Hi ,

I am having Abaqus 2021 license with capability to run UMAT and also parallel process upto 4 cpus. I tried parallel processing with normal J2 plasticity model. It ran successfully. When I tried to run UMAT using parallel processing and iterative solver, it showed me segmentation fault and did not run itself. When I went through the internet, it showed that there may be problem with the UMAT program. But when I tried to run the same model with the same UMAT without parallel processing, the simulation ran completely without any errors. There were few suggestions for Abaqus in particular such as specifying memory and scratch in run command. I tried them too. But nothing seems to work. Why am I getting this error and how can I overcome it and run the UMAT with parallel processing?