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[libgomp, testsuite] Reduce recursion depth in declare_target-*.f90

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When running the libgomp testsuite with GOMP_NVPTX_JIT=-O0 using an nvptx
accelerator (Nvidia T400, 2GB), I run into:
...
libgomp: cuCtxSynchronize error: unspecified launch failure \
  (perhaps abort was called)

libgomp: cuMemFree_v2 error: unspecified launch failure

libgomp: device finalization failed
FAIL: libgomp.fortran/examples-4/declare_target-1.f90   -O0  execution test
...

The test-case contains:
...
  ! Reduced from 25 to 23, otherwise execution runs out of thread stack on
  ! Nvidia Titan V.
  if (fib (23) /= fib_wrapper (23)) stop 2
...

Fix this by reducing the fib/fib_wrapper argument from 23 to 22.

Same for declare_target-2.f90.

Tested on x86_64 with nvptx accelerator.

libgomp/ChangeLog:

2022-01-27  Tom de Vries  <tdevries@suse.de>

	* testsuite/libgomp.fortran/examples-4/declare_target-1.f90: Reduce
	recursion depth.
	* testsuite/libgomp.fortran/examples-4/declare_target-2.f90: Same.
This commit is contained in:
Tom de Vries 2022-01-20 13:37:08 +01:00
parent 2989516651
commit be362d5e12
2 changed files with 7 additions and 3 deletions
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4
libgomp/testsuite/libgomp.fortran/examples-4/declare_target-1.f90
View file

@ -29,5 +29,7 @@ program e_53_1
if (fib (15) /= fib_wrapper (15)) stop 1
! Reduced from 25 to 23, otherwise execution runs out of thread stack on
! Nvidia Titan V.
if (fib (23) /= fib_wrapper (23)) stop 2
! Reduced from 23 to 22, otherwise execution runs out of thread stack on
! Nvidia T400 (2GB variant), when run with GOMP_NVPTX_JIT=-O0.
if (fib (22) /= fib_wrapper (22)) stop 2
end program

6
libgomp/testsuite/libgomp.fortran/examples-4/declare_target-2.f90
View file

@ -6,9 +6,11 @@ program e_53_2
!$omp target map(from: x)
! Reduced from 25 to 23, otherwise execution runs out of thread stack on
! Nvidia Titan V.
x = fib (23)
! Reduced from 23 to 22, otherwise execution runs out of thread stack on
! Nvidia T400 (2GB variant), when run with GOMP_NVPTX_JIT=-O0.
x = fib (22)
!$omp end target
if (x /= fib (23)) stop 1
if (x /= fib (22)) stop 1
end program
integer recursive function fib (n) result (f)