log why fail to gen golden ref (#170843)

shunting314 · meta-codesync[bot] · commit 99a0d9a86e49 · 2025-12-19T20:04:50.000-08:00
Summary: Sometimes when doing accuracy test with a large batch size, it fail due to the golden ref can not be generated. It would be helpful to log why we fail to generate the golden ref. In my case, it's due to OOM. X-link: pytorch/pytorch#170843 Approved by: https://github.com/malfet, https://github.com/Skylion007 Reviewed By: seemethere Differential Revision: D89589478 fbshipit-source-id: eba3f6611c105c4913b097ff704c697497b316c7
diff --git a/userbenchmark/dynamo/dynamobench/common.py b/userbenchmark/dynamo/dynamobench/common.py
@@ -2216,6 +2216,7 @@ def record_status(accuracy_status, dynamo_start_stats):
                 log.warning(
                     "fp64 golden ref were not generated for %s. Setting accuracy check to cosine",
                     name,
+                    exc_info=True,
                 )
                 self.args.cosine = True
                 fp64_outputs = None

Original file line number	Diff line number	Diff line change
`@@ -2216,6 +2216,7 @@ def record_status(accuracy_status, dynamo_start_stats):`
`2216`	`2216`	`log.warning(`
`2217`	`2217`	`"fp64 golden ref were not generated for %s. Setting accuracy check to cosine",`
`2218`	`2218`	`name,`
	`2219`	`+ exc_info=True,`
`2219`	`2220`	`)`
`2220`	`2221`	`self.args.cosine = True`
`2221`	`2222`	`fp64_outputs = None`