A process can be a written step-by-step description, or it may be rendered as aflow chart. A flow chart consists of graphical symbols connected together that indicate different parts of a procedure. For example, a box symbol indicates a process step or action, and a diamond shows where you...
Chapter 2 shows how you can use a parallel loop to apply a single operation to many data elements. This is data parallelism. Chapter 3 explains what happens when there are distinct asynchronous operations that can run simultaneously. In this situation, you can temporarilyforka program's flow of...
Description of "Figure 8-2 Data Flow Diagram for Joining Tables" Example 8-1 Running an Explain Plan for a Query on Customers and Sales Copy EXPLAIN PLAN FOR SELECT /*+ PARALLEL(4) */ customers.cust_first_name, customers.cust_last_name, MAX(QUANTITY_SOLD), AVG(QUANTITY_SOLD) FROM ...
When a set of parallel execution servers completes its operation, it moves on to operations higher in the data flow. For example, inFigure 21-3, if there was anotherORDERBYoperation after theORDERBY, the parallel execution servers performing the table scan would perform the secondORDERBYoperation...
In the diagram below, S2 is such a stage: Note that this process is fundamentally different from producing a collection of objects. A typical example where you might want to hatch your input is when processing text files, say line by line. If the stage that produced the lines was to ...
2.3Data Flow Computer [27,40–45,51–60,92] A data flowmodel of computationhas been proposed as an alternative to the conventional Von Neumann principle of execution. In the conventionalVon Neumann model, an instruction is executed only when the control reaches the instruction, although there mi...
The diagram below shows the hardware implementation of the parallel CRC algorithm introduced above. To improve the working frequency and throughput, the circuit design adopts an eight-stage pipelined architecture. The first five stages calculate the checksum of the input data and add it to the inter...
When a set of parallel server processes completes its operation, it moves on to operations higher in the data flow. For example, in the previous diagram, if there was another ORDER BY operation after the ORDER BY, the parallel server processes performing the table scan perform the second ORDER...
The query plan or data flow graph corresponding to this query is illustrated inFigure 18-4. Figure 18-4 Data Flow Diagram for Joining Tables Text description of the illustration cncpt019.gif Given two sets of parallel execution servers SS1 and SS2, the execution of this plan will proceed as...
Multiprox lets you partition a signal flow block diagram into regions for separate processors to execute. Multiprox automatically generates code for each processor, then compiles and downloads the code with all the necessary interprocessor communication. As a result, you can develop algorithms in ...