Replace legacy distributed protocol with SDK-built workloads

This commit is contained in:
Emil
2026-08-01 23:57:41 +03:00
parent 96169086f0
commit 19fbb8e926
34 changed files with 3009 additions and 1986 deletions
+31
View File
@@ -0,0 +1,31 @@
"""SDK-built ``similarity-search`` reference workload.
See ``core.py`` for the sharding/merge scientific core and ``definition.py``
for the manifest-backed planner/runner/reducer handlers.
"""
from .core import (
merge_search_partials,
run_search_shard,
write_search_partial,
write_search_shards,
)
from .definition import (
MAP_ENTRY_POINT,
REDUCE_ENTRY_POINT,
SimilaritySearchSDKWorkload,
similarity_search_sdk_definition,
workload_definition,
)
__all__ = [
"MAP_ENTRY_POINT",
"REDUCE_ENTRY_POINT",
"SimilaritySearchSDKWorkload",
"merge_search_partials",
"run_search_shard",
"similarity_search_sdk_definition",
"workload_definition",
"write_search_partial",
"write_search_shards",
]
+261
View File
@@ -0,0 +1,261 @@
"""Scientific core for the SDK-built ``similarity-search`` workload.
Reuses the local reference implementation (``search_similar``) and the shared
CTX-08 partial format (full-precision ``repr`` scores) so that shard outputs
and the merged final CSV are byte-identical to the legacy distributed path and
to the single-process reference.
"""
from __future__ import annotations
import csv
import heapq
from pathlib import Path
from typing import Any, Iterator, Mapping, Sequence
from scimesh.chemistry.dataset import MoleculeRecord, parse_smiles
from scimesh.workloads.similarity_search import (
SimilarityMatch,
_HeapEntry,
search_similar,
write_search_results,
)
SEARCH_COLUMNS = ("rank", "chembl_id", "canonical_smiles", "similarity")
REQUIRED_COLUMNS = {"chembl_id", "canonical_smiles"}
def write_search_partial(
output_path: Path,
matches: Sequence[SimilarityMatch],
) -> None:
"""Write a worker partial with a round-trip score, not display rounding.
The public final CSV continues to use the local CLI's six-decimal display.
A reducer needs the full binary float representation to rank candidates
from separate shards exactly as the single-process reference does.
"""
output_path.parent.mkdir(parents=True, exist_ok=True)
with output_path.open("w", encoding="utf-8", newline="") as destination:
writer = csv.DictWriter(destination, fieldnames=list(SEARCH_COLUMNS))
writer.writeheader()
for rank, match in enumerate(matches, start=1):
writer.writerow(
{
"rank": rank,
"chembl_id": match.molecule_id,
"canonical_smiles": match.smiles,
"similarity": repr(match.similarity),
}
)
def run_search_shard(
input_path: Path,
parameters: Mapping[str, object],
output_path: Path,
) -> dict[str, int]:
"""Run one planned shard with the local reference implementation.
This is the worker entry used by the SDK-built runner. It deliberately
accepts only resolved ``query_smiles``: resolving an identifier
independently in each shard would make the distributed search
scientifically invalid, so identifier resolution happens once in the
planner (or at the worker bridge for v1-wire tasks that still carry
``query_id``).
"""
allowed = {
"query_smiles",
"top_k",
"threshold",
"threshold_direction",
"progress_every",
}
unknown = set(parameters) - allowed
if unknown:
raise ValueError(
f"unsupported similarity-search parameters: {', '.join(sorted(unknown))}"
)
query_smiles = parameters.get("query_smiles")
if not isinstance(query_smiles, str) or not query_smiles.strip():
raise ValueError("query_smiles is required for a distributed shard")
molecule = parse_smiles(query_smiles)
if molecule is None:
raise ValueError("query_smiles is invalid")
top_k = _positive_int(parameters.get("top_k", 20), "top_k")
threshold = None
if "threshold" in parameters:
threshold = _unit_interval(parameters["threshold"], "threshold")
direction = parameters.get("threshold_direction", "greater")
if direction not in {"greater", "less"}:
raise ValueError("threshold_direction must be 'greater' or 'less'")
assert isinstance(direction, str)
progress_every = 0
if "progress_every" in parameters:
progress_every = _nonnegative_int(
parameters["progress_every"], "progress_every"
)
result = search_similar(
input_path,
MoleculeRecord("query", query_smiles, molecule),
top_k=top_k,
progress_every=progress_every,
threshold=threshold,
threshold_direction=direction,
)
write_search_partial(output_path, result.matches)
return {
"scanned_rows": result.stats.scanned,
"valid_molecules": result.stats.valid,
"invalid_smiles": result.stats.invalid,
"matches_emitted": len(result.matches),
}
def _positive_int(value: object, name: str) -> int:
if isinstance(value, bool) or not isinstance(value, int) or value < 1:
raise ValueError(f"{name} must be a positive integer")
return value
def _nonnegative_int(value: object, name: str) -> int:
if isinstance(value, bool) or not isinstance(value, int) or value < 0:
raise ValueError(f"{name} must be a non-negative integer")
return value
def _unit_interval(value: object, name: str) -> float:
if isinstance(value, bool) or not isinstance(value, (int, float)):
raise ValueError(f"{name} must be a number between 0 and 1")
return float(value)
def write_search_shards(
input_path: Path,
workspace: Path,
shard_rows: int,
max_rows: int | None = None,
) -> list[Path]:
"""Split the input TSV into deterministic row-bounded shards with headers."""
if (
isinstance(shard_rows, bool)
or not isinstance(shard_rows, int)
or shard_rows < 1
):
raise ValueError("shard_rows must be a positive integer")
if max_rows is not None and (
isinstance(max_rows, bool) or not isinstance(max_rows, int) or max_rows < 1
):
raise ValueError("max_rows must be a positive integer")
paths: list[Path] = []
current: Path | None = None
destination = None
writer = None
rows_in_shard = 0
seen_rows = 0
try:
with input_path.open("r", encoding="utf-8", newline="") as source:
reader = csv.DictReader(source, delimiter="\t")
fieldnames = tuple(reader.fieldnames or ())
if not REQUIRED_COLUMNS.issubset(set(fieldnames)):
missing = sorted(REQUIRED_COLUMNS - set(fieldnames))
raise ValueError(
f"dataset is missing required columns: {', '.join(missing)}"
)
for row in reader:
if max_rows is not None and seen_rows >= max_rows:
break
if destination is None or rows_in_shard == shard_rows:
if destination is not None:
destination.close()
current = workspace / f"shard-{len(paths)}.tsv"
destination = current.open("w", encoding="utf-8", newline="")
writer = csv.DictWriter(
destination,
fieldnames=list(fieldnames),
delimiter="\t",
lineterminator="\n",
)
writer.writeheader()
paths.append(current)
rows_in_shard = 0
assert writer is not None
writer.writerow(row)
rows_in_shard += 1
seen_rows += 1
finally:
if destination is not None:
destination.close()
if not paths:
raise ValueError("dataset has no data rows")
return paths
def iter_search_partial(
path: Path,
threshold_direction: str,
) -> Iterator[SimilarityMatch]:
"""Yield strictly ordered partial matches with full-precision scores."""
if not path.is_file():
raise ValueError("materialized partial result is missing")
if threshold_direction not in {"greater", "less"}:
raise ValueError("threshold_direction must be 'greater' or 'less'")
previous_key: tuple[float, str, str] | None = None
with path.open("r", encoding="utf-8", newline="") as source:
reader = csv.DictReader(source)
if tuple(reader.fieldnames or ()) != SEARCH_COLUMNS:
raise ValueError("partial result has an invalid CSV header")
for expected_rank, row in enumerate(reader, start=1):
if set(row) != set(SEARCH_COLUMNS) or row["rank"] != str(expected_rank):
raise ValueError("partial result has an invalid rank")
try:
similarity = float(row["similarity"])
except (TypeError, ValueError) as error:
raise ValueError("partial result has an invalid similarity") from error
if not 0 <= similarity <= 1:
raise ValueError("partial result has an invalid similarity")
match = SimilarityMatch(
similarity, row["chembl_id"], row["canonical_smiles"]
)
key = match.sort_key(threshold_direction)
if previous_key is not None and key < previous_key:
raise ValueError("partial result is not sorted deterministically")
previous_key = key
yield match
def merge_search_partials(
partial_paths: Sequence[Path],
parameters: Mapping[str, Any],
output_path: Path,
) -> dict[str, int]:
"""Merge sorted shard partials into one deterministic final top-k CSV.
Mirrors the CTX-08/CTX-09 reducer: a bounded heap with the local
tie-breaker, so the merged file equals the single-process reference
byte-for-byte for the same input and options.
"""
if not partial_paths:
raise ValueError("at least one partial result is required")
raw_top_k = parameters.get("top_k", 20)
if isinstance(raw_top_k, bool) or not isinstance(raw_top_k, int) or raw_top_k < 1:
raise ValueError("top_k must be a positive integer")
top_k = raw_top_k
direction = parameters.get("threshold_direction", "greater")
if direction not in {"greater", "less"}:
raise ValueError("threshold_direction must be 'greater' or 'less'")
heap: list[_HeapEntry] = []
for path in partial_paths:
for match in iter_search_partial(path, direction):
rank_key = match.sort_key(direction)
entry = _HeapEntry(match, rank_key)
if len(heap) < top_k:
heapq.heappush(heap, entry)
elif rank_key < heap[0].rank_key:
heapq.heapreplace(heap, entry)
matches = sorted(
(entry.match for entry in heap),
key=lambda match: match.sort_key(direction),
)
write_search_results(output_path, matches)
return {"matches_emitted": len(matches), "partial_count": len(partial_paths)}
+565
View File
@@ -0,0 +1,565 @@
"""SDK-built ``similarity-search`` workload definition and handlers.
A direct ``core-batch-v1`` definition (not the legacy adapter): the planner
resolves the query once, shards deterministically, each map task computes the
local top-k with the reference implementation, and the reducer merges the
sorted partials with the same bounded heap and tie-breakers as the local CLI.
The manifest declares ``byte_exact`` with the exact-artifact verifier and both
``trusted`` and ``untrusted_quorum`` trust modes.
"""
from __future__ import annotations
import hashlib
import shutil
from pathlib import Path
from typing import Any, Mapping
from rdkit import Chem
from scimesh.chemistry.dataset import find_molecule_by_id, parse_smiles
from scimesh.chemistry.fingerprints import FP_RADIUS, FP_SIZE
from ...sdk.artifacts import (
ArtifactCollection,
ArtifactItem,
ArtifactRef,
ArtifactSchema,
Cardinality,
CollectionKind,
OutputManifest,
PortSpec,
)
from ..environment import current_environment_digest, current_scimesh_package_digest
from ...sdk.execution import (
CheckpointPolicy,
ExecutionProfile,
NetworkPolicy,
RetryPolicy,
)
from ...sdk.identity import ComponentRef, SchemaRef, VersionRange, WorkloadId
from ...sdk.manifest import (
DeterminismProfile,
EnvironmentSpec,
PackageSpec,
TrustMode,
VerifierSpec,
WorkloadLimits,
WorkloadManifest,
)
from ...sdk.plans import JobRequest, TaskSpec, ValidatedJob, WorkflowPlan
from ...sdk.protocols import PlanningContext, ReduceContext, TaskContext
from ...sdk.registry import WorkloadDefinition
from ...sdk.resources import ResourceRequirements
from ...sdk.verification import ExactArtifactVerifier
from ...sdk.workflow import ArtifactEdge, PortRef, StageKind, StageSpec, WorkflowSpec
from .core import merge_search_partials, run_search_shard, write_search_shards
MAP_ENTRY_POINT = "scimesh.workloads.search.definition:map_search@v1"
REDUCE_ENTRY_POINT = "scimesh.workloads.search.definition:reduce_search@v1"
_MAP_PARAMETERS = (
"query_smiles",
"top_k",
"threshold",
"threshold_direction",
"progress_every",
)
_REDUCE_PARAMETERS = _MAP_PARAMETERS + ("query_source", "fingerprint")
def _sha256_file(path: Path) -> str:
digest = hashlib.sha256()
with path.open("rb") as source:
for block in iter(lambda: source.read(1024 * 1024), b""):
digest.update(block)
return digest.hexdigest()
def _parameters_schema() -> dict[str, Any]:
return {
"type": "object",
"additionalProperties": False,
"properties": {
"query_id": {"type": "string", "minLength": 1, "maxLength": 200},
"query_smiles": {"type": "string", "minLength": 1, "maxLength": 200},
"top_k": {"type": "integer", "minimum": 1},
"threshold": {"type": "number", "minimum": 0, "maximum": 1},
"threshold_direction": {"enum": ["greater", "less"]},
"max_rows": {"type": "integer", "minimum": 1},
"progress_every": {"type": "integer", "minimum": 0},
},
"oneOf": [
{"required": ["query_id"], "not": {"required": ["query_smiles"]}},
{"required": ["query_smiles"], "not": {"required": ["query_id"]}},
],
}
def _dataset_schema() -> ArtifactSchema:
return ArtifactSchema(
SchemaRef("molecule-table", 1),
"text/tab-separated-values",
"utf-8",
max_bytes=10 * 1024 * 1024 * 1024,
validator=ComponentRef("delimited-table", 1),
validator_configuration={
"required_columns": ["canonical_smiles", "chembl_id"],
},
max_records=100_000_000,
canonicalizer="scimesh-tsv-v1",
)
def _search_table_schema(ref: SchemaRef, canonicalizer: str) -> ArtifactSchema:
return ArtifactSchema(
ref,
"text/csv",
"utf-8",
max_bytes=1024 * 1024 * 1024,
validator=ComponentRef("delimited-table", 1),
validator_configuration={
"columns": ["rank", "chembl_id", "canonical_smiles", "similarity"],
},
max_records=100_000,
canonicalizer=canonicalizer,
)
class SimilaritySearchSDKWorkload:
"""Manifest-backed planner, runner, and reducer for similarity-search."""
def __init__(
self,
*,
shard_rows: int,
package_digest: str,
environment_digest: str,
) -> None:
if (
isinstance(shard_rows, bool)
or not isinstance(shard_rows, int)
or shard_rows < 1
):
raise ValueError("shard_rows must be a positive integer")
self.entry_point = MAP_ENTRY_POINT
self.shard_rows = shard_rows
self.input_port = PortSpec(_dataset_schema())
self.partial_port = PortSpec(
_search_table_schema(
SchemaRef("similarity-search-partial", 1), "scimesh-search-partial-v1"
)
)
self.output_port = PortSpec(
_search_table_schema(
SchemaRef("similarity-search-result", 1), "scimesh-search-result-v1"
)
)
resources = ResourceRequirements(
profile="search-cpu-v1",
cpu_cores=1,
memory_mb=1024,
scratch_mb=1024,
max_duration_seconds=3600,
)
execution = ExecutionProfile(
profile="search-python-process-v1",
network=NetworkPolicy.TRUSTED,
timeout_seconds=3600,
checkpoint=CheckpointPolicy(),
)
limits = WorkloadLimits(
max_input_bytes=self.input_port.schema.max_bytes,
max_tasks=10_000,
max_output_bytes=self.output_port.schema.max_bytes,
)
trust_modes = ("trusted", "untrusted_quorum")
map_stage = StageSpec(
stage_id="map",
kind=StageKind.MAP,
entry_point=MAP_ENTRY_POINT,
needs=(),
inputs={"input": self.input_port},
outputs={"partial": self.partial_port},
parameter_names=_MAP_PARAMETERS,
resources=resources,
execution=execution,
retry=RetryPolicy(),
verifier=ComponentRef("exact-artifact", 1),
trust_modes=trust_modes,
max_fan_out=limits.max_tasks,
cacheable=True,
)
reduce_input = PortSpec(
schema=self.partial_port.schema,
cardinality=Cardinality.MANY,
collection=CollectionKind.KEYED,
)
reduce_stage = StageSpec(
stage_id="reduce",
kind=StageKind.REDUCE,
entry_point=REDUCE_ENTRY_POINT,
needs=("map",),
inputs={"partials": reduce_input},
outputs={"result": self.output_port},
parameter_names=_REDUCE_PARAMETERS,
resources=resources,
execution=execution,
retry=RetryPolicy(),
verifier=ComponentRef("exact-artifact", 1),
trust_modes=trust_modes,
max_fan_out=1,
cacheable=True,
)
workflow = WorkflowSpec(
workflow_id="search-map-reduce-v1",
inputs={"input": self.input_port},
stages=(map_stage, reduce_stage),
edges=(
ArtifactEdge(PortRef("input"), PortRef("input", "map")),
ArtifactEdge(PortRef("partial", "map"), PortRef("partials", "reduce")),
),
outputs={"result": PortRef("result", "reduce")},
max_tasks=limits.max_tasks,
max_output_bytes=limits.max_output_bytes,
)
self.manifest = WorkloadManifest(
sdk_api=VersionRange(">=1.0,<2.0"),
protocol=VersionRange(">=1,<2"),
workload=WorkloadId("similarity-search", "1.0.0"),
description=(
"Exact top-k Tanimoto molecular similarity search over "
"deterministic TSV shards with a bounded merge."
),
package=PackageSpec("scimesh", package_digest),
environment=EnvironmentSpec(
"python-process",
environment_digest,
{"adapter": "sdk-native"},
),
parameters_schema=_parameters_schema(),
workflow=workflow,
inputs={"input": self.input_port},
outputs={"result": self.output_port},
determinism=DeterminismProfile.BYTE_EXACT,
trust_modes=(TrustMode.TRUSTED, TrustMode.UNTRUSTED_QUORUM),
verifier=VerifierSpec(ComponentRef("exact-artifact", 1), {}),
limits=limits,
capabilities=("similarity-search",),
conformance_profiles=("core-batch-v1",),
)
self._exact_verifier = ExactArtifactVerifier()
def definition(self) -> WorkloadDefinition:
return WorkloadDefinition(
manifest=self.manifest,
planner=self,
runners={MAP_ENTRY_POINT: self},
reducers={REDUCE_ENTRY_POINT: self},
verifiers={self._exact_verifier.identity.canonical: self._exact_verifier},
)
@staticmethod
def _string(value: object, name: str) -> str:
if not isinstance(value, str) or not value.strip() or len(value) > 200:
raise ValueError(f"{name} must be a non-empty string")
return value
@staticmethod
def _positive_int(value: object, name: str) -> int:
if isinstance(value, bool) or not isinstance(value, int) or value < 1:
raise ValueError(f"{name} must be a positive integer")
return value
@staticmethod
def _nonnegative_int(value: object, name: str) -> int:
if isinstance(value, bool) or not isinstance(value, int) or value < 0:
raise ValueError(f"{name} must be a non-negative integer")
return value
@staticmethod
def _unit_interval(value: object, name: str) -> float:
if isinstance(value, bool) or not isinstance(value, (int, float)):
raise ValueError(f"{name} must be a number between 0 and 1")
return float(value)
def validate(self, request: JobRequest) -> ValidatedJob:
if request.workload != self.manifest.workload:
raise ValueError(
"similarity-search received a request for another workload"
)
parameters = request.parameters
unknown = set(parameters) - {
"query_id",
"query_smiles",
"top_k",
"threshold",
"threshold_direction",
"max_rows",
"progress_every",
}
if unknown:
raise ValueError(
"unsupported similarity-search parameters: "
+ ", ".join(sorted(unknown))
)
query_id = parameters.get("query_id")
query_smiles = parameters.get("query_smiles")
if (query_id is None) == (query_smiles is None):
raise ValueError("exactly one of query_id or query_smiles is required")
if query_id is not None:
self._string(query_id, "query_id")
if query_smiles is not None:
self._string(query_smiles, "query_smiles")
self._positive_int(parameters.get("top_k", 20), "top_k")
if "max_rows" in parameters:
self._positive_int(parameters["max_rows"], "max_rows")
if "progress_every" in parameters:
self._nonnegative_int(parameters["progress_every"], "progress_every")
if "threshold" in parameters:
self._unit_interval(parameters["threshold"], "threshold")
if "threshold_direction" in parameters and parameters[
"threshold_direction"
] not in {"greater", "less"}:
raise ValueError("threshold_direction must be 'greater' or 'less'")
return ValidatedJob(request, self._resolved_parameters(request))
def _resolved_parameters(self, request: JobRequest) -> dict[str, object]:
parameters = request.parameters
query_id = parameters.get("query_id")
if isinstance(query_id, str):
query_source: dict[str, str] = {"kind": "chembl_id", "value": query_id}
else:
query_source = {
"kind": "smiles",
"value": self._string(parameters.get("query_smiles"), "query_smiles"),
}
resolved: dict[str, object] = {
"query_source": query_source,
"top_k": self._positive_int(parameters.get("top_k", 20), "top_k"),
"threshold_direction": parameters.get("threshold_direction", "greater"),
"fingerprint": {
"algorithm": "morgan",
"radius": FP_RADIUS,
"fp_size": FP_SIZE,
},
}
if "threshold" in parameters:
resolved["threshold"] = self._unit_interval(
parameters["threshold"], "threshold"
)
if "max_rows" in parameters:
resolved["max_rows"] = self._positive_int(
parameters["max_rows"], "max_rows"
)
if "progress_every" in parameters:
resolved["progress_every"] = self._nonnegative_int(
parameters["progress_every"], "progress_every"
)
return resolved
def plan(self, job: ValidatedJob, context: PlanningContext) -> WorkflowPlan:
if not isinstance(job, ValidatedJob):
raise ValueError("job must be a ValidatedJob")
collection = job.request.inputs.get("input")
if collection is None:
raise ValueError("similarity-search requires the input port")
self.input_port.validate_collection(collection, "job input")
input_artifact = collection.items[0].artifact
input_path = context.catalog.materialize(input_artifact)
workspace = context.workspace
workspace.mkdir(parents=True, exist_ok=True)
resolved = dict(job.resolved_parameters)
query_smiles = self._resolve_query(input_path, job.request.parameters)
resolved["query_smiles"] = query_smiles
max_rows = resolved.get("max_rows")
shard_paths = write_search_shards(
input_path,
workspace,
self.shard_rows,
int(max_rows) if isinstance(max_rows, int) else None,
)
task_parameters = {
key: value for key, value in resolved.items() if key in set(_MAP_PARAMETERS)
}
negotiated = context.negotiated
map_stage = self.manifest.workflow.stages[0]
assert map_stage.verifier is not None
tasks: list[TaskSpec] = []
for index, path in enumerate(shard_paths):
sealed = context.sink.seal(
path,
declaration=self.input_port.schema,
)
tasks.append(
TaskSpec(
workload=self.manifest.workload,
package_digest=self.manifest.package.digest,
manifest_digest=self.manifest.digest,
trust_mode=job.request.trust_mode,
sdk_api_version=negotiated.sdk_api_version,
protocol_version=negotiated.protocol_version,
manifest_schema_version=self.manifest.manifest_schema_version,
workflow_schema_version=self.manifest.workflow.schema_version,
environment_digest=self.manifest.environment.digest,
verifier=map_stage.verifier,
selected_features=negotiated.selected_features,
optional_fallbacks=negotiated.optional_fallbacks,
task_key=f"map/{index:08d}",
stage_id="map",
parameters=task_parameters,
inputs={"input": ArtifactCollection.single(sealed)},
expected_outputs={"partial": self.partial_port},
resources=map_stage.resources,
execution=map_stage.execution,
)
)
return WorkflowPlan(
workload=self.manifest.workload,
package_digest=self.manifest.package.digest,
manifest_digest=self.manifest.digest,
trust_mode=job.request.trust_mode,
sdk_api_version=negotiated.sdk_api_version,
protocol_version=negotiated.protocol_version,
manifest_schema_version=self.manifest.manifest_schema_version,
workflow_schema_version=self.manifest.workflow.schema_version,
environment_digest=self.manifest.environment.digest,
verifier=self.manifest.verifier.verifier,
selected_features=negotiated.selected_features,
optional_fallbacks=negotiated.optional_fallbacks,
workflow_id=self.manifest.workflow.workflow_id,
resolved_parameters=resolved,
tasks=tuple(tasks),
)
@staticmethod
def _resolve_query(input_path: Path, parameters: Mapping[str, object]) -> str:
query_id = parameters.get("query_id")
if isinstance(query_id, str):
record = find_molecule_by_id(input_path, query_id)
return Chem.MolToSmiles(record.molecule, canonical=True)
supplied = parameters["query_smiles"]
assert isinstance(supplied, str)
molecule = parse_smiles(supplied)
if molecule is None:
raise ValueError("query_smiles is invalid")
return Chem.MolToSmiles(molecule, canonical=True)
def run(self, context: TaskContext) -> OutputManifest:
context.cancellation.raise_if_cancelled()
collection = context.task.inputs.get("input")
if collection is None:
raise ValueError("search map task requires one input collection")
self.input_port.validate_collection(collection, "search map input")
source = context.catalog.materialize(collection.items[0].artifact)
workspace = context.workspace
workspace.mkdir(parents=True, exist_ok=True)
input_path = workspace / "input"
output_path = workspace / "result.csv"
if source.resolve() != input_path.resolve():
shutil.copyfile(source, input_path)
metrics = run_search_shard(
input_path,
context.task.parameters,
output_path,
)
context.cancellation.raise_if_cancelled()
sealed = context.sink.seal(
output_path,
declaration=self.partial_port.schema,
)
return OutputManifest(
context.task.task_key,
{"partial": ArtifactCollection.single(sealed)},
metrics,
context.provenance,
).validate_against(
context.task.expected_outputs,
max_output_bytes=self.manifest.limits.max_output_bytes,
)
def reduce(self, context: ReduceContext) -> OutputManifest:
context.cancellation.raise_if_cancelled()
collection = context.accepted_inputs.get("partials")
if (
collection is None
or collection.kind is not CollectionKind.KEYED
or not collection.items
):
raise ValueError(
"search reducer requires a non-empty keyed partial collection"
)
self.manifest.workflow.stages[1].inputs["partials"].validate_collection(
collection,
"search reducer partials",
)
workspace = context.workspace
workspace.mkdir(parents=True, exist_ok=True)
indexed_items: list[tuple[int, ArtifactItem]] = []
for item in collection.items:
key = item.key or ""
prefix = "map."
raw_index = key[len(prefix) :] if key.startswith(prefix) else ""
if len(raw_index) != 8 or not raw_index.isdigit():
raise ValueError("search partial key must use map.<eight-digit-index>")
indexed_items.append((int(raw_index), item))
expected_keys = context.task.expected_input_keys.get("partials")
if expected_keys is None or {item.key for item in collection.items} != set(
expected_keys
):
raise ValueError(
"search partial keys do not match the coordinator expected set"
)
if sorted(index for index, _ in indexed_items) != list(
range(len(indexed_items))
):
raise ValueError("search partial keys must be complete and contiguous")
partial_paths: list[Path] = []
for index, item in sorted(indexed_items):
artifact: ArtifactRef = item.artifact
source = context.catalog.materialize(artifact)
target = workspace / artifact.artifact_id
if source.resolve() != target.resolve():
shutil.copyfile(source, target)
if _sha256_file(target) != artifact.sha256:
raise ValueError("materialized partial checksum does not match")
partial_paths.append(target)
result_path = workspace / "result.csv"
metrics = merge_search_partials(
partial_paths,
context.task.parameters,
result_path,
)
context.cancellation.raise_if_cancelled()
sealed = context.sink.seal(
result_path,
declaration=self.output_port.schema,
)
return OutputManifest(
context.task.task_key,
{"result": ArtifactCollection.single(sealed)},
metrics,
context.provenance,
).validate_against(
context.task.expected_outputs,
max_output_bytes=self.manifest.limits.max_output_bytes,
)
def similarity_search_sdk_definition(
*,
shard_rows: int = 10_000,
package_digest: str | None = None,
environment_digest: str | None = None,
) -> SimilaritySearchSDKWorkload:
"""Build the SDK-built similarity-search definition for tests."""
return SimilaritySearchSDKWorkload(
shard_rows=shard_rows,
package_digest=package_digest or current_scimesh_package_digest(),
environment_digest=environment_digest or current_environment_digest(),
)
def workload_definition() -> WorkloadDefinition:
"""Installed entry-point factory for the SDK-built similarity-search."""
return similarity_search_sdk_definition().definition()