diff --git a/karolina.csv b/karolina.csv
index 71e2fc3e3cacbd5c01abc2facccd722733474758..fb09daf2b7bc2ecaa6cc5c81bf0ad2fa709d732f 100644
--- a/karolina.csv
+++ b/karolina.csv
@@ -352,6 +352,8 @@ expat/2.6.2-GCCcore-13.3.0,1
 expecttest/0.1.5-GCCcore-12.3.0,1
 expecttest/0.2.1-GCCcore-13.2.0,1
 Extrae/3.8.3-gompi-2021a,1
+Extrae/4.2.3-gompi-2023b,1
+Extrae/4.2.3-nvompi-2024.3,1
 FFmpeg/4.3.2-GCCcore-10.3.0,1
 FFmpeg/4.3.2-GCCcore-11.2.0,1
 FFmpeg/4.4.2-GCCcore-11.3.0,1
diff --git a/karolina.md b/karolina.md
index 6b487152a1041d90c27322bd45607281132dfd49..7395e74256249a0b5cf8350853c756084bfddbd8 100644
--- a/karolina.md
+++ b/karolina.md
@@ -5,6 +5,12 @@
 | ------ | ----------- |
 | [PyTorch](https://pytorch.org/) | Tensors and Dynamic neural networks in Python with strong GPU acceleration. PyTorch is a deep learning framework that puts Python first. |
 
+## Base
+
+| Module | Description |
+| ------ | ----------- |
+| [Extrae](https://tools.bsc.es/extrae) | Extrae is the core instrumentation package developed by the Performance Tools group at BSC. It enables the instrumentation of applications using MPI, OpenMP, pthreads, CUDA, OpenCL, OpenACC, and GASPI, leveraging various instrumentation approaches. Extrae gathers information such as timestamped events of runtime calls, performance counters, and source code references. Additionally, it provides its own API, allowing users to manually instrument their applications. |
+
 ## Bio
 
 | Module | Description |