Merge branch 'master.dev' into 'master'

Release 2.8.0

See merge request piclas/piclas!661

.githooks/pre-commit

@@ -2,7 +2,7 @@
 #==================================================================================================================================
 # Copyright (c) 2010 - 2022 Prof. Claus-Dieter Munz and Prof. Stefanos Fasoulas
 #
-# This file is part of PICLas (gitlab.com/piclas/piclas). PICLas is free software: you can redistribute it and/or modify
+# This file is part of PICLas (piclas.boltzplatz.eu/piclas/piclas). PICLas is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3
 # of the License, or (at your option) any later version.
 #

.gitignore

@@ -77,3 +77,6 @@ CMakeFiles/
 
 # doxygen build folder
 doxygen/
+
+# unit test
+unitTests/bin/

.gitlab-ci.yml

@@ -186,7 +186,7 @@ build:
   stage: build
   script:
     - mkdir -p build ; cd build
-    - git clone git@gitlab.com:reggie2.0/reggie2.0.git reggie
+    - git clone git@piclas.boltzplatz.eu:reggie2.0/reggie2.0.git reggie
     #- cmake .. -DLIBS_BUILD_HDF5=OFF -DPICLAS_BUILD_POSTI=ON -DPOSTI_BUILD_SUPERB=ON -DPICLAS_READIN_CONSTANTS=ON ; $GENERATOR -j all
     - cmake -GNinja .. -DLIBS_BUILD_HDF5=OFF -DPICLAS_BUILD_POSTI=ON -DPOSTI_BUILD_SUPERB=ON -DPICLAS_READIN_CONSTANTS=ON ; ninja -j0 all
 
@@ -207,7 +207,7 @@ build_maxwell:
   stage: build
   script:
     - mkdir -p build_maxwell ; cd build_maxwell
-    - git clone git@gitlab.com:reggie2.0/reggie2.0.git reggie
+    - git clone git@piclas.boltzplatz.eu:reggie2.0/reggie2.0.git reggie
     - cmake .. -DPICLAS_DEBUG_MEMORY=ON -DPICLAS_PARTICLES=OFF -DLIBS_BUILD_HDF5=OFF -DPICLAS_READIN_CONSTANTS=ON ; $GENERATOR -j $NCORES all
 
 build_poisson:
@@ -229,11 +229,11 @@ build_poisson:
   stage: build
   script:
     - mkdir -p build_poisson_release ; cd build_poisson_release
-    - git clone git@gitlab.com:reggie2.0/reggie2.0.git reggie
+    - git clone git@piclas.boltzplatz.eu:reggie2.0/reggie2.0.git reggie
     - cmake .. -DCMAKE_BUILD_TYPE=Release -DPICLAS_EQNSYSNAME=poisson -DPICLAS_CODE_ANALYZE=ON -DPICLAS_TIMEDISCMETHOD=RK3 -DLIBS_BUILD_HDF5=OFF ; $GENERATOR -j $NCORES all
     - cd ..
     - mkdir -p build_poisson_debug ; cd build_poisson_debug
-    - git clone [email protected]:reggie2.0/reggie2.0.git reggie
+    - cp -r ../build_poisson_release/reggie .
     - cmake .. -DCMAKE_BUILD_TYPE=Debug -DPICLAS_EQNSYSNAME=poisson -DPICLAS_CODE_ANALYZE=ON -DPICLAS_TIMEDISCMETHOD=RK3 -DLIBS_BUILD_HDF5=OFF ; $GENERATOR -j $NCORES all
 
 build_hopr:
@@ -252,6 +252,38 @@ build_hopr:
   rules:
     - if: '$DO_WEEKLY'
 
+build_no_git:
+  tags:
+    - withmodules-concurrent
+  stage: build
+  script:
+    - echo " Installing branch $CI_COMMIT_REF_NAME without git"
+    - git clone --depth=1 --branch=$CI_COMMIT_REF_NAME [email protected]:piclas/piclas.git piclas-no-git
+    - rm -rf piclas-no-git/.git* ; cd piclas-no-git ; ls -la
+    - mkdir build_ ; cd build_ ;
+    - cmake .. -DLIBS_BUILD_HDF5=OFF
+    - $GENERATOR -j $NCORES all
+  rules:
+    - if: '$DO_WEEKLY'
+
+build_no_git_libs:
+  tags:
+    - withmodules-concurrent
+  stage: build
+  script:
+    - echo " Installing branch $CI_COMMIT_REF_NAME without git but with external libs"
+    - git clone --depth=1 --branch=$CI_COMMIT_REF_NAME [email protected]:piclas/piclas.git piclas-no-git-but-libs
+    - rm -rf piclas-no-git-but-libs/.git* ; cd piclas-no-git-but-libs ; ls -la
+    - mkdir build_ ; cd build_
+    - cmake .. -DLIBS_BUILD_HDF5=ON -DLIBS_BUILD_MATH_LIB=ON -DLIBS_BUILD_MATH_LIB_VENDOR=OpenBLAS
+    - echo " Compiling with -DLIBS_BUILD_HDF5=ON -DLIBS_BUILD_MATH_LIB=ON -DLIBS_BUILD_MATH_LIB_VENDOR=OpenBLAS ..."
+    - $GENERATOR -j $NCORES all &> output.txt
+    - tail -n 20 output.txt
+    - rm output.txt
+    - ls bin/piclas
+  rules:
+    - if: '$DO_WEEKLY'
+
 # ----------------------------------------------------------------------------------------------------------------------------------------------------
 # Stage "reggie_checkin": Run most simple reggie with previous builds on check-in
 # ----------------------------------------------------------------------------------------------------------------------------------------------------
@@ -641,12 +673,7 @@ github:
   script:
     - if [ -z "${DO_DEPLOY}" ]; then exit ; fi
     - rm -rf piclas_github || true ;
-    - git clone -b master --single-branch git@gitlab.com:piclas/piclas.git piclas_github ;
+    - git clone -b master --single-branch git@piclas.boltzplatz.eu:piclas/piclas.git piclas_github ;
     - cd piclas_github ;
-##    - git checkout --orphan orphan_branch v1.0.0 ; # tag v1.0.0 points to f754d8e1e207cb959a81bfb9013bc0f12476c62b
-##    - git commit -m 'truncated history before v1.0.0' ;
-##    - git rebase --onto orphan_branch v1.0.0 master ;
-##    - git branch -D orphan_branch ;
     - git remote add piclas-framework [email protected]:piclas-framework/piclas.git ;
     - git push --force --follow-tags piclas-framework master ;
-#    - git push --mirror [email protected]:iagcopple/piclas-framework.git ; cd ../

.readthedocs.yaml

@@ -2,12 +2,23 @@
 
 version: 2
 
+# Set the version of Python and other tools you might need
+build:
+  os: ubuntu-22.04
+  tools:
+    python: "3.10"
+  jobs:
+    pre_create_environment:
+      - echo "Command run at 'pre_create_environment' step"
+    post_build:
+      - echo "Command run at 'post_build' step"
+      - echo `date`
+
 sphinx:
   builder: html
   configuration: docs/documentation/conf.py
 
 python:
-  version: 3.7
   install:
     - requirements: docs/documentation/requirements.txt
 

CMakeLists.txt

@@ -19,6 +19,7 @@ ENDIF()
 # =========================================================================
 # Git configuration
 # =========================================================================
+IF(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/.git)
 # Setup git hooks
 SET(PRECOMMIT_FILE ".githooks/pre-commit")
 # Check if the pre-commit hooks exits
@@ -41,6 +42,9 @@ IF (DEFINED HOOKSPATH  AND NOT "${HOOKSPATH}" STREQUAL "" AND NOT "${HOOKSPATH}"
   # MESSAGE (STATUS "${ESCAPE}[34mCustom hooks path detected. Please ensure to call ${PRECOMMIT_FILE} manually.${ESCAPE}[0m")
   MESSAGE (WARNING "Custom git hooks path detected. Please ensure to call ${PRECOMMIT_FILE} manually.")
 ENDIF()
+ELSE()
+  MESSAGE(STATUS "git not found")
+ENDIF()
 
 # =========================================================================
 # Project definition
@@ -110,11 +114,13 @@ PROJECT(PICLas)
 # =========================================================================
 # Store the current commit information
 # =========================================================================
-EXECUTE_PROCESS(COMMAND git rev-parse HEAD OUTPUT_VARIABLE GIT_COMMIT OUTPUT_STRIP_TRAILING_WHITESPACE)
 SET(commit ${CMAKE_CURRENT_SOURCE_DIR}/src/commit.h)
-MESSAGE(STATUS "Current git commit ${GIT_COMMIT} will be written to ${commit}")
 FILE(WRITE ${commit} "! Define the current commit hash. The default must remain empty, i.e., ''. Do not commit the changed file!\n#define GIT_CURRENT_COMMIT  ''\n")
-EXECUTE_PROCESS(COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/tools/cmake/setCommitHash.sh ${commit})
+IF(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/.git)
+  EXECUTE_PROCESS(COMMAND git rev-parse HEAD OUTPUT_VARIABLE GIT_COMMIT OUTPUT_STRIP_TRAILING_WHITESPACE)
+  MESSAGE(STATUS "Current git commit ${GIT_COMMIT} will be written to ${commit}")
+  EXECUTE_PROCESS(COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/tools/cmake/setCommitHash.sh ${commit})
+ENDIF()
 
 # =========================================================================
 # Check IPO support:

CMakeListsLib.txt

@@ -14,23 +14,26 @@ MARK_AS_ADVANCED(FORCE LIBS_EXTERNAL_LIB_DIR)
 # =========================================================================
 # Check where the code originates
 # =========================================================================
-EXECUTE_PROCESS(COMMAND git ls-remote --get-url OUTPUT_VARIABLE GIT_ORIGIN)
+IF(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/.git)
+  EXECUTE_PROCESS(COMMAND git ls-remote --get-url OUTPUT_VARIABLE GIT_ORIGIN)
 
-# Strip lead and trailing white space
-string(STRIP ${GIT_ORIGIN} GIT_ORIGIN)
+  # Strip lead and trailing white space
+  string(STRIP ${GIT_ORIGIN} GIT_ORIGIN)
 
-# Origin pointing to gitlab?
-MESSAGE(STATUS "Checking git origin: " ${GIT_ORIGIN})
-IF("${GIT_ORIGIN}" MATCHES "gitlab.com")
+  # Origin pointing to gitlab?
+  MESSAGE(STATUS "Checking git origin: " ${GIT_ORIGIN})
+ENDIF()
+
+IF("${GIT_ORIGIN}" MATCHES "piclas.boltzplatz.eu")
   # Checked out using SSH
   IF("${GIT_ORIGIN}" MATCHES "^git@")
-    SET(LIBS_DLPATH "git@gitlab.com:piclas/")
+    SET(LIBS_DLPATH "git@piclas.boltzplatz.eu:piclas/")
   # Checked out using HTTPS
   # IF("${GIT_ORIGIN}" MATCHES "^https@")
   ELSEIF("${GIT_ORIGIN}" MATCHES "^ssh:")
-    SET(LIBS_DLPATH "git@gitlab.com:piclas/")
+    SET(LIBS_DLPATH "git@piclas.boltzplatz.eu:piclas/")
   ELSE()
-    SET(LIBS_DLPATH "https://gitlab.com/piclas/")
+    SET(LIBS_DLPATH "https://piclas.boltzplatz.eu/piclas/")
   ENDIF()
 ELSE()
   # Select each lib separately
@@ -141,12 +144,18 @@ IF(NOT LIBS_BUILD_HDF5)
   # Build HDF5 in PICLas
 ELSE()
   # Origin pointing to Github
-  IF("${GIT_ORIGIN}" MATCHES ".github.com")
+  IF("${GIT_ORIGIN}" STREQUAL "")
+    # Use https://github.com/HDFGroup/hdf5.git when using piclas without git
+    SET (HDF5DOWNLOAD "https://github.com/HDFGroup/hdf5.git")
+  ELSEIF("${GIT_ORIGIN}" MATCHES ".github.com")
+    # Use https://github.com/HDFGroup/hdf5.git when using piclas from github.com
     SET (HDF5DOWNLOAD "https://github.com/HDFGroup/hdf5.git")
   ELSE()
     IF("${GIT_ORIGIN}" MATCHES "https://gitlab-ci-token")
+      # Use https://piclas.boltzplatz.eu/piclas/hdf5.git when gitlab runner needs to download libs
       STRING(REGEX REPLACE "/piclas.git" "/hdf5.git" HDF5DOWNLOAD ${GIT_ORIGIN})
     ELSE()
+      # Use https://piclas.boltzplatz.eu/piclas/hdf5.git when using piclas from piclas.boltzplatz.eu
       SET (HDF5DOWNLOAD ${LIBS_DLPATH}hdf5.git )
     ENDIF()
   ENDIF()
@@ -286,7 +295,7 @@ IF(NOT LIBS_BUILD_MATH_LIB)
   ENDIF()
 
   # Use Lapack/Blas for GNU
-  FIND_PACKAGE(LAPACK QUIET)
+  FIND_PACKAGE(LAPACK REQUIRED)
   IF (LAPACK_FOUND)
     LIST(APPEND linkedlibs ${LAPACK_LIBRARIES})
     MESSAGE(STATUS "Compiling with system [BLAS/Lapack]")
@@ -307,12 +316,18 @@ ELSE()
   # Build LAPACK
   IF (LIBS_BUILD_MATH_LIB_VENDOR MATCHES "LAPACK")
     # Origin pointing to Github
-    IF("${GIT_ORIGIN}" MATCHES ".github.com")
+    IF("${GIT_ORIGIN}" STREQUAL "")
+      # Use https://github.com/Reference-LAPACK/lapack.git when using piclas without git
+      SET (MATHLIB_DOWNLOAD "https://github.com/Reference-LAPACK/lapack.git")
+    ELSEIF("${GIT_ORIGIN}" MATCHES ".github.com")
+      # Use https://github.com/Reference-LAPACK/lapack.git when using piclas from github.com
       SET (MATHLIB_DOWNLOAD "https://github.com/Reference-LAPACK/lapack.git")
     ELSE()
       IF("${GIT_ORIGIN}" MATCHES "https://gitlab-ci-token")
+        # Use https://piclas.boltzplatz.eu/piclas/lapack.git when gitlab runner needs to download libs
         STRING(REGEX REPLACE "/piclas.git" "/lapack.git" MATHLIB_DOWNLOAD ${GIT_ORIGIN})
       ELSE()
+        # Use https://piclas.boltzplatz.eu/piclas/lapack.git when using piclas from piclas.boltzplatz.eu
         SET (MATHLIB_DOWNLOAD ${LIBS_DLPATH}lapack.git )
       ENDIF()
     ENDIF()
@@ -323,12 +338,18 @@ ELSE()
     MARK_AS_ADVANCED(FORCE MATH_LIB_TAG)
   # Build OpenBLAS
   ELSEIF (LIBS_BUILD_MATH_LIB_VENDOR MATCHES "OpenBLAS")
-    IF("${GIT_ORIGIN}" MATCHES ".github.com")
+    IF("${GIT_ORIGIN}" STREQUAL "")
+      # Use https://github.com/xianyi/OpenBLAS when using piclas without git
+      SET (MATHLIB_DOWNLOAD "https://github.com/xianyi/OpenBLAS.git")
+    ELSEIF("${GIT_ORIGIN}" MATCHES ".github.com")
+      # Use https://github.com/xianyi/OpenBLAS when using piclas from github.com
       SET (MATHLIB_DOWNLOAD "https://github.com/xianyi/OpenBLAS.git")
     ELSE()
       IF("${GIT_ORIGIN}" MATCHES "https://gitlab-ci-token")
+        # Use https://piclas.boltzplatz.eu/piclas/OpenBLAS.git when gitlab runner needs to download libs
         STRING(REGEX REPLACE "/piclas.git" "/OpenBLAS.git" MATHLIB_DOWNLOAD ${GIT_ORIGIN})
       ELSE()
+        # Use https://piclas.boltzplatz.eu/piclas/OpenBLAS.git when using piclas from piclas.boltzplatz.eu
         SET (MATHLIB_DOWNLOAD ${LIBS_DLPATH}OpenBLAS.git )
       ENDIF()
     ENDIF()

CMakeListsMachine.txt

@@ -90,12 +90,11 @@ INCLUDE(GNUInstallDirs)
 IF ("${CMAKE_HOSTNAME}" MATCHES "login")
   MARK_AS_ADVANCED(FORCE C_PATH CXX_PATH Fortran_PATH)
 
-  # HAWK and SuperMUC name their login nodes identically, so use OS distribution to identify
-  FIND_PROGRAM(LSB_RELEASE_EXEC lsb_release)
-  EXECUTE_PROCESS(COMMAND ${LSB_RELEASE_EXEC} -is OUTPUT_VARIABLE LSB_RELEASE_ID_SHORT OUTPUT_STRIP_TRAILING_WHITESPACE)
-  MARK_AS_ADVANCED(FORCE LSB_RELEASE_EXEC)
+  # HAWK and SuperMUC name their login nodes identically, so use the Fully Qualified Domain Name (FQDN) to identify
+  CMAKE_HOST_SYSTEM_INFORMATION(RESULT FQDN QUERY FQDN)
+  MARK_AS_ADVANCED(FORCE FQDN)
   # HLRS HAWK
-  IF (LSB_RELEASE_ID_SHORT MATCHES "CentOS")
+  IF (FQDN MATCHES "hawk.hww.hlrs.de")
     MESSAGE(STATUS "Compiling on Hawk")
     # Overwrite compiler target architecture
     IF (CMAKE_Fortran_COMPILER_ID MATCHES "GNU" OR CMAKE_Fortran_COMPILER_ID MATCHES "Flang")
@@ -106,7 +105,7 @@ IF ("${CMAKE_HOSTNAME}" MATCHES "login")
     # Use AMD Optimized Lapack/BLAS
     # SET(BLA_VENDOR "FLAME")
   # SuperMUC
-  ELSEIF (LSB_RELEASE_ID_SHORT MATCHES "SUSE")
+  ELSEIF (FQDN MATCHES "sng.lrz.de")
     MESSAGE(STATUS "Compiling on SuperMUC")
     # Overwrite compiler target architecture
     IF (CMAKE_Fortran_COMPILER_ID MATCHES "GNU" OR CMAKE_Fortran_COMPILER_ID MATCHES "Flang")
@@ -163,6 +162,32 @@ ELSE()
   ENDIF()
 ENDIF()
 
+# =========================================================================
+# CHECK SUPPORT FOR VARIOUS FORTRAN (2003,2008) FEATURES
+# =========================================================================
+INCLUDE(CheckFortranSourceCompiles)
+CHECK_FORTRAN_SOURCE_COMPILES(
+"MODULE F03MOD
+IMPLICIT NONE
+PRIVATE
+CONTAINS
+! Check for MOVE_ALLOC feature
+SUBROUTINE F03_MOVE_ALLOC()
+REAL,ALLOCATABLE::a(:,:),b(:,:)
+ALLOCATE(a(3,3))
+CALL MOVE_ALLOC(a,b)
+END SUBROUTINE F03_MOVE_ALLOC
+END MODULE F03MOD
+
+PROGRAM F03PROG
+END"
+Fortran2003Check
+SRC_EXT F90)
+
+IF(NOT Fortran2003Check)
+  MESSAGE(FATAL_ERROR "Failed to compile basic Fortran2003 programm! Please ensure your compiler is up-to-date!")
+ENDIF()
+
 MESSAGE(STATUS "Compiling with [${CMAKE_Fortran_COMPILER_ID}] (v${CMAKE_Fortran_COMPILER_VERSION}) fortran compiler using [${PICLAS_INSTRUCTION}] instruction")
 
 # =========================================================================
@@ -177,16 +202,16 @@ IF (CMAKE_Fortran_COMPILER_ID MATCHES "GNU")
   # set Flags (disable lto type warnings due to false positives with MATMUL, which is a known bug)
   IF (NOT DEFINED C_FLAGS_INITIALIZED )
     SET (C_FLAGS_INITIALIZED "yes" CACHE INTERNAL "Flag if compiler flags are already initialized" )
-    SET (CMAKE_Fortran_FLAGS         "${CMAKE_Fortran_FLAGS} -fdefault-real-8 -fdefault-double-8 -fbackslash -ffree-line-length-0 -finit-real=snan -finit-integer=snan  -Wno-lto-type-mismatch -DGNU")
+    SET (CMAKE_Fortran_FLAGS         "${CMAKE_Fortran_FLAGS} -fdefault-real-8 -fdefault-double-8 -fbackslash -ffree-line-length-0 -finit-real=snan -finit-integer=snan -Wno-lto-type-mismatch -lstdc++ -DGNU")
     IF(PICLAS_EXTRAE)
-      SET (CMAKE_Fortran_FLAGS         "${CMAKE_Fortran_FLAGS} -finstrument-functions")
+      SET (CMAKE_Fortran_FLAGS       "${CMAKE_Fortran_FLAGS} -finstrument-functions")
     ENDIF(PICLAS_EXTRAE)
   ENDIF()
   SET (CMAKE_Fortran_FLAGS_NITRO     "${CMAKE_Fortran_FLAGS}  -Ofast ${PICLAS_INSTRUCTION}")
   SET (CMAKE_Fortran_FLAGS_RELEASE   "${CMAKE_Fortran_FLAGS}     -O3 ${PICLAS_INSTRUCTION} -fstack-arrays")
   SET (CMAKE_Fortran_FLAGS_PROFILE   "${CMAKE_Fortran_FLAGS} -pg -O3 ${PICLAS_INSTRUCTION} -fstack-arrays")
   SET (CMAKE_Fortran_FLAGS_DEBUG     "${CMAKE_Fortran_FLAGS} -g  -Og -ggdb3 -ffpe-trap=invalid -fbounds-check -fbacktrace  -Wall")
-  SET (CMAKE_Fortran_FLAGS_SANITIZE  "${CMAKE_Fortran_FLAGS} -g  -Og -ggdb3 -ffpe-trap=invalid,zero,overflow,denorm -fbounds-check -fbacktrace  -Wall -fsanitize=address,undefined,leak -fno-omit-frame-pointer -Wc-binding-type -Wuninitialized -pedantic")
+  SET (CMAKE_Fortran_FLAGS_SANITIZE  "${CMAKE_Fortran_FLAGS} -g  -Og -ggdb3 -ffpe-trap=invalid,zero,overflow,denorm -fbounds-check -fbacktrace -Wall -fsanitize=address,undefined,leak -fno-omit-frame-pointer -Wc-binding-type -Wuninitialized -pedantic")
   # Compile flags depend on the generator
   IF(NOT "${CMAKE_GENERATOR}" MATCHES "Ninja")
     # add flags only for compiling not linking!
@@ -200,7 +225,7 @@ ELSEIF (CMAKE_Fortran_COMPILER_ID MATCHES "Flang")
   # set Flags
   IF (NOT DEFINED C_FLAGS_INITIALIZED )
     SET (C_FLAGS_INITIALIZED "yes" CACHE INTERNAL "Flag if compiler flags are already initialized" )
-    SET (CMAKE_Fortran_FLAGS         "${CMAKE_Fortran_FLAGS} -fdefault-real-8 -std=f2008 -DFLANG")
+    SET (CMAKE_Fortran_FLAGS         "${CMAKE_Fortran_FLAGS} -fdefault-real-8 -std=f2008 -lstdc++ -DFLANG")
   ENDIF()
   SET (CMAKE_Fortran_FLAGS_RELEASE   "${CMAKE_Fortran_FLAGS}     -O3 ${PICLAS_INSTRUCTION} -finline-functions ")
   SET (CMAKE_Fortran_FLAGS_PROFILE   "${CMAKE_Fortran_FLAGS} -pg -O3 ${PICLAS_INSTRUCTION} -finline-functions ")
@@ -218,7 +243,7 @@ ELSEIF (CMAKE_Fortran_COMPILER_ID MATCHES "Intel")
   # set Flags
   IF (NOT DEFINED C_FLAGS_INITIALIZED )
     SET (C_FLAGS_INITIALIZED "yes" CACHE INTERNAL "Flag if compiler flags are already initialized" )
-    SET (CMAKE_Fortran_FLAGS         "${CMAKE_Fortran_FLAGS} -r8 -i4 -traceback -warn all -shared-intel -DINTEL")
+    SET (CMAKE_Fortran_FLAGS         "${CMAKE_Fortran_FLAGS} -r8 -i4 -traceback -warn all -shared-intel -lstdc++ -DINTEL")
   ENDIF()
   SET (CMAKE_Fortran_FLAGS_RELEASE   "${CMAKE_Fortran_FLAGS}    -O3 ${PICLAS_INSTRUCTION} -qopt-report0 -qopt-report-phase=vec -no-prec-div")
   SET (CMAKE_Fortran_FLAGS_PROFILE   "${CMAKE_Fortran_FLAGS} -p -O3 ${PICLAS_INSTRUCTION} -qopt-report0 -qopt-report-phase=vec -no-prec-div")
@@ -236,7 +261,7 @@ ELSEIF (CMAKE_Fortran_COMPILER_ID MATCHES "Cray")
   # set Flags
   IF (NOT DEFINED C_FLAGS_INITIALIZED )
     SET (C_FLAGS_INITIALIZED "yes" CACHE INTERNAL "Flag if compiler flags are already initialized" )
-    SET (CMAKE_Fortran_FLAGS         "${CMAKE_Fortran_FLAGS} -f free -s real64 -em -DCRAY")
+    SET (CMAKE_Fortran_FLAGS         "${CMAKE_Fortran_FLAGS} -f free -s real64 -em -lstdc++ -DCRAY")
   ENDIF()
   SET (CMAKE_Fortran_FLAGS_RELEASE   "${CMAKE_Fortran_FLAGS} -O2 -hfp3 -p . -rm")
   SET (CMAKE_Fortran_FLAGS_PROFILE   "${CMAKE_Fortran_FLAGS} -O2 -hfp3 -h profile_generate -p . -rm")

README.md

@@ -10,7 +10,7 @@ support the project by citing our publications given in [REFERENCE.md](REFERENCE
 ## Documentation and Installation
 
 The documentation of PICLas can be found in the [User Guide](https://piclas.readthedocs.io/), where the installation procedure is
-described in [Chapter 2](https://piclas.readthedocs.io/en/latest/installation.html).
+described in [Chapter 2](https://piclas.readthedocs.io/en/latest/userguide/installation.html).
 
 ## Regression Testing