diff --git a/4a1s/CP/PL - Aula 8.md b/4a1s/CP/PL - Aula 8.md
index e69de29..9e044cd 100644
--- a/4a1s/CP/PL - Aula 8.md	
+++ b/4a1s/CP/PL - Aula 8.md	
@@ -0,0 +1,16 @@
+
+>[!note] Initial commands
+>module load gcc/11.2.0 
+>gcc -O2 -fopenmp -lm exe1.c -o exe1.out
+>./exe1.out 
+
+
+## Ex 1
+### a) Valores de pi
+|           | 2PUs | 4PUs |
+| --------- | ---- | ---- |
+| critical  |    3.1415927770    |      |
+| atomic    |      |      |
+| reduction |      |      |
+
+