Release Notes

This is a major release, adding several new features and fixes several bugs and portability issues, including:

• Stress formulation
• Zone initial condition
• Field initial condition
• Support for HDF5
• OIFS time scheme
• LES models, currently limited to CPU and SX backends
• Gradient jump penalty
• Revamped fluid statistics providing several new features
• More simulation components:
  • Computation of the derivative of a field
  • Computation of forces and torque on a surface
  • Computation of the weak gradient of a field
  • Computation of the spectral error indicator
  • User defined components
  • Fluid statistics
• Refactored source tree, change to submodules
• Reworked build system, now support building a shared/dynamic libneko

Known Issues

• Problems with recent Cray Fortran compilers: #200
• Problems with NVIDIA Fortran after the switch to submodules: #1447

Full Changelog: v0.8.0...v0.9.0

Release Notes

This is a minor bug fix release, addressing issues in CSV file reader/writer and boundary conditions symmetry and non_normal.

Known Issues

• Problems with recent Cray Fortran compilers: #200
• OpenCL backend limited to a single queue (stream): #1056

Full Changelog: v0.8.0...v0.8.1

Release Notes

This is a major release, adding several new features and fixes several bugs and portability issues, including:

• Immersed boundary based on Brinkmann forcing (#1142)
• User defined Dirichlet boundary conditions (#985)
• Variable time-stepping (#1148)

Known Issues

• Problems with recent Cray Fortran compilers: #200
• OpenCL backend limited to a single queue (stream): #1056

Full Changelog: v0.7.0...v0.8.0

Release Notes

This is the second release candidate for v0.8.0

Full Changelog: v0.7.2...v0.8.0-rc2

Release Notes

This is the first release candidate for v0.8.0

Full Changelog: v0.7.2...v0.8.0-rc1

Release Notes

This is a minor bug fix release, addressing issues in the distribution scripts for including examples and patches

Known Issues

• Problems with recent Cray Fortran compilers: #200
• OpenCL backend limited to a single queue (stream): #1056

Release Notes

This is a minor bug fix release, addressing issues for high-order restarts (#1047 #1070) and none averaged flow rate (#1073)

Known Issues

• Problems with recent Cray Fortran compilers: #200
• OpenCL backend limited to a single queue (stream): #1056

Release Notes

This is a major release, adding several new features and fixes several bugs and portability issues, including:

• Change the format of the case file to JSON (#886)
• Add a simulation component framework (#825)
• Add support for probes (#827, #972)
• Add support for multiple types of source terms (#824)

Note: These are breaking changes, older case files (<= 0.6.1) must be converted to JSON.

Furthermore, this release also improves the performance of the accelerator backend by including the task-decomposed pressure preconditioner presented at SC'23 (https://doi.org/10.1145/3581784.3627039). The new preconditioner is enabled by default if Neko is built using OpenMP and GPU-aware MPI.

Known Issues

• Problems with recent Cray Fortran compilers: #200
• OpenCL backend limited to a single queue (stream): #1056

Release Notes

This is a minor bug fix release, addressing issues in the CFL calculation when using device-aware MPI (#903) and regressions in the OpenCL backend (boundary conditions and scalar solver)

Known Issues

• Problems with recent Cray Fortran compilers: #200

Release Notes

This release adds support for statistics, extends the accelerator backend with full OpenCL support, and fixes several bugs and portability issues.

Known Issues

• Problems with recent Cray Fortran compilers: #200