OpenBLAS/kernel/generic/gemm_small_matrix_kernel_tn.c

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#include "common.h"

#ifdef B0
int CNAME(BLASLONG M, BLASLONG N, BLASLONG K, IFLOAT * A, BLASLONG lda, FLOAT alpha, IFLOAT * B, BLASLONG ldb, IFLOAT * C, BLASLONG ldc)
#else
int CNAME(BLASLONG M, BLASLONG N, BLASLONG K, IFLOAT * A, BLASLONG lda, FLOAT alpha, IFLOAT * B, BLASLONG ldb, FLOAT beta, IFLOAT * C, BLASLONG ldc)
#endif
{
	//naive implemtation
	//Column major

	BLASLONG i,j,k;
	FLOAT result=0.0;

	for(i=0; i<M; i++){
		for(j=0; j<N; j++){
			result=0.0;
			for(k=0; k<K; k++){
				result += A[i*lda+k] * B[k+j*ldb];
			}
#ifdef B0
			C[i+j*ldc]=alpha * result;
#else
			C[i+j*ldc]=C[i+j*ldc] * beta + alpha * result;
#endif
		}
	}

	return 0;
}