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Merge pull request #25008 from skye:barrier

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PiperOrigin-RevId: 698461687
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jax authors 2024-11-20 11:34:35 -08:00
commit 1a3e693ad5
1 changed files with 1 additions and 1 deletions
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jax/_src/cloud_tpu_init.py
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@ -80,7 +80,7 @@ def cloud_tpu_init() -> None:
os.environ.setdefault('TPU_ML_PLATFORM', 'JAX')
os.environ.setdefault('TPU_ML_PLATFORM_VERSION', version.__version__)
os.environ.setdefault('ENABLE_RUNTIME_UPTIME_TELEMETRY', '1')
if '--xla_tpu_use_enhanced_launch_barrier' not in os.environ['LIBTPU_INIT_ARGS']:
if '--xla_tpu_use_enhanced_launch_barrier' not in os.environ.get('LIBTPU_INIT_ARGS', ''):
os.environ['LIBTPU_INIT_ARGS'] = os.environ.get('LIBTPU_INIT_ARGS','') + ' --xla_tpu_use_enhanced_launch_barrier=true'
# this makes tensorstore serialization work better on TPU