Merge branch 'master' into 'master'

Clp module

See merge request !163

docs.it4i/salomon/software/numerical-libraries/Clp.md

+
+# Clp
+
+## Introduction
+
+Clp (Coin-or linear programming) is an open-source linear programming solver written in C++. It is primarily meant to be used as a callable library, but a basic, stand-alone executable version is also available.
+
+Clp ([projects.coin-or.org/Clp](https://projects.coin-or.org/Clp)) is a part of the COIN-OR (The Computational Infrastracture for Operations Research) project ([projects.coin-or.org/](https://projects.coin-or.org/)).
+
+## Modules
+
+Clp, version 1.16.10 is available on Salomon via module Clp:
+
+```console
+$ ml Clp
+```
+
+The module sets up environment variables required for linking and running applications using Clp. This particular command loads the default module Clp/1.16.10-intel-2017a, Intel module intel/2017a and other related modules.
+
+## Compiling and linking
+
+!!! note
+    Link with -lClp
+
+Load the Clp module. Link using -lClp switch to link your code against Clp.
+
+```console
+$ ml Clp
+$ icc myprog.c -o myprog.x -Wl,-rpath=$LIBRARY_PATH -lClp
+```
+
+## Example
+
+An example of Clp enabled application follows. In this example, the library solves linear programming problem loaded from file.
+
+```cpp
+#include "coin/ClpSimplex.hpp"
+
+int main (int argc, const char *argv[])
+{
+    ClpSimplex  model;
+    int status;
+    if (argc<2)
+        status=model.readMps("/apps/all/Clp/1.16.10-intel-2017a/lib/p0033.mps");
+    else
+        status=model.readMps(argv[1]);
+    if (!status) {
+        model.primal();
+    }
+    return 0;
+}
+```
+
+### Load modules and compile:
+
+```console
+ml Clp
+icc lp.c -o lp.x -Wl,-rpath=$LIBRARY_PATH -lClp
+```
+
+In this example, the lp.c code is compiled using the Intel compiler and linked with Clp. To run the code, the Intel module has to be loaded.