[Bf-committers] Building CUDA in blenkernel

[Sergey Sharybin]

Hi.

It's either path to seqeffects is wrong (missing intern/ ?) or file is
missing. In any case for such kind of help it's usually much more helpful
to provide patch instead of describing the changes.

On Sun, May 3, 2015 at 10:16 PM, John Peter Yamauchi <jpyamauchi at gmail.com>
wrote:

> Hi,
>
> I'm trying to build a CUDA file in the blenkernel directory.  So far when I
> execute "make" it will print "No rule to make target
> 'blender-git/blender/source/blender/blenkernel/seqeffects.cu', needed by
> 'source/blender/blenkernel/kernel_sm_20.cubin'. Stop."
>
> I copied the cmake code from blender/intern/cycles/kernel/CMakeFiles.txt,
> stuck it at the end of the
> blender/source/blender/blenkernel/CMakeFiles.txt, and made some
> adjustments:
>
>
> find_package(CUDA)
>
> # 32 bit or 64 bit
> if("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
>     set(CUDA_BITS 64)
> else()
>     set(CUDA_BITS 32)
> endif()
>
> # CUDA version
> execute_process (COMMAND ${CUDA_NVCC_EXECUTABLE} "--version"
> OUTPUT_VARIABLE NVCC_OUT)
> string(REGEX REPLACE ".*release ([0-9]+)\\.([0-9]+).*" "\\1"
> CUDA_VERSION_MAJOR ${NVCC_OUT})
> string(REGEX REPLACE ".*release ([0-9]+)\\.([0-9]+).*" "\\2"
> CUDA_VERSION_MINOR ${NVCC_OUT})
> set(CUDA_VERSION "${CUDA_VERSION_MAJOR}${CUDA_VERSION_MINOR}")
>
> # warn for other versions
> if(CUDA_VERSION MATCHES "65")
> else()
>     message(WARNING
>         "CUDA version ${CUDA_VERSION_MAJOR}.${CUDA_VERSION_MINOR} detected,
> "
>         "build may succeed but only CUDA 6.5 is officially supported")
> endif()
>
> # build for each arch
> set(cuda_sources seqeffects.cu ${SRC_HEADERS})
> set(cuda_cubins)
>
>
> set(cuda_extra_flags "")
> set(cuda_cubin kernel_${arch}.cubin)
>
> set(cuda_debug_flags "")
>
> set(cuda_version_flags "-D__KERNEL_CUDA_VERSION__=${CUDA_VERSION}")
> set(cuda_math_flags "--use_fast_math")
>
> add_custom_command(
>     OUTPUT ${cuda_cubin}
>     COMMAND ${CUDA_NVCC_EXECUTABLE}
>         -arch=${arch}
>         -m${CUDA_BITS}
>         --cubin ${CMAKE_CURRENT_SOURCE_DIR}/seqeffects.cu
>         -o ${CMAKE_CURRENT_BINARY_DIR}/${cuda_cubin}
>         --ptxas-options="-v"
>         ${cuda_arch_flags}
>         ${cuda_version_flags}
>         ${cuda_math_flags}
>         ${cuda_extra_flags}
>         ${cuda_debug_flags}
>         -I${CMAKE_CURRENT_SOURCE_DIR}/../util
>             -I${CMAKE_CURRENT_SOURCE_DIR}/svm
>             -DCCL_NAMESPACE_BEGIN=
>             -DCCL_NAMESPACE_END=
>             -DNVCC
>
>     DEPENDS ${cuda_sources})
>
> list(APPEND cuda_cubins ${cuda_cubin})
>
> add_custom_target(vse_acceleration ALL DEPENDS ${cuda_cubins})
>
>
> ## Warnings as errors, this is too strict!
> #if(MSVC)
> #    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /WX")
> #endif()
>
> blender_add_lib(bf_blenkernel "${SRC}" "${INC}" "${INC_SYS}")
>
> add_dependencies(bf_blenkernel vse_acceleration)
>
>
> What am I doing wrong?
>
>
>
> Thanks!
>
> jpyams
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>



-- 
With best regards, Sergey Sharybin