通常，您不能分配大于CL_DEVICE_MAX_MEM_ALLOC_SIZE的缓冲区，该缓冲区通常小于CL_DEVICE_GLOBAL_MEM_SIZE.我不知道如何在不将主机内存切成多个cl缓冲区的情况下规避此限制.

in general you can't allocate a buffer larger than CL_DEVICE_MAX_MEM_ALLOC_SIZE which is usually smaller as CL_DEVICE_GLOBAL_MEM_SIZE. I don't know any way how to circumvent this restriction without slicing the host memory into multiple cl buffers.