CODEWITHSUNDEEP
cuda
user1193538
user1193538

Reputation: 103

CUDA-NPP sample code

Can anyone tell me how to compile the boxFilter program found on the CUDA-NPP sample code site ? 'make' gives an error about common_npplib.mk - I don't find common_npplib.mk but it is included in the makefile. Anyway, I tried this :

g++ -I../../common/UtilNPP -I../../../shared/inc -I../../common/FreeImage -I/usr/global/cuda/4.0/cuda/include -L/usr/global/cuda/4.0/cuda/lib64 -L../../common/FreeImage/lib/linux -L../../../shared/lib -lnpp -lcudart -lUtilNPP_x86_64 -lfreeimage64 -o bf boxFilterNPP.cpp

This leads to errors, again. It can't find -lUtilNPP_x86_64 and -lfreeimage64. Compiling without these 2 gives a lot of errors like undefined reference to npp::Image::Image() etc. Help needed asap, thanks !

Upvotes: 1

Views: 2811

Answers (2)

bill b
bill b

Reputation: 11

I downloaded the tarball you allude to, first building the static UtilNPP lib. You'll need to edit the CUDA_INSTALL_PATH variable eg., lines 45-47 of defines.mk in the appropriate directory:

#ifdef cuda-install
    CUDA_INSTALL_PATH := /usr/global/cuda/4.1/cuda
#endif

I then wrote/sourced the following build script from the directory containing the source code :

module load cuda/4.1

shlib="-L/usr/global/cuda/4.1/cuda/lib64/ -lnpp"
inc="-I../../common/UtilNPP -I../../common/FreeImage/include -I../../../shared/inc    -I/usr/global/cuda/4.1/cuda/include/"
stlib="../../common/lib/libUtilNPP_x86_64.a ../../common/FreeImage/lib/linux /libfreeimage64.a"

nvcc $inc $stlib $shlib boxFilterNPP.cpp -o foo.x

./foo.x ran fine; you will of course need to change the cuda install path to suit your installation, and if you don't use a module system, make sure your LD_LIBRARY_PATH is correct etc etc hope this helps

Upvotes: 1

harrism
harrism

Reputation: 27809

I have reproduced the error you found. I assume you downloaded the individual boxFilter sample.

That archive is definitely missing common_npplib.mk. I will report this error to the CUDA SDK team and have it corrected. In the mean time, I think if you download the entire SDK rather than the individual samples, you will have better luck compiling.

Visit http://developer.nvidia.com/cuda-toolkit-41 and look for "GPU Computing SDK Downloads", and download the appropriate one for your OS. I suggest you follow the instructions in the readme for how to build the samples before going directly to boxFilter and typing make -- it may depend on building some of the utility libraries first.

Upvotes: 2

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