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A library for numerical weather prediction and climate modelling

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## Description This PR is intended to extend the group of the interpolation operations, in particular to: * implement a procedure to evaluate the _areas of the grid cells_ (grid...

contributor

1) add FielSet cummulative gpu operations: allocate_device, update_device ... 2) sync_host_device to skip unused fiels

Resovles #192. The problem is that when the pre-processor expands the macros the result contains lines of longer than 132 characters due to the length of the file paths. This...

contributor

### What happened? I got this build failure with nagfor: "/home/h01/frwd/cylc-run/mo-bundle-415/share/mo-bundle/atlas/src/atlas_f/field/atlas_Field_module.fypp", line 173: error: missing ". repeated many times. ### What are the steps to reproduce the bug? Compile with...

### What happened? The outermost atlas `mpi::Scope` does not restore the prior default eckit MPI communicator when it goes out of scope. See code snippet below. I suspect the problem...

### What happened? When attempting to set up a FunctionSpace whose grid points are all on one particular MPI task, I find the serial partitioner does not act the way...

### Is your feature request related to a problem? Please describe. Our application spends a lot of time applying the 'nonlinear' adjustment to the interpolation weights during interpolation. I believe...

Area extraction unit tests that fails with -np > 2

contributor

### Is your feature request related to a problem? Please describe. The matching mesh partitioning in all types but the cubed sphere requires `grid.domain().global()`. This is enforced by the `ASSERT`...

Type: Enhancement

Plan is to add a named mpi communicators into configuration objects passed to most data structures such as FunctionSpace