> > Thanks,
>>> > > Sreeram
>>> > >
>>> >
>>> >
>>> >
>>
>>
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