
allgather aims to first collect tables from other workers and then broadcast the collection. All workers should run it concurrently. The defination of the method is:
boolean allgather(final String contextName, final String operationName, final Table<P> table, final DataMap dataMap, final Workers workers)
contextName— the name of the contextoperationName— the name of the operationtable— the name of the data tabledataMap— the data mapworkers— the workers
Example
allgather(contextName, "allgather", table, dataMap, workers);