Documentation

EnableMultiCoreSplitK

Function Usage

In the multi-core scenario, this API is used to enable K-axis splitting. If this API is not called, the K axis is not split by default. This API is used before the GetTiling API is called.

Prototype

1
void EnableMultiCoreSplitK(bool flag)

Parameters

Table 1 Parameters

Parameter

Input/Output

Description

flag

Input

Whether to enable K-axis splitting.

  • true: K-axis splitting is enabled.
  • false: K-axis splitting is disabled.

Returns

None

Precautions

None

Example

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auto ascendcPlatform = platform_ascendc::PlatformAscendC(context->GetPlatformInfo())
matmul_tiling::MultiCoreMatmulTiling tiling(ascendcPlatform);  
tiling->SetDim(useCoreNums);
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(M, N, K);
tiling->SetOrgShape(M, N, K);
tiling->SetBias(true);
tiling->SetBufferSpace(-1, -1, -1);
tiling->EnableMultiCoreSplitK(true);

optiling::TCubeTiling tilingData;
int ret = tiling.GetTiling(tilingData);
Parent topic: Matmul Tiling Class