Method, system, and program for merging log entries from multiple recovery log files

Provided are a method, system, and program for merging independent log entries in a multiple node shared nothing DBMS. Initially, log entries from multiple log entries are combined to form a single log entry sequence. Local transactions are generated from the single log entry sequence and stored in a local transactions structure. In particular, log entries with the same local transaction identifier form a local transaction. Then, local transactions having the same global identifier are merged to form global transactions

Analysis of JT-60SA operational scenarios

JT-60SA reference scenarios have been simulated with one-dimensional transport codes to assess the stationary state of flat-top phase and provide a profile database for further physics studies and diagnostics design. In this paper we present results obtained with ASTRA, CRONOS, JINTRAC and TOPICS codes equipped with Bohm/gyro-Bohm, CDBM and GLF23 transport models. The scenarios analysed here are: a standard ELMy H-mode, a hybrid scenario and a non-inductive steady state plasma, with operational parameters from JT-60SA research plan. The results from the different codes are in broad agreement and the main plasma parameters generally agree well with estimates reported previously. The sensitivity of results to different transport models and, in some cases, to the ELM/pedestal model has been investigated