Comsol with matlab error on HPC cluster

Dear All,

I run my comsol models with matlab on HPC cluster which have CentOS Linux installed on it. I use the following command for starting Comsol server on HPC

comsol mphserver &

This command starts Comsol server successfully but when I start connecting matlab to it by the following commmand:

matlab -nodesktop -nosplash -r "mphstart; mymfile.m; exit",

there appears an error which say: "Comsol server must run before calling mphstart", while I am sure about starting Comsol server, even when I try to start Comsol with Matlab by the command:

comsol mphserver matlab

server starts and runs Matlab but a confusing java error occurred and further processing is blocked.
FYI, I use Comsol version 5.3, It is interesting to inform you that everything is OK on my laptop with Windows 7. These errors occurs when I try to perform my simulations on HPC.

Any suggestions and helps are appreciated, Thanks,