amrex::callNoinline: Call given function without inline#4606
Merged
ax3l merged 3 commits intoAMReX-Codes:developmentfrom Aug 28, 2025
Merged
amrex::callNoinline: Call given function without inline#4606ax3l merged 3 commits intoAMReX-Codes:developmentfrom
ax3l merged 3 commits intoAMReX-Codes:developmentfrom
Conversation
This works on lambdas, functors, normal functions. But it does not work on overloaded functions like std::sin. If needed, one could however wrap functions like std::sin inside a lambda function. Here is the motivation behind this PR. In this impactx PR (BLAST-ImpactX/impactx#964), a GPU kernel uses 8 amrex::Parser's. The CUDA CI fails if more than one job is used in build. Apparently the kernel is too big because all those parser functions are inlined. This PR provides a way to reduce the size by forcing noinline.
Open
10 tasks
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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 works on lambdas, functors, normal functions. But it does not work on overloaded functions like std::sin. If needed, one could however wrap functions like std::sin inside a lambda function. It also does not work with normal
functions for SYCL and one would have to wrap it inside a lambda.
Here is the motivation behind this PR. In this impactx PR (BLAST-ImpactX/impactx#964), a GPU kernel uses 8 amrex::Parser's. The CUDA CI fails if more than one job is used in build. Apparently the kernel is too big because all those parser functions are inlined. This PR provides a way to reduce the size by forcing noinline.