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  1. #PETSc 3.19 has been released. Some highlights:

    * Sparse matrices have good perf w/out user-provided preallocation.
    * Optimal simplex quadrature up to 20th.
    * -dm_plex_shape zbox creates a "born parallel" mesh with Z-order partition.
    * "Isoperiodicity": late mapping enables simple traversal of manifolds adjacent to periodic connections.
    * Scalable CGNS output: high order elements and flexible batching of time series.
    * Perf/GPU improvements.
    * Coordinate-based SF graph.

    petsc.org/release/changes/319/

  2. When does a fluids mini-app cease to be "mini"? What separates Colorful Fluid Dynamics (CFD; h/t @kpdooty) from a tool for science?

    I'd argue it's when you collect turbulent statistics and get careful about statistical convergence. Our fluids mini-app was created to drive #libCEED and #PETSc library integration, but has now taken this step as it transforms into an instrument to explain how RANS models fail (and what they need to succeed). With a 10x strong scaling boost so far.

    #HPC

  3. When does a fluids mini-app cease to be "mini"? What separates Colorful Fluid Dynamics (CFD; h/t @kpdooty) from a tool for science?

    I'd argue it's when you collect turbulent statistics and get careful about statistical convergence. Our fluids mini-app was created to drive and library integration, but has now taken this step as it transforms into an instrument to explain how RANS models fail (and what they need to succeed). With a 10x strong scaling boost so far.

  4. When does a fluids mini-app cease to be "mini"? What separates Colorful Fluid Dynamics (CFD; h/t @kpdooty) from a tool for science?

    I'd argue it's when you collect turbulent statistics and get careful about statistical convergence. Our fluids mini-app was created to drive #libCEED and #PETSc library integration, but has now taken this step as it transforms into an instrument to explain how RANS models fail (and what they need to succeed). With a 10x strong scaling boost so far.

    #HPC

  5. When does a fluids mini-app cease to be "mini"? What separates Colorful Fluid Dynamics (CFD; h/t @kpdooty) from a tool for science?

    I'd argue it's when you collect turbulent statistics and get careful about statistical convergence. Our fluids mini-app was created to drive #libCEED and #PETSc library integration, but has now taken this step as it transforms into an instrument to explain how RANS models fail (and what they need to succeed). With a 10x strong scaling boost so far.

    #HPC

  6. @tgamblin @danibanez Indeed! We also have #libCEED and (partial) #PETSc bindings. @TimoBetcke is also working on Rust for scientific computing/linear algebra. And you might be interested in conversations at rust-scicomp.zulipchat.com/

  7. @tgamblin @danibanez Indeed! We also have and (partial) bindings. @TimoBetcke is also working on Rust for scientific computing/linear algebra. And you might be interested in conversations at rust-scicomp.zulipchat.com/

  8. @tgamblin @danibanez Indeed! We also have #libCEED and (partial) #PETSc bindings. @TimoBetcke is also working on Rust for scientific computing/linear algebra. And you might be interested in conversations at rust-scicomp.zulipchat.com/

  9. @tgamblin @danibanez Indeed! We also have #libCEED and (partial) #PETSc bindings. @TimoBetcke is also working on Rust for scientific computing/linear algebra. And you might be interested in conversations at rust-scicomp.zulipchat.com/