diff --git a/CMakeLists.txt b/CMakeLists.txt
index 56416d0fd..e8b774cfc 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -82,6 +82,8 @@ if   (CMAKE_Fortran_COMPILER_ID STREQUAL "Intel")
     include(Compiler-Intel)
 elseif(CMAKE_Fortran_COMPILER_ID STREQUAL "GNU")
     include(Compiler-GNU)
+elseif(CMAKE_Fortran_COMPILER_ID STREQUAL "IntelLLVM")
+    include(Compiler-IntelLLVM)
 else()
     message(FATAL_ERROR "Compiler type(CMAKE_Fortran_COMPILER_ID) not recognized")
 endif()
diff --git a/cmake/Compiler-Intel.cmake b/cmake/Compiler-Intel.cmake
index b964a31e6..3afffd2be 100644
--- a/cmake/Compiler-Intel.cmake
+++ b/cmake/Compiler-Intel.cmake
@@ -106,8 +106,9 @@ set (DEBUG_FLAGS "${DEBUG_FLAGS} -fpe-all=0")
 #set (DEBUG_FLAGS "${DEBUG_FLAGS},stderrors")
 #   ... warnings about Fortran standard violations are changed to errors
 
-#set (DEBUG_FLAGS "${DEBUG_FLAGS} -debug-parameters all") 
+#set (DEBUG_FLAGS "${DEBUG_FLAGS} -debug-parameters all")
 # generate debug information for parameters
+# Disabled due to ICE when compiling phase_damage.f90 (not understandable, there is no parameter in there)
 
 # Additional options
 # -heap-arrays:            Should not be done for OpenMP, but set "ulimit -s unlimited" on shell. Probably it helps also to unlimit other limits
diff --git a/cmake/Compiler-IntelLLVM.cmake b/cmake/Compiler-IntelLLVM.cmake
new file mode 100644
index 000000000..5cd6a0e63
--- /dev/null
+++ b/cmake/Compiler-IntelLLVM.cmake
@@ -0,0 +1,121 @@
+###################################################################################################
+# Intel Compiler
+###################################################################################################
+if (CMAKE_Fortran_COMPILER_VERSION VERSION_LESS 18.0)
+  message (FATAL_ERROR "Intel Compiler version: ${CMAKE_Fortran_COMPILER_VERSION} not supported")
+endif ()
+
+if (OPENMP)
+  set (OPENMP_FLAGS "-qopenmp -parallel")
+endif ()
+
+if (OPTIMIZATION STREQUAL "OFF")
+  set (OPTIMIZATION_FLAGS    "-O0 -no-ip")
+elseif (OPTIMIZATION STREQUAL "DEFENSIVE")
+  set (OPTIMIZATION_FLAGS    "-O2")
+elseif (OPTIMIZATION STREQUAL "AGGRESSIVE")
+  set (OPTIMIZATION_FLAGS    "-ipo -O3 -no-prec-div -fp-model fast=2 -xHost")
+  # -fast = -ipo, -O3, -no-prec-div, -static, -fp-model fast=2, and -xHost"
+endif ()
+
+# -assume std_mod_proc_name (included in -standard-semantics) causes problems if other modules
+# (PETSc, HDF5) are not compiled with this option (https://software.intel.com/en-us/forums/intel-fortran-compiler-for-linux-and-mac-os-x/topic/62172)
+set (STANDARD_CHECK "-stand f18 -assume nostd_mod_proc_name")
+set (LINKER_FLAGS   "${LINKER_FLAGS} -shared-intel")
+# Link against shared Intel libraries instead of static ones
+
+#------------------------------------------------------------------------------------------------
+# Fine tuning compilation options
+set (COMPILE_FLAGS "${COMPILE_FLAGS} -fpp")
+# preprocessor
+
+set (COMPILE_FLAGS "${COMPILE_FLAGS} -ftz")
+# flush underflow to zero, automatically set if -O[1,2,3]
+
+set (COMPILE_FLAGS "${COMPILE_FLAGS} -diag-disable")
+# disables warnings ...
+set (COMPILE_FLAGS "${COMPILE_FLAGS} 5268")
+#   ... the text exceeds right hand column allowed on the line (we have only comments there)
+set (COMPILE_FLAGS "${COMPILE_FLAGS},7624")
+#   ... about deprecated forall (has nice syntax and most likely a performance advantage)
+
+set (COMPILE_FLAGS "${COMPILE_FLAGS} -warn")
+# enables warnings ...
+set (COMPILE_FLAGS "${COMPILE_FLAGS} declarations")
+#   ... any undeclared names (alternative name: -implicitnone)
+set (COMPILE_FLAGS "${COMPILE_FLAGS},general")
+#   ... warning messages and informational messages are issued by the compiler
+set (COMPILE_FLAGS "${COMPILE_FLAGS},usage")
+#   ... questionable programming practices
+set (COMPILE_FLAGS "${COMPILE_FLAGS},interfaces")
+#   ... checks the interfaces of all SUBROUTINEs called and FUNCTIONs invoked in your compilation against an external set of interface blocks
+set (COMPILE_FLAGS "${COMPILE_FLAGS},ignore_loc")
+#   ... %LOC is stripped from an actual argument
+set (COMPILE_FLAGS "${COMPILE_FLAGS},alignments")
+#   ... data that is not naturally aligned
+set (COMPILE_FLAGS "${COMPILE_FLAGS},unused")
+#   ... declared variables that are never used
+
+# Additional options
+#  -warn:                    enables warnings, where
+#     truncated_source:        Determines whether warnings occur when source exceeds the maximum column width in fixed-format files.
+#                               (too many warnings because we have comments beyond character 132)
+#     uncalled:                Determines whether warnings occur when a statement function is never called
+#     all:
+#  -name as_is: case sensitive Fortran!
+
+#------------------------------------------------------------------------------------------------
+# Runtime debugging
+set (DEBUG_FLAGS "${DEBUG_FLAGS} -g")
+# Generate symbolic debugging information in the object file
+
+set (DEBUG_FLAGS "${DEBUG_FLAGS} -traceback")
+# Generate extra information in the object file to provide source file traceback information when a severe error occurs at run time
+
+set (DEBUG_FLAGS "${DEBUG_FLAGS} -gen-interfaces")
+# Generate an interface block for each routine. http://software.intel.com/en-us/blogs/2012/01/05/doctor-fortran-gets-explicit-again/
+
+set (DEBUG_FLAGS "${DEBUG_FLAGS} -fp-stack-check")
+# Generate extra code after every function call to ensure that the floating-point (FP) stack is in the expected state
+
+set (DEBUG_FLAGS "${DEBUG_FLAGS} -fp-model strict")
+# Trap uninitalized variables
+
+set (DEBUG_FLAGS "${DEBUG_FLAGS} -check" )
+# Checks at runtime ...
+set (DEBUG_FLAGS "${DEBUG_FLAGS} bounds")
+#   ... if an array index is too small (<1) or too large!
+set (DEBUG_FLAGS "${DEBUG_FLAGS},format")
+#   ... for the data type of an item being formatted for output.
+set (DEBUG_FLAGS "${DEBUG_FLAGS},output_conversion")
+#   ... for the fit of data items within a designated format descriptor field.
+set (DEBUG_FLAGS "${DEBUG_FLAGS},pointers")
+#   ... for certain disassociated or uninitialized pointers or unallocated allocatable objects.
+set (DEBUG_FLAGS "${DEBUG_FLAGS},uninit")
+#   ... for uninitialized variables.
+set (DEBUG_FLAGS "${DEBUG_FLAGS} -ftrapuv")
+#   ... initializes stack local variables to an unusual value to aid error detection
+set (DEBUG_FLAGS "${DEBUG_FLAGS} -fpe-all=0")
+#   ... capture all floating-point exceptions, sets -ftz automatically
+
+# disable due to compiler bug https://community.intel.com/t5/Intel-Fortran-Compiler/false-positive-stand-f18-and-IEEE-SELECTED-REAL-KIND/m-p/1227336
+#set (DEBUG_FLAGS "${DEBUG_FLAGS} -warn")
+# enables warnings ...
+#set (DEBUG_FLAGS "${DEBUG_FLAGS} errors")
+#   ... warnings are changed to errors
+#set (DEBUG_FLAGS "${DEBUG_FLAGS},stderrors")
+#   ... warnings about Fortran standard violations are changed to errors
+
+set (DEBUG_FLAGS "${DEBUG_FLAGS} -debug-parameters all")
+# generate debug information for parameters
+
+# Additional options
+# -heap-arrays:            Should not be done for OpenMP, but set "ulimit -s unlimited" on shell. Probably it helps also to unlimit other limits
+# -check:                  Checks at runtime, where
+#    arg_temp_created:       will cause a lot of warnings because we create a bunch of temporary arrays (performance?)
+#    stack:
+
+#------------------------------------------------------------------------------------------------
+#  precision settings
+set (PRECISION_FLAGS "${PRECISION_FLAGS} -real-size 64")
+# set precision for standard real to 32 | 64 | 128 (= 4 | 8 | 16 bytes, type pReal is always 8 bytes)