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From GitBox <...@apache.org>
Subject [GitHub] [incubator-tvm] FrozenGene opened a new issue #5215: [AutoTVM] AutoTVM incorrect measurement
Date Thu, 02 Apr 2020 02:13:34 GMT
FrozenGene opened a new issue #5215: [AutoTVM] AutoTVM incorrect measurement
URL: https://github.com/apache/incubator-tvm/issues/5215
 
 
   Our AutoTVM use `debug_skip_region` to skip our precompute stage (like precompute kernel).
However, `debug_skip_region` can not reflect practical running, which just only create empty
tensor for it. Empty tensor will make AutoTVM record the performance incorrect. This condition
will become worse like Winograd. In Winograd, our weight shape will be changed from (KH, KW,
CO, CI) to (alpha, alpha, CO, CI). Alpha equals to `tile_size + KH - 1`. If tile_size is 4
(KH is 3), then alpha is 6. So to avoid this issue, we should avoid using `debug_skip_region`
in all platforms of AutoTVM template and use the technique like this PR: https://github.com/apache/incubator-tvm/pull/5200.
   
   Open this issue to track this.

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