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Bump version: 0.15.16 → 0.15.17

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88.52

/libadcc/TensorImpl/ExpressionTree.cc

//
// Copyright (C) 2020 by the adcc authors
//
// This file is part of adcc.
//
// adcc is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// adcc is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with adcc. If not, see <http://www.gnu.org/licenses/>.
//

// This needs to be the first include ... libtensor reasons
#pragma GCC visibility push(default)
#include <libtensor/expr/eval/eval_exception.h>
#pragma GCC visibility pop
//
#include "../exceptions.hh"
#include "ExpressionTree.hh"

// Change visibility of libtensor singletons to public
#pragma GCC visibility push(default)
#include <libtensor/block_tensor/btod_add.h>
#include <libtensor/block_tensor/btod_set.h>
#include <libtensor/expr/btensor/eval_btensor_double.h>
#include <libtensor/expr/btensor/impl/eval_tree_builder_btensor.h>
#include <libtensor/expr/btensor/impl/tensor_from_node.h>
#include <libtensor/expr/dag/node_add.h>
#include <libtensor/expr/dag/node_assign.h>
#include <libtensor/expr/dag/node_ident.h>
#include <libtensor/expr/dag/node_transform.h>
#include <libtensor/expr/iface/node_ident_any_tensor.h>
#include <libtensor/expr/opt/opt_add_before_transf.h>
#include <libtensor/expr/opt/opt_merge_adjacent_add.h>
#include <libtensor/expr/opt/opt_merge_adjacent_transf.h>
#include <libtensor/expr/opt/opt_merge_equiv_ident.h>
#include <libtensor/linalg/BlasSequential.h>
#include <libtensor/symmetry/so_copy.h>
#pragma GCC visibility pop

namespace libadcc {
namespace lt = libtensor;

template <size_t N>
lt::expr::expr_rhs<N, scalar_type> ExpressionTree::attach_letters(
      const std::vector<std::shared_ptr<const lt::letter>>& letters) const {

  if (N != permutation.size()) {
    throw runtime_error("Internal error: Mismatch between permutation.size() == " +
                        std::to_string(permutation.size()) +
                        " and expr_rhs dimensionality " + std::to_string(N) + ".");
  }
  if (letters.size() != permutation.size()) {
    throw runtime_error("Internal error: Mismatch between permutation.size() == " +
                        std::to_string(permutation.size()) + " and letters size " +
                        std::to_string(letters.size()) + ".");
  }

  // The permutation is to be applied *after* the expression is evaluated,
  // so these letters need to pick up the inverse permutation.
  std::vector<const lt::letter*> let_ptrs;
  for (size_t i = 0; i < N; ++i) {
    auto it = std::find(permutation.begin(), permutation.end(), i);
    if (it == permutation.end()) {
      throw runtime_error("Internal error: Could not build inverse permutation");
    }
    const size_t inv_i = static_cast<size_t>(it - permutation.begin());

    let_ptrs.push_back(letters[inv_i].get());
  }

  // This copies both the expression as well as the letters to internal storage.
  return lt::expr::expr_rhs<N, scalar_type>(*tree_ptr, let_ptrs);
}

namespace {
lt::expr::expr_tree optimise_tree(const lt::expr::expr_tree& in) {
  lt::expr::expr_tree ret(in);
  lt::expr::opt_merge_equiv_ident(ret);
  lt::expr::opt_merge_adjacent_transf(ret);
  lt::expr::opt_add_before_transf(ret);
  lt::expr::opt_merge_adjacent_transf(ret);
  lt::expr::opt_merge_adjacent_add(ret);
  return ret;
}

bool is_linear_combination(const lt::expr::expr_tree& assigntree) {
  using namespace libtensor::expr;

  auto is_valid_summand = [&assigntree](size_t id) {
    if (assigntree.get_vertex(id).check_type<node_ident>()) return true;

    if (assigntree.get_vertex(id).check_type<node_transform_base>()) {
      const node_transform<scalar_type>& nt =
            assigntree.get_vertex(id).template recast_as<node_transform<scalar_type>>();
      for (size_t i = 0; i < nt.get_perm().size(); ++i) {
        if (i != nt.get_perm()[i]) return false;  // Need identity permutation
      }

      // Only one subnode for transformation.
      if (assigntree.get_edges_out(id).size() != 1) return false;
      const size_t tid = assigntree.get_edges_out(id)[0];

      if (assigntree.get_vertex(tid).check_type<node_ident>()) {
        return true;
      }
    }
    return false;
  };

  bool found_add = false;
  for (auto it = assigntree.begin(); it != assigntree.end(); ++it) {
    if (assigntree.get_vertex(it).check_type<node_add>()) {
      if (found_add) return false;  // There should be exactly one add
      auto add_edges = assigntree.get_edges_out(it);
      for (auto aed = add_edges.begin(); aed != add_edges.end(); ++aed) {
        if (!is_valid_summand(*aed)) return false;
      }
      found_add = true;
    } else if (assigntree.get_vertex(it).check_type<node_assign>()) {
      if (assigntree.get_root() != assigntree.get_id(it)) return false;
    } else if (!is_valid_summand(assigntree.get_id(it))) {
      return false;
    }
  }

  return found_add;
}

template <size_t N>
void evaluate_linear_combination(const lt::expr::expr_tree& assigntree,
                                 lt::btensor<N, scalar_type>& result, bool add) {
  using namespace libtensor::expr;
  if (!is_linear_combination(assigntree)) {
    throw invalid_argument(
          "evaluate_linear_combination got a tree which is not a linear combination "
          "tree");
  }

  lt::btensor<N, scalar_type>* first_btensor = nullptr;
  std::unique_ptr<lt::btod_add<N>> operator_ptr;
  auto add_summand = [&assigntree, &operator_ptr, &first_btensor](size_t id) {
    eval_btensor_double::btensor_from_node<N, scalar_type> extract(assigntree, id);
    auto& btensor = dynamic_cast<lt::btensor<N, scalar_type>&>(extract.get_btensor());
    // Notice: No permutation allowed here
    const lt::permutation<N>& perm = extract.get_transf().get_perm();
    if (!perm.is_identity()) {
      throw runtime_error("Internal error: Caught non-identity permutation.");
    }

    const double c = extract.get_transf().get_scalar_tr().get_coeff();
    if (!operator_ptr) {
      // Operator not yet set up -> do so with first summand
      operator_ptr.reset(new lt::btod_add<N>(btensor, c));
      first_btensor = &btensor;
    } else {
      // Operator is set up -> just add summand
      operator_ptr->add_op(btensor, c);
    }
  };

  auto root_edges = assigntree.get_edges_out(assigntree.get_root());
  for (auto it = root_edges.begin(); it != root_edges.end(); ++it) {
    if (assigntree.get_vertex(*it).check_type<node_add>()) {
      auto add_edges = assigntree.get_edges_out(*it);
      for (auto aed = add_edges.begin(); aed != add_edges.end(); ++aed) {
        add_summand(*aed);
      }
      break;  // Just one add tree
    }
  }

  // Copy symmmetry over
  if (first_btensor == nullptr) {
    throw runtime_error("Internal error: Got nullptr where set pointer was expected.");
  }
  lt::block_tensor_ctrl<N, scalar_type> ctrl_to(result);
  lt::block_tensor_ctrl<N, scalar_type> ctrl_from(*first_btensor);
  lt::so_copy<N, scalar_type>(ctrl_from.req_const_symmetry())
        .perform(ctrl_to.req_symmetry());

  if (!add) lt::btod_set<N>(0.0).perform(result);
  operator_ptr->perform(result, 1.0);
}

/** Return the expression tree resulting from assigning tree to
 *  the passed result. Optionally the assignment adds elements instead of setting them.
 */
template <size_t N>
libtensor::expr::expr_tree assignment_tree(const ExpressionTree& tree,
                                           libtensor::btensor<N, scalar_type>& result,
                                           bool add) {
  using namespace libtensor::expr;
  if (add) throw not_implemented_error("add = true not tested so far");

  // Form the RHS of the assignment
  std::vector<std::shared_ptr<const lt::letter>> label_safe;
  for (size_t i = 0; i < N; ++i) {
    label_safe.push_back(std::make_shared<lt::letter>());
  }
  expr_rhs<N, scalar_type> rhs = tree.attach_letters<N>(label_safe);

  // Form the labels for libtensor
  std::vector<const lt::letter*> label_unsafe;
  for (size_t i = 0; i < N; ++i) {
    label_unsafe.push_back(label_safe[i].get());
  }
  label<N> label(label_unsafe);

  // Build the assignment tree, starting from the assignment node
  node_assign nassign(N, add);
  expr_tree assigntree(nassign);
  expr_tree::node_id_t id = assigntree.get_root();
  node_ident_any_tensor<N, scalar_type> nresult(result);  // LHS of assignment
  assigntree.add(id, nresult);

  // Check if permutations are needed
  lt::permutation<N> px = label.permutation_of(rhs.get_label());
  if (!px.is_identity()) {
    std::vector<size_t> perm(N);
    for (size_t i = 0; i < N; i++) perm[i] = px[i];

    node_transform<scalar_type> n3(perm, lt::scalar_transf<scalar_type>());
    id = assigntree.add(id, n3);
  }

  // Add permuted or unpermuted RHS
  assigntree.add(id, rhs.get_expr());

  return assigntree;
}
}  // namespace

/** Return an optimised form of the internal expression tree */
lt::expr::expr_tree ExpressionTree::optimised_tree() { return optimise_tree(*tree_ptr); }

template <size_t N>
libtensor::expr::expr_tree ExpressionTree::evaluation_tree(
      libtensor::btensor<N, scalar_type>& result, bool add) const {
  // This does exactly the same stuff as
  // lt::expr::eval_btensor<double>().evaluate(assigntree) except doing the evaluation.
  lt::expr::expr_tree assigntree = assignment_tree(*this, result, add);
  lt::expr::eval_tree_builder_btensor bld(assigntree);
  bld.build();
  return bld.get_tree();
}

template <size_t N>
void ExpressionTree::evaluate_to(lt::btensor<N, scalar_type>& result, bool add) const {
  lt::expr::expr_tree assigntree = optimise_tree(assignment_tree(*this, result, add));

  lt::BlasSequential seq;  // Switch to sequential BLAS for evaluations

  if (is_linear_combination(assigntree)) {
    evaluate_linear_combination(assigntree, result, add);
    return;
  }

  // Normal evaluation via libtensor
  lt::expr::eval_btensor<double>().evaluate(assigntree);
}

//
// Explicit instantiation
//

#define INSTANTIATE(DIM)                                               \
  template void ExpressionTree::evaluate_to(                           \
        libtensor::btensor<DIM, scalar_type>& result, bool add) const; \
                                                                       \
  template libtensor::expr::expr_tree ExpressionTree::evaluation_tree( \
        libtensor::btensor<DIM, scalar_type>& result, bool add) const;

INSTANTIATE(1)
INSTANTIATE(2)
INSTANTIATE(3)
INSTANTIATE(4)

#undef INSTANTIATE

}  // namespace libadcc

1	//
2	// Copyright (C) 2020 by the adcc authors
3	//
4	// This file is part of adcc.
5	//
6	// adcc is free software: you can redistribute it and/or modify
7	// it under the terms of the GNU General Public License as published
8	// by the Free Software Foundation, either version 3 of the License, or
9	// (at your option) any later version.
10	//
11	// adcc is distributed in the hope that it will be useful,
12	// but WITHOUT ANY WARRANTY; without even the implied warranty of
13	// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14	// GNU General Public License for more details.
15	//
16	// You should have received a copy of the GNU General Public License
17	// along with adcc. If not, see <http://www.gnu.org/licenses/>.
18	//
19
20	// This needs to be the first include ... libtensor reasons
21	#pragma GCC visibility push(default)
22	#include <libtensor/expr/eval/eval_exception.h>
23	#pragma GCC visibility pop
24	//
25	#include "../exceptions.hh"
26	#include "ExpressionTree.hh"
27
28	// Change visibility of libtensor singletons to public
29	#pragma GCC visibility push(default)
30	#include <libtensor/block_tensor/btod_add.h>
31	#include <libtensor/block_tensor/btod_set.h>
32	#include <libtensor/expr/btensor/eval_btensor_double.h>
33	#include <libtensor/expr/btensor/impl/eval_tree_builder_btensor.h>
34	#include <libtensor/expr/btensor/impl/tensor_from_node.h>
35	#include <libtensor/expr/dag/node_add.h>
36	#include <libtensor/expr/dag/node_assign.h>
37	#include <libtensor/expr/dag/node_ident.h>
38	#include <libtensor/expr/dag/node_transform.h>
39	#include <libtensor/expr/iface/node_ident_any_tensor.h>
40	#include <libtensor/expr/opt/opt_add_before_transf.h>
41	#include <libtensor/expr/opt/opt_merge_adjacent_add.h>
42	#include <libtensor/expr/opt/opt_merge_adjacent_transf.h>
43	#include <libtensor/expr/opt/opt_merge_equiv_ident.h>
44	#include <libtensor/linalg/BlasSequential.h>
45	#include <libtensor/symmetry/so_copy.h>
46	#pragma GCC visibility pop
47
48	namespace libadcc {
49	namespace lt = libtensor;
50
51	template <size_t N>
52	lt::expr::expr_rhs<N, scalar_type> ExpressionTree::attach_letters(	2,076,184✔
53	const std::vector<std::shared_ptr<const lt::letter>>& letters) const {
54
55	if (N != permutation.size()) {	2,076,184✔
56	throw runtime_error("Internal error: Mismatch between permutation.size() == " +	×
57	std::to_string(permutation.size()) +
58	" and expr_rhs dimensionality " + std::to_string(N) + ".");
59	}
60	if (letters.size() != permutation.size()) {	2,076,184✔
61	throw runtime_error("Internal error: Mismatch between permutation.size() == " +	×
62	std::to_string(permutation.size()) + " and letters size " +
63	std::to_string(letters.size()) + ".");
64	}
65
66	// The permutation is to be applied after the expression is evaluated,
67	// so these letters need to pick up the inverse permutation.
68	std::vector<const lt::letter*> let_ptrs;	2,076,184✔
69	for (size_t i = 0; i < N; ++i) {	8,294,608✔
70	auto it = std::find(permutation.begin(), permutation.end(), i);	6,218,424✔
71	if (it == permutation.end()) {	6,218,424✔
72	throw runtime_error("Internal error: Could not build inverse permutation");	×
73	}
74	const size_t inv_i = static_cast<size_t>(it - permutation.begin());	6,218,424✔
75
76	let_ptrs.push_back(letters[inv_i].get());	6,218,424✔
77	}
78
79	// This copies both the expression as well as the letters to internal storage.
80	return lt::expr::expr_rhs<N, scalar_type>(*tree_ptr, let_ptrs);	4,152,368✔
81	}	2,076,184✔
82
83	namespace {
84	lt::expr::expr_tree optimise_tree(const lt::expr::expr_tree& in) {	200,845✔
85	lt::expr::expr_tree ret(in);	200,845✔
86	lt::expr::opt_merge_equiv_ident(ret);	200,845✔
87	lt::expr::opt_merge_adjacent_transf(ret);	200,845✔
88	lt::expr::opt_add_before_transf(ret);	200,845✔
89	lt::expr::opt_merge_adjacent_transf(ret);	200,845✔
90	lt::expr::opt_merge_adjacent_add(ret);	200,845✔
91	return ret;	200,845✔
92	}	×
93
94	bool is_linear_combination(const lt::expr::expr_tree& assigntree) {	214,493✔
95	using namespace libtensor::expr;
96
97	auto is_valid_summand = [&assigntree](size_t id) {	1,296,941✔
98	if (assigntree.get_vertex(id).check_type<node_ident>()) return true;	578,298✔
99
100	if (assigntree.get_vertex(id).check_type<node_transform_base>()) {	236,315✔
101	const node_transform<scalar_type>& nt =
102	assigntree.get_vertex(id).template recast_as<node_transform<scalar_type>>();	165,210✔
103	for (size_t i = 0; i < nt.get_perm().size(); ++i) {	491,732✔
104	if (i != nt.get_perm()[i]) return false; // Need identity permutation	386,026✔
105	}
106
107	// Only one subnode for transformation.
108	if (assigntree.get_edges_out(id).size() != 1) return false;	105,706✔
109	const size_t tid = assigntree.get_edges_out(id)[0];	105,706✔
110
111	if (assigntree.get_vertex(tid).check_type<node_ident>()) {	105,706✔
112	return true;	83,742✔
113	}
114	}
115	return false;	93,069✔
116	};	214,493✔
117
118	bool found_add = false;	214,493✔
119	for (auto it = assigntree.begin(); it != assigntree.end(); ++it) {	820,211✔
120	if (assigntree.get_vertex(it).check_type<node_add>()) {	758,291✔
121	if (found_add) return false; // There should be exactly one add	133,024✔
122	auto add_edges = assigntree.get_edges_out(it);	80,160✔
123	for (auto aed = add_edges.begin(); aed != add_edges.end(); ++aed) {	141,956✔
124	if (!is_valid_summand(*aed)) return false;	114,660✔
125	}
126	found_add = true;	27,296✔
127	} else if (assigntree.get_vertex(it).check_type<node_assign>()) {	758,291✔
128	if (assigntree.get_root() != assigntree.get_id(it)) return false;	214,493✔
129	} else if (!is_valid_summand(assigntree.get_id(it))) {	463,638✔
130	return false;	99,709✔
131	}
132	}
133
134	return found_add;	61,920✔
135	}
136
137	template <size_t N>
138	void evaluate_linear_combination(const lt::expr::expr_tree& assigntree,	13,648✔
139	lt::btensor<N, scalar_type>& result, bool add) {
140	using namespace libtensor::expr;
141	if (!is_linear_combination(assigntree)) {	13,648✔
142	throw invalid_argument(	×
143	"evaluate_linear_combination got a tree which is not a linear combination "
144	"tree");
145	}
146
147	lt::btensor<N, scalar_type>* first_btensor = nullptr;	13,648✔
148	std::unique_ptr<lt::btod_add<N>> operator_ptr;	13,648✔
149	auto add_summand = [&assigntree, &operator_ptr, &first_btensor](size_t id) {	41,870✔
150	eval_btensor_double::btensor_from_node<N, scalar_type> extract(assigntree, id);	28,222✔
151	auto& btensor = dynamic_cast<lt::btensor<N, scalar_type>&>(extract.get_btensor());	28,222✔
152	// Notice: No permutation allowed here
153	const lt::permutation<N>& perm = extract.get_transf().get_perm();	28,222✔
154	if (!perm.is_identity()) {	28,222✔
155	throw runtime_error("Internal error: Caught non-identity permutation.");	×
156	}
157
158	const double c = extract.get_transf().get_scalar_tr().get_coeff();	28,222✔
159	if (!operator_ptr) {	28,222✔
160	// Operator not yet set up -> do so with first summand
161	operator_ptr.reset(new lt::btod_add<N>(btensor, c));	13,648✔
162	first_btensor = &btensor;	13,648✔
163	} else {
164	// Operator is set up -> just add summand
165	operator_ptr->add_op(btensor, c);	14,574✔
166	}
167	};
168
169	auto root_edges = assigntree.get_edges_out(assigntree.get_root());	13,648✔
170	for (auto it = root_edges.begin(); it != root_edges.end(); ++it) {	27,296✔
171	if (assigntree.get_vertex(*it).check_type<node_add>()) {	27,296✔
172	auto add_edges = assigntree.get_edges_out(*it);	13,648✔
173	for (auto aed = add_edges.begin(); aed != add_edges.end(); ++aed) {	41,870✔
174	add_summand(*aed);	28,222✔
175	}
176	break; // Just one add tree	13,648✔
177	}	13,648✔
178	}
179
180	// Copy symmmetry over
181	if (first_btensor == nullptr) {	13,648✔
182	throw runtime_error("Internal error: Got nullptr where set pointer was expected.");	×
183	}
184	lt::block_tensor_ctrl<N, scalar_type> ctrl_to(result);	13,648✔
185	lt::block_tensor_ctrl<N, scalar_type> ctrl_from(*first_btensor);	13,648✔
186	lt::so_copy<N, scalar_type>(ctrl_from.req_const_symmetry())	13,648✔
187	.perform(ctrl_to.req_symmetry());	13,648✔
188
189	if (!add) lt::btod_set<N>(0.0).perform(result);	13,648✔
190	operator_ptr->perform(result, 1.0);	13,648✔
191	}	13,648✔
192
193	/** Return the expression tree resulting from assigning tree to
194	* the passed result. Optionally the assignment adds elements instead of setting them.
195	*/
196	template <size_t N>
197	libtensor::expr::expr_tree assignment_tree(const ExpressionTree& tree,	200,845✔
198	libtensor::btensor<N, scalar_type>& result,
199	bool add) {
200	using namespace libtensor::expr;
201	if (add) throw not_implemented_error("add = true not tested so far");	200,845✔
202
203	// Form the RHS of the assignment
204	std::vector<std::shared_ptr<const lt::letter>> label_safe;	200,845✔
205	for (size_t i = 0; i < N; ++i) {	753,875✔
206	label_safe.push_back(std::make_shared<lt::letter>());	553,030✔
207	}
208	expr_rhs<N, scalar_type> rhs = tree.attach_letters<N>(label_safe);	200,845✔
209
210	// Form the labels for libtensor
211	std::vector<const lt::letter*> label_unsafe;	200,845✔
212	for (size_t i = 0; i < N; ++i) {	753,875✔
213	label_unsafe.push_back(label_safe[i].get());	553,030✔
214	}
215	label<N> label(label_unsafe);	200,845✔
216
217	// Build the assignment tree, starting from the assignment node
218	node_assign nassign(N, add);	200,845✔
219	expr_tree assigntree(nassign);	200,845✔
220	expr_tree::node_id_t id = assigntree.get_root();	200,845✔
221	node_ident_any_tensor<N, scalar_type> nresult(result); // LHS of assignment	200,845✔
222	assigntree.add(id, nresult);	200,845✔
223
224	// Check if permutations are needed
225	lt::permutation<N> px = label.permutation_of(rhs.get_label());	200,845✔
226	if (!px.is_identity()) {	200,845✔
227	std::vector<size_t> perm(N);	55,522✔
228	for (size_t i = 0; i < N; i++) perm[i] = px[i];	207,630✔
229
230	node_transform<scalar_type> n3(perm, lt::scalar_transf<scalar_type>());	55,522✔
231	id = assigntree.add(id, n3);	55,522✔
232	}	55,522✔
233
234	// Add permuted or unpermuted RHS
235	assigntree.add(id, rhs.get_expr());	200,845✔
236
237	return assigntree;	401,690✔
238	}	200,845✔
239	} // namespace
240
241	/** Return an optimised form of the internal expression tree */
242	lt::expr::expr_tree ExpressionTree::optimised_tree() { return optimise_tree(*tree_ptr); }	×
243
244	template <size_t N>
245	libtensor::expr::expr_tree ExpressionTree::evaluation_tree(	×
246	libtensor::btensor<N, scalar_type>& result, bool add) const {
247	// This does exactly the same stuff as
248	// lt::expr::eval_btensor<double>().evaluate(assigntree) except doing the evaluation.
249	lt::expr::expr_tree assigntree = assignment_tree(*this, result, add);	×
250	lt::expr::eval_tree_builder_btensor bld(assigntree);	×
251	bld.build();	×
252	return bld.get_tree();	×
253	}	×
254
255	template <size_t N>
256	void ExpressionTree::evaluate_to(lt::btensor<N, scalar_type>& result, bool add) const {	200,845✔
257	lt::expr::expr_tree assigntree = optimise_tree(assignment_tree(*this, result, add));	200,845✔
258
259	lt::BlasSequential seq; // Switch to sequential BLAS for evaluations	200,845✔
260
261	if (is_linear_combination(assigntree)) {	200,845✔
262	evaluate_linear_combination(assigntree, result, add);	13,648✔
263	return;	13,648✔
264	}
265
266	// Normal evaluation via libtensor
267	lt::expr::eval_btensor<double>().evaluate(assigntree);	187,197✔
268	}	214,493✔
269
270	//
271	// Explicit instantiation
272	//
273
274	#define INSTANTIATE(DIM) \
275	template void ExpressionTree::evaluate_to( \
276	libtensor::btensor<DIM, scalar_type>& result, bool add) const; \
277	\
278	template libtensor::expr::expr_tree ExpressionTree::evaluation_tree( \
279	libtensor::btensor<DIM, scalar_type>& result, bool add) const;
280
281	INSTANTIATE(1)
282	INSTANTIATE(2)
283	INSTANTIATE(3)
284	INSTANTIATE(4)
285
286	#undef INSTANTIATE
287
288	} // namespace libadcc

adc-connect / adcc / 5362537629

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