vinx13 commented on a change in pull request #8820:
URL: https://github.com/apache/tvm/pull/8820#discussion_r694322843
##########
File path: python/tvm/autotvm/tuner/xgboost_cost_model.py
##########
@@ -327,14 +329,9 @@ def _get_feature(self, indexes):
if need_extract:
pool = self._get_pool()
- # If we are forking, we can pass arguments in globals for better
performance
- if multiprocessing.get_start_method(False) == "fork":
- feas = pool.map(self.feature_extract_func, need_extract)
- else:
- args = [(self.space.get(x), self.target, self.task) for x in
need_extract]
- feas = pool.map(self.feature_extract_func, args)
+ feas = pool.map_with_error_catching(self.feature_extract_func,
need_extract)
for i, fea in zip(need_extract, feas):
- fea_cache[i] = fea
+ fea_cache[i] = fea.value
Review comment:
```suggestion
fea_cache[i] = fea.value if fea.status ==
StatusKind.COMPLETE else None
```
let's be cautious with potential failure in rare cases
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