Handle unreduced axes in NamedSharding.#38164
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Handle unreduced axes in NamedSharding.#38164copybara-service[bot] wants to merge 1 commit intomainfrom
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This change modifies the SPMD partitioner to correctly handle NamedShardings that specify unreduced axes. When an unreduced NamedSharding is encountered, the axes marked as unreduced are converted to replicated axes within the NamedSharding. Additionally, a frontend attribute is added to the HLO to indicate that unreduced axes were present and handled. PiperOrigin-RevId: 869173922
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Handle unreduced axes in NamedSharding.
This change modifies the SPMD partitioner to correctly handle NamedShardings that specify unreduced axes. When an unreduced NamedSharding is encountered, the axes marked as unreduced are converted to replicated axes within the NamedSharding. Additionally, a frontend attribute is added to the HLO to indicate that unreduced axes were present and handled.