Open
Conversation
gmlueck
reviewed
Mar 20, 2026
| #ifdef __SYCL_DEVICE_ONLY__ | ||
| // New FP8 builtins | ||
| extern __DPCPP_SYCL_EXTERNAL sycl::half | ||
| __builtin_spirv_ClampConvertE4M3ToFP16INTEL(uint8_t) noexcept; |
Contributor
There was a problem hiding this comment.
I was just talking with @bashbaug today, and he mentioned that there is a multi-vendor SPIR-V extension for FP8 conversions. It looks like this PR is using the proposed Intel extension. I think this is the multi-vendor extension:
https://github.khronos.org/SPIRV-Registry/extensions/EXT/SPV_EXT_float8.html
@bashbaug do you know if our driver supports the multi-vendor extension? @dklochkov-emb does the multi-vendor extension provide all the functionality we need, or would we still need something from the Intel extension?
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
This PR adds FP8 types for CRI docs.
It adds the first part which includes:
This PR does not include e2e tests and checks behavior on the device due to driver and spirv translator issues - they will be added in the second part.