[inductor] Fix bugs in emulate_precision_casts#163520
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jansel wants to merge 4 commits intogh/jansel/546/basefrom
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[inductor] Fix bugs in emulate_precision_casts#163520jansel wants to merge 4 commits intogh/jansel/546/basefrom
jansel wants to merge 4 commits intogh/jansel/546/basefrom
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🔗 Helpful Links🧪 See artifacts and rendered test results at hud.pytorch.org/pr/163520
Note: Links to docs will display an error until the docs builds have been completed. ✅ No FailuresAs of commit 49b28d4 with merge base 51152ef ( This comment was automatically generated by Dr. CI and updates every 15 minutes. |
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eellison
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| if ( | ||
| not isinstance(func, torch._ops.OpOverload) | ||
| or torch.Tag.pointwise not in func.tags | ||
| ): |
Comment on lines
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| if not output_low_precision: | ||
| for input_node in last_node.all_input_nodes: | ||
| val = input_node.meta.get("val") if hasattr(input_node, "meta") else None | ||
| if isinstance(val, torch.Tensor) and val.dtype in low_pr_fp: | ||
| output_low_precision = True | ||
| break |
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Thinking out loud:
For something like
x: bfloat16
y = x.to(float32)
This would set low_precision_pointwise_barrier on the x.to(float32) output. I guess this is okay because its actual dtype later in lowering will be float32, so we'll ignore it.
And the decomps themselves should be upcasting intermediaries to be fp32, so those will also get ignored, e.g. gelu here.
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|
Starting merge as part of PR stack under #163482 |
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pytorchmergebot
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This reverts commit a8cd437. See #163481 (comment) This PR might also cause issues with cudagraphs. Pull Request resolved: #163737 Approved by: https://github.com/ezyang ghstack dependencies: #163386, #163398, #163387, #163414, #163415, #163419, #163434, #163393, #163412, #163422, #163481, #163520, #163482
dsashidh
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Sep 26, 2025
Fixes pytorch#163449 Pull Request resolved: pytorch#163520 Approved by: https://github.com/eellison ghstack dependencies: pytorch#163386, pytorch#163398, pytorch#163387, pytorch#163414, pytorch#163415, pytorch#163419, pytorch#163434, pytorch#163393, pytorch#163412, pytorch#163422, pytorch#163481
dsashidh
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Sep 26, 2025
Fixes pytorch#163457 Pull Request resolved: pytorch#163482 Approved by: https://github.com/eellison ghstack dependencies: pytorch#163386, pytorch#163398, pytorch#163387, pytorch#163414, pytorch#163415, pytorch#163419, pytorch#163434, pytorch#163393, pytorch#163412, pytorch#163422, pytorch#163481, pytorch#163520
dsashidh
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This reverts commit a8cd437. See pytorch#163481 (comment) This PR might also cause issues with cudagraphs. Pull Request resolved: pytorch#163737 Approved by: https://github.com/ezyang ghstack dependencies: pytorch#163386, pytorch#163398, pytorch#163387, pytorch#163414, pytorch#163415, pytorch#163419, pytorch#163434, pytorch#163393, pytorch#163412, pytorch#163422, pytorch#163481, pytorch#163520, pytorch#163482
jainapurva
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jainapurva
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jainapurva
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This reverts commit a8cd437. See #163481 (comment) This PR might also cause issues with cudagraphs. Pull Request resolved: #163737 Approved by: https://github.com/ezyang ghstack dependencies: #163386, #163398, #163387, #163414, #163415, #163419, #163434, #163393, #163412, #163422, #163481, #163520, #163482
Khanaksahu
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Fixes #163449 ghstack-source-id: e173d84 Pull-Request: pytorch/pytorch#163520
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Stack from ghstack (oldest at bottom):
Fixes #163449
cc @ezyang @EikanWang @jgong5 @wenzhe-nrv @voznesenskym @penguinwu @Guobing-Chen @XiaobingSuper @zhuhaozhe @blzheng @jiayisunx @ipiszy @chenyang78 @kadeng @muchulee8 @amjames @chauhang @aakhundov @coconutruben