https://github.com/huidaecho/midas

Memory-Efficient I/O-Improved Drainage Analysis System (MIDAS)
https://github.com/huidaecho/midas

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Memory-Efficient I/O-Improved Drainage Analysis System (MIDAS)

• Host: GitHub
• URL: https://github.com/huidaecho/midas
• Owner: HuidaeCho
• Created: 2024-04-16T21:56:13.000Z (7 months ago)
• Default Branch: master
• Last Pushed: 2024-07-11T19:34:43.000Z (4 months ago)
• Last Synced: 2024-07-11T22:39:26.481Z (4 months ago)
• Language: Batchfile
• Homepage:
• Size: 42.6 MB
• Stars: 2
• Watchers: 1
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

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README

        
# Memory-Efficient I/O-Improved Drainage Analysis System (MIDAS)

Flow direction encoding in GeoTIFF:


![image](https://github.com/HuidaeCho/mefa/assets/7456117/6268b904-24a4-482e-8f6d-9ec9c4edf143)

## Binaries for Windows

* [MEFA](https://github.com/HuidaeCho/mefa) (Memory-Efficient Flow Accumulation)

* [MESHED](https://github.com/HuidaeCho/meshed) (Memory-Efficient Watershed Delineation)

* MELFP (Memory-Efficient Longest Flow Path)

* MEFLEN (Memory-Efficient Flow Length)

## Testing

```dos

git clone https://github.com/HuidaeCho/midas.git

cd midas\windows\test

pretest.bat

test.bat

```

## Benchmark results

### MEFA

![MEFA Graphical Abstract](https://idea.isnew.info/publications/Memory-efficient%20flow%20accumulation%20using%20a%20look-around%20approach%20and%20its%20OpenMP%20parallelization%20-%20Graphical%20abstract.png)

System specifications

* CPU: Intel Core i9-12900 @ 2.40GHz

* Cores: 16

* Logical processors: 24

* Memory: 64 GiB

* OS: Windows 11

Citation

* Huidae Cho, July 2023. Memory-Efficient Flow Accumulation Using a Look-Aroun d Approach and Its OpenMP Parallelization. Environmental Modelling & Software 167, 105771. [doi:10.1016/j.envsoft.2023.105771](https://doi.org/10.1016/j.envsoft.2023.105771).

### MESHED

![image](https://clawrim.isnew.info/wp-content/uploads/2024/07/meshed-flyer.png)

### MELFP

![image](https://github.com/HuidaeCho/midas/assets/7456117/0c1fdd15-b900-407c-b89b-503a6c0b2dc2)

### MEFLEN

![image](https://github.com/HuidaeCho/midas/assets/7456117/3a67d9ec-8649-4d24-97a7-b5d3dd5115c7)

System specifications

* CPU: Intel Core i9-12900 @ 2.40GHz

* Cores: 16

* Logical processors: 24

* Memory: 64 GiB

* OS: Windows 11

  * Downstream flow length (compute time only)

    * Texas results

      * 8.2 s (24 threads)

      * 19.6 s (1 thread)

    * CONUS results

      * 4.7 m (24 threads)

      * 7.3 m (1 thread)

* OS: Linux 6.6.30

  * Downstream flow length (compute time only)

    * Texas results

      * 9.4 s (24 threads)

      * 20.0 s (1 thread)

    * CONUS results

      * 2.0 m (24 threads)

      * 4.0 m (1 thread)