GetTiling

Function Usage

Obtains tiling parameters.

Prototype

      
           int64_t GetTiling(optiling::TCubeTiling &tiling)

      
           int64_t GetTiling(TCubeTiling &tiling)

Parameters

**Table 1** Parameters
Parameter	Input/Output	Description
tiling	Output	Tiling structure that stores the final tiling result. For details about the TCubeTiling structure, see Table 1. optiling::TCubeTiling: TCubeTiling structure with the optiling namespace. It is the Matmul TilingData defined on the host. TCubeTiling: TCubeTiling structure without the optiling namespace. It is the Matmul TilingData defined by the kernel, and is used together with the development mode of defining the TilingData structure using the standard C++ syntax. For details, see "Using the Standard C++ Syntax to Define TilingData". For details, see the example in atlasascendc_api_07_0870.html#EN-US_TOPIC_0000002163342801__li17840111722114.

Returns

If the return value is not -1, the tiling computation is successful. You can use the value of the tiling structure. If the return value is -1, the tiling computation fails and the tiling result cannot be used.

Precautions

None

Example

      
           auto ascendcPlatform = platform_ascendc::PlatformAscendC(context->GetPlatformInfo());
matmul_tiling::MatmulApiTiling tiling(ascendcPlatform); 
tiling.SetAType(matmul_tiling::TPosition::GM, matmul_tiling::CubeFormat::ND, matmul_tiling::DataType::DT_FLOAT16); 
tiling.SetBType(matmul_tiling::TPosition::GM, matmul_tiling::CubeFormat::ND, matmul_tiling::DataType::DT_FLOAT16);   
tiling.SetCType(matmul_tiling::TPosition::GM, matmul_tiling::CubeFormat::ND, matmul_tiling::DataType::DT_FLOAT);   
tiling.SetBiasType(matmul_tiling::TPosition::GM, matmul_tiling::CubeFormat::ND, matmul_tiling::DataType::DT_FLOAT);   
tiling.SetShape(1024, 1024, 1024);   
tiling.SetOrgShape(1024, 1024, 1024);  
tiling.SetBias(true);   
tiling.SetBufferSpace(-1, -1, -1);
optiling::TCubeTiling tilingData;   
int ret = tiling.GetTiling(tilingData);  // Obtain tiling parameters.

Parent topic: Matmul Tiling Class