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Update sycl/doc/EnvironmentVariables.md
Co-authored-by: Piotr Balcer <[email protected]>
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sycl/doc/EnvironmentVariables.md

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@@ -159,7 +159,7 @@ For a description of parallel for range rounding in DPC++ see
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| `SYCL_ENABLE_PCI` (Deprecated) | Integer | When set to 1, enables obtaining the GPU PCI address when using the Level Zero backend. The default is 1. This option is kept for compatibility reasons and is immediately deprecated. |
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| `SYCL_PI_LEVEL_ZERO_DISABLE_USM_ALLOCATOR` | Any(\*) | Disable USM allocator in Level Zero adapter (each memory request will go directly to Level Zero runtime) |
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| `SYCL_PI_LEVEL_ZERO_TRACK_INDIRECT_ACCESS_MEMORY` | Any(\*) | Enable support of the kernels with indirect access and corresponding deferred release of memory allocations in the Level Zero adapter. |
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| `SYCL_UR_USE_LEVEL_ZERO_V2` | Integer | Enable ('1') or disable ('0') the use of the Level Zero V2 adapter, which features a redesigned architecture aimed at optimizing performance for different queue modes (immediate/batched, in-order/out-of-order). This version is expected to reduce runtime overhead and currently only support immediate command lists. This adapter is used by default on platorms with a Battlemage or newer GPU. If you experience any performance or functional issues with this adapter enabled, please report them on GitHub, specifying the adapter used. |
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| `SYCL_UR_USE_LEVEL_ZERO_V2` | Integer | Enable ('1') or disable ('0') the use of the Level Zero V2 adapter, which features a redesigned architecture aimed at optimizing performance for different queue modes (immediate/batched, in-order/out-of-order). This version is expected to reduce runtime overhead and currently only support immediate command lists. By default, this adapter is used on platforms with GPUs based on the Xe2 architecture or later, such as Battlemage, Lunar Lake, and Arrow Lake. If you experience any performance or functional issues with this adapter enabled, please report them on GitHub, specifying the adapter used. |
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`(*) Note: Any means this environment variable is effective when set to any non-null value.`
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