Tests fail due to regular expressions not being found

[Vishnu V. Krishnan]

I was just building with gcc 9.1 and MPICH 3.3.1, and all the tests fail with the following message:

***Failed  Required regular expression not found.Regex=[Test passed.

Am I doing something wrong?

[Zaak Beekman]

Hi Vishnu,

I'm guessing that there's an issue with the MPI launcher, or a shared lib.

To debug test failures, try:

`export CTEST_OUTPUT_ON_FAILURE=ON` to get verbose output when the tests fail.

How are you building the library and test suite?

Thanks,

Zaak

[Vishnu V. Krishnan]

I'm building it using the AUR build-script.

The output from one of the failed tests is as follows:

76/77 Test #76: issue-515-mimic-mpi-gatherv ..........***Failed Required

regular expression not found.Regex=[Test passed.

] 0.05 sec
Fatal error in PMPI_Init_thread: Other MPI error, error stack:
MPIR_Init_thread(572)..............:
MPID_Init(224).....................: channel initialization failed
MPIDI_CH3_Init(105)................:
MPID_nem_init(324).................:
MPID_nem_tcp_init(178).............:
MPID_nem_tcp_get_business_card(425):
MPID_nem_tcp_init(384).............: gethostbyname failed, latt (errno 1)
Fatal error in PMPI_Init_thread: Other MPI error, error stack:
MPIR_Init_thread(572)..............:
MPID_Init(224).....................: channel initialization failed
MPIDI_CH3_Init(105)................:
MPID_nem_init(324).................:
MPID_nem_tcp_init(178).............:
MPID_nem_tcp_get_business_card(425):
MPID_nem_tcp_init(384).............: gethostbyname failed, latt (errno 1)
Error: Command:
`/opt/mpich/bin/mpiexec -n 2 /tmp/makepkg/opencoarrays/src/
OpenCoarrays-2.7.1/build/bin/OpenCoarrays-2.7.1-tests/issue-515-mimic-mpi-
gatherv`
failed to run.

[Zaak Beekman]

To me, that looks like a problem with your MPI implementation. Can you compile and run a simple "hello parallel world" Fortran + MPI code?

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