diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 4fcbef6e1e4299246b713de213570fa19ee7ad3d..e1c3ee1e13f30758a22333f6335282755f6d4cac 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -8,5 +8,21 @@ adios2-variable-problem:
     - cd build
     - cmake ..
     - make
+    - mpirun --allow-run-as-root --oversubscribe -n 2 ./adios2mini 20000
+    - bpls checkpoint.bp | wc -l
+    - mpirun --allow-run-as-root --oversubscribe -n 3 ./adios2mini 20000
+    - bpls checkpoint.bp | wc -l
+    - mpirun --allow-run-as-root --oversubscribe -n 4 ./adios2mini 20000
+    - bpls checkpoint.bp | wc -l
+    - mpirun --allow-run-as-root --oversubscribe -n 5 ./adios2mini 20000
+    - bpls checkpoint.bp | wc -l
+    - mpirun --allow-run-as-root --oversubscribe -n 6 ./adios2mini 20000
+    - bpls checkpoint.bp | wc -l
+    - mpirun --allow-run-as-root --oversubscribe -n 7 ./adios2mini 20000
+    - bpls checkpoint.bp | wc -l
     - mpirun --allow-run-as-root --oversubscribe -n 8 ./adios2mini 20000
     - bpls checkpoint.bp | wc -l
+    - mpirun --allow-run-as-root --oversubscribe -n 9 ./adios2mini 20000
+    - bpls checkpoint.bp | wc -l
+    - mpirun --allow-run-as-root --oversubscribe -n 10 ./adios2mini 20000
+    - bpls checkpoint.bp | wc -l