masahi commented on a change in pull request #10689:
URL: https://github.com/apache/tvm/pull/10689#discussion_r836245435
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File path: src/tir/schedule/primitive/sampling.cc
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@@ -299,22 +299,12 @@ std::vector<int64_t>
SamplePerfectTile(support::LinearCongruentialEngine::TRandS
return SamplePerfectTile(rand_state, extent, n_splits);
}
CHECK_GE(n_splits, 2) << "ValueError: Cannot tile a loop into " << n_splits
<< " splits";
- std::vector<int32_t> innermost_candidates;
- innermost_candidates.reserve(max_innermost_factor);
- for (int32_t i = 1; i <= max_innermost_factor; ++i) {
- if (extent % i == 0) {
- innermost_candidates.push_back(i);
+ while (true) {
+ std::vector<int64_t> result = SamplePerfectTile(rand_state, extent,
n_splits);
+ if (result.back() <= max_innermost_factor) {
+ return result;
Review comment:
I did that in the commit
https://github.com/apache/tvm/commit/f9c655ac1a024847876acd87d559043bb911b75b,
but it didn't fix the hang problem. I'll look into more this week.
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