[Users] Meudon_Mag_NS parfile output

[Shamim Haque 1910511]

Hi Zach,

I retried it on a workstation with fairly good configuration (80 threads,
256 GB RAM), where I ran test BNSM simulations. The problem remains the
same.

I cannot use more than 8 procs (num-threads 1) for this parfile. Otherwise,
it says, 'grid structure consistency check failed'. So, I guess this
simulation is not demanding too much memory. But is there a better way to
check how much memory is expected?

Secondly, I checked the error files from my old BNSM runs, those files also
contain the following lines indicating Invalid MIT-MAGIC-COOKIE-1 key:






























*+ mpirun --use-hwthread-cpus -np 10
/home/astro208/simulations/t1.4_had_1.4M/SIMFACTORY/exe/cactus_sim -L 3
/home/astro208/simulations/t1.4_had_1.4M/output-0000/t1.4_had_1.4M.parInvalid
MIT-MAGIC-COOKIE-1
key--------------------------------------------------------------------------WARNING:
No preset parameters were found for the device that Open MPIdetected:
Local host:            astro  Device name:           irdma0  Device vendor
ID:      0x8086  Device vendor part ID: 14289Default device parameters will
be used, which may result in lowerperformance.  You can edit any of the
files specified by thebtl_openib_device_param_files MCA parameter to set
values for yourdevice.NOTE: You can turn off this warning by setting the
MCA parameter      btl_openib_warn_no_device_params_found to
0.--------------------------------------------------------------------------No
OpenFabrics connection schemes reported that they were able to beused on a
specific port.  As such, the openib BTL (OpenFabricssupport) will be
disabled for this port.  Local host:           astro  Local device:
irdma1  Local port:           1  CPCs attempted:
udcm--------------------------------------------------------------------------Open
MPI failed an OFI Libfabric library call (fi_endpoint).  This is
highlyunusual; your job may behave unpredictably (and/or abort) after
this.  Local host: astro  Location: mtl_ofi_component.c:629  Error:
Unspecified error
(256)--------------------------------------------------------------------------*

These simulations ran successfully. Even though Invalid-MAGIC-COOKIE could
be a separate issue, it may not be the source of this particular problem,
but I could be totally wrong here.

Please let me know your thoughts on this.

Regards
Shamim Haque
Senior Research Fellow (SRF)
Department of Physics
IISER Bhopal
Shamim Haque
Senior Research Fellow (SRF)
Department of Physics
IISER Bhopal

ᐧ

On Thu, Oct 12, 2023 at 8:15 PM Zach Etienne <zachetie at gmail.com> wrote:

> Hi Shamim,
>
> Invalid MIT-MAGIC-COOKIE-1 key: This is related to X11 forwarding and
> authentication. The MIT-MAGIC-COOKIE-1 is an authentication scheme used by
> X11, the Linux windowing system. When you're trying to run a program that
> requires graphical output on a remote machine, the X11 system uses these
> "magic cookies" to authenticate the user. If there's a mismatch or the key
> is invalid, you will be denied permission.
>
> We believe the segmentation fault is probably due to running a parameter
> file on a computer that doesn't have enough memory. The error file seemed
> to indicate running on a laptop.
>
> -Zach
>
> *     *     *
> Zachariah Etienne
> Assoc. Prof. of Physics, U. of Idaho
> Adjunct Assoc. Prof. of Physics & Astronomy, West Virginia U.
> https://etienneresearch.com
> https://blackholesathome.net
>
>
> On Thu, Oct 12, 2023 at 6:34 AM Shamim Haque 1910511 <shamims at iiserb.ac.in>
> wrote:
>
>> Hello all,
>>
>> I am trying to use the bbig.par parameter file to extract the metric and
>> thermodynamic information for an isolated star ID from Lorene. This parfile
>> is available in Meudon_Mag_NS/par folder.
>>
>> I tried this par file with the given Lorene ID. It is supposed to exit
>> after iter 0 with IO outfiles. However, it does not give the requested
>> outputs upon completion of the simulation. I can see the Lorene information
>> is read correctly in the out file, but I am unable to find out the problem.
>>
>> I need some help with this. I have attached the parfile, ID, outfile and
>> error file for reference.
>>
>> Regards
>> Shamim Haque
>> Senior Research Fellow (SRF)
>> Department of Physics
>> IISER Bhopal
>> ᐧ
>> _______________________________________________
>> Users mailing list
>> Users at einsteintoolkit.org
>> http://lists.einsteintoolkit.org/mailman/listinfo/users
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.einsteintoolkit.org/pipermail/users/attachments/20231014/99cb1cb1/attachment-0001.htm>