Bug#1062356: adios2: flaky autopkgtest (host dependent): times out on big host

[Drew Parsons]

Source: adios2
Followup-For: Bug #1062356

Can't be quite as simple as just the host machine.

https://ci.debian.net/data/autopkgtest/unstable/amd64/a/adios2/41403641/log.gz
completed in 9 minutes,
while
https://ci.debian.net/data/autopkgtest/unstable/amd64/a/adios2/41496866/log.gz
failed with timeout.

But that was ci-worker13 in both cases.
Maybe it's a race condition.

Might be simplest to just skip insituGlobalArraysReaderNxN_mpi
though I can also review how many CPUs are invoked by the test.
Usually safer not to run tests on all 64 available cpus, for instance,
if there are that many on the machine.