Re: [PATCH] [gfortran] Add support for allocate clause (OpenMP 5.0).

[Thomas Schwinge <thomas@codesourcery.com>]

Hi!

On 2022-01-24T12:54:27+0000, Hafiz Abid Qadeer <abid_qadeer@mentor.com> wrote:
> On 24/01/2022 08:45, Tobias Burnus wrote:
>> On 21.01.22 18:15, Thomas Schwinge wrote:
>>> I'm seeing this test case randomly/non-deterministically FAIL to execute,
>>> differently on different systems and runs, for example: [...]
>>> I'd assume there's some concurrency issue: the problem disappears if I
>>> manually specify a lowerish 'OMP_NUM_THREADS'
>>
>> If one compiles the program with -fsanitize=thread, it shows tons of errors :-(

Confirmed.

> Did you notice similar behavior with
> libgomp/testsuite/libgomp.c-c++-common/allocate-1.c?

No, this one I always saw PASS.  (... which only means so much, of
course...)

> It was used as base for fortran testcase and it
> shows similar warnings with -fthread=sanitize.

Confirmed.

> I am trying to figure out if the problem you observed
> is a general one or just specific to fortran testcase.

So, unless the '-fsanitize=thread' issues are bogus -- unlikely ;-) -- it
seems a latent issue generally, now fatal with
'libgomp.fortran/allocate-1.f90'.


Grüße
 Thomas
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