diff --git a/README.md b/README.md
index 06f9349..9a17452 100644
--- a/README.md
+++ b/README.md
@@ -1,30 +1,58 @@
-#Miniapp to test GBS gradients #
 -------------------------------------------------------------------------------
-#To compile and run OpenMP with Offload implementation on izar with NVHPC #
+# Miniapp to test GBS gradients with Makefile #
+-------------------------------------------------------------------------------
+#To compile with Makefile and run OpenMP with Offload implementation on izar with NVHPC #
+-------------------------------------------------------------------------------
 module load nvhpc/21.2-mpi
 make
 srun -p debug --gres=gpu:1 ./gbs_gradients
 -------------------------------------------------------------------------------
-#To compile and run OpenMP with Offload implementation on izar with gcc
+#To compile with Makefile and run OpenMP with Offload implementation on izar with gcc
+-------------------------------------------------------------------------------
 module load gcc
 #modify FLAGS and FC in Makefile uncommenting the corresponding lines
 make
 srun -p debug --gres=gpu:1 ./gbs_gradients
 
 -------------------------------------------------------------------------------
-#To compile and run OpenMP with Offload implementation on piz-daint with cce compiler
+#To compile with Makefile and run OpenMP with Offload implementation on piz-daint with cce compiler
+-------------------------------------------------------------------------------
 module load daint-gpu
 module load craype-accel-nvidia60
 module load cudatoolkit
 export CRAY_ACCEL_TARGET=nvidia60
 git checkout compile_without_openacc # branch with acc pragmas commented
 #modify FLAGS and FC in Makefile uncommenting the corresponding lines
 make
 srun --gres=gpu:1 -c 12 -N 1 -n 1 --time=00:15:00 --account=g26 -C gpu ./gbs_gradients
 -------------------------------------------------------------------------------
-#To compile and run CUDA C implementation on izar with gcc
+#To compile with Makefile and run CUDA C implementation on izar with gcc
+-------------------------------------------------------------------------------
 module load gcc nvhpc/21.2-mpi
 #modify FLAGS and FC in Makefile uncommenting the corresponding lines
 make gbs_gradients_cuda
 srun -p debug --gres=gpu:1 ./gbs_gradients
-
+-------------------------------------------------------------------------------
+# To compile with CMAKE with gnu on izar #
+-------------------------------------------------------------------------------
+module load gcc cmake 
+mkdir build
+cd build
+cmake ..
+make
+-------------------------------------------------------------------------------
+# To compile with CMAKE with nvhpc on izar #
+-------------------------------------------------------------------------------
+module load nvhpc/21.2-mpi cmake 
+mkdir build
+cd build
+cmake ..
+make
+-------------------------------------------------------------------------------
+# To compile using CUDA with CMAKE on izar #
+-------------------------------------------------------------------------------
+module load gcc cuda cmake
+mkdir build
+cd build
+cmake -DUSE_CUDA=1 ..
+make