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https://github.com/microsoft/mscclpp.git
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fd76507e9a
### Summary Update the installer to place bundled default execution plans under `<MSCCLPP_CACHE_DIR>/default`, which is where the runtime already looks for bundled plans. ### Background The C++ runtime treats `MSCCLPP_CACHE_DIR` as the cache *root* and loads bundled default plans from `<cache root>/default`. When `MSCCLPP_CACHE_DIR` was set, the installer instead wrote bundled plans directly into the cache root, causing the runtime to miss them. This surfaced while running benchmarking tests with a non-default `MSCCLPP_CACHE_DIR`, where the bundled plans were not being discovered. ### Change This PR updates the installer to always install bundled default plans into `<MSCCLPP_CACHE_DIR>/default`, preserving the existing runtime contract. ### Scope - Installer-only change - No runtime behavior changes ### Validation Manual inspection of the updated install path. Successful build --------- Co-authored-by: Ekow Wellington <t-ekoww@microsoft.com>
99 lines
2.8 KiB
Python
99 lines
2.8 KiB
Python
# Copyright (c) Microsoft Corporation.
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# Licensed under the MIT License.
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import os
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import shutil
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import argparse
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from pathlib import Path
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from mscclpp import default_algos as def_algo
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from mscclpp.language.collectives import *
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from mscclpp.language.utils import AlgoSpec
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default_algo_configs = [
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{
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"filename": "allreduce_2nodes_1K_64K.json",
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"function": def_algo.allreduce_2nodes,
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"spec": AlgoSpec(
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name="allreduce_2nodes_1K_64K",
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collective=AllReduce(16, 1, True),
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nranks_per_node=8,
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world_size=16,
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in_place=True,
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instances=1,
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protocol="LL",
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auto_sync=False,
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num_threads_per_block=1024,
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reuse_resources=True,
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use_double_scratch_buffer=True,
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min_message_size=1 << 10,
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max_message_size=64 << 10,
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tags={"default": 1},
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),
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"additional_kwargs": {"thread_block_group_size": 1},
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},
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{
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"filename": "allreduce_2nodes_128K_2M.json",
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"function": def_algo.allreduce_2nodes,
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"spec": AlgoSpec(
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name="allreduce_2nodes_128K_2M",
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collective=AllReduce(16, 1, True),
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nranks_per_node=8,
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world_size=16,
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in_place=True,
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instances=1,
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protocol="LL",
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auto_sync=False,
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num_threads_per_block=1024,
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reuse_resources=True,
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use_double_scratch_buffer=True,
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min_message_size=128 << 10,
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max_message_size=2 << 20,
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tags={"default": 1},
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),
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"additional_kwargs": {"thread_block_group_size": 4},
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},
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]
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def create_default_plans():
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plan_dir = os.path.join(os.environ.get("MSCCLPP_CACHE_DIR", Path.home() / ".cache/mscclpp"), "default")
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plan_path = Path(plan_dir)
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if plan_path.exists():
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shutil.rmtree(plan_path)
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plan_path.mkdir(parents=True)
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for config in default_algo_configs:
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filename = config["filename"]
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func = config["function"]
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spec = config["spec"]
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additional_kwargs = config.get("additional_kwargs", {})
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plan_path = os.path.join(plan_dir, filename)
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try:
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if additional_kwargs:
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prog = func(spec, **additional_kwargs)
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else:
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prog = func(spec)
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with open(plan_path, "w", encoding="utf-8") as f:
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f.write(prog.to_json())
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f.flush()
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except Exception as e:
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print(f"Error creating plan for {spec.name}: {e}")
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continue
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def main():
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parser = argparse.ArgumentParser()
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parser.add_argument("--install", action="store_true", help="flag to install default plans")
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args = parser.parse_args()
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if args.install:
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create_default_plans()
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if __name__ == "__main__":
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main()
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