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ActiveAIRelease2.28

viable/strict/1790353884: Skip `TestFullyShardSymmMem` for NCCL < 2.28 (#184536)

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What happened

NCCL_CTA_POLICY_ZERO was introduced with NCCL 2.28 so skip that test similar to NCCLCopyEngineCollectives . Pull Request resolved: #184536 Approved by: https://github.com/Skylion007

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