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". >
