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gemm.cpp
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gemm.cpp
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#include "gemm.hpp"
void gemm_nn(size_t M, size_t N, size_t K, float ALPHA,
const float *__restrict__ A, int lda,
const float *__restrict__ B, int ldb,
float *__restrict__ C, int ldc) {
#if defined(_OPENMP)
#pragma omp parallel for schedule(static)
#endif
for (size_t i = 0; i < M; ++i) {
for (size_t k = 0; k < K; ++k) {
float A_PART = ALPHA * A[i * lda + k];
for (size_t j = 0; j < N; ++j) {
C[i * ldc + j] += A_PART * B[k * ldb + j];
}
}
}
}
void gemm_nt(size_t M, size_t N, size_t K, float ALPHA,
const float *__restrict__ A, int lda,
const float *__restrict__ B, int ldb,
float *__restrict__ C, int ldc) {
#if defined(_OPENMP)
#pragma omp parallel for schedule(static)
#endif
for (size_t i = 0; i < M; ++i) {
for (size_t j = 0; j < N; ++j) {
float sum = 0;
for (size_t k = 0; k < K; ++k) {
sum += ALPHA * A[i * lda + k] * B[j * ldb + k];
}
C[i * ldc + j] += sum;
}
}
}
void gemm_tn(size_t M, size_t N, size_t K, float ALPHA,
const float *__restrict__ A, int lda,
const float *__restrict__ B, int ldb,
float *__restrict__ C, int ldc) {
#if defined(_OPENMP)
#pragma omp parallel for schedule(static)
#endif
for (size_t i = 0; i < M; ++i) {
for (size_t k = 0; k < K; ++k) {
float A_PART = ALPHA * A[k * lda + i];
for (size_t j = 0; j < N; ++j) {
C[i * ldc + j] += A_PART * B[k * ldb + j];
}
}
}
}
void gemm_tt(size_t M, size_t N, size_t K, float ALPHA,
const float *__restrict__ A, int lda,
const float *__restrict__ B, int ldb,
float *__restrict__ C, int ldc) {
#if defined(_OPENMP)
#pragma omp parallel for schedule(static)
#endif
for (size_t i = 0; i < M; ++i) {
for (size_t j = 0; j < N; ++j) {
float sum = 0;
for (size_t k = 0; k < K; ++k) {
sum += ALPHA * A[i + k * lda] * B[k + j * ldb];
}
C[i * ldc + j] += sum;
}
}
}