From 1ea638411ea62f2fde602bf09b2badf120f3ce3e Mon Sep 17 00:00:00 2001
From: Azza Ahmed <a.e.ahmed@tudelft.nl>
Date: Thu, 20 Feb 2025 10:13:59 +0100
Subject: [PATCH] Add GurobiPy installation and usage tutorial; adjust weights
for Apptainer and Customize your shell tutorials
---
content/en/tutorials/GurobiPy.md | 81 +++++++++++++++++++
content/en/tutorials/apptainer/index.md | 2 +-
.../tutorials/customize-your-shell/index.md | 2 +-
3 files changed, 83 insertions(+), 2 deletions(-)
create mode 100644 content/en/tutorials/GurobiPy.md
diff --git a/content/en/tutorials/GurobiPy.md b/content/en/tutorials/GurobiPy.md
new file mode 100644
index 0000000..f6fb0e5
--- /dev/null
+++ b/content/en/tutorials/GurobiPy.md
@@ -0,0 +1,81 @@
+---
+title: "Installing and Using GurobiPy on DAIC"
+linkTitle: "GurobiPy"
+weight: 3
+description: "Guide to installing and configuring GurobiPy on DAIC."
+---
+
+
+## Installation
+
+You can install GurobiPy using `pip` or `conda` in a virtual environment. Please refer to the [Managing Environment](docs/manual/software/installing-software/#managing-environments) manual for more information on using `pip` and `conda`.
+
+```bash
+# Using pip (in a virtual environment or with --user)
+pip install gurobipy
+
+# Or using Conda (in a virtual environment)
+conda install gurobi::gurobi
+```
+
+## Using GurobiPy
+
+To use GurobiPy, you need to import the `gurobipy` module in your Python script. Here is an example script that creates a Gurobi model and solves it:
+
+{{< cardpane >}}
+{{< card header="tst_gurobi.py" code=true lang=python >}}
+import gurobipy as gp
+m = gp.Model()
+m.optimize()
+{{< /card >}}
+{{< /cardpane >}}
+
+You can run the script using the following command:
+
+
+```shell-session
+$ sinteractive --ntasks=2 --mem=2G --time=00:05:00
+$ python tst_gurobi.py
+Restricted license - for non-production use only - expires 2026-11-23
+Gurobi Optimizer version 12.0.1 build v12.0.1rc0 (linux64 - "Red Hat Enterprise Linux")
+
+CPU model: AMD EPYC 7543 32-Core Processor, instruction set [SSE2|AVX|AVX2]
+Thread count: 64 physical cores, 64 logical processors, using up to 32 threads
+
+Optimize a model with 0 rows, 0 columns and 0 nonzeros
+Model fingerprint: 0xf9715da1
+Coefficient statistics:
+ Matrix range [0e+00, 0e+00]
+ Objective range [0e+00, 0e+00]
+ Bounds range [0e+00, 0e+00]
+ RHS range [0e+00, 0e+00]
+Presolve time: 0.01s
+Presolve: All rows and columns removed
+Iteration Objective Primal Inf. Dual Inf. Time
+ 0 0.0000000e+00 0.000000e+00 0.000000e+00 0s
+
+Solved in 0 iterations and 0.01 seconds (0.00 work units)
+Optimal objective 0.000000000e+00
+```
+
+## Configuring the License
+
+If needed, and since DAIC uses a remote license server, you can specify the license settings in your script:
+
+```python
+import gurobipy as gp
+
+connection_params = {
+ "TokenServer": "flexserv-x1.tudelft.nl",
+ "TSPort": "27099"
+}
+
+with gp.Env(params=connection_params) as env:
+ with gp.Model(env=env) as model:
+ try:
+ populate_and_solve(model)
+ except:
+ # Add appropriate error handling here.
+ raise
+```
+
diff --git a/content/en/tutorials/apptainer/index.md b/content/en/tutorials/apptainer/index.md
index 395acfc..fa96e04 100644
--- a/content/en/tutorials/apptainer/index.md
+++ b/content/en/tutorials/apptainer/index.md
@@ -1,6 +1,6 @@
---
title: "Apptainer tutorial"
-weight: 10
+weight: 2
description: >
Using Apptainer to containerize environments.
---
diff --git a/content/en/tutorials/customize-your-shell/index.md b/content/en/tutorials/customize-your-shell/index.md
index 6d76390..ae62a06 100644
--- a/content/en/tutorials/customize-your-shell/index.md
+++ b/content/en/tutorials/customize-your-shell/index.md
@@ -1,6 +1,6 @@
---
title: "Customize your shell"
-weight: 2
+weight: 1
description: >
After logging in to DAIC you can customize your shell.
---
--
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