与cuda 3.5兼容的旧源代码与新的cuda版本不兼容,例如, 7.5。例如,将旧的cuda代码移植到7.5
cuda_runtime_api.cc: In function ‘cudaError_t cudaMemcpyToSymbol(const char*, const void*, size_t, size_t, cudaMemcpyKind)’:
cuda_runtime_api.cc:556:141: error: declaration of C function ‘cudaError_t cudaMemcpyToSymbol(const char*, const void*, size_t, size_t, cudaMemcpyKind)’ conflicts with
__host__ cudaError_t CUDARTAPI cudaMemcpyToSymbol(const char *symbol, const void *src, size_t count, size_t offset, enum cudaMemcpyKind kind)
^
In file included from cuda_runtime_api.cc:155:0:
/usr/local/cuda/include/cuda_runtime_api.h:4335:39: error: previous declaration ‘cudaError_t cudaMemcpyToSymbol(const void*, const void*, size_t, size_t, cudaMemcpyKind)’ here
extern __host__ cudaError_t CUDARTAPI cudaMemcpyToSymbol(const void *symbol, const void *src, size_t count, size_t offset __dv(0), enum cudaMemcpyKind kind __dv(cudaMemcpyHostToDevice));
所以说,代码中的cudaMemcpyToSymbol()与7.5实现不兼容。源代码是
__host__ cudaError_t CUDARTAPI cudaMemcpyToSymbol(const char *symbol, const void *src, size_t count, size_t offset, enum cudaMemcpyKind kind)
{....}
和7.5版本的/usr/local/cuda/include/cuda_runtime_api.h是
extern __host__ cudaError_t CUDARTAPI cudaMemcpyToSymbol(const void *symbol, const void *src, size_t count, size_t offset __dv(0), enum cudaMemcpyKind kind __dv(cudaMemcpyHostToDevice));
我该如何解决呢?
更新:错误文件中的cuda_runtime_api.cc
指向用户定义的错误文件here。
[email protected]:~/gem5-gpu/benchmarks/libcuda$ g++ -std=c++0x -O3 -g -Wall -fPIC -DCUDART_VERSION=7050 -I./ -I/usr/local/cuda/include -I../../gem5/util/m5 -c cuda_runtime_api.cc -o cuda_runtime_api.o
cuda_runtime_api.cc: In function ‘cudaError_t cudaMemcpyToSymbol(const char*, const void*, size_t, size_t, cudaMemcpyKind)’:
cuda_runtime_api.cc:556:143: error: declaration of C function ‘cudaError_t cudaMemcpyToSymbol(const char*, const void*, size_t, size_t, cudaMemcpyKind)’ conflicts with
__host__ cudaError_t CUDARTAPI cudaMemcpyToSymbol(const char *symbol, const void *src, size_t count, size_t offset , enum cudaMemcpyKind kind)
^
In file included from cuda_runtime_api.cc:155:0:
/usr/local/cuda/include/cuda_runtime_api.h:4335:39: error: previous declaration ‘cudaError_t cudaMemcpyToSymbol(const void*, const void*, size_t, size_t, cudaMemcpyKind)’ here
extern __host__ cudaError_t CUDARTAPI cudaMemcpyToSymbol(const void *symbol, const void *src, size_t count, size_t offset __dv(0), enum cudaMemcpyKind kind __dv(cudaMemcpyHostToDevice));
^
而是提供在ASCII符号的名称,只需通过符号本身。 –
对不起,我不明白。如果你的意思是我必须将'const char * symbol'改为'const void * symbol',那么这不起作用 – mahmood
而不是通过\t“a”,只需传递'a'即可。 –