Remove autotune sharing.

xla_gpu_shard_autotuning can be used now instead and it is enabled by default.

PiperOrigin-RevId: 705792463

jax/_src/compiler.py

@@ -18,8 +18,6 @@
 
 from collections.abc import Sequence
 import logging
-import os
-import tempfile
 import time
 from typing import Any, Callable
 import warnings
@@ -449,22 +447,6 @@ def compile_or_get_cached(
         cache_key,
         min_device_process_id
     )
-  elif (
-      config.share_autotune_config_between_hosts.value
-      and is_multi_process
-      and distributed.global_state.client is not None
-  ):
-    log_persistent_cache_miss(module_name, cache_key)
-    return _compile_and_write_autotune_config(
-        backend,
-        computation,
-        compile_options,
-        host_callbacks,
-        distributed.global_state.client,
-        module_name,
-        cache_key,
-        min_device_process_id
-    )
   else:
     log_persistent_cache_miss(module_name, cache_key)
     return _compile_and_write_cache(
@@ -608,113 +590,6 @@ def _share_fdo_profiles(
 
 _share_fdo_profiles.modules_profiles = {}
 
-
-# The process with the first_process_id should compile the module and write an
-# autotune config to the K-V storage.
-def _compile_and_write_autotune_config(
-    backend: xc.Client,
-    computation: ir.Module,
-    compile_options: xc.CompileOptions,
-    host_callbacks: Sequence[Any],
-    global_client: lib.xla_extension.DistributedRuntimeClient,
-    module_name: str,
-    cache_key: str,
-    first_process_id: int
-) -> xc.LoadedExecutable:
-  share_timeout = config.share_binary_between_hosts_timeout_ms.value
-  debug_options = compile_options.executable_build_options.debug_options
-
-  if _compile_and_write_autotune_config.autotune_configs_dir is None:
-    _compile_and_write_autotune_config.autotune_configs_dir = tempfile.mkdtemp()
-
-  autotune_tmp_file = os.path.join(
-      _compile_and_write_autotune_config.autotune_configs_dir, cache_key
-  )
-
-  if os.path.exists(autotune_tmp_file):
-    logger.debug(
-        "Compiling module: %s. Use existing autotune config file: %s",
-        module_name,
-        autotune_tmp_file,
-    )
-    debug_options.xla_gpu_load_autotune_results_from = autotune_tmp_file
-    return _compile_and_write_cache(
-        backend,
-        computation,
-        compile_options,
-        host_callbacks,
-        module_name,
-        cache_key,
-    )
-
-  if distributed.global_state.process_id == first_process_id:
-    debug_options.xla_gpu_dump_autotune_results_to = autotune_tmp_file
-    logger.debug("Process %d compiling and dumping autotune for module: %s",
-                 first_process_id, module_name)
-    executable = _compile_and_write_cache(
-        backend,
-        computation,
-        compile_options,
-        host_callbacks,
-        module_name,
-        cache_key,
-    )
-
-    logger.debug(
-        "Writing autotune config for module %s to %s",
-        module_name,
-        autotune_tmp_file,
-    )
-    with open(autotune_tmp_file, "rb") as f:
-      autotune_config = f.read()
-
-    autotune_config = compilation_cache.compress_executable(autotune_config)
-    global_client.key_value_set_bytes(cache_key, autotune_config)
-    logger.debug(
-        "Autotune config for module %s with size %d shared by cache_key %s",
-        module_name,
-        len(autotune_config),
-        cache_key,
-    )
-  else:
-    logger.debug(
-        "Compiling module %s, waiting for config to be shared by cache_key %s"
-        "from process %d",
-        module_name,
-        cache_key,
-        first_process_id
-    )
-    autotune_config = global_client.blocking_key_value_get_bytes(
-        cache_key, share_timeout
-    )
-
-    logger.debug(
-        "Received autotune config for module %s of size %d",
-        module_name,
-        len(autotune_config),
-    )
-    autotune_config = compilation_cache.decompress_executable(autotune_config)
-    with open(autotune_tmp_file, "wb") as f:
-      f.write(autotune_config)
-
-    logger.debug(
-        "Compiling module %s, using autotune config from %s",
-        module_name,
-        autotune_tmp_file,
-    )
-    debug_options.xla_gpu_load_autotune_results_from = autotune_tmp_file
-    executable = _compile_and_write_cache(
-        backend,
-        computation,
-        compile_options,
-        host_callbacks,
-        module_name,
-        cache_key,
-    )
-  return executable
-
-_compile_and_write_autotune_config.autotune_configs_dir = None
-
 # The process with the first_process_id should compile the module and write it
 # to the K-V storage.
 def _compile_and_share_module(

jax/_src/config.py

@@ -1169,20 +1169,6 @@ def _update_jax_memories_thread_local(val):
     ),
 )
 
-share_autotune_config_between_hosts = bool_state(
-    name='jax_share_autotune_config_between_hosts',
-    default=False,
-    help=(
-        'If set to True, the coordinator process will share autotune configs '
-        'other participants. This will increase overall compilation time, but '
-        'will lead to equal compiled modules in each process. '
-        'If both jax_share_binary_between_hosts and '
-        'jax_share_autotune_config_between_hosts are set, compiled HLO will be '
-        "shared when it's possible and autotune config sharing will be used "
-        'as a fallback.'
-    ),
-)
-
 share_binary_between_hosts = bool_state(
     name='jax_share_binary_between_hosts',
     default=False,