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36 lines
1.7 KiB
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36 lines
1.7 KiB
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.. meta::
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:description: hipFile environment variables
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:keywords: hipFile, environment variables, HIPFILE_ALLOW_COMPAT_MODE, HIPFILE_FORCE_COMPAT_MODE, HIPFILE_STATS_LEVEL, HIPFILE_UNSUPPORTED_FILE_SYSTEMS, ROCm, AMD
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******************************
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hipFile environment variables
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******************************
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The following environment variables affect the hipFile runtime.
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.. list-table::
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:header-rows: 1
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:widths: 28 72
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* - Environment variable
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- Values
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* - ``HIPFILE_ALLOW_COMPAT_MODE``
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- | Controls whether device-memory I/O that can't use the direct-to-GPU fastpath uses fallback I/O.
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| When ``HIPFILE_FORCE_COMPAT_MODE`` is ``true`` and ``HIPFILE_ALLOW_COMPAT_MODE`` is ``false``, I/O fails.
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| ``true``: Use fallback I/O when fastpath can't be used. (default)
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| ``false``: I/O that can't use fastpath fails.
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* - ``HIPFILE_FORCE_COMPAT_MODE``
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- | Forces the use of fallback I/O without attempting to use fastpath.
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| ``true``: Always use fallback I/O.
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| ``false``: Use fastpath when possible. (default)
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* - ``HIPFILE_STATS_LEVEL``
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- | Controls how much information hipFile collects for the ``ais-stats`` tool.
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| ``0``: Histogram recording is disabled.
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| ``1``: Collect per-GPU and per-backend bandwidth, latency, and error histograms. (default)
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* - ``HIPFILE_UNSUPPORTED_FILE_SYSTEMS``
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- | Controls whether fastpath is used with unsupported file systems.
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| ``true``: Fastpath is used with any file system without validation.
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| ``false``: Fastpath is only used with supported file systems. (default)
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| Must be set to ``true`` when using NFSoRDMA on Linux
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