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@streeve streeve commented Apr 15, 2024

(don't plan to merge)

@streeve streeve marked this pull request as draft April 15, 2024 19:46
# Library capabilities

## Interpolation

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@kwitaechong is responsible for this section

linear algebra support for particle and grid operations.

# Statement of need

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@lebuller I will write this up once the rest of the document is mostly finished

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@streeve streeve Aug 12, 2024

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  • A robust and modular collection of PIC algorithms which are scalable and performance portable
  • What open source, portable packages exist? VPIC 2.0, PUMI-PIC, IPPL
  • Which ones are independent of application area (plasma, solid/fluid mechanics (MPM), astro)?
  • Which ones include implementations of the most cutting-edge algorithms (APIC, PolyPIC)? Not sure if the university codes are available



## Examples and performance testing

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@kwitaechong is writing the example on the dam break problem and merging to repo. I will help him writeup when complete


## Examples and performance testing


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Future work section is optional, but a mention of the new PIC scheme refs and how algorithmic development fits in here and/or app development would be good somewhere

  - Added parallel Hopf-Lax reference

`Picasso` provides an interface for various supported linear algebra types defined in `FieldTypes`: `Scalar`, `Vector`, `Matrix`, as well as specialized support for higher-rank `Tensor3`, `Tensor4`, and `Quaternion` types. Field tags need only derive from these types in order to make use of `Picasso` linear algebra features. Although all basic operations on vectors and matrices are implemented, several specialized operations are also available, including matrix determinant, inverse, exponential, LU, and SVD decompositions, higher-order tensor contractions, and quaternion-matrix conjugation.

## Interpolation
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Need to make sure to include what order each scheme goes up to

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5 participants