my command: srun -n 4 ./oscillator -s 64,64,64 -b 64 -t 5 -f h5-osc.xml sample.osc

output:

WARNING: No subset specified. Writing all available data
Error: could not find appropriate neighbor for particle: (id 2780, position: (32.303, 11.4627, 55.0531), velocity: (-3.68322, -4.93237, 1.67584))

=========================================================
Process id 63460 Caught SIGABRT
Program Stack:
WARNING: The stack trace will not use advanced capabilities because this is a release build.
0x2aaaaaf8dc10 : ??? [(???) ???:-1]
0x2aaab2b28f67 : gsignal [(libc.so.6) ???:-1]
0x2aaab2b2a33a : abort [(libc.so.6) ???:-1]
0x475054 : Block::move_particles(float, diy::Master::ProxyWithLink const&) [(oscillator) ???:-1]
0x4551f3 : diy::Master::ProcessBlock::operator()() [(oscillator) ???:-1]
0x4573bf : diy::Master::execute() [(oscillator) ???:-1]
0x4576c3 : void diy::Master::foreach_<Block>(std::function<void (Block*, diy::Master::ProxyWithLink const&)> const&, std::function<bool (int, diy::Master const&)> const&) [(oscillator) ???:-1]
0x44545d : main [(oscillator) ???:-1]
0x2aaab2b14725 : __libc_start_main [(libc.so.6) ???:-1]
0x447bd9 : _start [(oscillator) ???:-1]