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An online plasma shape reconstruction, based on the otttine version of the EFITcode and MPI library, can be carried out between two adjacent shots in EAST. It combines onlinedata acquisition, parallel calculation, and data storage together. The program on the master nodeof the cluster detects the termination of the discharge promptly, reads diagnostic data from theEAST mdsplus server on the completion of data storing, and writes the results onto the EFITmdsplus server after the calculation is finished. These processes run automatically on a nine-nodesIBM blade center. The total time elapsed is about 1 second to several minutes, depending on theduration of the shot. With the results stored in the mdsplus server, it is convenient for operatorsand physicists to analyze the behavior of plasma using visualization tools.
An online plasma shape reconstruction, based on the otttine version of the EFITcode and MPI library, can be carried out between two adjacent shots in EAST. It combines onlinedata acquisition, parallel calculation, and data storage together. The program on the master node of the cluster detects the termination of the discharge promptly, reads diagnostic data from the EAST mdsplus server on the completion of data storing, and writes the results onto the EFITmdsplus server after the calculation is finished. time elapsed is about 1 second to several minutes, depending on theduration of the shot. With the results stored in the mdsplus server, it is convenient for operators and physicists to analyze the behavior of plasma using visualization tools.