diff --git a/installation/mods_Abaqus/abaqus_v6.env b/installation/mods_Abaqus/abaqus_v6.env
index b4710e198..fb243e987 100644
--- a/installation/mods_Abaqus/abaqus_v6.env
+++ b/installation/mods_Abaqus/abaqus_v6.env
@@ -32,7 +32,7 @@ fortCmd = "ifort"
 # -integer-size 32 -DINT=4        assume size of integer to be 4 bytes, matches our definition of pInt
 
 compile_fortran = (fortCmd + " -c -fPIC -auto -shared-intel " + 
-                   "-I%I -free -O1 -fpp -openmp " +
+                   "-I%I -free -O3 -fpp " +
                    "-ftz -diag-disable 5268 " +
                    "-implicitnone -standard-semantics " +
                    "-assume nostd_mod_proc_name " +
diff --git a/installation/mods_Abaqus/abaqus_v6_debug.env b/installation/mods_Abaqus/abaqus_v6_debug.env
index b99d1407c..2b112f29a 100644
--- a/installation/mods_Abaqus/abaqus_v6_debug.env
+++ b/installation/mods_Abaqus/abaqus_v6_debug.env
@@ -32,7 +32,7 @@ fortCmd = "ifort"
 # -integer-size 32 -DINT=4        assume size of integer to be 4 bytes, matches our definition of pInt
 
 compile_fortran = (fortCmd + " -c -fPIC -auto -shared-intel " + 
-                   "-I%I -free -O1 -fpp -openmp " +
+                   "-I%I -free -O0 -fpp " +
                    "-ftz -diag-disable 5268 " +
                    "-implicitnone -standard-semantics " +
                    "-assume nostd_mod_proc_name " +
diff --git a/installation/mods_Abaqus/abaqus_v6_serial.env b/installation/mods_Abaqus/abaqus_v6_serial.env
deleted file mode 100644
index c608b6993..000000000
--- a/installation/mods_Abaqus/abaqus_v6_serial.env
+++ /dev/null
@@ -1,52 +0,0 @@
-#
-#        DAMASK Abaqus Environment File
-#
-#       ------------------------------------
-# originally taken from Abaqus ver. 6.11.1
-#
-#
-# Linux (Opteron/EM64T) Settings:
-#
-# Compile and Link command for user subroutines.
-# Compile_cpp and link_exe for Abaqus make utility.
-#
-import os, re, glob, driverUtils
-from damask import version as DAMASKVERSION
-
-# Use the version in $PATH
-fortCmd = "ifort"
-
-# -free                           to use free-format FORTRAN 90 syntax
-# -O <0-3>                        optimization level
-# -fpp                            use FORTRAN preprocessor on source code
-# -w90 -w95                       suppress messages about use of non-standard Fortran (previous version of abaqus_v6.env only)
-# -WB                             turn a compile-time bounds check into a warning (previous version of abaqus_v6.env only)
-# -mP2OPT_hpo_vec_divbyzero=F     inofficial compiler switch, proposed by abaqus but highly dubios (previous version of abaqus_v6.env only)
-# -ftz                            flush underflow to zero
-# -diag-disable 5268              disable warnings about line length > 132 (only comments there anyway)
-# -implicitnone                   assume no implicit types (e.g. i for integer)
-# -standard-semantics             sets standard (Fortran 2008) and some other conventions
-# -assume nostd_mod_proc_name     avoid problems with libraries compiled without that option
-# -real-size 64 -DFLOAT=8         assume size of real to be 8 bytes, matches our definition of pReal
-# -integer-size 32 -DINT=4        assume size of integer to be 4 bytes, matches our definition of pInt
-
-compile_fortran = (fortCmd + " -c -fPIC -auto -shared-intel " + 
-                   "-I%I -free -O1 -fpp " +
-                   "-ftz -diag-disable 5268 " +
-                   "-implicitnone -standard-semantics " +
-                   "-assume nostd_mod_proc_name " +
-                   "-real-size 64 -integer-size 32 -DFLOAT=8 -DINT=4 " +
-                   '-DDAMASKVERSION=\\\"%s\\\"'%DAMASKVERSION)
-
-# Abaqus/CAE will generate an input file without parts and assemblies.
-cae_no_parts_input_file=ON
-# Both the Abaqus/Explicit packager and analysis are run in double precision.
-double_precision=BOTH
-# The user will not be asked whether old job files of the same name should be deleted.
-ask_delete=OFF
-
-# usub_lib_dir='your_prefered_location/abqlib'
-
-# Remove the temporary names from the namespace
-del fortCmd
-del DAMASKVERSION