batch mode
batch modeBatch processing-rn

Computerized batch processing is a method of running software programs called jobs in batches automatically. While users are required to submit the jobs, no other interaction by the user is required to process the batch. Batches may automatically be run at scheduled times as well as being run contingent on the availability of computer resources.The term “batch processing” originates in the traditional classification of methods of production as job production (one-off production), batch production (production of a “batch” of multiple items at once, one stage at a time), and (mass production, all stages in process at once).Early computers were capable of running only one program at a time. Each user had sole control of the machine for a scheduled period of time. They would arrive at the computer with program and data, often on and magnetic or paper tape, and would load their program, run and debug it, and carry off their output when done.As computers became faster the setup and takedown time became a largerbatch mode percentage of available computer time. Programs called monitors, the forerunners of operating systems, were developed which could process a series, or “batch”, of programs, often from magnetic tape prepared offline. The monitor would be loaded into the computer and run the first job of the batch. At the end of the job it would regain control and load and run the next until the batch was complete. Often the output of the batch would be written to magnetic tape and printed or punched offline. Examples of monitors were IBM’s Fortran Monitor System, SOS (Share Operating System), and finally IBSYS for IBM’s 709x systems in 1960. capable of began to appear in the 1960s. Instead of running one batch job at a time, these systems can have multiple batch programs running at the same time in order to keep the system as busy as possible. One or more programs might be awaiting input, one actively running on the CPU, and others generating output. Instead of offline input and output, programs called read jobs from cards, disk, or remote terminals and place them in a to be run. In order to prevent deadlocks the job scheduler needs to know each job’s reso……batch modeWhen can／should I use BATCH execution mode？#-rn

The DataStream API supports different runtime execution modes from which youcan choose depending on the requirements of your use case and thecharacteristics of your job.There is the “classic” execution behavior of the DataStream API, which we call execution mode. This should be used for unbounded jobs that requirecontinuous incremental processing and are expected to stay online indefinitely.Additionally, there is a batch-style execution mode that we callexecution mode. This executes jobs in a way that is more reminiscent of batchprocessing frameworks such as MapReduce. This should be used for bounded jobsfor which you have a known fixed input and which do not run continuously.Apache Flink’s unified approach to stream and batch processing means that aDataStream application executed over bounded input will produce the samefinal results regardless of the configured execution mode. It is important tonote what final means here: a job executing in mode might produceincremental updates (think upserts in a database) while a job wouldonly produce one final result at the end. The final result will be the same ifinterpreted correctly but the way to get there can be different.By enabling execution, we allow Flink to apply additional optimizationsthat we can only do when we know that our input is bounded. For example,different join/aggregation strategies can be used, in addition to a differentshuffle implementation that allows more efficient task scheduling and failurerecovery behavior. We will go into some of the details of the executionbehavior below.The execution mode can only be used for Jobs/Flink Programs that arebounded. Boundedness is a property of a data source that tells us whether allthe input coming from that source is known before execution or whether new datawill show up, potentially indefinitely. A job, in turn, is bounded if all itssources are bounded, and unbounded otherwise. execution mode, on the other hand, can be used for both bounded andunbounded jobs.As a rule of thumb, you should be using execution mode when your programis bounded because this will be more efficient. You have to useexecution mode batch mode when your……

batch modeProject design ＞ Simulation ＞ Batch mode-rn

The batch mode in PVsyst allows you to run several simulations in one go, while varying some simulation parameters. The results are gathered in a spreadsheet on which you can perform easily a parametric study. To perform a batch run, you start with a window where you can:In the spreadsheet – before executing the simulations:Run the simulations. This will create a result file in CSV format, that can again be opened in the spreadsheet software. – this indicates the CSV file to be defined for the parameters (fixed name, with BatchParams tag, always located in UserBatch ) – this indicates the output CSV file ( (fixed name, with BatchResults tag).You have to choose the parameters you want to modify during your multiple executions:– You may specifyThis can be used,for instance, to run all years from batch mode a time-serie. In this mode PVSyst first checks if the specified meteo files exist in the database and if they are valid. PVSyst will then consider the climatic distance between the geographical site and the meteo files, and, if above the limit *, the meteo site coordinates (lat, long, alt) will be transfered into the geographical site coordinates. – You may specify This can be used, for instance, to challenge several geographical options for your project. In this mode PVSyst first checks if the specified sites exist in the database. If so, 2 possibilities : – at least one meteo file (.MET) is available in the surroundings *. The nearest meteo file is then selected. – no meteo file available in the defined area. PVSyst will generate a synthetically meteo file using the Meteonorm Dll. – Choose if you want to start from VCi base files that differs from the current selection.– Choose if you want to save the simulation version files (*.VCi).– Consider the possibility to create hourly output files(*) Default setting is 15km. This limit may be changed, see the Hidden parameter "project site – Meteo distance for auto synthetic proposal" – category Miscellaneaous : meteo, simulation,…)– Modify tilt and azimuth for fixed tilt orientation (presently limited……