TravisCI: add centos build.

[fghoussen]

Pull request purpose

centos build

[fghoussen]

got similar pb on centos. no idea why ?! @dschwoerer : any clue ?

[dschwoerer]

It seems you are missing the *-devel files, namely openmpi-devel, blas-devel, lapack-devel

[fghoussen]

already tried that... but this was before upgrade. let's see

[dschwoerer]

Just wanted to note some additional repositories might be required, for centos 8: dnf config-manager --set-enabled PowerTools is required for epel.
https://fedoraproject.org/wiki/EPEL#How_can_I_use_these_extra_packages.3F

[fghoussen]

not used to centos. trying tricks provided by collegues. will give up if dead end.

[fghoussen]

openmpi KO, mpich OK. @dschwoerer : thanks !

[coveralls]

Pull Request Test Coverage Report for Build 1311

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 70.611%

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Totals
Change from base Build 1309:	0.0%
Covered Lines:	16513
Relevant Lines:	23386

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💛 - Coveralls

[sylvestre]

Excellent, you could probably add this to the release notes?
CI: Support for centos added in automation

[fghoussen]

I feel always using same compilersgcc and openmpi which breaks here... Try to add another build with autotools + clang ?...

[fghoussen]

openmpi sucks on centos... no better than this

[dschwoerer]

What issues are you having with openmpi on centos?

[fghoussen]

@dschwoerer : tests crash. don't know why. added error log tail in hope to get traces

[fghoussen]

mpirun has detected an attempt to run as root. Running as root is strongly discouraged as any mistake (e.g., in defining TMPDIR) or bug can result in catastrophic damage to the OS file system, leaving your system in an unusable state. We strongly suggest that you run mpirun as a non-root user. You can override this protection by adding the --allow-run-as-root option

Oh men ! Already hit this problem : openmpi crashes because it's doesn't like been ran by root and you must be root in docker. openmpi could be used with that kind of stuff

arpack-ng/.travis.yml

Line 214 in e508181

sed -e 's/LOG_FLAGS = /LOG_FLAGS = --allow-run-as-root --oversubscribe /' -i PARPACK/EXAMPLES/MPI/Makefile.am && \

on CMakeLists.txt. Something like sed -e 's/mpirun /mpirun --allow-run-as-root --oversubscribe /' -i CMakeLists.txt should work before cmake ...

[dschwoerer]

That is however not the only problem, see #268 for more issues.
https://travis-ci.org/github/opencollab/arpack-ng/jobs/697378825

Unfortunately I don't know what causes this.

[fghoussen]

May be related : https://bugzilla.redhat.com/show_bug.cgi?id=1744780, open-mpi/ompi#6671

[fghoussen]

BTW, as openmpi is broken, reset-hard to mpich.