cannam@127: /*
cannam@127:  * Copyright (c) 2003, 2007-14 Matteo Frigo
cannam@127:  * Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology
cannam@127:  *
cannam@127:  * This program is free software; you can redistribute it and/or modify
cannam@127:  * it under the terms of the GNU General Public License as published by
cannam@127:  * the Free Software Foundation; either version 2 of the License, or
cannam@127:  * (at your option) any later version.
cannam@127:  *
cannam@127:  * This program is distributed in the hope that it will be useful,
cannam@127:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
cannam@127:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
cannam@127:  * GNU General Public License for more details.
cannam@127:  *
cannam@127:  * You should have received a copy of the GNU General Public License
cannam@127:  * along with this program; if not, write to the Free Software
cannam@127:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
cannam@127:  *
cannam@127:  */
cannam@127: 
cannam@127: #include "ifftw-mpi.h"
cannam@127: 
cannam@127: dtensor *XM(mkdtensor)(int rnk) 
cannam@127: {
cannam@127:      dtensor *x;
cannam@127: 
cannam@127:      A(rnk >= 0);
cannam@127: 
cannam@127: #if defined(STRUCT_HACK_KR)
cannam@127:      if (FINITE_RNK(rnk) && rnk > 1)
cannam@127: 	  x = (dtensor *)MALLOC(sizeof(dtensor) + (rnk - 1) * sizeof(ddim),
cannam@127: 				    TENSORS);
cannam@127:      else
cannam@127: 	  x = (dtensor *)MALLOC(sizeof(dtensor), TENSORS);
cannam@127: #elif defined(STRUCT_HACK_C99)
cannam@127:      if (FINITE_RNK(rnk))
cannam@127: 	  x = (dtensor *)MALLOC(sizeof(dtensor) + rnk * sizeof(ddim),
cannam@127: 				    TENSORS);
cannam@127:      else
cannam@127: 	  x = (dtensor *)MALLOC(sizeof(dtensor), TENSORS);
cannam@127: #else
cannam@127:      x = (dtensor *)MALLOC(sizeof(dtensor), TENSORS);
cannam@127:      if (FINITE_RNK(rnk) && rnk > 0)
cannam@127:           x->dims = (ddim *)MALLOC(sizeof(ddim) * rnk, TENSORS);
cannam@127:      else
cannam@127:           x->dims = 0;
cannam@127: #endif
cannam@127: 
cannam@127:      x->rnk = rnk;
cannam@127:      return x;
cannam@127: }
cannam@127: 
cannam@127: void XM(dtensor_destroy)(dtensor *sz)
cannam@127: {
cannam@127: #if !defined(STRUCT_HACK_C99) && !defined(STRUCT_HACK_KR)
cannam@127:      X(ifree0)(sz->dims);
cannam@127: #endif
cannam@127:      X(ifree)(sz);
cannam@127: }
cannam@127: 
cannam@127: void XM(dtensor_md5)(md5 *p, const dtensor *t)
cannam@127: {
cannam@127:      int i;
cannam@127:      X(md5int)(p, t->rnk);
cannam@127:      if (FINITE_RNK(t->rnk)) {
cannam@127:           for (i = 0; i < t->rnk; ++i) {
cannam@127:                const ddim *q = t->dims + i;
cannam@127:                X(md5INT)(p, q->n);
cannam@127:                X(md5INT)(p, q->b[IB]);
cannam@127:                X(md5INT)(p, q->b[OB]);
cannam@127:           }
cannam@127:      }
cannam@127: }
cannam@127: 
cannam@127: dtensor *XM(dtensor_copy)(const dtensor *sz)
cannam@127: {
cannam@127:      dtensor *x = XM(mkdtensor)(sz->rnk);
cannam@127:      int i;
cannam@127:      if (FINITE_RNK(sz->rnk))
cannam@127:           for (i = 0; i < sz->rnk; ++i)
cannam@127:                x->dims[i] = sz->dims[i];
cannam@127:      return x;
cannam@127: }
cannam@127: 
cannam@127: dtensor *XM(dtensor_canonical)(const dtensor *sz, int compress)
cannam@127: {
cannam@127:      int i, rnk;
cannam@127:      dtensor *x;
cannam@127:      block_kind k;
cannam@127: 
cannam@127:      if (!FINITE_RNK(sz->rnk))
cannam@127: 	  return XM(mkdtensor)(sz->rnk);
cannam@127:      for (i = rnk = 0; i < sz->rnk; ++i) {
cannam@127: 	  if (sz->dims[i].n <= 0)
cannam@127: 	       return XM(mkdtensor)(RNK_MINFTY);
cannam@127: 	  else if (!compress || sz->dims[i].n > 1)
cannam@127: 	       ++rnk;
cannam@127:      }
cannam@127:      x = XM(mkdtensor)(rnk);
cannam@127:      for (i = rnk = 0; i < sz->rnk; ++i) {
cannam@127: 	  if (!compress || sz->dims[i].n > 1) {
cannam@127:                x->dims[rnk].n = sz->dims[i].n;
cannam@127: 	       FORALL_BLOCK_KIND(k) {
cannam@127: 		    if (XM(num_blocks)(sz->dims[i].n, sz->dims[i].b[k]) == 1)
cannam@127: 			 x->dims[rnk].b[k] = sz->dims[i].n;
cannam@127: 		    else
cannam@127: 			 x->dims[rnk].b[k] = sz->dims[i].b[k];
cannam@127: 	       }
cannam@127: 	       ++rnk;
cannam@127: 	  }
cannam@127:      }
cannam@127:      return x;
cannam@127: }
cannam@127: 
cannam@127: int XM(dtensor_validp)(const dtensor *sz)
cannam@127: {
cannam@127:      int i;
cannam@127:      if (sz->rnk < 0) return 0;
cannam@127:      if (FINITE_RNK(sz->rnk))
cannam@127: 	  for (i = 0; i < sz->rnk; ++i)
cannam@127: 	       if (sz->dims[i].n < 0
cannam@127: 		   || sz->dims[i].b[IB] <= 0
cannam@127: 		   || sz->dims[i].b[OB] <= 0)
cannam@127: 		    return 0;
cannam@127:      return 1;
cannam@127: }
cannam@127: 
cannam@127: void XM(dtensor_print)(const dtensor *t, printer *p)
cannam@127: {
cannam@127:      if (FINITE_RNK(t->rnk)) {
cannam@127:           int i;
cannam@127:           int first = 1;
cannam@127:           p->print(p, "(");
cannam@127:           for (i = 0; i < t->rnk; ++i) {
cannam@127:                const ddim *d = t->dims + i;
cannam@127:                p->print(p, "%s(%D %D %D)",
cannam@127:                         first ? "" : " ",
cannam@127:                         d->n, d->b[IB], d->b[OB]);
cannam@127:                first = 0;
cannam@127:           }
cannam@127:           p->print(p, ")");
cannam@127:      } else {
cannam@127:           p->print(p, "rank-minfty");
cannam@127:      }
cannam@127: 
cannam@127: }