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Describe the current behavior / 问题描述 (Mandatory / 必填)

aclnnTopk调用时，对于小规模排序轴性能不理想，主要耗时在Transpose操作上，需要优化

Environment / 环境信息 (Mandatory / 必填)

ascend950

Steps to reproduce the issue / 重现步骤 (Mandatory / 必填)

对比竞品性能差距较大

Describe the expected behavior / 预期结果 (Mandatory / 必填)

性能和竞品相当

Related log / screenshot / 日志 / 截图 (Mandatory / 必填)

NA

Special notes for this issue/备注 (Optional / 选填)