The parameter unit test is sometimes failing in parallel. On my local
machine it always seems to work with 2 or 3 processes, but sometimes
it fails with 4, giving the same error message as the buildbot:
##Failure Location unknown## : Error
Test name: InputOutput::test_simple
uncaught exception of type St13runtime_error
- *** Error: Unable to access parameter "filename" in parameter set
"test", par
ameter not defined.
Failures !!!
Run: 2 Failure total: 1 Failures: 0 Errors: 1
There is a check for which process writes to file and a barrier that
should make sure everyone waits until the file gets written.
// Save to file
if (dolfin::MPI::process_number() == 0)
{
File f0("test_parameters.xml");
f0 << p0;
}
dolfin::MPI::barrier();
// Read from file
Parameters p1;
File f1("test_parameters.xml");
f1 >> p1;
I thought that should do the trick, but apparently not.
Any ideas what goes wrong?
--
Anders
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