Abaqus installation directories, configuration files, UMAT, UGENS

Working Directory
During installation you select a default "working directory" like "c:\temp", but I strongly recommend to use "C:\SIMULIA\USER\"

Installation Directories
There are two separate software installation directories for Abaqus. 
-- solvers_install_dir 
-- cae_install_dir

Below are shown the locations, if during installation you accepted the default locations: 
-- solvers_install_dir: 
 C:\Program Files\Dassault Systemes\SimulationServices\V6R2017x\win_b64\SMA\site\

-- cae_install_dir:
 "C:\SIMULIA\CAE\2017\win_b64\code\bin\

In the "solvers_install_dir" you can find the environment files abaqus_v6.env, custom_v6.env, win86_64.env, etc.

Solvers_install_dir\win86_64.env file
You may need to modify win86_64.env if you need different Fortran compiler directives, such as to use MKL, or free formating. First make a backup of win86_64.env file into win86_64_backup.env, then modify it like this:

 compile_fortran=['ifort',
                 '/Qmkl:sequential',    # <-- MKL
                 '/free', # <-- free format Fortran95
                 '/c','/DABQ_WIN86_64', '/extend-source', '/fpp',
                 '/iface:cref', '/recursive', '/Qauto-scalar',
                 '/QxSSE3', '/QaxAVX',
                 '/heap-arrays:1',
                 # '/Od', '/Ob0',  # <-- Optimization Debugging
                 # '/Zi',          # <-- Debugging
                 '/include:%I']

Note: Abaqus/CAE requires UMAT files to have extension .for, which the ifort compiler interprets as F77 fixed format files, but including the switch /free we force ifort to interpret .for as F90 free formatted files. 
 
C:\SIMULIA\Commands
Contains batch files that Abaqus uses to execute Abaqus (but not CAE).

You may need to modify abq2017.bat to enable compilation/linking of user programmable features such as UMAT. Abaqus needs to know the PATH to the ifort compiler, MKL libraries, and so on. First make a backup copy of the original file abq2017.bat -> abq2017_backup.bat just in case. Then modify abq2017.bat as follows:

rem .bat file to enable Abaqus User Programmable Features,
rem thus executing Abaqus 2017 with
rem Visual Studio 2013 Update 5 and
rem Intel Parallel Studio XE 2016 Update 1 and
rem Intel MKL Math libraries

rem Add a PATH to ifort.exe
SET PATH=C:\Program Files (x86)\IntelSWTools\compilers_and_libraries_2019.4.245\windows\bin\intel64;%PATH%;

rem Load ifortvars, which itself loads vcvarsall x64
call "C:\Program Files (x86)\IntelSWTools\compilers_and_libraries_2016.1.146\windows\bin\ifortvars" -arch intel64

rem Load mklvars
call "C:\Program Files (x86)\IntelSWTools\compilers_and_libraries_2016.1.146\windows\mkl\bin\mklvars" intel64

rem keep next 2 lines exactly as in the original installation
@echo off
"C:\SIMULIA\CAE\2017\win_b64\code\bin\ABQLauncher.exe" %*

C:\SIMULIA\CAE\2017\win_b64\resources\install\cae
You may need to modify launcher.bat to enable compilation/linking of user programmable features from within CAE. Abaqus/CAE needs to know the PATH to the ifort compiler, MKL libraries, and so on. First make a backup copy of the original file -> launcher_backup.bat just in case. Then modify launcher.bat as follows:

rem .bat file to execute Abaqus/CAE 2017 with
rem Visual Studio 2013 Update 5 and
rem Intel Parallel Studio XE 2016 Update 1 and
rem Intel MKL Math libraries

rem Add a PATH to ifort.exe
SET PATH=C:\Program Files (x86)\IntelSWTools\compilers_and_libraries_2019.4.245\windows\bin\intel64;%PATH%;

rem Load ifortvars, which itself loads vcvarsall x64
call "C:\Program Files (x86)\IntelSWTools\compilers_and_libraries_2016.1.146\windows\bin\ifortvars" -arch intel64

rem Load mklvars
call "C:\Program Files (x86)\IntelSWTools\compilers_and_libraries_2016.1.146\windows\mkl\bin\mklvars" intel64

rem keep next 2 lines exactly as in the original installation
@echo off
"C:\SIMULIA\CAE\2017\win_b64\code\bin\ABQLauncher.exe" %*