| #!/usr/bin/python3 |
| # Copyright 2020 Efabless Corporation |
| # |
| # 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. |
| |
| import argparse |
| from operator import itemgetter |
| |
| |
| parser = argparse.ArgumentParser( |
| description="Selects top configuration from a report file and produces a new report file containing the top configurations only for each design" |
| ) |
| |
| parser.add_argument("--input", "-i", required=True, help="input report file") |
| parser.add_argument( |
| "--output", "-o", required=True, help="output report file with top configuration" |
| ) |
| |
| args = parser.parse_args() |
| report_file = args.input |
| output_file = args.output |
| |
| tr_violations_idx = 0 |
| lvs_errors_idx = 0 |
| magic_violations_idx = 0 |
| antenna_violations_idx = 0 |
| wire_length_idx = 0 |
| via_idx = 0 |
| flow_status_idx = 0 |
| design_idx = 0 |
| |
| |
| def get_header(report_file): |
| f = open(report_file, "r") |
| header = f.readline() |
| return header |
| |
| |
| def build_dictionary(report_file): |
| with open(report_file, "r") as f: |
| lines = list(filter(None, (line.rstrip() for line in f))) |
| header = lines[0] |
| lines = lines[1:] |
| lines = [line.split(",") for line in lines] |
| |
| dictionary = {} |
| for config in lines: |
| if len(config) < len(header.split(",")): |
| continue |
| |
| key = config[design_idx] |
| if key in dictionary: |
| dictionary[key].append(config[design_idx + 1 :]) |
| else: |
| dictionary[key] = [config[design_idx + 1 :]] |
| |
| return dictionary |
| |
| |
| def convert_vio_to_int(val): |
| val = int(val) |
| if val < 0: |
| val = 2**31 # Explode |
| return val |
| |
| |
| def convert_vio_to_string(val): |
| if val == 2**31: |
| val = -1 |
| return str(val) |
| |
| |
| def convert_vios_to_int(results_vector): |
| # change violations to int |
| for i in range(len(results_vector)): |
| row = results_vector[i] |
| row[tr_violations_idx] = convert_vio_to_int(row[tr_violations_idx]) |
| row[lvs_errors_idx] = convert_vio_to_int(row[lvs_errors_idx]) |
| row[magic_violations_idx] = convert_vio_to_int(row[magic_violations_idx]) |
| row[antenna_violations_idx] = convert_vio_to_int(row[antenna_violations_idx]) |
| results_vector[i] = row |
| return results_vector |
| |
| |
| def filter_by_tr_vios(results_vector): |
| # Get a close subset by TR vios |
| sorted_violations = sorted(results_vector, key=itemgetter(tr_violations_idx)) |
| best_violation = int(sorted_violations[0][tr_violations_idx]) |
| |
| close_subset = [sorted_violations[0]] |
| for result in sorted_violations[1:]: |
| violation = int(result[tr_violations_idx]) |
| if (abs(violation - best_violation) < 5) and best_violation != 0: |
| close_subset.append(result) |
| elif violation == 0: |
| close_subset.append(result) |
| return close_subset |
| |
| |
| def filter_by_lvs_errors(results_vector): |
| # Get a close subset by LVS errors |
| # The philosiphy here is if one run is LVS clean, then don't accept anything that |
| # is not LVS clean. Otherwise, don't trust the reported result by netgen and pass |
| # everything as is to the next filter. |
| sorted_violations = sorted(results_vector, key=itemgetter(lvs_errors_idx)) |
| best_violation = int(sorted_violations[0][lvs_errors_idx]) |
| |
| if best_violation == 0: |
| close_subset = [sorted_violations[0]] |
| for result in sorted_violations[1:]: |
| violation = int(result[lvs_errors_idx]) |
| if violation == 0: |
| close_subset.append(result) |
| return close_subset |
| else: |
| return results_vector |
| |
| |
| def filter_by_magic_vios(results_vector): |
| # Get a close subset by magic drc vios |
| sorted_violations = sorted(results_vector, key=itemgetter(magic_violations_idx)) |
| best_violation = int(sorted_violations[0][magic_violations_idx]) |
| |
| close_subset = [sorted_violations[0]] |
| for result in sorted_violations[1:]: |
| violation = int(result[magic_violations_idx]) |
| # Allow for 100 vios tolerance (given the history of magic drc(full)) |
| if (abs(violation - best_violation) < 100) and best_violation != 0: |
| close_subset.append(result) |
| elif violation == 0: |
| close_subset.append(result) |
| return close_subset |
| |
| |
| def filter_by_antenna_vios(results_vector): |
| # Get a close subset by antenna vios |
| sorted_violations = sorted(results_vector, key=itemgetter(antenna_violations_idx)) |
| best_violation = int(sorted_violations[0][antenna_violations_idx]) |
| |
| close_subset = [sorted_violations[0]] |
| for result in sorted_violations[1:]: |
| violation = int(result[antenna_violations_idx]) |
| # Allow for 10 vios tolerance |
| if (abs(violation - best_violation) < 10) and best_violation != 0: |
| close_subset.append(result) |
| elif violation == 0: |
| close_subset.append(result) |
| return close_subset |
| |
| |
| def get_best_violation(results_vector): |
| # Remove all failing designs (unless they are all failing then only keep one of them) |
| remover = 0 |
| n = len(results_vector) |
| while remover != n and n != 1: |
| if "fail" in str(results_vector[remover][flow_status_idx]): |
| results_vector.pop(remover) |
| remover -= 1 |
| n = len(results_vector) |
| remover += 1 |
| # Convert violations to integers |
| results_vector = convert_vios_to_int(results_vector) |
| |
| # Filter the results vector by TR violations |
| close_subset = filter_by_tr_vios(results_vector) |
| # Filter the close subset by LVS errors |
| close_subset = filter_by_lvs_errors(close_subset) |
| # Filter the close subset by magic DRC violations |
| close_subset = filter_by_magic_vios(close_subset) |
| # Filter the close subset by antenna violations |
| close_subset = filter_by_antenna_vios(close_subset) |
| # Finalize selection based on wire length and via count |
| for i in range(len(close_subset)): |
| row = close_subset[i] |
| wirelength = row[wire_length_idx] |
| via = row[via_idx] |
| row.append((int(wirelength) + int(via))) |
| row[tr_violations_idx] = convert_vio_to_string(row[tr_violations_idx]) |
| row[lvs_errors_idx] = convert_vio_to_string(row[lvs_errors_idx]) |
| row[magic_violations_idx] = convert_vio_to_string(row[magic_violations_idx]) |
| row[antenna_violations_idx] = convert_vio_to_string(row[antenna_violations_idx]) |
| close_subset[i] = row |
| |
| sorted_wire_length_via = sorted(close_subset, key=itemgetter(-1)) |
| best_result = sorted_wire_length_via[0][:-1] |
| return best_result |
| |
| |
| def get_best_results(results_dictionary): |
| best = {} |
| for key in results_dictionary: |
| results = results_dictionary[key] |
| best_result = get_best_violation(results) |
| best[key] = best_result |
| |
| return best |
| |
| |
| def save_top_results(results_dictionary, output_file, header): |
| out = open(output_file, "w") |
| out.write(header) |
| |
| for key in results_dictionary: |
| out.writelines("%s,%s" % (key, ",".join(results_dictionary[key]))) |
| out.write("\n") |
| |
| out.close() |
| |
| |
| def findIdx(header, column): |
| |
| for idx in range(len(header)): |
| if header[idx] == column: |
| return int(idx) |
| return -1 |
| |
| |
| header = get_header(report_file) |
| |
| headerSplit = header.split(",") |
| design_idx = findIdx(headerSplit, "design") |
| |
| results_dictionary = build_dictionary(report_file) |
| |
| tr_violations_idx = findIdx(headerSplit, "tritonRoute_violations") - (design_idx + 1) |
| lvs_errors_idx = findIdx(headerSplit, "lvs_total_errors") - (design_idx + 1) |
| magic_violations_idx = findIdx(headerSplit, "Magic_violations") - (design_idx + 1) |
| antenna_violations_idx = findIdx(headerSplit, "antenna_violations") - (design_idx + 1) |
| wire_length_idx = findIdx(headerSplit, "wire_length") - (design_idx + 1) |
| via_idx = findIdx(headerSplit, "vias") - (design_idx + 1) |
| flow_status_idx = findIdx(headerSplit, "flow_status") - (design_idx + 1) |
| best_results = get_best_results(results_dictionary) |
| |
| save_top_results(best_results, output_file, ",".join(headerSplit[design_idx:])) |