Optimize the omatcopy_cn/zomatcopy_cn kernels with RVV 1.0 intrinsic. #5056
Conversation
This file contains 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
…sic. Signed-off-by: tingbo.liao <tingbo.liao@starfivetech.com>
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
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Outdated suggestions cannot be applied.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.
Based on the scalar versions of omatcopy_cn/zomatcopy_cn, we optimized them with RVV 1.0 Intrinsic.
Subsequently, we conducted the functional and performance verifications on K230 and K1.
The performance data are shown as below:
Parameter setting: OPENBLAS_LOOPS = 10000.
1. K230 [C908, vlen = 128]@1.6GHz:
| Cases | Scalar / MFlops | Optimized RVV / MFlops |
| domatcopy.goto | 451.00 | 488.52 |
| zomatcopy.goto | 170.52 | 562.51 |
2. K1 [C908, vlen = 256]@1.6GHz:
| Cases | Scalar / MFlops | Optimized RVV / MFlops |
| domatcopy.goto | 354.33 | 468.74 |
| zomatcopy.goto | 176.64 | 603.88 |
In the above data, the bigger value is, the better performance is.