Skip to content

Improve error condition handling #292

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom
Open
bonachea wants to merge 8 commits into
base: main
Choose a base branch
from
Open

Improve error condition handling #292

bonachea wants to merge 8 commits into from

Conversation

@bonachea
Copy link
Member

@bonachea bonachea commented Jan 30, 2026

Fixes #87
Fixes #128

Example out-of-memory message:

ERROR STOP 'Fortran shared heap is out of memory
  while allocating 500 TiB of additional coarray memory.

  Shared heap size information:
    Total shared heap:               1 GiB    (CAF_HEAP_SIZE)
    Total non-coarray heap:        102 MiB    (CAF_COMP_FRAC * CAF_HEAP_SIZE)
    Current team coarray heap:     921 MiB

  Consider setting the CAF_HEAP_SIZE environment variable to request a larger heap.'

@bonachea
issue BerkeleyLab#87: Ensure optional stat gets zeroed in PRIF calls …
79365c0 
…that cannot generate non-fatal errors
@bonachea
prif_deallocate_coarrays: Factor stat/errmsg reporting
3d0f61f
@bonachea
caf_caffeinate: Improvements to segment size handling
549a319 
* Enforce segment size invariants

The symmetric and non-symmetric heaps must each be sized on page boundaries.

Previously some tiny or misaligned values of CAF_HEAP_SIZE would cause startup
time crashes inside caf_caffeinate or dlmalloc.

* Expose more shared heap information up into Fortran

* Convert heap size manipulation from size_t to (u)intptr_t
@bonachea
program_termination_s: Excise all list-directed output
d142ea6 
The use of list-directed output in `prif_(error_)stop(stop_code_char)`
was leading to processor-defined line break behavior, which is
quite poor in practice with flang.
@bonachea
issue BerkeleyLab#128: prif_allocate(_coarray): Add error reporting f…
8f4a6f2 
…or shared heap exhaustion
@bonachea
test/prif_allocate_test: add coverage for out-of-memory errors
870611d
@bonachea
Update implementation-status
097a427
@bonachea
Add support-test/out_of_memory
8352db1
@bonachea bonachea requested a review from ktras January 30, 2026 02:10
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Reviewers

@ktras ktras Awaiting requested review from ktras

At least 1 approving review is required to merge this pull request.

Assignees

No one assigned

Labels

None yet

Projects

None yet

Milestone

No milestone

Development

Successfully merging this pull request may close these issues.

Add proper handling of shared memory exhaustion Ensure all PRIF calls with an optional stat argument actually set it when present

1 participant

@bonachea