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| /*! | |
| * \file cudalibxt.h | |
| * \brief Public header file for the NVIDIA library multi-GPU support structures | |
| */ | |
| enum cudaXtCopyType_t { | |
| LIB_XT_COPY_HOST_TO_DEVICE, | |
| LIB_XT_COPY_DEVICE_TO_HOST, | |
| LIB_XT_COPY_DEVICE_TO_DEVICE | |
| } ; | |
| typedef enum cudaXtCopyType_t cudaLibXtCopyType; | |
| enum libFormat_t { | |
| LIB_FORMAT_CUFFT = 0x0, | |
| LIB_FORMAT_UNDEFINED = 0x1 | |
| }; | |
| typedef enum libFormat_t libFormat; | |
| struct cudaXtDesc_t{ | |
| int version; //descriptor version | |
| int nGPUs; //number of GPUs | |
| int GPUs[MAX_CUDA_DESCRIPTOR_GPUS]; //array of device IDs | |
| void *data[MAX_CUDA_DESCRIPTOR_GPUS]; //array of pointers to data, one per GPU | |
| size_t size[MAX_CUDA_DESCRIPTOR_GPUS]; //array of data sizes, one per GPU | |
| void *cudaXtState; //opaque CUDA utility structure | |
| }; | |
| typedef struct cudaXtDesc_t cudaXtDesc; | |
| struct cudaLibXtDesc_t{ | |
| int version; //descriptor version | |
| cudaXtDesc *descriptor; //multi-GPU memory descriptor | |
| libFormat library; //which library recognizes the format | |
| int subFormat; //library specific enumerator of sub formats | |
| void *libDescriptor; //library specific descriptor e.g. FFT transform plan object | |
| }; | |
| typedef struct cudaLibXtDesc_t cudaLibXtDesc; | |