[Users] problem on running bbh expample

[Cory Chu]

Hi Ian

I'am running on VirtualBox set whit 2 Processors and 8GB RAM

When i try with this submit command

create-submit mybbh --parfile par/BBHLowRes.par --num-threads=1 --procs=2

I get following message in .err file

WARNING level 0 from host kpc-VirtualBox process 0
  while executing schedule bin (none), routine (no thorn)::(no routine)
  in thorn Carpet, file
/home/kuangtly/programming/ET/forfun/Cactus/arrangements/Carpet/Carpet/src/SetupGH.cc:153:
  -> The environment variable CACTUS_NUM_PROCS is set to 2, but there are 1
MPI processes. This may indicate a severe problem with the MPI startup
mechanism.
cactus_sim:
/home/kuangtly/programming/ET/forfun/Cactus/arrangements/Carpet/Carpet/src/helpers.cc:275:
int Carpet::Abort(const cGH*, int): Assertion `0' failed.
Rank 0 with PID 15985 received signal 6
Writing backtrace to BBHLowRes/backtrace.0.txt
Aborted (core dumped)


i have change these setting in .ini file
ppn =2
max-num-threads =2
num-threads =2



On Fri, Dec 23, 2016 at 6:28 PM, Ian Hinder <ian.hinder at aei.mpg.de> wrote:

>
> On 23 Dec 2016, at 10:52, Cory Chu <cory.yk.chu at gmail.com> wrote:
>
> Erik
>
> Should I simply change the .ini file in simfactory/mdb/machines
> with
> ppn = 2
> max-num-threads = 2
> num-threads = 2
>
> and adding --procs = 2 on running command ?
>
> sorry i just can not find a detail documentation on this part
> after i change the above setting
> the problem did not solved
>
>
> Hi Cory,
>
> Can you give the command line you are using to submit the simulation?  You
> need to ensure that the number of MPI processes you use is larger.  You
> could do this by running fewer threads per process, or if you are already
> running one thread per process, by increasing the number of processes by
> increasing the number of threads.  That might mean reconfiguring the
> machine definition to allow more cores to be used than you actually have.
> What machine is it; i.e. how many processors and cores do you have?
>
> --
> Ian Hinder
> http://members.aei.mpg.de/ianhin
>
>
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