non-equidistant/non-spatial axis support in openPMD

ComputationalRadiationPhysics / picongpu

Performance-Portable Particle-in-Cell Simulations for the Exascale Era :sparkles:

https://picongpu.readthedocs.io

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non-equidistant/non-spatial axis support in openPMD #4710

Open PrometheusPi opened 11 months ago

PrometheusPi commented 11 months ago

As soon as openPMD-api 2.0 is out, we should rework all plugins that use non-equidistant/non-spatial axis. We currently work around the limitations of openPMD by having an index axis instead of a real physical axis. This applies to:

binning plugin by @ikbuibui
shadowgraphy and CTR(?) plugin by @finnolec
radiation by @PrometheusPi
perhaps: phase space plugin (is equidistant by one axis is non-spatial)

Expert on the new feature is: @franzpoeschel

franzpoeschel commented 9 months ago

Relevant issue in openPMD-standard https://github.com/openPMD/openPMD-standard/issues/142 There is currently not yet a standardization of this feature in openPMD (but it is definitely needed)