LAPACK 3.12.0
LAPACK: Linear Algebra PACKage

void cblas_dgemm_64  (  CBLAS_LAYOUT  layout, 
CBLAS_TRANSPOSE  TransA,  
CBLAS_TRANSPOSE  TransB,  
const int64_t  M,  
const int64_t  N,  
const int64_t  K,  
const double  alpha,  
const double *  A,  
const int64_t  lda,  
const double *  B,  
const int64_t  ldb,  
const double  beta,  
double *  C,  
const int64_t  ldc  
) 