[petsc-dev] cuda 4.1 errors with sm_20

[Matthew Knepley]

On Tue, Mar 27, 2012 at 10:44 PM, David Fuentes <fuentesdt at gmail.com> wrote:

> Hi Satish,
>
> what version of cusp/thrust are you using with cuda 4.1 ?
>

Thrust is packaged with 4.1 and that is the one you should use (just
--with-thrust).
We use the latest pull from CUSP, which is 2.00

   Matt


>
> On Tue, Mar 27, 2012 at 10:23 PM, Satish Balay <balay at mcs.anl.gov> wrote:
>
>> Chetan, thanks for the note. I guess I should have first searched
>> petsc archives :).
>>
>> Looks like we default to -g3 for gcc, but -g for g++/gfortran [due to
>> bugs in some version of these compilers]. However -g3 is usefull for
>> debugging macros - so its a good default.
>>
>> For now - I'm switching the default from -g3 to -g for cuda
>> builds [one can always override this with COPTFLAGS options]
>>
>> Satish
>>
>> On Tue, 27 Mar 2012, Chetan Jhurani wrote:
>>
>> > Satish,
>> >
>> > This is because of -g3 option to nvcc.  Attaching my
>> > earlier mail to petsc-maint.
>> >
>> > Chetan
>> >
>> > > -----Original Message-----
>> > > From: petsc-dev-bounces at mcs.anl.gov [mailto:
>> petsc-dev-bounces at mcs.anl.gov] On Behalf Of Satish Balay
>> > > Sent: Tuesday, March 27, 2012 7:31 PM
>> > > To: petsc-dev at mcs.anl.gov
>> > > Subject: [petsc-dev] cuda 4.1 errors with sm_20
>> > >
>> > > I get errors with building petsc using cuda-4.1 with 'sm_20' on
>> > > linux. Reverting to cuda-4.0 [with cusp-v0.3.1, thrust-1.6.0]
>> > > overcomes this issue.
>> > >
>> > > >From
>> > >
>> http://developer.download.nvidia.com/compute/cuda/4_1/rel/toolkit/docs/CUDA_Toolkit_Release_Notes_And_
>> > > Errata.txt
>> > > * For target architecture sm_2x, a new compiler component 'cicc' is
>> used instead of 'nvopencc'.
>> > >
>> > > So the new compiler used for sm20 - 'cicc' is perhaps buggy.
>> > >
>> > > Matt,Sean or Barry, Do you see the same behavior on Mac?
>> > >
>> > > Satish
>> > > ---------------------------
>> > > balay at bb30:~/petsc-dev/src/mat/impls/aij/seq/seqcusp>nvcc -g
>> -arch=sm_20  -c --compiler-options="-Wall
>> > > -Wwrite-strings -Wno-strict-aliasing -Wno-unknown-pragmas -g3
>> -fno-inline -O0   -I/home/balay/petsc-
>> > > dev/include -I/home/balay/petsc-dev/arch-cuda-double/include
>> -I/usr/local/cuda/include -
>> > > I/home/balay/petsc-dev/arch-cuda-double/include/txpetscgpu/include
>> -I/usr/local/cusp-v0.3.1/  -
>> > > D__INSDIR__=src/mat/impls/aij/seq/seqcusp/"  aijcusp.cu
>> > > <built-in>(2): error: "__STDC_HOSTED__" is predefined; attempted
>> redefinition ignored
>> > >
>> > > <built-in>(8): error: "__WCHAR_TYPE__" is predefined; attempted
>> redefinition ignored
>> > >
>> > > <built-in>(115): error: "__x86_64" is predefined; attempted
>> redefinition ignored
>> > >
>> > > <built-in>(116): error: "__x86_64__" is predefined; attempted
>> redefinition ignored
>> > >
>> > > <built-in>(126): error: "__linux__" is predefined; attempted
>> redefinition ignored
>> > >
>> > > <built-in>(129): error: "__unix__" is predefined; attempted
>> redefinition ignored
>> > >
>> > > <built-in>(130): error: "unix" is predefined; attempted redefinition
>> ignored
>> > >
>> > > 7 errors detected in the compilation of
>> "/tmp/tmpxft_00003334_00000000-7_aijcusp.cpp3.i".
>> >
>>
>>
>


-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
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