[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@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".