14 Oct
2020
14 Oct
'20
10:30 a.m.
Dear Itaru,
the backend infrastructure is in the kernel and thus independent of the
user interface you are using. In SLI you can query the list of available
recording backends using
```
GetKernelStatus /recording_backends get info
```
and set the backend for a given recorder `recorder` using
```
recorder << /record_to /<backend_name> >> SetStatus
```
I just realized that I posted the link to my personal build of the
documentation, which has not been updated in a while. The *official* and
current version is actually here:
https://nest-simulator.readthedocs.io/en/latest/guides/recording_from_simul…
Cheers,
Jochen!
On 13.10.20 02:59, Itaru Kitayama wrote:
Jochen,
Is it usable from the SLI interface? I've been running NEST on Fugaku using SLI.
On Mon, Oct 12, 2020 at 8:27 PM Jochen Martin Eppler
<j.eppler(a)fz-juelich.de> wrote:
--
Dr. Jochen Martin Eppler
Phone: +49(2461)61-96653
----------------------------------
Simulation Laboratory Neuroscience
Jülich Supercomputing Centre
Institute for Advanced Simulation
Dear Itaru,
we have created the new I/O infrastructure (and the SIONlib backend in particular) to
address exactly the problem you describe. It is available in NEST master since quite some
time and the user-level documentation can be found here:
https://nest-simulator-jougs.readthedocs.io/en/latest/from_cpp/recording_ba…
In order to enable it, you first install SIONlib (see this script for an example on how
to do that) and then pass the path to NEST’s CMake using the
--Dwith-sionlib=<path>.
Once everything is installed, you can just set the record_to property of any recording
device to sionlib to let it write to SIONlib binary files. A minimal reader for the files
can be found here: https://github.com/nest/nest-sionlib-reader
Please let me know of any problems you run into. As this is quite new and has not been
tested extensively in the wild, there might still be some glitches.
Cheers,
Jochen!
On 09.10.20 08:55, Itaru Kitayama wrote:
Hi,
Has anyone explored the external library support? I am on Fugaku and
the jobs can create casually tens of thousands of files in a single directory;
this aborts jobs.
Itaru.
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--
Dr. Jochen Martin Eppler
Phone: +49(2461)61-96653
----------------------------------
Simulation Laboratory Neuroscience
Jülich Supercomputing Centre
Institute for Advanced Simulation
------------------------------------------------------------------------------------------------
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