[petsc-dev] nvcc -g3 error

[Ben Jamroz]

Yep, I hadn't hg updated. I have your fix now. Thanks Satish.

-Ben


On 4/12/12 11:55 AM, Satish Balay wrote:
> I had changed the default flag for a cuda build from -g3 to
> -g. Perhaps you don't have the latest petsc-dev/BuildSystem?
>
> http://petsc.cs.iit.edu/petsc/BuildSystem/rev/05b504243938
>
> BTW: The defualt opt flags can be changed with --COPTFLAGS configure
> option.
>
> Satish
>
> On Thu, 12 Apr 2012, Ben Jamroz wrote:
>
>> Hi,
>>
>> I've had trouble building a debug version of petsc-dev with nvcc. At compile
>> time I was getting the following error.
>>
>> ===============================================================
>> libfast in: /scr_0/jamroz/petsc-dev-jamroz/src/vec/vec/impls/seq/seqcusp
>> nvcc -O3 -g -g -arch=sm_20 -c --compiler-options=-g -O3 -g3 -fno-inline -O0
>> -I/scr_0/jamroz/petsc-dev-jamroz/include
>> -I/scr_0/jamroz/petsc-dev-jamroz/arch-linux2-c-debug/include
>> -I/usr/local/cuda/4.1/cuda/include -I/scr_0/jamroz/gpuPETSc/txpetscgpu/include
>> -I/scr_0/jamroz/ -I/usr/local/cuda/4.1/cuda/include/
>> -I/usr/mpi/gcc/openmpi-1.4.3/include
>> -D__INSDIR__=src/vec/vec/impls/seq/seqcusp/ veccusp.cu
>> <built-in>(1): error: "__STDC_HOSTED__" is predefined; attempted redefinition
>> ignored
>> <built-in>(1): error: "__WCHAR_TYPE__" is predefined; attempted redefinition
>> ignored
>> <built-in>(1): error: "__x86_64" is predefined; attempted redefinition ignored
>> <built-in>(1): error: "__x86_64__" is predefined; attempted redefinition
>> ignored
>> <built-in>(1): error: "__linux__" is predefined; attempted redefinition
>> ignored
>> <built-in>(1): error: "__unix__" is predefined; attempted redefinition ignored
>> <built-in>(1): error: "unix" is predefined; attempted redefinition ignored
>> 7 errors detected in the compilation of
>> "/tmp/tmpxft_00006e29_00000000-7_veccusp.cpp3.i".
>> /usr/bin/ar: veccusp.o: No such file or directory
>> ===============================================================
>>
>> It turns out that -g3 (debug level) in the --compiler-options was causing the
>> trouble. Commenting out this line in BuildSystem/config/compilerOptions.py
>> (line 24) fixed this error. According to
>> http://gcc.gnu.org/onlinedocs/gcc/Debugging-Options.html the default debug is
>> level 2.
>>
>> Just a heads up.
>>
>> -Ben
>>
>> ps. My config script was:
>>
>> ./configure --with-debugging=1 --with-mpi=1
>> --with-thrust-dir=/usr/local/cuda/4.1/cuda/include/
>> --with-cusp-dir=/scr_0/jamroz/ --CFLAGS="-g -O3" --with-cuda=1
>> --with-cuda-dir=/usr/local/cuda/4.1/cuda --CUDAFLAGS="-O3 -g"
>> --with-cudac=nvcc --with-cuda-arch=sm_20 --with-precision=double
>> --with-txpetscgpu=1 --download-txpetscgpu=no
>> --with-txpetscgpu-dir=/scr_0/jamroz/gpuPETSc/txpetscgpu
>>
>>


-- 
Ben Jamroz jamroz at txcorp.com
Tech-X Corporation
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