Dear Prof. Taylor and Govindjee,
Thank you very much for your kindly reply.
load groups work well in serial 8.3, the load group in IVISco such as
....
load prop 1
INCLude DISPlacement
load end
load prop 2
INCLude FORCe
load end
END
Then, I use the Parallel, but I check the IVISco_0001 file doesn't appear the load group and zero loading in running. Then cope the load group into IVISco_0001 by manual operation and submit the mpirun, and work well.
So I guess to add some code in the subroutine uoutdom (in the file parefeap/pmacr7.F), in order to read the load group in the IVISco and write into IVISco_0001, let load group work in Parallel. But I have no idea how to read the IVISco file.
Just I am a visting student and use the group's feap 8.3, I will update feap 8.6 after I work.
Best regards,
Yijun Chen