SetBatchInfoForNormal

Function Usage

Sets the M, N, and K axes and the batch sizes of matrix A and matrix B. In the NORMAL layout, before calling IterateBatch or IterateNBatch, you need to call this API to set the M, N, and K axes of matrix A and matrix B in the tiling implementation on the host.

Prototype

int32_t SetBatchInfoForNormal(int32_t batchA, int32_t batchB, int32_t m, int32_t n, int32_t k)

Parameters

**Table 1** Parameters
Parameter	Input/Output	Description
batchA	Input	Number of batches of matrix A
batchB	Input	Number of batches of matrix B
m	Input	M-axis information of matrix A
n	Input	N-axis information of matrix B
k	Input	K-axis information of matrix A/B

Returns

-1: setting failed; 0: setting succeeded.

Restrictions

In the NORMAL layout, before calling IterateBatch or IterateNBatch, you need to call this API to set the M, N, and K axes of matrix A and matrix B in the tiling implementation on the host.

Examples

auto ascendcPlatform = platform_ascendc::PlatformAscendC(context->GetPlatformInfo());
matmul_tiling::MultiCoreMatmulTiling tiling(ascendcPlatform);   
int32_t M = 32;
int32_t N = 256;
int32_t K = 64;
tiling.SetDim(1);
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);

constexpr int32_t BATCH_NUM = 3;
tiling.SetBatchInfoForNormal(BATCH_NUM, BATCH_NUM, M, N, K);  // Set the matrix layout.
tiling.SetBufferSpace(-1, -1, -1);

optiling::TCubeTiling tilingData;
int ret = tiling.GetTiling(tilingData);

Parent topic: Matmul Tiling