From be362d5e127e087dcd4a2c0d843cf7b9a7399c73 Mon Sep 17 00:00:00 2001 From: Tom de Vries Date: Thu, 20 Jan 2022 13:37:08 +0100 Subject: [PATCH] [libgomp, testsuite] Reduce recursion depth in declare_target-*.f90 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 * testsuite/libgomp.fortran/examples-4/declare_target-1.f90: Reduce recursion depth. * testsuite/libgomp.fortran/examples-4/declare_target-2.f90: Same. --- libgomp/testsuite/libgomp.fortran/examples-4/declare_target-1.f90 | 4 +++- libgomp/testsuite/libgomp.fortran/examples-4/declare_target-2.f90 | 6 ++++-- 2 files changed, 7 insertions(+), 3 deletions(-) diff --git a/libgomp/testsuite/libgomp.fortran/examples-4/declare_target-1.f90 b/libgomp/testsuite/libgomp.fortran/examples-4/declare_target-1.f90 index e439fe1..b761979 100644 --- a/libgomp/testsuite/libgomp.fortran/examples-4/declare_target-1.f90 +++ b/libgomp/testsuite/libgomp.fortran/examples-4/declare_target-1.f90 @@ -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 diff --git a/libgomp/testsuite/libgomp.fortran/examples-4/declare_target-2.f90 b/libgomp/testsuite/libgomp.fortran/examples-4/declare_target-2.f90 index ee582b2..f576c25 100644 --- a/libgomp/testsuite/libgomp.fortran/examples-4/declare_target-2.f90 +++ b/libgomp/testsuite/libgomp.fortran/examples-4/declare_target-2.f90 @@ -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) -- 2.7.4