Linking against cudart 32bit on 64 bit environment

[GoogleCodeExporter]

This happened while compiling simpleCUDPP example.

$ make
/usr/bin/ld: skipping incompatible /usr/local/cuda/lib/libcudart.so when
searching for -lcudart
/usr/bin/ld: skipping incompatible /usr/local/cuda/lib/libcudart.so when
searching for -lcudart
/usr/bin/ld: cannot find -lcudart
collect2: ld returned 1 exit status
make: *** [../../bin/linux/release/simpleCUDPP] Errore 1

Simple bugfix:
Change line 229 of linux_build/common.mk to
LIB       := -L$(CUDA_INSTALL_PATH)/lib64 -L$(LIBDIR) -L$(COMMONDIR)/lib
-lcuda -lcudart ${OPENGLLIB} $(PARAMGLLIB) $(CUDPPLIB) ${LIB}

Or, better, check if the arch is 64bit and link against the correct version

Original issue reported on code.google.com by condel...@gmail.com on 2 May 2010 at 8:09

[GoogleCodeExporter]

Oh, i forgot one thing.

This happened on cudpp-1.1.1

Original comment by condel...@gmail.com on 2 May 2010 at 8:10

[GoogleCodeExporter]

On a machine here, the CUDA installer seems to have created a soft link called 
"lib" 
which points to lib64.  Therefore this problem doesn't reproduce.

I'm am trying to decide whether I need to fix this or if I can rely on that 
soft link 
being there.

Original comment by harr...@gmail.com on 13 May 2010 at 12:32

• Changed state: Accepted

[GoogleCodeExporter]

Well, it shouldn't be hard to decide whether the environment is 32bit or 64bit 
and if
we are cross-compiling.

Original comment by condel...@gmail.com on 13 May 2010 at 8:23

[GoogleCodeExporter]

On my machine, the CUDA installer has created both lib and lib64, containing 
different files (presumably it has created 32 and 64 bit libraries).

Therefore the issue did exist for me (and I could not create the soft-link in 
order to bypass it).

Having just checked out the latest version from the SVN (post-1.1.1), it works 
fine - thanks!

Original comment by nbur...@gmail.com on 21 Jun 2010 at 1:58

[GoogleCodeExporter]

This should be fixed by r136.  nburles seems to confirm it, but we should 
confirm for sure before marking verified.

Original comment by harr...@gmail.com on 21 Jun 2010 at 9:05

• Changed state: Fixed