Clemens,
I can't reproduce your error. Your 3-way configuration is running well on my computer (Centos 6.9, intel compiler) with v7p2r1 and v7p3r0 (I don't have v7p2r0 installed on my machine).
I only ran the 6 first hours, on 4 and 12 processors.
Something seems to be strange in your log file, the prompt instructions are repeated 4 times, as many times as your number of processors.
Please be sure that the installation is well performed for the parallel mode.
Did you have the same error with a sequential execution ? (PARALLEL PROCESSORS = 0, not 1)
Regards,
Laurent