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README.md
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README.md
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# POET
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POET is a coupled reactive transport simulator implementing a parallel
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architecture and a fast distributed hash table.
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architecture and a fast, original MPI-based Distributed Hash Table.
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## External Libraries
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We use external libraries:
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The following external header library is shipped with POET:
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- **argh** - https://github.com/adishavit/argh (BSD license)
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@ -24,20 +24,19 @@ To compile POET you need several software to be installed:
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- R language and environment
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- CMake 3.9+
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If documantiation should be build during compilation `doxygen`and `graphviz`
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must be provided too.
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If you want to build documentation during compilation, `doxygen`and `graphviz` must be provided too.
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The following R libraries must then be installed:
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The following R libraries must then be installed, which will get the needed dependencies automatically:
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- [devtools](https://www.r-project.org/nosvn/pandoc/devtools.html)
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- [Rcpp](https://cran.r-project.org/web/packages/Rcpp/index.html)
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- [RInside](https://cran.r-project.org/web/packages/RInside/index.html)
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- [RedModRphree](https://gitext.gfz-potsdam.de/delucia/RedModRphree)
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- [Rmufits](https://gitext.gfz-potsdam.de/delucia/Rmufits)
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- [RedModRphree](https://git.gfz-potsdam.de/delucia/RedModRphree)
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- [Rmufits](https://git.gfz-potsdam.de/delucia/Rmufits)
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### Compiling source code
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The generation of makefiles is done with CMake. If you obtain POET from a git repository you should be able to generate Makefiles by running
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The generation of makefiles is done with CMake. If you obtained POET from git, you should be able to generate Makefiles by running
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```sh
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mkdir build && cd build
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@ -79,8 +78,8 @@ $ R
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# install R dependencies
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> install.packages(c("devtools", "Rcpp", "RInside"))
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> devtools::install_git("https://gitext.gfz-potsdam.de/delucia/RedModRphree.git")
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> devtools::install_git("https://gitext.gfz-potsdam.de/delucia/Rmufits.git")
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> devtools::install_gitlab("delucia/RedModRphree", host="https://git.gfz-potsdam.de")
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> devtools::install_gitlab("delucia/Rmufits", host="https://git.gfz-potsdam.de")
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> q(save="no")
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# cd into POET project root
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@ -94,8 +93,8 @@ $ make install
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```
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This will install a POET project structure into `/home/<user>/poet` which is
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called hereinafter `<POET_INSTALL_DIR>`. With this version of POET I would not
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recommend to install to hierarchies like `/usr/local/` etc.
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called hereinafter `<POET_INSTALL_DIR>`. With this version of POET we **do not
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recommend** to install to hierarchies like `/usr/local/` etc.
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The correspondending directory tree would look like this:
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@ -115,12 +114,12 @@ The correspondending directory tree would look like this:
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└── parallel_r_library.R
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```
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The R libraries will be read in during runtime and the paths are hardcoded
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The R libraries will be loaded at runtime and the paths are hardcoded
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absolute paths inside `poet.cpp`. So, if you consider to move `bin/poet` either
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change paths of the R source files and recompile POET or also move `R_lib/*`
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according to the binary.
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To display the generetated html documentation just open `docs/html/index.html`
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To display the generated html documentation just open `docs/html/index.html`
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with the browser of your choice.
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## Running
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@ -155,7 +154,7 @@ The following parameters can be set:
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#### Additions to `dht-signif`
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Only used if no vector is given in setup file. For individual valuies per column
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Only used if no vector is given in setup file. For individual values per column
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use R vector `signif_vector` in `SIMFILE`.
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#### Additions to `dht-snaps`
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@ -171,9 +170,10 @@ Following values can be set:
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### Example: Running from scratch
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We will continue the above example and start a simulation with `SimDol2D.R`,
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which is the only simulation supported at this moment. To start the simulation
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with 4 processes `cd` into your previously installed POET-dir
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`<POET_INSTALL_DIR>/bin` and run:
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which is the only simulation supported at this moment. The required flow velocities
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snapshots are included in the R package Rmufits. It's a 2D, 50x50 grid, with 20 time
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steps. To start the simulation with 4 processes `cd` into your previously installed
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POET-dir `<POET_INSTALL_DIR>/bin` and run:
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```sh
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mpirun -n 4 ./poet ../data/SimDol2D.R output
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@ -182,7 +182,7 @@ mpirun -n 4 ./poet ../data/SimDol2D.R output
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After a finished simulation all data generated by POET will be found in the
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directory `output`.
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You might want to use the DHT to cache previously simulated data points and
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You might want to use the DHT to cache previously simulated data and
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reuse them in further time-steps. Just append `-dht` to the options of POET to
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activate the usage of the DHT. The resulting call would look like this:
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@ -190,15 +190,6 @@ activate the usage of the DHT. The resulting call would look like this:
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mpirun -n 4 ./poet -dht SimDol2D.R output
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```
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## Examples included (more to come)
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- **SimDol2D.R** - simple chemistry (Calcite/Dolomite) on a 50x50 2D grid, 20
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time steps 2)
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- ~~**SimDolKtz.R** - simple chemistry (Calcite/Dolomite) on Ketzin grid (~650k
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elements), 20 time steps The flow snapshots are **NOT INCLUDED** in project
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directory but must be provided separately.~~ At this moment **SimDolKtz.R** is
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not supported.
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## About the usage of MPI_Wtime()
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Implemented time measurement functions uses `MPI_Wtime()`. Some important
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