[Bf-committers] Building CUDA in blenkernel

[Antony Riakiotakis]

This error is realy weird, blenkernel has nothing to do at all with
the cycles kernel. This file is sequencer related and we don't really
use CUDA. Is this a custom branch or is this master?

On 4 May 2015 at 10:11, Sergey Sharybin <sergey.vfx at gmail.com> wrote:
> 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
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