-
Notifications
You must be signed in to change notification settings - Fork 2
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
6 changed files
with
205 additions
and
157 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,83 @@ | ||
| // Copyright 2023 Google LLC | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| #include "chromobius/graph/collect_composite_errors.h" | ||
|
|
||
| #include "chromobius/graph/collect_atomic_errors.h" | ||
|
|
||
| using namespace chromobius; | ||
|
|
||
| void chromobius::collect_composite_errors_and_remnants_into_mobius_dem( | ||
| const stim::DetectorErrorModel &dem, | ||
| std::span<const ColorBasis> node_colors, | ||
| const std::map<AtomicErrorKey, obsmask_int> &atomic_errors, | ||
| bool drop_mobius_errors_involving_remnant_errors, | ||
| bool ignore_decomposition_failures, | ||
| stim::DetectorErrorModel *out_mobius_dem, | ||
| std::map<AtomicErrorKey, obsmask_int> *out_remnants) { | ||
|
|
||
| stim::SparseXorVec<node_offset_int> dets; | ||
| std::vector<node_offset_int> x_buf; | ||
| std::vector<node_offset_int> z_buf; | ||
| std::vector<AtomicErrorKey> atoms_buf; | ||
| std::vector<stim::DemTarget> composite_error_buffer; | ||
|
|
||
| dem.iter_flatten_error_instructions([&](stim::DemInstruction instruction) { | ||
| obsmask_int obs_flip; | ||
| extract_obs_and_dets_from_error_instruction(instruction, &dets, &obs_flip); | ||
|
|
||
| decompose_dets_into_atoms( | ||
| dets.sorted_items, | ||
| obs_flip, | ||
| node_colors, | ||
| atomic_errors, | ||
| ignore_decomposition_failures, | ||
| &x_buf, | ||
| &z_buf, | ||
| instruction, | ||
| &dem, | ||
| &atoms_buf, | ||
| out_remnants); | ||
|
|
||
| if (drop_mobius_errors_involving_remnant_errors && !out_remnants->empty()) { | ||
| atoms_buf.clear(); | ||
| out_remnants->clear(); | ||
| } | ||
|
|
||
| // Convert atomic errors into mobius detection events with decomposition suggestions. | ||
| composite_error_buffer.clear(); | ||
| bool has_corner_node = false; | ||
| for (const auto &atom : atoms_buf) { | ||
| has_corner_node |= atom.dets[1] == BOUNDARY_NODE; | ||
| atom.iter_mobius_edges(node_colors, [&](node_offset_int d1, node_offset_int d2) { | ||
| composite_error_buffer.push_back(stim::DemTarget::relative_detector_id(d1)); | ||
| composite_error_buffer.push_back(stim::DemTarget::relative_detector_id(d2)); | ||
| composite_error_buffer.push_back(stim::DemTarget::separator()); | ||
| }); | ||
| } | ||
|
|
||
| // Put the composite error into the mobius dem as an error instruction. | ||
| if (!composite_error_buffer.empty()) { | ||
| composite_error_buffer.pop_back(); | ||
| double p = instruction.arg_data[0]; | ||
| if (has_corner_node) { | ||
| // Corner nodes have edges to themselves that correspond to reaching the boundary in one subgraph | ||
| // and then bouncing back in another subgraph. Accounting for this correctly requires doubling the | ||
| // weight of the edge, which corresponds to squaring the probability. | ||
| p *= p; | ||
| } | ||
| out_mobius_dem->append_error_instruction(p, composite_error_buffer); | ||
| } | ||
| }); | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,20 @@ | ||
| // Copyright 2023 Google LLC | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| #include "chromobius/graph/collect_composite_errors.h" | ||
|
|
||
| #include "chromobius/graph/collect_atomic_errors.h" | ||
|
|
||
| using namespace chromobius; | ||
|
|
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,50 @@ | ||
| // Copyright 2023 Google LLC | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| #include "chromobius/graph/collect_composite_errors.h" | ||
|
|
||
| #include "chromobius/graph/collect_atomic_errors.h" | ||
|
|
||
| using namespace chromobius; | ||
|
|
||
| bool chromobius::decompose_single_basis_dets_into_atoms_helper_n6( | ||
| std::span<const node_offset_int> dets, | ||
| obsmask_int obs_flip, | ||
| std::span<const ColorBasis> node_colors, | ||
| const std::map<AtomicErrorKey, obsmask_int> &atomic_errors, | ||
| std::vector<AtomicErrorKey> *out_atoms, | ||
| std::map<AtomicErrorKey, obsmask_int> *out_remnants) { | ||
| int best_score = 0; | ||
|
|
||
| // 3:3 decomposition. | ||
| for (size_t k1 = 0; k1 < dets.size() && best_score < 2; k1++) { | ||
| for (size_t k2 = k1 + 1; k2 < dets.size(); k2++) { | ||
| for (size_t k3 = k2 + 1; k3 < dets.size(); k3++) { | ||
| try_grow_decomposition( | ||
| AtomicErrorKey{dets[k1], dets[k2], dets[k3]}, | ||
| AtomicErrorKey{ | ||
| dets[0 + (k1 <= 0) + (k2 <= 0) + (k3 <= 0)], | ||
| dets[1 + (k1 <= 1) + (k2 <= 1) + (k3 <= 1)], | ||
| dets[2 + (k1 <= 2) + (k2 <= 2) + (k3 <= 2)], | ||
| }, | ||
| node_colors, | ||
| atomic_errors, | ||
| out_atoms, | ||
| best_score); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return try_finish_decomposition(best_score, obs_flip, atomic_errors, out_atoms, out_remnants); | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,48 @@ | ||
| // Copyright 2023 Google LLC | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| #include "chromobius/graph/collect_composite_errors.h" | ||
|
|
||
| #include "chromobius/graph/collect_atomic_errors.h" | ||
|
|
||
| using namespace chromobius; | ||
|
|
||
| bool chromobius::decompose_single_basis_dets_into_atoms_helper_n5( | ||
| std::span<const node_offset_int> dets, | ||
| obsmask_int obs_flip, | ||
| std::span<const ColorBasis> node_colors, | ||
| const std::map<AtomicErrorKey, obsmask_int> &atomic_errors, | ||
| std::vector<AtomicErrorKey> *out_atoms, | ||
| std::map<AtomicErrorKey, obsmask_int> *out_remnants) { | ||
| int best_score = 0; | ||
|
|
||
| // 2:3 decomposition. | ||
| for (size_t k1 = 0; k1 < dets.size() && best_score < 2; k1++) { | ||
| for (size_t k2 = k1 + 1; k2 < dets.size(); k2++) { | ||
| try_grow_decomposition( | ||
| AtomicErrorKey{dets[k1], dets[k2], BOUNDARY_NODE}, | ||
| AtomicErrorKey{ | ||
| dets[0 + (k1 <= 0) + (k2 <= 0)], | ||
| dets[1 + (k1 <= 1) + (k2 <= 1)], | ||
| dets[2 + (k1 <= 2) + (k2 <= 2)], | ||
| }, | ||
| node_colors, | ||
| atomic_errors, | ||
| out_atoms, | ||
| best_score); | ||
| } | ||
| } | ||
|
|
||
| return try_finish_decomposition(best_score, obs_flip, atomic_errors, out_atoms, out_remnants); | ||
| } |