MetOffice / MetOffice/socrates

src/aux/qsat_wat.F90 contains OpenMP directives, but is not compiled with OpenMP

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Dominant language
Fortran
Stars
15
Forks
22
PR merge metrics
No merged PRs in 30d

Description

And trying to build everything with OpenMP exposes this error:

```
gfortran -fopenmp -O -c qsat_wat.f90
qsat_wat.f90:535:61:

535 | & ( MAX(P(I),QS(I)) - ONE_MINUS_EPSILON*QS(I) )
| ^
Error: 'repsilon' not specified in enclosing 'parallel'
qsat_wat.f90:499:48:

499 | !$OMP& PRIVATE(fsubw, tt, atable, itable, i)
| ^
note: enclosing 'parallel'
qsat_wat.f90:535:61:

535 | & ( MAX(P(I),QS(I)) - ONE_MINUS_EPSILON*QS(I) )
| ^
Error: 'one_minus_epsilon' not specified in enclosing 'parallel'
qsat_wat.f90:499:48:

499 | !$OMP& PRIVATE(fsubw, tt, atable, itable, i)
| ^
note: enclosing 'parallel'
make: *** [Mk_pattern:10: qsat_wat.o] Fehler 1
```

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with src/aux/qsat_wat.F90, especially the OpenMP directive around line 499, and inspect the build rule that compiles qsat_wat.f90. Reproduce the reported gfortran -fopenmp failure, then verify that the file builds successfully with OpenMP enabled and that the normal build remains correct.

Written by the indexing model from the issue text.

Assessment

Tech stack
fortran
Domain
build-system, hpc
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Active
Clarity
Mostly clear
Newbie friendliness
68/100

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