Running eORCA1.L75-LEMAITRE4
============================

## Source code

Download NEMO code 4.2.1

```bash
git clone --branch 4.2.1 https://forge.nemo-ocean.eu/nemo/nemo.git nemo_4.2.1
```

Extract and install XIOS (trunk)

```bash
svn co http://forge.ipsl.jussieu.fr/ioserver/svn/XIOS/trunk xios_trunk
```

> revision 2605

## Setup

```bash
module purge
module load releases/2023a
module load netCDF-Fortran/4.6.1-gompi-2023a
```

## Benchmarks

|  CC   | Release | RES |  XIOS  | NEMO | #NODES | Optimization |  BEST WTIME per YEAR  |  WORST WTIME |
| ----- | --- | ---- | ------ | -------------- | ------ | ------- | ------------- | ------------ |
| `NE4_02_aio.sh` | gompi 2023a | e1 |   2  |  62  |  1    | -O3 | **38min**   |       |
| `NE4_00.sh` | gompi 2023a | e1 |   6  |  378  |  3    | -O3 | **1h18min**   |       |
| `NE4_01_aio.sh` | gompi 2023a | e1 |   9  |  247  |  2    | -O3 | **27min**   | **1h12min**      |
| `NE4_02.sh` | gompi 2023a | e1 |   6  |  1536  |      | -O3 | **2h05min**   |       |
| `NE4_03.sh` | gompi 2023a | e1 |   7  |  1017  |  8    | -O3 | **1h26min**   |       |

#### Same setup "AIO" on alternative machines:

|  CC   | Release | RES |  XIOS  | NEMO | #NODES | Optimization |  WTIME per YEAR  |
| ----- | --- | ---- | ------ | -------------- | ------ | ------- | ------------- |
| Nic5 | gompi 2021b | e1 |   9  |  247  |  4    | -O3 | **41min**   |
| Nic5 | gompi 2021b | e1 |   2  |  62  |  2    | -O3 | **1h35min**   |
| lucia | gompi 2022a | e1 |   9  |  247  |  2    | -O3 | **28min**   |
| lemaitre3 | gompi 2021b | e1 |   9  |  247  |  11    | -O3 | **45min**   |
| lemaitre3 | gompi 2021b | e1 |   2  |  62  |  3    | -O3 | **1h20min**   |