default-src 'none'; frame-ancestors 'none'

_cfuvid=sMC1X0DNj6ewokGfPuMX4xn9mGoA2KatzSZuB3hNge0-1774605431.7033002-1.0.1.1-MW1kQIjLPxbxW6FsYFwBkkEetXBsCXvpg.ACfPVvGzw; HttpOnly; SameSite=None; Secure; Path=/; Domain=api.anthropic.com

Overloaded. https://docs.claude.com/en/api/errors


_cfuvid=N9eZV9Qd1PVHYR45zoyk8h01ZOILw3wJu9DfFK0TWbc-1774605433.0710816-1.0.1.1-KvRdx3AkdNs5epImXDoefUlQdTfREU.3wbtBCDWiIrw; HttpOnly; SameSite=None; Secure; Path=/; Domain=api.anthropic.com


Bash

cmake --build build -j$(nproc) --target build-index 2>&1 | tail -5

Build with deterministic ordering


[ 10%] Building CXX object CMakeFiles/build-index.dir/src/build_index.cpp.o
[ 20%] Linking CXX executable build-index
[100%] Built target build-index


_cfuvid=R4EU73etilnaSFRFV2OhwKt27ksGTNbJlFD0l.2aZ4A-1774605450.513921-1.0.1.1-teJJKlVLlGh54LYEgkmttNyx5YJqULWJPCIqT1GrzKg; HttpOnly; SameSite=None; Secure; Path=/; Domain=api.anthropic.com


_cfuvid=DR90TEmbdrAhslXAmfZvhXtuD70VyVZtcmwo4FwFTZQ-1774605451.7187378-1.0.1.1-.iok2B_URzmMQy1s2Gc0IxyYWxa9B99pY4x8qwPgl7g; HttpOnly; SameSite=None; Secure; Path=/; Domain=api.anthropic.com


Now deploy and run Test 1: build the same PBF twice and verify byte-identical output.


sshpass -p 'elon-is-insane' scp -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -o ProxyCommand="tailscale nc %h %p" /root/traccar-geocoder/builder/build/build-index michtest@100.113.88.121:~/build-index-det 2>&1

Deploy deterministic build


Warning: Permanently added '100.113.88.121' (ED25519) to the list of known hosts.


_cfuvid=zZ1S_zyqyjB9M4MMFZSCN9iKEu.uw0R5PmARc3yLciw-1774605465.9080496-1.0.1.1-dwrNHuWPDUOfcKX6.5o7UkJ9ISZ5OGESuNo57514BqQ; HttpOnly; SameSite=None; Secure; Path=/; Domain=api.anthropic.com


_cfuvid=utPFbAcSqo6BAeOIT6ik5PPWXg9R5WMoveIPGbFAXIU-1774605467.0439522-1.0.1.1-C8C2ppk6BZaMnTS_AIsD47PsTKpZYtvrdlgEYNoaOXk; HttpOnly; SameSite=None; Secure; Path=/; Domain=api.anthropic.com


sshpass -p 'elon-is-insane' ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -o ProxyCommand="tailscale nc %h %p" michtest@100.113.88.121 '
# Test 1: Build same PBF twice, verify byte-identical output
rm -rf ~/det-A ~/det-B
echo "=== Build A ==="
~/build-index-det ~/det-A ~/pbf/europe.osm.pbf --simplify-epsilon --epsilon-scale 1 2>&1 | grep -E "(sorted|Sort|Deterministic|Done)"
echo "=== Build B ==="
~/build-index-det ~/det-B ~/pbf/europe.osm.pbf --simplify-epsilon --epsilon-scale 1 2>&1 | grep -E "(sorted|Sort|Deterministic|Done)"
echo "=== Comparing ==="
all_match=true
for f in ~/det-A/*.bin; do
    b=$(basename $f)
    if cmp -s "$f" ~/det-B/$b; then
        echo "  $b: MATCH"
    else
        echo "  $b: MISMATCH"
        all_match=false
    fi
done
if $all_match; then echo "ALL FILES MATCH — deterministic!"; else echo "SOME FILES DIFFER"; fi
' 2>&1

Test determinism: build same PBF twice


Command running in background with ID: bbnwakgvg. Output is being written to: /tmp/claude-0/-root-traccar-geocoder/af1c4baa-0f9a-4420-a8b3-ce20dc28c8b9/tasks/bbnwakgvg.output


This will take ~20 minutes (two Europe builds). Let me check on it periodically.


sleep 30 && cat /tmp/claude-0/-root-traccar-geocoder/af1c4baa-0f9a-4420-a8b3-ce20dc28c8b9/tasks/bbnwakgvg.output 2>/dev/null | tail -20

Check determinism test progress


Warning: Permanently added '100.113.88.121' (ED25519) to the list of known hosts.
=== Build A ===
Done reading:
Sorted admin polygons largest-first (450907 polygons).
  Sorting and grouping cell pairs...
  [4.0s 1.0/32cores 3% 125977MiB]     Dedup: build sorted pairs
Deterministic ordering...
  String pool sorted: 4982052 strings
  [5.5s 1.0/32cores 3% 20284MiB]   Sort strings
  Addr points sorted: 85891830
  [54.7s 1.0/32cores 3% 20283MiB]   Sort addr_points
  Ways sorted: 19452480
  [16.5s 1.0/32cores 3% 20052MiB]   Sort ways
  Interps sorted: 13988
  [0.0s 0.0/32cores 0% 20052MiB]   Sort interps
  Admin polygons sorted: 450907
  [0.2s 1.0/32cores 3% 20052MiB]   Sort admin
  [101.6s 1.1/32cores 3% 20052MiB] Deterministic ordering
Done.
=== Build B ===


_cfuvid=NxY9urfpO8AbednI0JZS3..BBfERuqVwaxm9bBGO5Iw-1774606119.9362848-1.0.1.1-i9KHIKTIB7HT00S72kkf66Tqz9PxuWua56zEyX_FSiE; HttpOnly; SameSite=None; Secure; Path=/; Domain=api.anthropic.com


_cfuvid=pPCeAJRzfd2UZj2mB84BQsgvr6K2Nxu.atL0jkHbacg-1774606121.2662454-1.0.1.1-cgUbYMbEA0b0jV.wo7f2drx5cTdMNZYNzqKPoxwXPiw; HttpOnly; SameSite=None; Secure; Path=/; Domain=api.anthropic.com


Build A done (sorting took ~102s). Build B is running. The addr_points sort is the expensive part at 55s — that's because it does string comparisons for 86M records. Let me wait for the full result.


sleep 300 && cat /tmp/claude-0/-root-traccar-geocoder/af1c4baa-0f9a-4420-a8b3-ce20dc28c8b9/tasks/bbnwakgvg.output 2>/dev/null | tail -30

Check determinism test after 5 minutes


  [3.9s 1.0/32cores 3% 125954MiB]     Dedup: build sorted pairs
Deterministic ordering...
  String pool sorted: 4982052 strings
  [5.6s 1.0/32cores 3% 20072MiB]   Sort strings
  Addr points sorted: 85891830
  [53.9s 1.0/32cores 3% 19865MiB]   Sort addr_points
  Ways sorted: 19452480
  [15.5s 1.0/32cores 3% 19633MiB]   Sort ways
  Interps sorted: 13988
  [0.0s 0.0/32cores 0% 19633MiB]   Sort interps
  Admin polygons sorted: 450907
  [0.2s 1.0/32cores 3% 19633MiB]   Sort admin
  [99.3s 1.1/32cores 3% 19633MiB] Deterministic ordering
Done.
=== Comparing ===
  addr_entries.bin: MISMATCH
  addr_points.bin: MISMATCH
  admin_cells.bin: MATCH
  admin_entries.bin: MISMATCH
  admin_polygons.bin: MISMATCH
  admin_vertices.bin: MISMATCH
  geo_cells.bin: MATCH
  interp_entries.bin: MISMATCH
  interp_nodes.bin: MISMATCH
  interp_ways.bin: MISMATCH
  street_entries.bin: MISMATCH
  street_nodes.bin: MISMATCH
  street_ways.bin: MATCH
  strings.bin: MATCH
SOME FILES DIFFER


Several files still differ — the sorts have ties. Two addresses with the same street/housenumber/grid position sort non-deterministically. I need stronger tiebreakers. Let me fix the sorts to use raw float bits and more comparison fields:


  1316→                std::vector<char> new_data;
  1317→                new_data.reserve(pool_data.size());
  1318→                for (auto& [old_off, str] : strings) {
  1319→                    remap[old_off] = static_cast<uint32_t>(new_data.size());
  1320→                    size_t len = strlen(str);
  1321→                    new_data.insert(new_data.end(), str, str + len + 1);
  1322→                }
  1323→                pool_data = std::move(new_data);
  1324→
  1325→                // Apply remap to all data records
  1326→                const auto& rm = remap;
  1327→                for (auto& w : data.ways) w.name_id = rm.at(w.name_id);
  1328→                for (auto& a : data.addr_points) {
  1329→                    a.housenumber_id = rm.at(a.housenumber_id);
  1330→                    a.street_id = rm.at(a.street_id);
  1331→                }
  1332→                for (auto& iw : data.interp_ways) iw.street_id = rm.at(iw.street_id);
  1333→                for (auto& ap : data.admin_polygons) ap.name_id = rm.at(ap.name_id);
  1334→                std::cerr << "  String pool sorted: " << strings.size() << " strings" << std::endl;
  1335→            }

                std::vector<char> new_data;
                new_data.reserve(pool_data.size());
                for (auto& [old_off, str] : strings) {
                    remap[old_off] = static_cast<uint32_t>(new_data.size());
                    size_t len = strlen(str);
                    new_data.insert(new_data.end(), str, str + len + 1);
                }
                pool_data = std::move(new_data);

                // Apply remap to all data records
                const auto& rm = remap;
                for (auto& w : data.ways) w.name_id = rm.at(w.name_id);
                for (auto& a : data.addr_points) {
                    a.housenumber_id = rm.at(a.housenumber_id);
                    a.street_id = rm.at(a.street_id);
                }
                for (auto& iw : data.interp_ways) iw.street_id = rm.at(iw.street_id);
                for (auto& ap : data.admin_polygons) ap.name_id = rm.at(ap.name_id);
                std::cerr << "  String pool sorted: " << strings.size() << " strings" << std::endl;
            }


Now let me update the sort comparators to use raw float bits as tiebreakers:


Edit

        // Helper: grid coordinate for canonical ordering
        auto to_grid = [](float v) -> int {
            return (int)(v * 1e5f + (v >= 0 ? 0.5f : -0.5f));
        };

        // 2. Sort addr_points by (street, housenumber, lat, lng)
        if (!data.sorted_addr_cells.empty()) {
            size_t n = data.addr_points.size();
            std::vector<uint32_t> order(n);
            std::iota(order.begin(), order.end(), 0);
            const auto& sp = data.string_pool.data();
            std::sort(order.begin(), order.end(), [&](uint32_t a, uint32_t b) {
                const auto& pa = data.addr_points[a];
                const auto& pb = data.addr_points[b];
                int c = strcmp(sp.data() + pa.street_id, sp.data() + pb.street_id);
                if (c != 0) return c < 0;
                c = strcmp(sp.data() + pa.housenumber_id, sp.data() + pb.housenumber_id);
                if (c != 0) return c < 0;
                int la = to_grid(pa.lat), lb = to_grid(pb.lat);
                if (la != lb) return la < lb;
                return to_grid(pa.lng) < to_grid(pb.lng);
            });

        // Helper: reinterpret float as uint32 for total ordering (works for IEEE 754)
        auto float_bits = [](float v) -> uint32_t {
            uint32_t bits;
            memcpy(&bits, &v, 4);
            // Handle negative floats: flip all bits if sign bit set, else flip sign bit
            return (bits & 0x80000000) ? ~bits : (bits ^ 0x80000000);
        };

        // 2. Sort addr_points by (street_id, housenumber_id, lat_bits, lng_bits)
        //    Using string offsets directly (already remapped to sorted pool) gives
        //    deterministic order. Raw float bits as final tiebreaker for total order.
        if (!data.sorted_addr_cells.empty()) {
            size_t n = data.addr_points.size();
            std::vector<uint32_t> order(n);
            std::iota(order.begin(), order.end(), 0);
            std::sort(order.begin(), order.end(), [&](uint32_t a, uint32_t b) {
                const auto& pa = data.addr_points[a];
                const auto& pb = data.addr_points[b];
                // Since strings are sorted alphabetically, comparing offsets
                // gives the same order as strcmp — and it's O(1) not O(n)
                if (pa.street_id != pb.street_id) return pa.street_id < pb.street_id;
                if (pa.housenumber_id != pb.housenumber_id) return pa.housenumber_id < pb.housenumber_id;
                uint32_t la = float_bits(pa.lat), lb = float_bits(pb.lat);
                if (la != lb) return la < lb;
                return float_bits(pa.lng) < float_bits(pb.lng);
            });