Hi,

I hope all is well. 

I've developed a one-element simulation to test a VUMAT. After multiple simulations, I completed the VUMAT development, and everything seems to be functioning correctly. The results are as expected, and the simulation performs well when run through the Abaqus  GUI.

However, I'm encountering an issue when I try to run the same simulation from the command line. Despite using the exact same Fortran code and .inp file, the simulation fails with the following error:

***ERROR: Bad Material definition in element number 1 instance PART-1-1: zero
         or negative initial dilatational modulus caused by bad material
         data. Please check your material input and any initial conditions if
         necessary.

To run the simulation, I used the following command:

abaqus job=ti64-myVUMAT6 user=Abaqus-VUMAT-Johnson-Cook/JC_VUMAT.for cpus=6 int

I also tried the same command with "abq2022" but encountered the same error.

I have followed the guide on linking Abaqus with Intel oneAPI Fortran & C++ compilers as described in: https://www.researchgate.net/publication/361706781_Install_Abaqus_2022_User-Subroutines_How_to_Link_Abaqus_2022_with_Intel_oneAPI_Fortran_Compiler_Visual_Studio

To rule out issues with the linking procedure, I ran the following verification command: "abq2022 verify -user_exp". The results indicated that both single and double precision user subroutines passed validation:

Verify test : Abaqus/Explicit with user subroutines verification
 - 'Abaqus/Explicit single precision user subroutine' completed, validation Succeeded
 - 'Abaqus/Explicit double precision user subroutine' completed, validation Succeeded
    result : PASS

Additionally, I tested a simple elastic case using Abaqus Standard with a UMAT, and it worked without issues.

My system information (>> abq2022 info=system) is the following:

Processor:                  Intel(R) Xeon(R) Gold 6128 CPU @ 3.40GHz
Number of CPUs:       12
Physical Memory:       195033 MB
Virtual Memory:           206725 Available / 222682 Total Mbytes
OS Version:                 Windows Server 2019 Standard Server  (Build 17763)
C++ Compiler:             Microsoft Visual C++ 14.29.30153.0
Linker Version:            Microsoft (R) Incremental Linker Version 14.29.30153.0
Fortran Compiler:        Intel Fortran Compiler 2021.11
MPI:                             MS-MPI 9.0.12497.11

I'm unsure what might be causing the discrepancy between running the simulation through the GUI and the command line. Could you please provide some guidance on how to resolve this issue?

Thank you very much.