pub unsafe extern "C" fn cudnnFindConvolutionBackwardFilterAlgorithm(
handle: *mut cudnnContext,
xDesc: *mut cudnnTensorStruct,
dyDesc: *mut cudnnTensorStruct,
convDesc: *mut cudnnConvolutionStruct,
dwDesc: *mut cudnnFilterStruct,
requestedAlgoCount: i32,
returnedAlgoCount: *mut i32,
perfResults: *mut cudnnConvolutionBwdFilterAlgoPerfStruct
) -> cudnnStatus_t