diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 3c6f8358de4d95722ebaedb21908b7a4c805d0a8..e05637eec727fa40fcf88560df512531e375675a 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,5 +1,5 @@
 ---
-image: hpclib/hiepacs-openmpi
+image: hpclib/hiepacs
 
 stages:
   - build
diff --git a/.gitlab/env.sh b/.gitlab/env.sh
index ba10ea46f7bc71387f5460de42cabc72bfaa0442..83826702f54e5ceefad05c35d22aa018b3556494 100644
--- a/.gitlab/env.sh
+++ b/.gitlab/env.sh
@@ -1,6 +1,6 @@
 # Add OpenMPI to the environment
-export PATH=$OPENMPI_DIR/bin:$PATH
-export LD_RUN_PATH=$OPENMPI_DIR/lib:$LD_RUN_PATH
-export LD_LIBRARY_PATH=$OPENMPI_DIR/lib:$LD_LIBRARY_PATH
-export INCLUDE_PATH=$OPENMPI_DIR/include:$INCLUDE_PATH
-export PKG_CONFIG_PATH=$OPENMPI_DIR/lib/pkgconfig:$PKG_CONFIG_PATH
+# export PATH=$OPENMPI_DIR/bin:$PATH
+# export LD_RUN_PATH=$OPENMPI_DIR/lib:$LD_RUN_PATH
+# export LD_LIBRARY_PATH=$OPENMPI_DIR/lib:$LD_LIBRARY_PATH
+# export INCLUDE_PATH=$OPENMPI_DIR/include:$INCLUDE_PATH
+# export PKG_CONFIG_PATH=$OPENMPI_DIR/lib/pkgconfig:$PKG_CONFIG_PATH
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 815e11c4c9d80872f9f773bf36822a3314b6a07b..aa2a161b515d42c1b050c77f2d7192179ba4529c 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -89,7 +89,7 @@ foreach( version ${RUNTYPE} )
     set( tests_short_list ${SPM_TESTS} )
   endif()
   if( version STREQUAL "mpi" )
-    set( exe mpiexec -np 4 -host localhost:4 )
+    set( exe ${MPIEXEC_EXECUTABLE} -np 4 -host localhost:4 )
     set( tests_full_list  ${SPM_MPI_TESTS} )
     set( tests_short_list ${SPM_MPI_TESTS} )
   endif()
diff --git a/wrappers/fortran90/CMakeLists.txt b/wrappers/fortran90/CMakeLists.txt
index e960bda26de65637c6e92bd3d5f1a29c94c27e75..f968fa905a420cc8a85a6be627484fdc3c06ce3c 100644
--- a/wrappers/fortran90/CMakeLists.txt
+++ b/wrappers/fortran90/CMakeLists.txt
@@ -96,7 +96,7 @@ foreach (_file ${EXAMPLES})
       set( exe "")
     endif()
     if( version STREQUAL "mpi" )
-      set( exe mpiexec -np 4 --host localhost:4 )
+      set( exe ${MPIEXEC_EXECUTABLE} -np 4 --host localhost:4 )
     endif()
 
     add_test(${version}_fortran_${_name_we} ${exe} ./${_name_we})
diff --git a/wrappers/julia/CMakeLists.txt b/wrappers/julia/CMakeLists.txt
index 9d76620032ac3e1b6fcb598f94169a366a38084f..8b9720f2f9e13eadf67126038f3e2ec9113441c1 100644
--- a/wrappers/julia/CMakeLists.txt
+++ b/wrappers/julia/CMakeLists.txt
@@ -130,7 +130,7 @@ if ( Julia_ENABLE_TESTS )
 
     if (SPM_WITH_MPI)
       set( _test_name_ mpi_${_test_suffix_} )
-      add_test( ${_test_name_} mpiexec -np 4 --host localhost:4 ${Julia_EXECUTABLE} ${_test_file_} )
+      add_test( ${_test_name_} ${MPIEXEC_EXECUTABLE} -np 4 --host localhost:4 ${Julia_EXECUTABLE} ${_test_file_} )
       set_tests_properties( ${_test_name_}
         PROPERTIES ENVIRONMENT "${Julia_ENVIRONEMENT}" )
     endif()
diff --git a/wrappers/julia/spm_user.jl b/wrappers/julia/spm_user.jl
index ec389061467d27d9eac9ef150027a5cea8ea1f42..98282a87400e5e4caf02a7a58a2fdd851f76d87f 100755
--- a/wrappers/julia/spm_user.jl
+++ b/wrappers/julia/spm_user.jl
@@ -45,7 +45,6 @@ n    = dim1 * dim2 * dim3
 nnz  = (2*(dim1)-1) * dim2 * dim3 + (dim2-1)*dim1*dim3 + dim2*dim1*(dim3-1)
 
 #Create the spm out of the internal data
-
 spm.spmInit( Aptr )
 A.mtxtype = spm.SpmSymmetric
 A.flttype = spm.SpmDouble
@@ -55,11 +54,14 @@ A.nnz     = nnz
 A.dof     = 1
 
 spm.spmUpdateComputedFields( Aptr )
+
+# Allocate the arrays of the spm through C functions
 spm.spmAlloc( Aptr )
 
-row = zeros( spm.spm_int_t, nnz )
-col = zeros( spm.spm_int_t, nnz )
-val = zeros( Cdouble, nnz )
+# Get the pointer to the allocated arrays
+row = unsafe_wrap(Array, A.rowptr, A.nnzexp, own = false)
+col = unsafe_wrap(Array, A.colptr, A.nnzexp, own = false)
+val = unsafe_wrap(Array{Cdouble,1}, convert( Ptr{Cdouble}, A.values ), A.nnzexp, own = false)
 
 m = 1
 for i in 1:dim1
@@ -115,10 +117,6 @@ if m != nnz+1
     println( "m ", m, "nnz ", nnz )
 end
 
-A.colptr = pointer( col )
-A.rowptr = pointer( row )
-A.values = pointer( val )
-
 A2 = spm.spmatrix_t( zero )
 A2ptr = Ptr{spm.spmatrix_t}( pointer_from_objref(A2) )
 rc = spm.spmCheckAndCorrect( Aptr, A2ptr )
diff --git a/wrappers/python/CMakeLists.txt b/wrappers/python/CMakeLists.txt
index 85bffef37135b3ed76e85ef7d2781d12c5997832..c5853782765fa123cbe5c7ba76b3820903c90a08 100644
--- a/wrappers/python/CMakeLists.txt
+++ b/wrappers/python/CMakeLists.txt
@@ -71,7 +71,7 @@ if (Python3_Interpreter_FOUND)
 
     if (SPM_WITH_MPI)
       set( _test_name_ mpi_${_test_suffix_} )
-      add_test( ${_test_name_} mpiexec -np 4 --host localhost:4 ${Python3_EXECUTABLE} ${_test_file_} )
+      add_test( ${_test_name_} ${MPIEXEC_EXECUTABLE} -np 4 --host localhost:4 ${Python3_EXECUTABLE} ${_test_file_} )
       set_tests_properties( ${_test_name_}
         PROPERTIES ENVIRONMENT "PYTHONPATH=${CMAKE_CURRENT_BINARY_DIR}")
     endif()