Ticket

#18198

Problem description

Some maxpool width sharded tests fail on blackhole because they had non-tile multiple width per shard.

What's changed

Shard is padded to tile multiple in those cases. Also that is applied in cases where shard width is greater than 32, because case when shard is 16 is still valid. Values less than 32 and not equal to 16 are invalid and assert will be triggered.

Checklist

• All post commit CI passes - https://github.com/tenstorrent/tt-metal/actions/runs/13650400447
• Blackhole Post commit CI passes (if applicable)
• Model regression CI passes (if applicable) - https://github.com/tenstorrent/tt-metal/actions/runs/13652246635 https://github.com/tenstorrent/tt-metal/actions/runs/13652242921
• Device performance regression CI passes (if applicable)
• (For models and ops writers) Full new models tests CI passes (if applicable)
• New/Existing tests provide coverage for changes