DA, Do you happen to know what may cause this error? "[0]PETSC ERROR: PetscFinalize() line 968 in src/sys/objects/pinit.c" After reporting this error, the job can run continued, but it will aborted when encountering next petsc related features even with calling PetscInitialize() again, and say: "Options have not been enabled. You might have forgotten to call PetscInitialize()." Here is line 968: ierr = MPI_Finalize();CHKERRQ(ierr); Thanks, Debao ________________________________ -- The information contained in this communication and any attachments is confidential and may be privileged, and is for the sole use of the intended recipient(s). Any unauthorized review, use, disclosure or distribution is prohibited. Unless explicitly stated otherwise in the body of this communication or the attachment thereto (if any), the information is provided on an AS-IS basis without any express or implied warranties or liabilities. To the extent you are relying on this information, you are doing so at your own risk. If you are not the intended recipient, please notify the sender immediately by replying to this message and destroy all copies of this message and any attachments. ASML is neither liable for the proper and complete transmission of the information contained in this communication, nor for any delay in its receipt.