Fix a potential buffer size misaligning issue in TMA description of partition attention #3
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The TMA descriptor for attn_lse_intermediates is initialized based on the original number of SMs in the hardware during make_globals (in latency/scheduler.py). However, its actual allocated size is later rounded up to a multiple of 16 based on the number of SMs (in demos/low-latency-llama/attention_reduction.cu). This discrepancy leads to a failure when creating the TMA descriptor.