diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index b6abec079001611f50572c4e69065cb7501fec08..34e70e4be2057493e7cde8532180477e0603f23a 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,15 +1,8 @@
 ---
-cache:
-  paths:
-  - install/boost
-  - install/petsc
-
-before_script:
-  - tools/install_boost.sh
+image: mathiwr/amdis-base:debian9
 
 build:9-debug-gcc:
   stage: build
-  image: duneci/base:9
   script:
   - tools/build_amdis.sh Debug
   only:
@@ -17,7 +10,6 @@ build:9-debug-gcc:
 
 build:9-release-gcc:
   stage: build
-  image: duneci/base:9
   script:
   - tools/build_amdis.sh Release
   only:
@@ -25,18 +17,14 @@ build:9-release-gcc:
 
 build:9-parallel-debug-gcc:
   stage: build
-  image: duneci/base:9
   script:
-  - tools/install_petsc.sh
   - tools/build_parallel_amdis.sh Debug
   only:
   - master
 
 build:9-parallel-release-gcc:
   stage: build
-  image: duneci/base:9
   script:
-  - tools/install_petsc.sh
   - tools/build_parallel_amdis.sh Release
   only:
   - master
diff --git a/AMDiS/CMakeLists.txt b/AMDiS/CMakeLists.txt
index 843a1ac32889cd42968f2d50c7b8a4cd9bd24ba3..2e4f39a81d7a80d56f7ca77c5b4f53fe020904df 100644
--- a/AMDiS/CMakeLists.txt
+++ b/AMDiS/CMakeLists.txt
@@ -44,11 +44,10 @@ endif (MSVC)
 
 # parallel of sequential version
 if (ENABLE_PARALLEL_DOMAIN)
-  set(_POSTFIX "-p")
+  set(POSTFIX "-p")
 else ()
-  set(_POSTFIX "-s")
+  set(POSTFIX "-s")
 endif ()
-set(POSTFIX "${_POSTFIX}$<$<CONFIG:Debug>:d>")
 
 # ------------------------------------------------------------------------------
 
diff --git a/AMDiS/cmake/CMakeLists.txt b/AMDiS/cmake/CMakeLists.txt
index 87c5e3fb7dbddded0fd66c4b1fa3989712c4b50d..9765114acce9804b711994888097de0cd6f468a5 100644
--- a/AMDiS/cmake/CMakeLists.txt
+++ b/AMDiS/cmake/CMakeLists.txt
@@ -195,7 +195,8 @@ if (ENABLE_EXTENSIONS)
   include(amdis_extensions)
   add_library(amdis_extensions ${EXTENSIONS_SRC})
 
-  set_target_properties(amdis_extensions PROPERTIES OUTPUT_NAME amdisextensions${POSTFIX})
+  set_target_properties(amdis_extensions PROPERTIES OUTPUT_NAME amdisextensions${POSTFIX}
+                                              DEBUG_OUTPUT_NAME amdisextensions${POSTFIX}d)
   install(TARGETS amdis_extensions DESTINATION lib/amdis/ )
 endif (ENABLE_EXTENSIONS)
 
@@ -203,7 +204,8 @@ if (ENABLE_REINIT)
   include(amdis_reinit)
   add_library(amdis_reinit ${REINIT_SRC})
 
-  set_target_properties(amdis_reinit PROPERTIES OUTPUT_NAME amdisreinit${POSTFIX})
+  set_target_properties(amdis_reinit PROPERTIES OUTPUT_NAME amdisreinit${POSTFIX}
+                                          DEBUG_OUTPUT_NAME amdisreinit${POSTFIX}d)
   install(TARGETS amdis_reinit DESTINATION lib/amdis/ )
 endif (ENABLE_REINIT)
 
@@ -211,7 +213,8 @@ if (ENABLE_COMPOSITE_FEM)
   include(amdis_compositeFEM)
   add_library(amdis_compositeFEM ${COMPOSITE_FEM_SRC})
 
-  set_target_properties(amdis_compositeFEM PROPERTIES OUTPUT_NAME amdiscompositefem${POSTFIX})
+  set_target_properties(amdis_compositeFEM PROPERTIES OUTPUT_NAME amdiscompositefem${POSTFIX}
+                                                DEBUG_OUTPUT_NAME amdiscompositefem${POSTFIX}d)
   install(TARGETS amdis_compositeFEM DESTINATION lib/amdis/ )
 endif (ENABLE_COMPOSITE_FEM)
 
@@ -252,7 +255,8 @@ install(DIRECTORY ${BASE_DIR}/lib/mtl4/ DESTINATION include/amdis/mtl4/
   PATTERN "mtl4/libs" EXCLUDE
   PATTERN "mtl4/extern" EXCLUDE)
 
-set_target_properties(amdis PROPERTIES OUTPUT_NAME amdis${POSTFIX})
+set_target_properties(amdis PROPERTIES OUTPUT_NAME amdis${POSTFIX}
+                                 DEBUG_OUTPUT_NAME amdis${POSTFIX}d)
 install(TARGETS amdis DESTINATION lib/amdis/ )
 
 
@@ -267,10 +271,10 @@ configure_file(${BASE_DIR}/cmake/AMDISConfig.cmake.in
 
 # component configuration
 configure_file(${BASE_DIR}/cmake/AMDIS.cmake.in
-  ${AMDiS_BINARY_DIR}/AMDIS${_POSTFIX}.cmake
+  ${AMDiS_BINARY_DIR}/AMDIS${POSTFIX}.cmake
   @ONLY
 )
 
 install(FILES ${AMDiS_BINARY_DIR}/AMDISConfig.cmake DESTINATION share/amdis/)
-install(FILES ${AMDiS_BINARY_DIR}/AMDIS${_POSTFIX}.cmake DESTINATION share/amdis/)
+install(FILES ${AMDiS_BINARY_DIR}/AMDIS${POSTFIX}.cmake DESTINATION share/amdis/)
 install(FILES ${BASE_DIR}/cmake3/AMDISUse.cmake DESTINATION share/amdis/)
diff --git a/AMDiS/cmake3/CMakeLists.txt b/AMDiS/cmake3/CMakeLists.txt
index 645fe6344bc81eaad99c3e33e33d6d33735091c2..8dcc7141131f2d53b5c9b70a4c01e8e219a52689 100644
--- a/AMDiS/cmake3/CMakeLists.txt
+++ b/AMDiS/cmake3/CMakeLists.txt
@@ -224,7 +224,8 @@ install(DIRECTORY ${BASE_DIR}/lib/mtl4/ DESTINATION include/amdis/mtl4/
   PATTERN "mtl4/libs" EXCLUDE
   PATTERN "mtl4/extern" EXCLUDE)
 
-set_target_properties(amdis PROPERTIES OUTPUT_NAME amdis${POSTFIX})
+set_target_properties(amdis PROPERTIES OUTPUT_NAME amdis${POSTFIX}
+                                 DEBUG_OUTPUT_NAME amdis${POSTFIX}d)
 install(TARGETS amdis DESTINATION lib/amdis/ )
 
 # generate configuration file:
@@ -238,10 +239,10 @@ configure_file(${BASE_DIR}/cmake3/AMDISConfig.cmake.in
 
 # component configuration
 configure_file(${BASE_DIR}/cmake3/AMDIS.cmake.in
-  ${AMDiS_BINARY_DIR}/AMDIS${_POSTFIX}.cmake
+  ${AMDiS_BINARY_DIR}/AMDIS${POSTFIX}.cmake
   @ONLY
 )
 
 install(FILES ${AMDiS_BINARY_DIR}/AMDISConfig.cmake DESTINATION share/amdis/)
-install(FILES ${AMDiS_BINARY_DIR}/AMDIS${_POSTFIX}.cmake DESTINATION share/amdis/)
+install(FILES ${AMDiS_BINARY_DIR}/AMDIS${POSTFIX}.cmake DESTINATION share/amdis/)
 install(FILES ${BASE_DIR}/cmake3/AMDISUse.cmake DESTINATION share/amdis/)
diff --git a/AMDiS/cmake3/amdis_compositeFEM.cmake b/AMDiS/cmake3/amdis_compositeFEM.cmake
index b3d3c59ac10762bf8a1bb691a21fffe11bcc4814..a234645eff5c20b6862e25da0131f673cc1edd47 100644
--- a/AMDiS/cmake3/amdis_compositeFEM.cmake
+++ b/AMDiS/cmake3/amdis_compositeFEM.cmake
@@ -24,5 +24,6 @@ target_link_libraries(amdis_compositeFEM amdis)
 file(GLOB COMPOSITE_HEADERS "${COMPOSITE_SOURCE_DIR}/*.h*")
 install(FILES ${COMPOSITE_HEADERS} DESTINATION include/amdis/compositeFEM)
 
-set_target_properties(amdis_compositeFEM PROPERTIES OUTPUT_NAME amdiscompositefem${POSTFIX})
+set_target_properties(amdis_compositeFEM PROPERTIES OUTPUT_NAME amdiscompositefem${POSTFIX}
+                                              DEBUG_OUTPUT_NAME amdiscompositefem${POSTFIX}d)
 install(TARGETS amdis_compositeFEM DESTINATION lib/amdis/ )
diff --git a/AMDiS/cmake3/amdis_extensions.cmake b/AMDiS/cmake3/amdis_extensions.cmake
index 8aa5229d7c1d7739c78d8c4f052451643c27021b..89b63397fb5f70fdbc7f11434c4dd0555b32cf1d 100644
--- a/AMDiS/cmake3/amdis_extensions.cmake
+++ b/AMDiS/cmake3/amdis_extensions.cmake
@@ -94,7 +94,8 @@ if (ENABLE_EXTENSIONS)
         file(GLOB HEADERS "${EXTENSIONS_DIR}/pugixml/src/*.hpp")
         install(FILES ${HEADERS} DESTINATION include/amdis/extensions/pugixml/)
 
-        set_target_properties(amdis_extensions PROPERTIES OUTPUT_NAME amdisextensions${POSTFIX})
+        set_target_properties(amdis_extensions PROPERTIES OUTPUT_NAME amdisextensions${POSTFIX}
+                                                    DEBUG_OUTPUT_NAME amdisextensions${POSTFIX}d)
         install(TARGETS amdis_extensions DESTINATION lib/amdis/)
 
     endif (EXTENSIONS_DIR)
diff --git a/AMDiS/cmake3/amdis_reinit.cmake b/AMDiS/cmake3/amdis_reinit.cmake
index 5777598c0176fff3d8ad42e3baa0307c72b0dd88..4527fb15f628bb08e152d312b59217a2ffa33919 100644
--- a/AMDiS/cmake3/amdis_reinit.cmake
+++ b/AMDiS/cmake3/amdis_reinit.cmake
@@ -19,5 +19,6 @@ file(GLOB RINIT_HEADERS "${REINIT_SOURCE_DIR}/*.h*")
 install(FILES ${RINIT_HEADERS} DESTINATION include/amdis/reinit)
 
 
-set_target_properties(amdis_reinit PROPERTIES OUTPUT_NAME amdisreinit${POSTFIX})
+set_target_properties(amdis_reinit PROPERTIES OUTPUT_NAME amdisreinit${POSTFIX}
+                                        DEBUG_OUTPUT_NAME amdisreinit${POSTFIX}d)
 install(TARGETS amdis_reinit DESTINATION lib/amdis/ )