C++ (Cpp) ATL_getri Examples

Example #1

File: ATL_f77wrap_getri.c Project: onenoc/QuantSoftwareToolkit

void F77WRAP_GETRI(const F77_INTEGER *N, TYPE *A, const F77_INTEGER *lda,
                   const F77_INTEGER *ipiv0, TYPE *work, F77_INTEGER *lwork,
                   F77_INTEGER *info)
{
   const int n = *N;
   int *ipiv=NULL;
   int i, lwrk = *lwork;

   if (lwrk != -1)
   {
      ipiv = malloc(n*sizeof(int));
      ATL_assert(ipiv);
      for (i=0; i != n; i++) ipiv[i] = ipiv0[i] - 1;
   }
   *info = ATL_getri(AtlasColMajor, *N, A, *lda, ipiv, work, &lwrk);
   if (work) *work = lwrk;
   else if (*lwork == -1)
      ATL_xerbla(5, __FILE__,
                 "For workspace query, workspace cannot be NULL\n");
   if (ipiv) free(ipiv);
}

Example #2

File: clapack_sgetri.c Project: apollos/atlas

int clapack_sgetri(const enum CBLAS_ORDER Order, const int N, float *A,
                   const int lda, const int *ipiv)
{
   int ierr=0, lwrk;
   int Mjoin(PATL,GetNB)();
   void *vp;

   lwrk = Mjoin(PATL,GetNB)();
   if (lwrk <= N) lwrk *= N;
   else lwrk = N*N;
   vp = malloc(ATL_Cachelen + ATL_MulBySize(lwrk));
   if (vp)
   {
      ierr = ATL_getri(Order, N, A, lda, ipiv, ATL_AlignPtr(vp), &lwrk);
      free(vp);
   }
   else
   {
      cblas_xerbla(7, "clapack_sgetri",
                   "Cannot allocate workspace of %d\n", lwrk);
      return(-7);
   }
   return(ierr);
}